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Chain housing O-ring. Porsche 964 / 993 - 99970728840
99970728840
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
Chain housing O-ring, 6 x 2.5 mm
This original Porsche O-ring is used in the chain housing / oil bridge sealing area, helping prevent oil leaks and maintain correct sealing around the timing chain housing assembly.
Sold individually
Fits:
Porsche 964 1989 - 1994
Porsche 993 1994 - 1998
Diagram ref no 22
What This Part Does / Functions
• Seals the chain housing / oil bridge connection
• Helps prevent engine oil leaks
• Supports correct sealing around the timing chain housing area
• Helps maintain clean and reliable engine operation
• Replaces a hardened, flattened, cut or leaking original O-ring
• Provides correct OE Porsche size, material and fitment
• Supports correct reassembly after chain housing or oil bridge service
• Helps maintain factory engine sealing performance.
Why Replace This Part?
O-rings are exposed to engine oil, heat, pressure and age-related hardening. Over time, the seal can flatten, crack, swell or lose elasticity. Once the chain housing or oil bridge area has been disturbed, the O-ring should normally be replaced to ensure a reliable seal when reassembled. Replacing it with a Genuine Porsche OE chain housing O-ring helps prevent oil leaks and supports correct engine sealing.
Common Symptoms of a Failed Chain Housing O-Ring
• Oil leak around the chain housing area
• Oil residue near the oil bridge or chain tensioner area
• Persistent seepage after previous engine work
• Hardened, flattened or cracked O-ring during inspection
• Oil smell from hot engine components
• Oil drips underneath the vehicle
• Seal damage after chain housing service
• Need to reseal the oil bridge / chain housing connection.
When to Replace This Part
• When removing or refitting the chain housing components
• During chain housing, oil bridge or chain tensioner service
• If oil leakage is traced to the chain housing sealing area
• If the O-ring is hardened, flattened, cracked or damaged
• During engine rebuild or top-end repair
• When replacing related timing chain housing sealing components
• After separating the oil bridge from the chain housing
Where It Fits on the Car
This O-ring fits in the engine chain housing / oil bridge sealing area. It is used around the timing chain housing system on the flat-six engine and helps seal the oil passage connection where specified. Correct installation is important. The sealing surfaces should be clean, and the O-ring should be fitted without twisting, pinching or damage.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99970728840
The product you are viewing cross references to these numbers
This original Porsche O-ring is used in the chain housing / oil bridge sealing area, helping prevent oil leaks and maintain correct sealing around the timing chain housing assembly.
Sold individually
Fits:
Porsche 964 1989 - 1994
Porsche 993 1994 - 1998
Diagram ref no 22
What This Part Does / Functions
• Seals the chain housing / oil bridge connection
• Helps prevent engine oil leaks
• Supports correct sealing around the timing chain housing area
• Helps maintain clean and reliable engine operation
• Replaces a hardened, flattened, cut or leaking original O-ring
• Provides correct OE Porsche size, material and fitment
• Supports correct reassembly after chain housing or oil bridge service
• Helps maintain factory engine sealing performance.
Why Replace This Part?
O-rings are exposed to engine oil, heat, pressure and age-related hardening. Over time, the seal can flatten, crack, swell or lose elasticity. Once the chain housing or oil bridge area has been disturbed, the O-ring should normally be replaced to ensure a reliable seal when reassembled. Replacing it with a Genuine Porsche OE chain housing O-ring helps prevent oil leaks and supports correct engine sealing.
Common Symptoms of a Failed Chain Housing O-Ring
• Oil leak around the chain housing area
• Oil residue near the oil bridge or chain tensioner area
• Persistent seepage after previous engine work
• Hardened, flattened or cracked O-ring during inspection
• Oil smell from hot engine components
• Oil drips underneath the vehicle
• Seal damage after chain housing service
• Need to reseal the oil bridge / chain housing connection.
When to Replace This Part
• When removing or refitting the chain housing components
• During chain housing, oil bridge or chain tensioner service
• If oil leakage is traced to the chain housing sealing area
• If the O-ring is hardened, flattened, cracked or damaged
• During engine rebuild or top-end repair
• When replacing related timing chain housing sealing components
• After separating the oil bridge from the chain housing
Where It Fits on the Car
This O-ring fits in the engine chain housing / oil bridge sealing area. It is used around the timing chain housing system on the flat-six engine and helps seal the oil passage connection where specified. Correct installation is important. The sealing surfaces should be clean, and the O-ring should be fitted without twisting, pinching or damage.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99970728840
99970728840
The product you are viewing cross references to these numbers
Price: £1.36
In stock
Related products
Vehicle Group
- 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 1975-1977 3.0L Turbo (930)
- Porsche 914 (1970-1976)
Information
Chain tensioner repair kit Porsche 911 65-83 / 914 for 93010504900 & 93010505300 non-hydraulic Tensioners
One kit required per tensioner
Fits:
Porsche 911 1965-83
Porsche 914
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91110590101
The product you are viewing cross references to these numbers
One kit required per tensioner
Fits:
Porsche 911 1965-83
Porsche 914
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91110590101
93010505803
93010504900
9301050530
91110590101
The product you are viewing cross references to these numbers
Price: £45.78
In stock
Vehicle Group
- 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 914 (1970-1976)
Information
Replacement tensioner support shaft located inside timing chain case. Position: Right.
Fits:
Porsche 911 1965-89
Porsche 930 Turbo 1978-79
Porsche 914 1970-71
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
930105060S
The product you are viewing cross references to these numbers
Fits:
Porsche 911 1965-89
Porsche 930 Turbo 1978-79
Porsche 914 1970-71
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
930105060S
93010506201
93010506102
930105060S
The product you are viewing cross references to these numbers
Price: £39.00
In stock
Vehicle Group
- 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) TURBO 3.3L 1991-93
- Porsche 914 (1970-1976)
Information
Timing chain sprocket pin.
Fits:
Porsche 911 / 912 / 930 1965-89
Porsche 964 3.3L 1990-92
Porsche 914-6 1970-76
Click 'Zoom in' for large parts diagram.
Diagram ref no 7
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90110505602
The product you are viewing cross references to these numbers
Fits:
Porsche 911 / 912 / 930 1965-89
Porsche 964 3.3L 1990-92
Porsche 914-6 1970-76
Click 'Zoom in' for large parts diagram.
Diagram ref no 7
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90110505602
90110505602
90110505601
The product you are viewing cross references to these numbers
Price: £41.77
Orderable
Vehicle Group
- 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 1975-1977 3.0L Turbo (930)
- Porsche 914 (1970-1976)
Information
Chain tensioner repair kit Porsche 911 65-83 / 914 for 93010504900 & 93010505300 non-hydraulic Tensioners
One kit required per tensioner
Fits:
Porsche 911 1965-83
Porsche 914
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91110590101
The product you are viewing cross references to these numbers
One kit required per tensioner
Fits:
Porsche 911 1965-83
Porsche 914
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91110590101
93010505803
93010504900
9301050530
91110590101
The product you are viewing cross references to these numbers
Price: £29.50
In stock