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Oil drain plug O-ring. Porsche 993 1994-97 - 99970126940
99970126940/1
Vehicle Group
- 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
Information
Oil drain plug O-ring 11x2.5mm
This OE Match oil drain plug O-ring is a small sealing gasket designed for the oil drain plug on the oil thermostat housing in Porsche 911 (993) models. It provides a tight seal between the drain plug and the housing to prevent engine oil leaks during operation and after servicing.
Sold each
Fits:
Porsche 993 1994 - 1997
Diagram Ref No 6.
The oil drain plug O-ring is a rubber sealing ring installed on the oil drain plug located on the oil thermostat console or housing. Its function is to create a tight seal when the drain plug is tightened, preventing oil leakage from the engine lubrication system.
The OE Match version of part number 99970126940 is produced with the correct 11 × 2.5 mm dimensions, matching the original Porsche specification. This ensures proper compression and sealing performance when the drain plug is installed.
Because this component is removed whenever oil is drained from the thermostat housing, it is considered a service item and is commonly replaced during routine maintenance.
The O-ring seals the interface between the oil drain plug and the thermostat housing, preventing engine oil from leaking out of the lubrication system. It maintains proper oil pressure and protects the engine from oil loss.
Replacing the seal during servicing ensures the drain plug forms a secure seal and helps prevent oil seepage after maintenance.
Function
• Leak Prevention: Seals the oil drain plug on the thermostat housing
• Oil System Integrity: Maintains proper oil containment and pressure
• Service Seal: Designed to be replaced during oil system maintenance
• Engine Protection: Helps prevent oil loss and contamination
O-rings are exposed to heat, oil and repeated tightening cycles. Over time the rubber can harden, flatten or crack, which may lead to oil seepage or leaks around the drain plug. Replacing the O-ring whenever the plug is removed ensures the lubrication system remains properly sealed and helps prevent oil loss.
Consider replacing the O-ring when:
• Performing engine oil service
• Removing the oil thermostat housing drain plug
• The seal appears flattened, cracked or hardened
• Oil leakage is visible around the drain plug
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99970126940
The product you are viewing cross references to these numbers
This OE Match oil drain plug O-ring is a small sealing gasket designed for the oil drain plug on the oil thermostat housing in Porsche 911 (993) models. It provides a tight seal between the drain plug and the housing to prevent engine oil leaks during operation and after servicing.
Sold each
Fits:
Porsche 993 1994 - 1997
Diagram Ref No 6.
The oil drain plug O-ring is a rubber sealing ring installed on the oil drain plug located on the oil thermostat console or housing. Its function is to create a tight seal when the drain plug is tightened, preventing oil leakage from the engine lubrication system.
The OE Match version of part number 99970126940 is produced with the correct 11 × 2.5 mm dimensions, matching the original Porsche specification. This ensures proper compression and sealing performance when the drain plug is installed.
Because this component is removed whenever oil is drained from the thermostat housing, it is considered a service item and is commonly replaced during routine maintenance.
The O-ring seals the interface between the oil drain plug and the thermostat housing, preventing engine oil from leaking out of the lubrication system. It maintains proper oil pressure and protects the engine from oil loss.
Replacing the seal during servicing ensures the drain plug forms a secure seal and helps prevent oil seepage after maintenance.
Function
• Leak Prevention: Seals the oil drain plug on the thermostat housing
• Oil System Integrity: Maintains proper oil containment and pressure
• Service Seal: Designed to be replaced during oil system maintenance
• Engine Protection: Helps prevent oil loss and contamination
O-rings are exposed to heat, oil and repeated tightening cycles. Over time the rubber can harden, flatten or crack, which may lead to oil seepage or leaks around the drain plug. Replacing the O-ring whenever the plug is removed ensures the lubrication system remains properly sealed and helps prevent oil loss.
Consider replacing the O-ring when:
• Performing engine oil service
• Removing the oil thermostat housing drain plug
• The seal appears flattened, cracked or hardened
• Oil leakage is visible around the drain plug
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99970126940
99970126940
The product you are viewing cross references to these numbers
£3.45
Now £3.10
In stock
Related products
Vehicle Group
- 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
Information
Oil pipe thermostat to oil filter.
Fits:
Porsche 964 C2 / C4 / RS 1989-94
This product supersedes Porsche's old part numbers:
- 96420725404
- 96420725405
- 96420725406
- 96420725407
- 96420725408
Diagram Ref No 46
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96420725414
The product you are viewing cross references to these numbers
Fits:
Porsche 964 C2 / C4 / RS 1989-94
This product supersedes Porsche's old part numbers:
- 96420725404
- 96420725405
- 96420725406
- 96420725407
- 96420725408
Diagram Ref No 46
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96420725414
18227
96420725408
96420725407
96420725406
96420725405
96420725404
9600008
964 207 254 08
The product you are viewing cross references to these numbers
£155.95
Now £140.35
In stock
Vehicle Group
- 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
Information
Oil thermostat. Fits to oil lines.
Fits:
Porsche 964 1989-94
Please note: For early models with the early type thermostat you will also need:
96420724107 - Oil hose for thermostat
96420725103 - Oil pipe rubber (oil tank to thermostat)
Click 'Zoom in' for large parts diagram.
Diagram Ref No 11.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96420704708
The product you are viewing cross references to these numbers
Fits:
Porsche 964 1989-94
Please note: For early models with the early type thermostat you will also need:
96420724107 - Oil hose for thermostat
96420725103 - Oil pipe rubber (oil tank to thermostat)
Click 'Zoom in' for large parts diagram.
Diagram Ref No 11.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96420704708
96420704708
The product you are viewing cross references to these numbers
£467.14
Now £420.43
Delayed delivery
Vehicle Group
- 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
Information
Regulator Insert O-Ring.
Fits:
Porsche 964 1990-94
Porsche 993 1994-97
Click picture for large parts diagram.
Diagram Ref No 9.
Fits:
Porsche 964 1990-94
Porsche 993 1994-97
Click picture for large parts diagram.
Diagram Ref No 9.
£10.74
Now £9.67
Orderable