Please wait… 
Please wait while we process your order,
do not press the back button…
do not press the back button…
Enter your VAT number here and click Verify:
Your details have been verified. VAT number registered to:
,
.
Your order will now be zero rated for VAT purposes. We reserve the right to verify these details after your order request has been made and reinstate VAT if required.
Your VAT details were not recognised or were invalid. Your VAT number must be matched to your Billing Country as specified above. This is currently specified as . You do not need to enter the country code part of your VAT number as this has already been selected in your billing address details above.
The VAT number checking service is currently offline. Please supply your VAT details within the comments or special instructions field below and we will apply a VAT discount after placing your order request.
Category Filter
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: £2.60
In stock
Related products
Vehicle Group
- Porsche 970.1 Panamera V6 3.6L 2WD 2009-13
- Porsche 970.1 Panamera 4 V6 3.6L 4WD 2009-13
Information
Engine timing Chain Kit for camshaft and oil pump.
Fits:
Porsche 970 3.6L Panamera
Contains
1 x 94610725201
1 x 94810516910
1 x 94610725801
1 x 94810223111
1 x 94610518000
2 x 94810518111
1 x 94810502312
2 x 94810516612
1 x 94610506800
1 x 94810506510
1 x 94610725300
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94810516910
The product you are viewing cross references to these numbers
Fits:
Porsche 970 3.6L Panamera
Contains
1 x 94610725201
1 x 94810516910
1 x 94610725801
1 x 94810223111
1 x 94610518000
2 x 94810518111
1 x 94810502312
2 x 94810516612
1 x 94610506800
1 x 94810506510
1 x 94610725300
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94810516910
94810516902
94610725201
94810516910
94610725801
94810223111
94610518000
94810518111
94810502312
94810516612
94610506800
94810506510
94610725300
The product you are viewing cross references to these numbers
Price: £475.00
In stock
Vehicle Group
- Porsche 970.1 Panamera V6 3.6L 2WD 2009-13
- Porsche 970.1 Panamera 4 V6 3.6L 4WD 2009-13
- Porsche 970.2 Panamera V6 3.6L 2WD (310Hp) 2014-16
- Porsche 970.2 Panamera 4 V6 3.6L 4WD (310Hp) 2014-16
Information
Chain Adjuster.
Fits:
Porsche 970 Panamera 3.6L 2011-16
Click 'Zoom in' for large parts diagram.
Diagram ref no 14
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94610518000
The product you are viewing cross references to these numbers
Fits:
Porsche 970 Panamera 3.6L 2011-16
Click 'Zoom in' for large parts diagram.
Diagram ref no 14
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94610518000
94610518000
The product you are viewing cross references to these numbers
Price: £412.92
Orderable
Vehicle Group
- Porsche 958 Cayenne S V8 4.8L Petrol (400Hp) 2010-17
- Porsche 958 Cayenne GTS V8 4.8L Petrol (400Hp) 2010-17
- Porsche 958 Cayenne Turbo V8 4.8L Petrol (500Hp) 2010-17
- Porsche 958 Cayenne Turbo S V8 4.8L Petrol (550Hp) 2010-17
- Porsche 970.1 Panamera V6 3.6L 2WD 2009-13
- Porsche 970.1 Panamera 4 V6 3.6L 4WD 2009-13
- Porsche 970.1 Panamera S V8 4.8L 2009-13
- Porsche 970.1 Panamera 4S V8 4.8L 2009-13
- Porsche 970.1 Panamera GTS V8 4.8L 2011-13
- Porsche 970.1 Panamera Turbo V8 4.8L 2009-13
- Porsche 970.1 Panamera Turbo S V8 4.8L 2009-13
- Porsche 970.2 Panamera V6 3.6L 2WD (310Hp) 2014-16
- Porsche 970.2 Panamera 4 V6 3.6L 4WD (310Hp) 2014-16
- Porsche 970.2 Panamera GTS V8 4.8L 4WD (440Hp) 2014-16
- Porsche 970.2 Panamera Turbo V8 4.8L (520Hp) 2014-16
- Porsche 970.2 Panamera Turbo V8 Executive 2014-16
- Porsche 970.2 Panamera Turbo S V8 4.8L 2014-16
Information
Engine timing belt cover, Magnesium.
Fits:
Porsche 958 Cayenne S 4.8L 2011-14
Porsche 958 Cayenne GTS 4.8L 2013-14
Porsche 958 Cayenne Turbo 4.8L 2011-16
Porsche 970 Panamera 3.6L 2011-16
Porsche 970 Panamera S 4.8L 2010-13
Porache 970 Panamera GTS 4.8L 2013-16
Porsche 970 Panamera Turbo 4.8L 2011-16
Click 'Zoom in' for large parts diagram.
Diagram ref no 1
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94810102220
The product you are viewing cross references to these numbers
Fits:
Porsche 958 Cayenne S 4.8L 2011-14
Porsche 958 Cayenne GTS 4.8L 2013-14
Porsche 958 Cayenne Turbo 4.8L 2011-16
Porsche 970 Panamera 3.6L 2011-16
Porsche 970 Panamera S 4.8L 2010-13
Porache 970 Panamera GTS 4.8L 2013-16
Porsche 970 Panamera Turbo 4.8L 2011-16
Click 'Zoom in' for large parts diagram.
Diagram ref no 1
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94810102220
94810102220
The product you are viewing cross references to these numbers
Price: £733.64
Orderable