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Oil Pipes & Hoses
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
The OE Match Collapsible CNC Alloy Oil Tube Kit is a premium replacement oil line assembly designed to provide a durable and practical solution for servicing and repairing the engine lubrication system. Manufactured from precision CNC-machined aluminium alloy and supplied complete with seals, this collapsible oil tube is engineered to OE specifications for fit, performance and reliability.
Set Of 4.
Fits:
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
The collapsible design allows easier installation in applications where a standard rigid oil tube may require significant engine disassembly. Designed to maintain proper oil flow throughout the engine lubrication system, this oil tube helps ensure critical engine components receive the oil supply necessary for cooling, lubrication and long-term durability.
What This Product Does:
- Transfers engine oil between key lubrication system components.
- Maintains consistent oil flow and oil pressure.
- Supports lubrication of critical engine components.
- Helps dissipate heat through the engine oil circuit.
- Features a collapsible design for simplified installation.
- Includes replacement seals for a complete repair solution.
- Helps maintain the integrity and efficiency of the engine lubrication system.
Symptoms Of Wear Or Failure:
- Visible engine oil leaks.
- Oil drips beneath the vehicle.
- Low engine oil level between services.
- Oil residue around oil line connections.
- Reduced engine oil pressure.
- Oil warning light illumination.
- Burning oil smell from oil contacting hot engine components.
- Corrosion, cracking or physical damage to the oil tube.
- Signs of deteriorated or leaking seals.
Why Replacement Matters:
- Engine oil tubes operate under constant exposure to heat, pressure, vibration and environmental contaminants. Over time, oil lines can corrode, crack, deform or develop leaks around joints and sealing surfaces. Ageing seals may also lose elasticity, resulting in oil seepage or pressure loss.
- A leaking or damaged oil tube can reduce oil pressure and lubrication efficiency, potentially leading to accelerated engine wear, overheating and costly engine damage. Even small oil leaks can worsen over time, creating reliability issues and increasing maintenance costs.
- Replacing a worn oil tube with an OE Match collapsible CNC alloy assembly restores proper oil circulation and system integrity. The collapsible design simplifies installation while the supplied seals help ensure a leak-free repair. Manufactured to OE standards, this replacement provides excellent durability, reliable performance and long-term protection for your Porsche engine.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93010704001
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
This set of 4 collapsible oil return tubes provides a complete replacement solution for all return tubes on an air-cooled Porsche flat-six engine. Ideal for full engine rebuilds or preventative maintenance, this set ensures uniform sealing and reliable oil return on all cylinders.
SET OF 4
Fits:
Porsche 911 911 2.0L 1965 - 1969
Porsche 911 1970 - 1989
Porsche 964 1989 - 1994
Porsche 993 1994 - 1998
Diagram ref no 13.
Each tube expands into place and seals using high-temperature O-rings, eliminating the need for cylinder head removal. Replacing all four tubes at once prevents future oil leaks, ensures consistent oil pressure, and maintains proper lubrication throughout the engine.
Perfect for owners restoring or maintaining 911, 964 and 993 models where original fixed or aging tubes are known to fail after decades of heat cycling.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93010704001
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
SET OF 4 TUBE.
This OE-Match set includes the non-collapsible oil tube (part number 90110735101) and the matching o-ring seals (9997071124A) required for secure, leak-free installation.
Fits:
Porsche 911 2.0L 1965 - 1969
Porsche 911 1970 - 1989
Porsche 964 1989 - 1994
Porsche 993 1994 - 1998
Diagram Ref No 36 + 37
The tube directs oil back into the sump or oil galleries, while the o-ring ensures a reliable seal at the mating junction to prevent leaks and maintain system integrity.
It replaces worn or damaged lines and seals with components manufactured to original specifications for correct fit, function, and durability.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90110735101
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Collapsible CNC Alloy Oil Tube Kit
Sold each – 4 required per car
The OE Match Collapsible CNC Alloy Oil Tube Kit is a
high-quality replacement solution for the engine oil return tubes fitted to
air-cooled Porsche 911, 964 and 993 models.
Fits:
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Diagram Ref No 13
Manufactured from precision CNC-machined aluminium alloy, these collapsible oil tubes offer improved durability and easier installation compared with conventional rigid oil return pipes.
Supplied as a individually with replacement seals, four kits are needed per engine and these are ideal for repairing engine oil leaks, replacing ageing oil return pipes or carrying out a comprehensive engine restoration.
What Does the Collapsible Oil Tube Do?
The oil return tubes allow engine oil to drain from the cylinder head and valve gear areas back towards the engine crankcase.
This return flow is an important part of the engine's lubrication system, allowing oil to circulate correctly while preventing it from escaping through the engine casing.
The collapsible design allows the tubes to be compressed during installation and extended into position, making replacement considerably easier than fitting conventional one-piece rigid tubes.
Why Do Oil Return Tubes Fail?
Original oil return tubes and their seals are exposed to repeated heating and cooling cycles, engine vibration and general ageing.
Common causes of failure include:
Hardened or deteriorated rubber O-ring seals Corrosion of original metal oil tubes Cracked or damaged tube sections Distortion caused by previous repairs Incorrect installation or damaged sealing surfaces Long-term exposure to engine heat and oil contaminationIn many cases, oil leaks develop because the original seals lose their flexibility and can no longer maintain an effective seal.
When Should They Be Replaced?
Replacement is recommended when the oil return tubes show visible corrosion, physical damage or signs of oil leakage.
Common symptoms include:
Oil dripping from beneath the engine Wet or oily areas around the return tubes Burning oil smells caused by oil reaching hot exhaust components Increasing oil consumption due to external leakage Deteriorated or hardened oil tube sealsThe tubes should also be inspected during engine rebuilding, cylinder head servicing or restoration work.
Why Upgrade to CNC Alloy Collapsible Oil Tubes?
The CNC-machined aluminium alloy construction provides a durable replacement for ageing original components.
Unlike rigid oil return tubes, the collapsible design allows the replacement tubes to be fitted without the extensive dismantling normally associated with removing fixed-length tubes.
This makes them particularly useful for repairing oil leaks while the engine remains assembled.
Replacing all four tubes together also provides an opportunity to renew the complete set of seals, reducing the likelihood of further leaks from other ageing tubes.
Installation Notes
Before installation, inspect the oil return tube mounting points and sealing surfaces for damage or contamination.
Lubricate the replacement seals with a suitable lubricant, install the tubes in their compressed position and extend them fully into the correct mounting locations.
Ensure the tubes are correctly seated and secured according to the manufacturer's instructions.
Following installation, run the engine and inspect the repaired areas for oil leaks.
Porsche 911, 964 & 993 Collapsible Oil Return Tubes and Engine Lubrication Parts
The engine oil return tubes are essential components of the air-cooled Porsche flat-six lubrication system, allowing oil to return from the cylinder head assemblies to the crankcase.
Over time, original oil return tubes can develop leaks due to corrosion, damaged seals and repeated engine heat cycles. These problems are particularly common on older Porsche 911, 964 and 993 models.
The OE Match Collapsible CNC Alloy Oil Tube Kit, reference 93010704001, provides a practical replacement solution featuring precision-machined aluminium alloy tubes and new sealing components.
Buy a set of 4 oil Tubes and Save moneyRelated reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93010704001
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Comes with the seals and circlip
Fits:
Porsche 911 911 2.0L 1965-1969
Porsche 911 1970-89
Porsche 964 1989-94
Porsche 993 1994-98
Click 'Zoom in' for large parts diagram.
Diagram Ref No 36 and 37
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93010704001
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
This oil tube kit includes the collapsible pipe sections, necessary seals and the circlip required for a leak-free seal. Its design mirrors the original specification, ensuring correct fitment, alignment and sealing within the engine bay - making it suitable for rebuilds, restoration projects, or as a replacement for ageing/failed oil return tubes.
Fits:
Porsche 911 2.0L 1965 - 1969
Porsche 911 1970 - 1989
Porsche 964 1989 - 1994
Porsche 993 1994 - 1998
Diagram Ref No 36 and 37
• Kit Contents: Collapsible oil tube(s), required seals, O-rings/circlip for sealing - sold per tube, 4 required per engine per manufacturer’s recommendation.
• Recommended Use: Replacement during engine rebuilds, oil system refurbishment, or whenever original oil return lines show signs of age - cracking, leaks, oil seepage or pressure loss.
Collapsible oil tube kit:
• Provides a sealed, flexible return path for engine oil from the heads/galley back to the sump or oil tank.
• Allows for thermal expansion, engine movement, and vibration, reducing stress on hard oil lines and preventing fractures or leaks.
• Maintains correct oil circulation and pressure, ensuring effective lubrication and cooling of the engine even under load or temperature variation.
• Replaces brittle, corroded, cracked or otherwise degraded original tubes - restoring reliable oil return and system integrity.
Original rigid or old oil return tubes often suffer from material fatigue, hardening, cracking, or corrosion after many years and thermal cycles. A failing oil return tube can lead to:
• Oil leaks - risking oil starvation, contamination or engine damage
• Reduced oil return flow - causing poor lubrication, overheating or premature engine wear
• Pressure variances - resulting in oil pressure instability or sump starvation under load
• Safety and reliability issues - a failing return path can lead to catastrophic engine damage.
Replacing with a correctly spec’d collapsible tube ensures proper oil circulation, reliable return flow, leak-free sealing, and long-term engine reliability - essential for preserving performance and longevity on 911 / 964 / 993 engines (and compatible layouts).
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93010704001
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Comes with the seals and circlip
Fits:
Porsche 911 911 2.0L 1965-1969
Porsche 911 1970-89
Porsche 964 1989-94
Porsche 993 1994-98
Click picture for large parts diagram.
Diagram Ref No 13.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93010704001
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MK1 GT2 2007-09
Fits:
Porsche 911 - 1978 to 1989
Porsche 964 - 1989 to 1994
Porsche 993 - 1994 to 1998
Porsche 986 Boxster - 1997 to 2004
Porsche 996 - 1997 to 2005
Porsche 997.1 - 2005 to 2008
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99951255400
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Used for various applications
Fits:
Porsche 964 - 1989 to 1994
Porsche 993 - 1994 to 1997
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99908409401
The product you are viewing cross references to these numbers
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
The Porsche Oil Hose 99320725301 is a genuine replacement oil-system hose designed for Porsche 993 models.
Fits:
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Diagram Ref No 48
The hose forms part of the engine oil circulation and cooling system, providing a secure route for engine oil between associated pipes and oil-system components.
Because the air-cooled Porsche 993 relies heavily on engine oil for both lubrication and heat management, maintaining leak-free oil hoses is especially important.
This genuine Porsche replacement is suitable for renewing an original hose that has become hardened, cracked, oil-soaked, damaged or is beginning to leak.
What This Product Does:
Engine oil performs several critical functions within the Porsche 993, including lubrication, cleaning and heat removal.
The oil hose forms part of the circuit that allows oil to circulate between the engine and associated oil-system components.
Its main functions include:
- Carrying engine oil through the lubrication and cooling circuit
- Maintaining a sealed oil connection
- Supporting reliable engine oil circulation
- Helping maintain correct oil pressure and flow
- Supporting engine lubrication
- Helping transfer heat away from internal engine components
- Preventing oil loss when correctly sealed
- Maintaining the original factory oil-system routing
The hose itself does not generate oil pressure, but it must remain unrestricted and leak-free for the oil system to operate correctly.
Symptoms Of Wear Or Failure:
Oil hoses deteriorate over time due to heat, oil exposure, vibration and repeated thermal cycling.
Common signs that replacement may be required include:
- Visible engine oil leakage
- Wet or oily deposits around the hose
- Oil seepage around hose connections
- Cracks or splits in the hose material
- Rubber becoming hard or brittle
- Hose becoming swollen or unusually soft
- Deterioration of the outer surface
- Corroded or damaged hose fittings
- Falling engine oil level
- Oil stains beneath the vehicle
- Burning-oil smell after driving
- Smoke if leaking oil reaches hot exhaust components
- Oil contamination around surrounding engine components
A falling oil level can also originate elsewhere in the engine, so the complete lubrication system should be inspected when a leak is found.
Why Replacement Matters:
Reliable oil circulation is essential to the longevity of the Porsche 993's air-cooled engine.
If an oil hose begins to leak, the engine can gradually lose oil. Even a relatively small leak may eventually reduce the oil level enough to compromise lubrication and cooling.
More significant oil loss can contribute to:
- Reduced engine lubrication
- Increased friction and wear
- Higher operating temperatures
- Reduced oil pressure
- Bearing or internal engine damage
- Breakdown caused by severe oil loss
Leaking oil may also reach hot exhaust or engine components, producing smoke and creating an increased fire risk.
Replacing a deteriorated oil hose helps restore:
- A sealed engine oil circuit
- Reliable oil circulation
- Correct oil-system integrity
- Reduced risk of oil loss
- Effective engine lubrication
- Reliable heat management
On an air-cooled Porsche, maintaining the oil circuit is particularly important because engine oil plays a major role in controlling operating temperature as well as lubricating internal components.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99320725301
The product you are viewing cross references to these numbers
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Oil Hose.
The Genuine Porsche Oil Hose 99320725500 is an original equipment replacement lubrication system component designed for Porsche 911 (993) models manufactured between 1994 and 1998.
Fits:
Diagram Ref No 50
Manufactured to Porsche's original specifications, this oil hose forms part of the engine oil tank and associated oil line assembly, helping maintain reliable oil circulation and secure connections within the engine's dry-sump lubrication system.
The Porsche 993 features an air-cooled flat-six engine that relies on effective engine oil circulation for lubrication and heat management. The oil hose provides a flexible connection within the oil system, helping accommodate normal engine vibration, operating temperatures and movement between connected components.
Engine oil hoses are continuously exposed to heat, oil pressure, vibration and ageing. Over time, the original hose material can harden, crack, swell or deteriorate, potentially resulting in oil leaks and reduced lubrication system reliability.
The Genuine Porsche Oil Hose provides a direct original equipment replacement solution, helping restore the integrity of the oil system while maintaining the correct hose routing, dimensions and connection arrangement.
Ideal for routine engine maintenance, oil tank repairs, lubrication system refurbishment and classic Porsche restoration projects, this component helps protect the engine against oil loss and maintain dependable long-term operation.
What This Product Does:
The oil hose forms part of the Porsche 993 engine oil tank and pipework assembly, providing a sealed passage for engine oil between the connected lubrication system components.
Its key functions include:
- Engine Oil Transfer: Provides a passage for oil within the engine's dry-sump lubrication system.
- Oil System Circulation: Supports the movement of engine oil between designated oil system components.
- Secure Oil Connections: Maintains a reliable connection between the associated oil pipes and fittings.
- Leak Prevention: Helps prevent engine oil escaping from the lubrication system when correctly fitted and sealed.
- Lubrication System Integrity: Supports the engine's ability to circulate oil for essential lubrication requirements.
- Engine Heat Management: Contributes to the wider oil circulation system, which helps remove heat from internal engine components.
- Vibration Accommodation: Provides flexibility to accommodate normal engine vibration and movement.
- Temperature Resistance: Designed to withstand the operating temperatures encountered within the engine oil system.
- Component Protection: Helps reduce the risk of oil loss that could affect engine lubrication.
- Original Equipment Fitment: Maintains Porsche's factory-specified oil hose configuration and routing.
Symptoms Of Wear Or Failure:
Over time, exposure to high temperatures, engine oil, vibration and general ageing can cause the original oil hose to deteriorate.
Common signs include:
- Visible Engine Oil Leaks: Oil dripping beneath the vehicle or collecting around hose connections may indicate a damaged or leaking hose.
- Oil Seepage Around Connections: Small amounts of oil appearing at the hose ends may indicate deterioration or loose retaining clamps.
- Cracked or Split Hose Material: Visible cracks, splits or surface damage may indicate that the hose is approaching the end of its service life.
- Hardened or Brittle Rubber: Repeated heat exposure can cause the hose to lose flexibility, increasing the risk of cracking.
- Swollen or Softened Hose: Prolonged oil exposure or material deterioration may cause swelling, deformation or soft sections.
- Oil Residue Accumulation: Excessive oily deposits around the hose or adjoining components may indicate ongoing leakage.
- Burning Oil Smell: Leaking engine oil contacting hot exhaust or engine components may produce a noticeable burning smell.
- Engine Oil Level Dropping: Oil escaping through a damaged hose may cause the engine oil level to decrease.
- Frequent Oil Top-Ups: Repeatedly needing to add engine oil may indicate an external leak or another lubrication system problem.
- Damaged Hose Connections: Corroded clamps, damaged fittings or deteriorated sealing surfaces may allow oil to escape.
- Visible Hose Deformation: Kinks, flattening or distortion may affect the hose's intended routing and operation.
- Oil Contamination on Surrounding Components: Escaping oil may collect on nearby engine parts, mounting brackets or underbody panels.
- Low Oil Pressure Warning: Significant oil loss or a serious lubrication system fault may cause reduced oil pressure.
- Smoke from the Engine Area: Oil leaking onto sufficiently hot components may produce visible smoke.
Why Replacement Matters:
- Replacing a worn, leaking or damaged engine oil hose is essential for maintaining the reliability, lubrication performance and long-term protection of your Porsche 993's air-cooled engine.
- The Porsche 993 uses a dry-sump lubrication system that circulates oil through a network of pipes, hoses and associated components. Engine oil performs several essential functions, including lubricating moving parts, reducing friction and assisting with heat removal.
- The oil hose plays an important role in maintaining a secure connection within this system.
- As the original hose ages, repeated heating and cooling cycles can cause the material to become hardened, cracked or weakened. Once the hose begins to deteriorate, oil may escape around the hose body or its connections.
- Even relatively small oil leaks can progressively worsen, particularly when the engine is operating at higher temperatures.
- Continued oil loss can reduce the amount of oil available within the lubrication system, increasing the risk of inadequate lubrication and damage to internal engine components.
- In severe cases, significant oil loss or an interrupted oil supply may result in serious engine damage involving bearings, camshafts and other moving components.
- Escaping engine oil can also collect on surrounding engine parts and exhaust components, creating unpleasant odours, smoke and potentially a fire hazard if oil reaches sufficiently hot surfaces.
- Installing a genuine Porsche replacement oil hose helps restore a secure and reliable oil connection, reducing the risk of leakage while maintaining the original lubrication system arrangement.
- Replacing ageing oil hoses during oil tank refurbishment or major engine maintenance also provides an opportunity to inspect surrounding pipes, fittings and retaining clamps for corrosion or deterioration.
- For classic Porsche owners, preserving the condition of the original dry-sump lubrication system is particularly important because reliable oil circulation contributes directly to the long-term durability of the air-cooled flat-six engine.
- The Genuine Porsche Oil Hose 99320725500 provides an original equipment replacement solution designed to help prevent oil loss, maintain lubrication system integrity and support dependable engine operation.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99320725500
The product you are viewing cross references to these numbers
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Fits:
Porsche 911 1984-89
Porsche 964 1989-94
Porsche 993 1995-98
Click 'Zoom in' for large parts diagram.
Diagram ref no 10
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99951116202
The product you are viewing cross references to these numbers
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
These are long pipes running down the side of the car
Fits:
Porsche 993 -1994 to 1998
Click 'Zoom in' for large parts diagram.
Diagram Ref No 1
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99320713505
The product you are viewing cross references to these numbers
PLEASE NOTE:
Due to its size, weight or fragility, this item requires additional protective packaging to make sure it reaches you undamaged. A small packing surcharge is applied to cover these specialist materials and the extra care taken preparing your order for transit.
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
These are long pipes running down the side of the car
Fits:
Porsche 993 1994-98
Click 'Zoom in' for large parts diagram
Diagram Ref No 1
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99320713505
The product you are viewing cross references to these numbers
PLEASE NOTE:
Due to its size, weight or fragility, this item requires additional protective packaging to make sure it reaches you undamaged. A small packing surcharge is applied to cover these specialist materials and the extra care taken preparing your order for transit.
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Fits:
Porsche 993 1993-95
Click 'Zoom in' for large parts diagram.
Diagram ref no 7
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99320726501
The product you are viewing cross references to these numbers
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
These are long pipes running down the side of the car
Fits:
Porsche 993 1994-98
Click pictrue for large parts diagram.
Diagram Ref No 2
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99320713304
The product you are viewing cross references to these numbers
PLEASE NOTE:
Due to its size, weight or fragility, this item requires additional protective packaging to make sure it reaches you undamaged. A small packing surcharge is applied to cover these specialist materials and the extra care taken preparing your order for transit.
-
crankcase left 993 1994-98 101-05
-
chain case and chain adjuster 993 1994-98 103-05
-
oil tank lines 993 1994-98 104-01
-
oil cooler lines 993 1994-98 104-05
-
air cooling 993 1994-98 105-00
-
air duct 993 1994-98 105-05
-
l-jetronic flap connection 993 CARRERA/4 M64.05/06/07/08 1994-98 107-00
-
l-jetronic intake distributor 993 CARRERA M64.05/06/07/08 and 993 TURBO M64.60 1994-98 107-10
-
intake distributor 993 CARRERA/4 M64.21/22/23/24 and 993 CARRERA RS M64.20 1994-98 107-12
-
compressor and mounting driving mechanism for 993 CARRERA/4 1994-95 and 993 TURBO 1995-98 813-20
Engine Oil Pipes & Hoses – Reliable Lubrication Flow for Porsche Performance
The engine oil pipes and hoses in your Porsche are essential components of the lubrication system, responsible for transporting oil between the engine, oil cooler, and various internal components. These lines maintain the correct oil pressure and flow, ensuring smooth operation, reduced friction, and long-term protection of your high-performance engine.
At Design911, we supply a wide range of oil pipes and hoses developed to meet the high standards of Porsche vehicles. Manufactured using heat-resistant rubber, reinforced steel, or braided lines, these components are designed for durability, leak prevention, and perfect fitment. Whether you’re maintaining a classic 911 or servicing a modern Cayman or Panamera, our manufacturer-quality oil hoses ensure reliable oil circulation and peak performance.
What Do Engine Oil Pipes and Hoses Do?
Oil pipes and hoses are critical for transporting pressurised oil through the engine’s lubrication and cooling circuits.
Core Functions:
- Carry
oil between the engine block, oil cooler, and filter housing.
- Maintain
consistent oil pressure for proper lubrication.
- Prevent
leaks and ensure stable oil flow under all conditions.
- Assist with cooling, transferring hot oil to radiators or heat exchangers.
Without functioning oil pipes and hoses, oil flow becomes inconsistent — leading to reduced lubrication, overheating, and potential engine damage.
Why Do Oil Pipes and Hoses Fail?
Over time, exposure to heat, pressure, and oil contamination causes hoses and pipes to weaken or deteriorate.
Common Causes of Failure Include:
- Age-related
hardening or cracking of rubber hoses.
- Corrosion
or fatigue in metal or braided lines.
- Loose
fittings or clamps leading to leaks.
- Oil
degradation that damages internal linings.
- Vibration and heat cycles, especially in performance engines.
Symptoms of failure include visible oil leaks, burning smells, low oil pressure, or warning lights — all of which indicate it’s time for inspection or replacement.
Why Replace Oil Pipes & Hoses?
Replacing damaged or leaking oil pipes ensures reliable lubrication and pressure regulation throughout your engine. Our high-quality, direct-fit replacements are designed to restore original flow characteristics, prevent leaks, and resist the extreme conditions found in performance driving.
Key Benefits:
- Restores correct oil pressure and flow.
- Prevents leaks and contamination.
- Improves lubrication and cooling efficiency.
- Constructed from durable, oil- and heat-resistant materials.
- Compatible with air-cooled and water-cooled Porsche models.
- Ideal for engine rebuilds, servicing, and preventive maintenance.
Precision oil hoses and pipes are essential for keeping your Porsche’s lubrication system performing at its best — ensuring reliability and longevity on road or track.
Highlights:
- Precision-engineered oil pipes and hoses for Porsche engines.
- High-strength, corrosion-resistant materials for long service life.
- Direct-fit replacements designed for leak-free operation.
- Improves lubrication reliability and oil pressure stability.
- Perfect for maintenance, upgrades, or full engine rebuilds.
- Suitable for classic air-cooled and modern Porsche models.