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Engine timing chain tensioner O-ring, 12 x 1.78mm. Porsche 911 84-89 / 964 Turbo 3.0L - 99970169040
99970169040/1
Vehicle Group
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) TURBO 3.3L 1991-93
Information
Engine timing chain tensioner O-ring
This O-Ring is an OE-style sealing ring designed for the engine timing chain tensioner assembly on Porsche 911 and 964 Turbo models. It provides a leak-proof seal between the hydraulic chain tensioner and engine housing. The O-ring measures approximately 12 x 1.78 mm.
Sold individually, 2 required per engine
Fits:
Porsche 911 1984 - 1989
Porsche 964 Turbo 3.3L 1990 - 1992 (Engine code: 3069)
Diagram ref no 11
Installed between the hydraulic chain tensioner and engine housing, the O-ring prevents engine oil leakage while maintaining proper hydraulic pressure within the timing chain tensioner system. Correct sealing is essential for reliable chain tension control and accurate engine valve timing. A compromised seal may result in oil leaks, pressure loss, or reduced tensioner performance.
This O-ring is ideal for preventative maintenance, engine rebuilds, timing chain service work, or replacement during tensioner overhaul procedures.
The O-ring seals the hydraulic timing chain tensioner assembly, preventing oil leakage and helping maintain proper hydraulic pressure within the timing system. This supports reliable timing chain operation and accurate engine valve timing.
Function
• Seals hydraulic timing chain tensioner assembly
• Prevents engine oil leakage around tensioner housing
• Maintains hydraulic pressure within timing system
• Supports accurate timing chain tension operation
• Resists heat, oil exposure, and pressure cycling
Over time, engine O-rings can harden, flatten, or crack due to heat exposure, oil contamination, and age. A failing tensioner seal may cause oil leaks and reduced hydraulic pressure, potentially affecting timing chain tension stability. Replacing worn O-rings during service helps maintain reliable engine lubrication and timing system operation.
When to replace
• Oil leakage around timing chain tensioner
• During timing chain or tensioner servicing
• Hardened, flattened, or damaged O-ring seal
• During engine rebuild or overhaul
• Preventative maintenance on high-mileage engines
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99970169040
The product you are viewing cross references to these numbers
This O-Ring is an OE-style sealing ring designed for the engine timing chain tensioner assembly on Porsche 911 and 964 Turbo models. It provides a leak-proof seal between the hydraulic chain tensioner and engine housing. The O-ring measures approximately 12 x 1.78 mm.
Sold individually, 2 required per engine
Fits:
Porsche 911 1984 - 1989
Porsche 964 Turbo 3.3L 1990 - 1992 (Engine code: 3069)
Diagram ref no 11
Installed between the hydraulic chain tensioner and engine housing, the O-ring prevents engine oil leakage while maintaining proper hydraulic pressure within the timing chain tensioner system. Correct sealing is essential for reliable chain tension control and accurate engine valve timing. A compromised seal may result in oil leaks, pressure loss, or reduced tensioner performance.
This O-ring is ideal for preventative maintenance, engine rebuilds, timing chain service work, or replacement during tensioner overhaul procedures.
The O-ring seals the hydraulic timing chain tensioner assembly, preventing oil leakage and helping maintain proper hydraulic pressure within the timing system. This supports reliable timing chain operation and accurate engine valve timing.
Function
• Seals hydraulic timing chain tensioner assembly
• Prevents engine oil leakage around tensioner housing
• Maintains hydraulic pressure within timing system
• Supports accurate timing chain tension operation
• Resists heat, oil exposure, and pressure cycling
Over time, engine O-rings can harden, flatten, or crack due to heat exposure, oil contamination, and age. A failing tensioner seal may cause oil leaks and reduced hydraulic pressure, potentially affecting timing chain tension stability. Replacing worn O-rings during service helps maintain reliable engine lubrication and timing system operation.
When to replace
• Oil leakage around timing chain tensioner
• During timing chain or tensioner servicing
• Hardened, flattened, or damaged O-ring seal
• During engine rebuild or overhaul
• Preventative maintenance on high-mileage engines
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99970169040
99970169040
The product you are viewing cross references to these numbers
Price: €3.09
In stock
Related products
Vehicle Group
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- 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 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
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Carrera GT 2003-06
Information
Actuator Camshaft. Porsche 996 / 986 / 997 / 987 / 987C
Fits:
Porsche 996 C2 / C4 / C4S 2002>>
Porsche 986 Boxster 2.7L / 3.2L 1997-04
Porsche 987 Boxster 2005-08
Porsche 987C Cayman 2005-08
Porsche 997 2005-08
Porsche Carrera Gt 2004-06
This product supersedes Porsche's old part numbers:
- 99610530302
- 99610530303
- 99610530304
- 99610530305
Click 'Zoom in' for large parts diagram.
Diagram Ref No 41
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610530307
The product you are viewing cross references to these numbers
Fits:
Porsche 996 C2 / C4 / C4S 2002>>
Porsche 986 Boxster 2.7L / 3.2L 1997-04
Porsche 987 Boxster 2005-08
Porsche 987C Cayman 2005-08
Porsche 997 2005-08
Porsche Carrera Gt 2004-06
This product supersedes Porsche's old part numbers:
- 99610530302
- 99610530303
- 99610530304
- 99610530305
Click 'Zoom in' for large parts diagram.
Diagram Ref No 41
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610530307
99610530306
99610530303
99610530305
99610530307
The product you are viewing cross references to these numbers
Price: €365.96
In stock
Vehicle Group
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- 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 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 Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
Information
Chain adjuster, with green seal.
Fits:
Porsche 987 Boxster MKI 2005-08
Porsche 987 Cayman MKI 2005-08
Porsche 997 Carrera MKI 2005-08
Porsche 996 Carrera
Click 'Zoom in' for large parts diagram.
Diagram ref no 34
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610518802
The product you are viewing cross references to these numbers
Fits:
Porsche 987 Boxster MKI 2005-08
Porsche 987 Cayman MKI 2005-08
Porsche 997 Carrera MKI 2005-08
Porsche 996 Carrera
Click 'Zoom in' for large parts diagram.
Diagram ref no 34
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610518802
99610518801
99610518802
99610517651
The product you are viewing cross references to these numbers
Price: €195.58
Arriving soon
Vehicle Group
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- 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 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 Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
Information
Guide Rail - Cylinder 1-3 and 4-6
Fits:
Porsche 986 Boxster 2.7L / 3.2L 2003 - 2004
with Engine codes: M96.23 / M96.24
Porsche 987 Boxster 2.7L / 3.2L / 3.4L 2005 - 2008
with Engine codes M96.25 / M96.26 / M97.20 / M97.21 / M97.22
Porsche 987C 2.7L / 3.4L Cayman 2006 - 2008
with Engine codes M97.20 / M97.21 / M97.22
Porsche 996 3.6L C2 / C4 / C4S 2002 - 2005
with Engine codes M96.03
Porsche 997.1 3.6L /3.8L 2005 - 2008
with Engine codes M96.05 / M97.01
Diagram Ref No 33.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
996105
The product you are viewing cross references to these numbers
Fits:
Porsche 986 Boxster 2.7L / 3.2L 2003 - 2004
with Engine codes: M96.23 / M96.24
Porsche 987 Boxster 2.7L / 3.2L / 3.4L 2005 - 2008
with Engine codes M96.25 / M96.26 / M97.20 / M97.21 / M97.22
Porsche 987C 2.7L / 3.4L Cayman 2006 - 2008
with Engine codes M97.20 / M97.21 / M97.22
Porsche 996 3.6L C2 / C4 / C4S 2002 - 2005
with Engine codes M96.03
Porsche 997.1 3.6L /3.8L 2005 - 2008
with Engine codes M96.05 / M97.01
Diagram Ref No 33.
Related reference numbers
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996105
99610516400
99610505401
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Prices from: €48.55