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- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 914 (1970-1976)
This gasket is used to seal the joint between the rear silencer (muffler) and the heat exchanger flange on classic Porsche 911 and 914/6 models, ensuring a tight, leak-free connection in the exhaust system.
Sold each, Typically two gaskets are required when reinstalling the exhaust rear silencer.
Fits:
Porsche 911 1965 - 1973 (need 2 pcs)
Porsche 914/6 1970 - 1972 (need 2pcs)
Diagram ref no 8
• Application: Seals the connection between the rear silencer (muffler) and the adjacent exhaust pipe/heat exchanger flange on classic air-cooled Porsche engines.
Installed at the rear silencer interface of the exhaust system, this gasket ensures:
• A secure, leak-resistant seal between exhaust components
• Smooth exhaust gas passage without loss of power or noise
• Reduced risk of harmful fumes entering cabin areas.
It is made to withstand the high heat and vibration levels typical of classic Porsche exhaust systems, and matches the original Porsche design for long-lasting performance.
Over time, the original exhaust gaskets can crack, harden, or deteriorate due to heat cycles, vibration, and corrosion. A worn or ineffective gasket can lead to:
• Exhaust leaks at the silencer joint
• Increased exhaust noise
• Reduced engine efficiency and performance
• Fumes entering the undercarriage or cabin
Replacing exhaust gasket restores proper sealing, preserves exhaust flow integrity, reduces noise, and helps maintain emissions compliance on classic Porsche vehicles.
Replace the exhaust rear silencer gasket if you notice:
• Audible exhaust leaks near the silencer connection
• Increased cabin noise or exhaust rasp
• Visible gasket deterioration or rust
• During exhaust system removal or reinstallation
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90111119300
The product you are viewing cross references to these numbers
- 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 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
The OE MATCH Exhaust Gasket – Heat Exchangers to Crossover or Pre-Silencer is a high-quality replacement sealing gasket designed to create a gas-tight connection between the exhaust heat exchangers and the crossover pipe or pre-silencer assembly. Engineered to OE specifications, this gasket helps prevent exhaust gas leaks while maintaining proper exhaust flow, system efficiency, and engine performance.
Sold Each.
Fits:
- 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 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
Diagram Ref No 6
Operating in an extremely high-temperature environment, the gasket is manufactured from durable heat-resistant materials capable of withstanding continuous thermal cycling and exhaust system pressures. It is an essential component whenever exhaust system sections are removed, repaired, or replaced.
What This Product Does:
- Creates a gas-tight seal between exhaust components
- Prevents exhaust gas leaks at the heat exchanger connection
- Maintains proper exhaust flow and backpressure
- Supports engine performance and efficiency
- Reduces exhaust noise caused by leaking joints
- Withstands high exhaust temperatures and thermal cycling
Symptoms Of Wear Or Failure:
- Exhaust blowing or ticking noises from the engine area
- Visible exhaust gas leaks around gasket joints
- Exhaust fumes or smells entering the cabin
- Reduced engine efficiency or performance
- Soot or carbon deposits around the exhaust flange
- Increased exhaust noise levels
- Failed emissions inspections in severe cases
- Difficulty maintaining a proper exhaust system seal after repairs
Why Replacement Matters:
- Restores a proper gas-tight exhaust seal
- Prevents exhaust leaks and unwanted noise
- Maintains correct exhaust flow characteristics
- Helps preserve engine performance and efficiency
- Reduces the risk of exhaust fumes entering the cabin
- Protects surrounding components from hot exhaust gases
- Supports emissions system performance and compliance
- Ensures reliable long-term operation of the exhaust system
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93011119206
The product you are viewing cross references to these numbers
- 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 964 (911) TURBO 3.6L 1991-93
The OE MATCH Exhaust Gasket, Cross Over Pipe to Pre-Silencer is a high-quality replacement sealing gasket designed to provide a secure, gas-tight connection between the exhaust crossover pipe and pre-silencer assembly. Engineered to OE specifications, this gasket prevents exhaust gas leaks while maintaining correct exhaust flow, backpressure characteristics, and overall exhaust system efficiency.
Fits:
- 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 964 (911) TURBO 3.6L 1991-93
Manufactured from durable, heat-resistant materials, the gasket is designed to withstand the extreme temperatures, pressure fluctuations, and vibration present within the exhaust system. It is an essential replacement component whenever the crossover pipe or pre-silencer is removed, serviced, or replaced.
What This Product Does:
- Creates a gas-tight seal between the crossover pipe and pre-silencer
- Prevents exhaust gas leaks at exhaust system joints
- Maintains correct exhaust flow and backpressure
- Supports engine performance and exhaust efficiency
- Reduces exhaust noise caused by leaking connections
- Withstands high exhaust temperatures and thermal cycling
Symptoms Of Wear Or Failure:
- Exhaust blowing, hissing, or ticking noises
- Visible exhaust gas leaks around flange connections
- Soot or carbon deposits near the gasket area
- Exhaust fumes or odours around the vehicle
- Increased exhaust noise levels
- Reduced exhaust system efficiency
- Difficulty maintaining a proper seal after exhaust repairs
- Potential emissions compliance issues caused by exhaust leaks
Why Replacement Matters:
- Restores a reliable gas-tight exhaust seal
- Prevents exhaust leaks and excessive noise
- Maintains proper exhaust flow characteristics
- Supports engine efficiency and performance
- Reduces the risk of exhaust fumes escaping from the system
- Protects surrounding components from hot exhaust gases
- Helps maintain emissions system effectiveness
- Ensures long-term durability and reliability of the exhaust system
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93011119308
The product you are viewing cross references to these numbers
- 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
The OE MATCH Exhaust Gasket, From Cross Over Pipe to Catalyst is a high-quality replacement sealing gasket designed to create a secure, gas-tight connection between the exhaust crossover pipe and catalytic converter. Manufactured to OE specifications, this gasket ensures proper sealing of the exhaust system, preventing leaks while maintaining optimal exhaust flow, engine performance, and emissions control.
Fits:
- 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
Constructed from durable, heat-resistant materials, the gasket is engineered to withstand the extreme temperatures, pressure fluctuations, and vibration encountered within the exhaust system. It is an essential replacement component whenever the catalytic converter or crossover pipe is removed, serviced, or replaced.
What This Product Does:
- Creates a gas-tight seal between the crossover pipe and catalytic converter
- Prevents exhaust gas leaks at exhaust flange connections
- Maintains proper exhaust flow and backpressure characteristics
- Supports engine performance and fuel efficiency
- Helps reduce exhaust noise caused by leaking joints
- Protects emissions system efficiency and catalyst operation
Symptoms Of Wear Or Failure:
- Exhaust blowing, hissing, or ticking noises
- Visible exhaust gas leaks around the catalytic converter connection
- Soot or carbon deposits around the flange area
- Exhaust fumes or odours around the vehicle
- Increased exhaust noise levels
- Reduced exhaust system efficiency
- Potential emissions-related issues or test failures
- Difficulty achieving a proper seal during exhaust repairs
Why Replacement Matters:
- Restores a reliable gas-tight exhaust seal
- Prevents exhaust leaks and unwanted noise
- Maintains correct exhaust flow and system efficiency
- Supports engine performance and emissions control
- Reduces the risk of exhaust fumes escaping from the system
- Protects nearby components from hot exhaust gases
- Helps maintain catalytic converter effectiveness
- Ensures long-term reliability and durability of the exhaust system
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96411119800
The product you are viewing cross references to these numbers
- 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 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) TURBO S 1994-97
Exhaust Crush Sealing Ring for Heat Exchangers
Sold each - 6 required per car
Restore a gas-tight seal to your Porsche exhaust system with
this OE Match Exhaust Crush Sealing Ring,
designed for the Porsche 964 and Porsche 993 heat exchanger assembly.
Manufactured to original equipment specifications, this premium exhaust sealing
ring compresses during installation to create a secure seal between exhaust
components, preventing exhaust gas leaks while maintaining optimum engine
performance.
Fits:
- 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 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) TURBO S 1994-97
Diagram ref no 3
Whether you're replacing heat exchangers, installing a new silencer or carrying out engine or exhaust maintenance, fitting new crush sealing rings is essential to ensure a reliable and leak-free exhaust system.
What Does the Exhaust Crush Sealing Ring Do?
The exhaust crush sealing ring is installed between mating exhaust components where it forms a high-temperature gas seal once compressed during assembly.
Its primary functions include:
- Creating a gas-tight seal between exhaust components.
- Preventing exhaust gas leaks.
- Maintaining correct exhaust back pressure.
- Supporting optimum engine performance.
- Reducing unwanted exhaust noise.
- Helping protect surrounding components from escaping hot exhaust gases.
Because the sealing ring is designed to deform during installation, it provides a highly effective seal capable of withstanding extreme exhaust temperatures.
Why Do Exhaust Crush Sealing Rings Fail?
Exhaust sealing rings operate under constant exposure to
high temperatures and pressure. Common causes of failure include:
- Compression during initial installation.
- Reuse after previous removal.
- Continuous heat cycling.
- Corrosion from moisture and condensation.
- Exhaust system movement.
- Age-related deterioration.
Once compressed, the sealing ring cannot return to its original shape, making it unsuitable for reuse.
When Should the Exhaust Crush Sealing Ring Be Replaced?
Replacement is recommended whenever:
- Heat exchangers are removed.
- Exhaust silencers are replaced.
- Exhaust manifolds are dismantled.
- Exhaust leaks are detected.
- Engine rebuilds are carried out.
- Any exhaust joint using the sealing ring is disturbed.
Most Porsche specialists recommend fitting new crush sealing rings every time the exhaust system is dismantled to guarantee a proper seal and avoid future exhaust leaks.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99311119500
The product you are viewing cross references to these numbers