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Piston Rings
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 356 1950-55
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65
Restore effective cylinder sealing, compression, and oil control during an engine rebuild with these OE Match Hastings 86mm Piston Rings, reference 0081186RJE. Designed for compatible 86mm piston and cylinder applications, this piston ring set provides a high-quality replacement solution for engine rebuilding, restoration, and performance applications where dependable sealing is essential.
Fits: Porsche 356 / 912
Ring Size: 1.5 x 1.5 x 3.0
Number of CYL's: 4
This is the replacement ring set for Retro Performance (0081186PJE), (0081186CJE), (0081186AJE), (0081186BJE) and (0081186JEP) Kits.
Hastings piston rings are designed to provide an effective sealing interface between the piston and cylinder wall. The compression rings help contain the pressure generated during combustion, reducing the amount of combustion gas that escapes past the piston into the crankcase. The oil-control rings regulate the lubricating oil film on the cylinder walls, removing excess oil while retaining sufficient lubrication for smooth piston movement. The rings also assist with transferring heat from the pistons into the cylinder walls.
What This Product Does:
- Creates an effective seal between the pistons and cylinder walls.
- Is designed for compatible 86mm piston applications.
- Helps retain combustion pressure within each cylinder.
- Supports strong and consistent engine compression.
- Reduces combustion gas leakage into the crankcase.
- Helps minimise excessive engine blow-by.
- Controls the lubricating oil film on the cylinder walls.
- Helps prevent excessive engine oil from entering the combustion chambers.
- Assists with transferring piston heat into the cylinder walls.
- Supports efficient combustion and dependable engine performance.
- Replaces worn, damaged, broken, or sticking piston rings.
Symptoms Of Wear Or Failure:
- Low or uneven cylinder compression.
- Excessive engine oil consumption.
- Blue or blue-grey smoke from the exhaust.
- Excessive crankcase pressure or blow-by.
- Reduced engine power or poor acceleration.
- Increased exhaust emissions.
- Oil-fouled spark plugs.
- Carbon deposits within the combustion chambers.
- Poor compression or leak-down test results.
- Excessive oil entering the combustion chambers.
- Broken, worn, seized, or damaged rings found during engine disassembly.
- Excessive cylinder bore or piston ring-groove wear.
Why Replacement Matters:
- Piston rings are essential for maintaining the cylinder seal required for efficient compression and combustion. When compression rings become worn, damaged, stuck, or lose their tension, combustion gases can escape past the pistons into the crankcase. This can reduce cylinder compression, decrease engine performance, and increase crankcase blow-by.
- Worn oil-control rings can allow excessive lubricating oil to enter the combustion chambers. This may result in increased oil consumption, blue exhaust smoke, spark plug fouling, carbon deposits, and increased emissions. Continued operation with poor ring sealing can also accelerate wear of the pistons, cylinder walls, and other internal engine components.
- Correct sizing and compatibility are particularly important when installing replacement rings. The 86mm specification must match the intended pistons and cylinder bores, while ring thickness and groove dimensions must also be correct for the piston design. Incorrect ring dimensions, excessive or insufficient end gaps, or an unsuitable cylinder surface finish can prevent proper sealing and potentially cause premature wear or engine damage.
- Replacing worn or damaged components with these OE Match Hastings 86mm Piston Rings 0081186RJE helps restore cylinder sealing, compression, oil control, and dependable engine performance when installed as part of a correctly measured and prepared engine rebuild.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
0081186RJE
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 356 1950-55
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65
Restore effective cylinder sealing, compression, and oil control during an engine rebuild with these OE Match 86mm Piston Rings, reference 0081186R. Designed for compatible 86mm piston and cylinder applications, this piston ring set provides a high-quality replacement solution for worn, damaged, broken, or sticking rings during engine rebuilding, restoration, or repair.
Fits: Porsche 356/912
Ring Size: 2.0 x 2.0 x 2.0 x 5.0
Number of CYL's: 4
This is a replacement set for Retro Performance (0081186PS) and (0081186PB) Kits.
Piston rings sit within precisely machined grooves around each piston and create the critical sealing interface between the piston and cylinder wall. The compression rings help contain the pressure generated during combustion, while the oil-control rings regulate the lubricating oil film on the cylinder walls. The rings also assist with transferring heat away from the piston into the cylinder wall.
What This Product Does:
- Creates an effective seal between the pistons and cylinder walls.
- Is designed for compatible 86mm piston applications.
- Helps retain combustion pressure within each cylinder.
- Supports strong and consistent engine compression.
- Reduces combustion gas leakage into the crankcase.
- Helps minimise excessive engine blow-by.
- Controls the lubricating oil film on the cylinder walls.
- Helps prevent excessive engine oil from entering the combustion chambers.
- Assists with transferring piston heat into the cylinder walls.
- Supports efficient combustion and dependable engine performance.
- Replaces worn, damaged, broken, or sticking piston rings.
Symptoms Of Wear Or Failure:
- Low or uneven cylinder compression.
- Excessive engine oil consumption.
- Blue or blue-grey smoke from the exhaust.
- Excessive crankcase pressure or blow-by.
- Reduced engine power or poor acceleration.
- Increased exhaust emissions.
- Oil-fouled spark plugs.
- Carbon deposits within the combustion chambers.
- Poor compression or leak-down test results.
- Excessive oil entering the combustion chambers.
- Broken, worn, seized, or damaged rings found during engine disassembly.
- Excessive cylinder bore or piston ring-groove wear.
Why Replacement Matters:
- Piston rings are essential for maintaining the cylinder seal required for efficient compression and combustion. When compression rings become worn, damaged, stuck, or lose their tension, combustion gases can escape past the pistons into the crankcase. This can result in reduced compression, loss of engine performance, and excessive blow-by.
- Worn oil-control rings can allow excessive lubricating oil to enter the combustion chambers. This may cause increased oil consumption, blue exhaust smoke, spark plug fouling, carbon deposits, and increased emissions. Continued operation with poor piston ring sealing can also accelerate wear of the pistons, cylinder walls, and other internal engine components.
- Correct sizing is particularly important when replacing piston rings. The 86mm specification must be correctly matched to the intended pistons and cylinder bores. Incorrect ring dimensions, excessive or insufficient end gaps, worn piston grooves, or an unsuitable cylinder surface finish can prevent new rings from sealing correctly and may result in premature wear or engine damage.
- Replacing worn or damaged components with these OE Match 86mm Piston Rings 0081186R helps restore cylinder sealing, compression, oil control, and dependable engine operation when installed as part of a correctly measured and prepared engine rebuild.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
0081186R
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 356C 1963-65
1.5 / 2.0 / 4.0

Fits:
Porsche 356C (1964-65)
Porsche 912 (1966-69)
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
61610390705
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
Restore effective cylinder sealing and dependable compression during an engine rebuild with these OE Match Chrome Top Compression Rings, reference 00891180R. Designed for compatible engine applications, the compression rings fit into the piston ring grooves and form a critical seal between the pistons and cylinder walls.
Fits: Porsche 911 1967-68 2.0L
Ring size: 1.5x1.5x4.0
Number of CYL's: 6
The top compression ring operates closest to the combustion chamber and is exposed to particularly high combustion pressures and temperatures. Its primary purpose is to contain combustion gases above the piston, helping maintain cylinder pressure and preventing excessive gases from escaping into the crankcase. The ring also assists with transferring heat from the piston into the cylinder wall.
What This Product Does:
- Create a combustion seal between the pistons and cylinder walls.
- Help retain combustion pressure within each cylinder.
- Support strong and consistent engine compression.
- Reduce combustion gases escaping into the crankcase.
- Help minimise excessive engine blow-by.
- Assist with transferring heat from the pistons into the cylinder walls.
- Provide a wear-resistant chrome running surface.
- Support efficient combustion and dependable engine performance.
- Replace worn, damaged, broken, or sticking compression rings.
- Provide an OE-style replacement for compatible engine rebuilds.
Symptoms Of Wear Or Failure:
- Low or uneven cylinder compression.
- Excessive crankcase pressure or blow-by.
- Reduced engine power or acceleration.
- Poor overall engine performance.
- Increased oil consumption.
- Blue or blue-grey exhaust smoke.
- Increased exhaust emissions.
- Oil-fouled spark plugs.
- Poor compression or leak-down test results.
- Excessive carbon deposits in the combustion chambers.
- Broken, worn, seized, or damaged compression rings during disassembly.
- Excessive wear of the piston ring grooves or cylinder bores.
Why Replacement Matters:
- Top compression rings are essential for containing the high pressures generated during combustion. As the rings and their running surfaces wear, the seal between the piston and cylinder wall can deteriorate, allowing combustion gases to pass into the crankcase. This can reduce compression, decrease engine performance, and increase blow-by.
- A damaged or broken compression ring may also score the cylinder wall or damage the piston ring groove. Continued operation can therefore turn a ring-related problem into a more extensive engine repair involving pistons, cylinders, or other internal components.
- Correct installation is particularly important with replacement compression rings. The piston ring grooves, cylinder bore diameter, taper, ovality, and surface finish should be inspected and measured. Ring end gap and side clearance must also be checked against the correct engine specifications. The cylinder preparation required for chrome-faced rings should be appropriate to the ring manufacturer's specifications to promote correct bedding and sealing.
- Replacing worn or damaged components with these OE Match Chrome Top Compression Rings 00891180R helps restore combustion sealing, cylinder compression, and dependable engine performance when installed as part of a correctly measured and prepared engine rebuild.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
00891180R
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
Restore effective cylinder sealing, compression, and oil control during an engine rebuild with this OE Match Piston Ring Set, available under references 00891181R and 00891182R. Designed for compatible engine applications, these piston rings fit into the machined grooves around each piston and form the essential sealing interface between the piston and cylinder wall.
Fits: Porsche 911 2.0L
Ring Size: 1.5 x 1.5 x 3.0
Number of CYL's: 6
This is the replacement ring set for Retro Performance 81mm (00891181PJE) and 82.5mm (00891182PJE) Kits.
Piston rings perform several critical functions within an internal combustion engine. The compression rings help contain combustion pressure above the piston, reducing the amount of combustion gas that escapes into the crankcase. The oil-control rings regulate the lubricating oil film on the cylinder walls, removing excess oil while retaining sufficient lubrication for smooth piston movement. The rings also help transfer heat from the pistons into the cylinder walls.
What This Product Does:
- Creates an effective seal between the pistons and cylinder walls.
- Helps retain combustion pressure within each cylinder.
- Supports strong and consistent engine compression.
- Reduces combustion gas leakage into the crankcase.
- Helps minimise excessive engine blow-by.
- Controls the lubricating oil film on the cylinder walls.
- Helps prevent excessive engine oil from entering the combustion chambers.
- Assists with transferring piston heat into the cylinder walls.
- Supports efficient combustion and dependable engine performance.
- Replaces worn, damaged, broken, seized, or sticking piston rings.
- Provides an OE-style replacement for compatible engine rebuilds.
Symptoms Of Wear Or Failure:
- Low or uneven cylinder compression.
- Excessive engine oil consumption.
- Blue or blue-grey smoke from the exhaust.
- Excessive crankcase pressure or blow-by.
- Reduced engine power or poor acceleration.
- Increased exhaust emissions.
- Oil-fouled spark plugs.
- Carbon deposits within the combustion chambers.
- Poor compression or leak-down test results.
- Excessive oil entering the combustion chambers.
- Broken, worn, seized, or damaged rings discovered during engine disassembly.
- Excessive cylinder bore or piston ring-groove wear.
Why Replacement Matters:
- Piston rings are essential for maintaining the cylinder seal required for efficient compression and combustion. When compression rings become worn, damaged, stuck, or lose their tension, combustion gases can escape past the pistons into the crankcase. This can reduce cylinder compression, decrease engine performance, and increase crankcase blow-by.
- Worn oil-control rings can allow excessive lubricating oil to enter the combustion chambers. This may result in increased oil consumption, blue exhaust smoke, spark plug fouling, carbon deposits, and increased emissions. Continued operation with poor ring sealing can also accelerate wear of the pistons, cylinder walls, and other internal engine components.
- Correct ring selection and installation are particularly important during an engine rebuild. Incorrect ring dimensions, excessive or insufficient ring end gaps, worn piston grooves, or an unsuitable cylinder surface finish can prevent the new rings from sealing correctly. Insufficient ring end clearance may cause the ring ends to contact as operating temperatures increase, potentially resulting in ring breakage, piston damage, or cylinder scoring.
- Replacing worn or damaged components with the correct OE Match Piston Ring Set – 00891181R or 00891182R helps restore cylinder sealing, compression, oil control, and dependable engine performance when installed as part of a correctly measured and prepared engine rebuild.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
0089118
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
6 sets per engine. Price is for 1 set.

Sizes: 80x1.5mm / 80x2.0mm / 80x4.0mm
Fits:
PORSCHE 911L 2.0 L 01.63 - 08.67 96Kw 130hp
PORSCHE 911T 2.0 T 08.68 - 02.72 81Kw 110hp
PORSCHE 911E 2.0 E 09.68 - 12.69 103Kw 140hp
PORSCHE 911S 2.0 S 07.66 - 11.68 118Kw 160hP
Engine Code: 901.02
PORSCHE 911S 2.0 S 09.68 - 12.69 125kw 170hp
Click 'Zoom' for large parts diagram.
Diagram Ref No 23
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90110390100
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)

Fits:
Porsche 911TU 1965-68
Click 'Zoom' for large parts diagram.
Diagram Ref No 23. One ring only. Marked in green.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90110331203
The product you are viewing cross references to these numbers
Piston Rings – Precision Engine Sealing & Performance for Porsche Models
The piston rings in your Porsche engine are critical components that maintain compression, regulate oil consumption, and ensure efficient combustion. Positioned around the pistons, they create a tight seal between the piston and cylinder wall, keeping combustion gases contained while allowing smooth piston movement.
At Design911, we supply a comprehensive range of piston rings designed for both classic and modern Porsche engines. Manufactured from high-strength, heat-resistant materials, these rings deliver exceptional sealing, reduced friction, and long-term reliability. Whether you’re performing a full engine rebuild or a top-end refresh, our quality piston rings are engineered for perfect fitment and optimum performance.
What Do Piston Rings Do?
Piston rings perform three vital functions within the
engine:
- Sealing
the combustion chamber – to prevent gas leakage and maintain
compression.
- Controlling
oil consumption – by scraping excess oil from the cylinder walls.
- Conducting heat – transferring it from the piston to the cylinder wall to prevent overheating.
These rings are essential for maintaining engine
efficiency, power output, and longevity. Properly functioning piston rings
ensure consistent compression, clean emissions, and smooth performance.
Why Do Piston Rings Fail?
Piston rings are subject to intense heat, pressure, and friction. Over time, these conditions can lead to wear, loss of sealing ability, or even engine damage.
Common Causes of Piston Ring Failure Include:
- Excessive
wear or scoring from poor lubrication or debris.
- Carbon
build-up causing sticking or uneven sealing.
- Overheating
that leads to ring warping or loss of tension.
- Corrosion
or fatigue from oil contamination.
- Improper installation during rebuilds or maintenance.
Symptoms of worn piston rings include blue exhaust smoke, loss of compression, reduced performance, or excessive oil consumption — all signs that replacement is required.
Why Replace Piston Rings?
Replacing worn or damaged piston rings restores compression, improves combustion efficiency, and protects your Porsche engine from further wear. Our high-performance piston rings are built to withstand extreme conditions, ensuring consistent sealing and reduced friction.
Key Benefits:
- Restores compression and engine power.
- Reduces oil consumption and exhaust smoke.
- Improves fuel efficiency and combustion quality.
- Constructed from durable, heat- and corrosion-resistant alloys.
- Direct-fit
compatibility for a wide range of Porsche models.
- Ideal for rebuilds, restorations, or performance upgrades.
Investing in premium-quality piston rings ensures lasting performance, smoother running, and optimal engine reliability.
Highlights:
- Precision-engineered piston rings for Porsche engines.
- Restores compression, performance, and oil control.
- Made from high-strength, wear-resistant materials.
- Perfect fit for classic and modern Porsche models.
- Essential for rebuilds and long-term engine health.
- Ensures smooth, efficient combustion and lower emissions.