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Your Vehicle // Porsche // 911 & 912 (1965-1989) // 911 1978-1983 3.0L / SC
Brackets / Clamps / Straps
SET OF 2 straps, with bolts
Upgrade your classic Porsche 911 with the Titanium Exhaust Silencer Straps. These straps secure the rear silencers (mufflers) to the chassis, keeping the exhaust system firmly mounted in place. Designed with the same precise fit as the original parts, the titanium straps deliver superior strength, excellent corrosion resistance, and reduced weight. Perfect for restoration projects or enhancing long-term reliability of your 911, this set ensures both silencers are supported with lasting durability.
Fits:
Porsche 911 1965 - 1983
Diagram ref no 20
Made to handle heat, road vibration, and exposure to elements, the titanium strap prevents the muffler from sagging or vibrating excessively. If the original stainless or steel strap is rusted, loose, or damaged, this titanium upgrade will restore secure mounting, reduce noise, and protect other exhaust and chassis components from damage.
Why replacing it matters:
If you leave a worn strap in place: the muffler may drop or become misaligned, leading to vibrations, noise, or even exhaust contacting underbody parts. Over time, this can damage hangers, exhaust joints, or brackets, potentially causing exhaust leaks or more significant repairs.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90111115704TSET
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
Fits:
Porsche 911 1975-83
Porsche 930 Turbo 1975-77
For cars with air con
Click 'Zoom in' for large parts diagram.
Diagram ref no 30
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93011115402
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)
The Genuine Porsche Clamp SP 68/20 (Part Number: 9995122460C) is an original equipment fastening component designed for selected classic Porsche 911, 930 Turbo and 964 heating and exhaust heat exchanger assemblies.
Sold Each.
Fits:
- 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 911 1978-1989 3.3L Turbo (930)
- 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
Diagram Ref No 20
This specialised clamp is used to secure the connection between the engine's heat exchanger outlet and the associated hot-air hose, elbow or adapter.
The air-cooled Porsche 911 heating system uses heat exchangers surrounding sections of the exhaust system to warm air before directing it through the vehicle's heating ducts and into the passenger compartment.
The Clamp SP 68/20 helps maintain a secure connection within this heated-air delivery arrangement.
Manufactured to Porsche's original equipment specification, the clamp is designed to provide the appropriate fastening arrangement for the specified duct connection.
During operation, the heating system is exposed to elevated temperatures, vibration and repeated thermal expansion and contraction.
A correctly fitted clamp helps prevent the duct connection from loosening, reducing unwanted hot-air leakage and maintaining the intended flow of heated air through the system.
Over time, original clamps may become corroded, distorted or weakened by repeated exposure to heat and moisture.
Damaged threads, a fractured band or deteriorated tightening hardware can prevent the clamp from securing the connection correctly.
A loose clamp may allow the heating hose to move or become partially detached, leading to a reduction in heating efficiency, unwanted rattling or warm air escaping before it reaches the cabin.
Replacing a worn or damaged clamp with a Genuine Porsche component helps restore secure duct attachment, maintain the original heating arrangement and support reliable cabin heating performance.
What This Product Does:
The Clamp SP 68/20 is a mechanical fastening component used within the engine heat exchanger's hot-air ducting arrangement.
Its primary function is to secure the specified heating hose or elbow to the associated heat exchanger connection.
When the engine is running, the heating system uses air warmed by the heat exchangers.
This heated air travels through a series of ducts, hoses and heater control components before reaching the cabin.
The clamp helps maintain the connection between two parts of this airflow circuit.
Its main functions include:
- Securing hot-air duct connections: Holds the specified heater hose or elbow firmly against its mating connection.
- Supporting cabin heating: Helps maintain the heated-air passage from the heat exchanger towards the passenger compartment.
- Reducing unwanted air leakage: Helps prevent warm air escaping through an inadequately secured joint.
- Maintaining correct hose positioning: Keeps the connected hose or adapter seated in its intended location.
- Reducing movement and vibration: Limits unwanted movement at the duct connection.
- Supporting heating efficiency: Helps ensure heated air follows its intended route.
- Maintaining original heating-system construction: Preserves the factory fastening arrangement.
- Providing secure mechanical retention: Holds the connection together under normal operating conditions.
- Supporting heater system repairs: Allows damaged or corroded fastening hardware to be renewed.
- Maintaining reliable duct attachment: Helps prevent the hose or elbow from becoming detached.
Symptoms Of Wear Or Failure:
The clamp operates in an area exposed to engine heat, road moisture, corrosion and vibration.
Although relatively simple in construction, prolonged service may affect its ability to maintain secure fastening.
Common signs of a worn or damaged clamp include:
- Reduced cabin heating performance: A loose hot-air connection may allow heated air to escape before reaching the passenger compartment.
- Weak airflow from heater outlets: A partially detached hose may reduce the amount of warm air reaching the heating system.
- Visible corrosion: Rust may weaken the clamp or prevent its tightening mechanism from operating correctly.
- Loose heater hose: The connected hose may move because the clamp no longer provides sufficient retention.
- Detached hot-air duct: A severely damaged or missing clamp may allow the hose or elbow to separate.
- Rattling near the heat exchanger: An insecure duct connection may produce vibration-related noises.
- Damaged clamp band: Cracking, splitting or physical distortion may affect fastening.
- Stripped tightening mechanism: Damaged threads may prevent the clamp from being tightened securely.
- Seized fastening hardware: Corrosion may prevent the clamp from loosening or tightening during maintenance.
- Distorted clamp shape: Excessive tightening or mechanical damage may prevent even contact around the connection.
- Visible gaps around the joint: The heater hose or adapter may no longer sit correctly.
- Repeated loosening: A weakened clamp may fail to maintain secure attachment.
- Abrasion marks: Movement between the hose and adjoining components may produce wear.
- Damaged hose end: An incorrectly fitted or overtightened clamp may deform the connected heater hose.
- Missing clamp: Previous repairs may have left the heating duct without its correct retaining component.
Why Replacement Matters:
Replacing a defective heating duct clamp is important for maintaining the correct connection between the heat exchanger and the cabin heating system.
A corroded, loose or distorted clamp may no longer provide sufficient fastening force.
This can allow the connected hose or elbow to move, leak heated air or become detached.
Continued operation with an insecure duct connection may reduce heating performance and contribute to wear of the associated hose or adapter.
Installing a Genuine Porsche replacement Clamp SP 68/20 helps to:
- Restore secure heater hose attachment: Replace damaged fastening hardware.
- Maintain heated-air delivery: Help preserve the intended airflow route from the heat exchanger.
- Reduce unwanted hot-air leakage: Address air loss caused by a loose connection.
- Support cabin heating performance: Maintain the connection needed for effective heating.
- Prevent hose detachment: Restore the intended mechanical retention.
- Reduce rattling and vibration: Secure components that have become loose.
- Replace corroded hardware: Renew ageing clamps affected by heat and road moisture.
- Protect neighbouring components: Help prevent movement and abrasion caused by an insecure duct.
- Support heat exchanger servicing: Provide the correct clamp when associated hoses or adapters are removed.
- Maintain original fitment: Preserve Porsche's intended heater duct connection.
- Support classic Porsche restoration: Replace damaged or missing original hardware.
- Maintain Genuine Porsche quality: Use a factory-specified replacement for the relevant connection.
Replacement is recommended when the clamp is cracked, heavily corroded, distorted, missing or unable to tighten securely.
If the connected heater hose or heat exchanger outlet is damaged, replacing the clamp alone may not restore the connection.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9995122460C
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 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- 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
Fits:
Porsche 911 G model with 3.6 L engine 2.7-3.2L 08/1973-07/1989
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
1620650200
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
OE Match exhaust bracket for Porsche 911 models from 1969–1983. This Black bracket supports the exhaust assembly and helps maintain its positioning.
Fits:
Porsche 911 1969 - 1983
Diagram reference: 19.
What This Product Does
The bracket forms part of the exhaust mounting assembly, working with the associated clamps and fixings to hold the silencer in position. Correct support limits unwanted movement and helps avoid additional strain on adjoining exhaust components.
Functions
- Provides support for the exhaust assembly.
- Helps retain the intended silencer position.
- Restricts movement that can contribute to rattling or contact with surrounding components.
Technical Details
- Brand: OE Match; supplied colour: Black.
- Associated part references: 90111115104 / 90111115103.
Symptoms of Fault
- Rattling or knocking from the exhaust area.
- A silencer that hangs lower or sits unevenly.
- Visible corrosion, fractures or distortion in the bracket.
- Excessive exhaust movement or vibration.
Why Replacement Matters
A damaged support can allow the exhaust to shift, placing additional load on its joints and neighbouring mountings. Renewing a deteriorated bracket helps restore the intended mounting arrangement. Inspect the clamps, straps and fasteners at the same time, as worn supporting hardware may also require attention.
FAQs
Should existing exhaust straps be reused?
Inspect their condition first. Corroded, damaged or stretched straps should be renewed rather than relied upon to support the assembly.
What should be checked during installation?
Confirm bracket compatibility, silencer alignment and clearance around nearby bodywork. Examine the associated fixings and follow the applicable fitting instructions.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90111115104
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
Fits:
Porsche 911 1965-83
Click 'Zoom in' for large parts diagram.
Diagram Ref No 19
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90111115104
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
Fits:
Porsche 911 1969-83
Click 'Zoom in' for large parts diagram.
Diagram Ref No 19
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90111115104
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
2 pcs required, price is for each.
Fits:
Porsche 911 1975 - 1989
Porsche 930 Turbo
Diagram ref no 14
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90007423302
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)
2 pcs required, price is for each.
Fits:
Porsche 911 1975 - 1989
Porsche 930 Turbo
Diagram ref no 14
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90007423302
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)
Exhaust Clamp for Cross Over Pipe Clamp Half
Sold each - 2 required per car
Maintain a secure and leak-free exhaust system with Exhaust
Clamp, designed for use on the cross over pipe of Porsche 911
models produced between 1975 and 1989. Manufactured from mild steel, this clamp
need two matching half sections that bolt together around the exhaust
pipe connection, providing the clamping force required to secure and seal the
joint.
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
Diagram ref no 11
The cross over pipe forms an important part of the air-cooled Porsche exhaust system, helping direct exhaust gases between engine banks and associated exhaust components. The clamp plays a critical role in maintaining correct pipe alignment while preventing movement, vibration and exhaust leaks.
Over time, original exhaust clamps can become corroded, weakened or damaged due to repeated heat cycles, moisture exposure and road contamination. Replacing worn clamps helps ensure reliable exhaust system operation and supports long-term durability.
What Does an Exhaust Clamp Do?
An exhaust clamp secures adjoining exhaust components together while helping maintain a tight and stable connection.
A properly functioning exhaust clamp helps:
- Secure exhaust pipe joints
- Maintain correct pipe alignment
- Reduce exhaust movement and vibration
- Help prevent exhaust gas leaks
- Support gasket sealing performance
- Improve exhaust system reliability
- Protect connected exhaust components
Without sufficient clamping force, exhaust joints can loosen and allow gases to escape.
Symptoms of Wear or Failure
Exhaust clamps operate in one of the harshest environments on the vehicle and are constantly exposed to heat, corrosion and vibration.
Common signs that replacement may be required include:
- Visible rust or corrosion
- Cracked or weakened clamp sections
- Loose exhaust joints
- Exhaust blowing noises
- Rattling from the exhaust system
- Exhaust leaks around pipe connections
- Soot deposits around clamp areas
- Distorted or damaged clamp halves
- Difficulty maintaining correct torque
A failing clamp can allow excessive movement within the exhaust system, leading to leaks and additional component wear.
Why Replacement Matters
Replacing a worn exhaust clamp helps maintain exhaust system integrity and prevents unnecessary stress on surrounding components.
Benefits include:
- Restores secure pipe connections
- Reduces exhaust leaks
- Improves exhaust system stability
- Minimises vibration and rattles
- Helps maintain proper exhaust flow
- Protects connected pipes and silencers
- Supports reliable long-term performance
- Improves repair and restoration quality
For classic air-cooled Porsche 911 models, replacing ageing exhaust hardware is an important part of maintaining both performance and reliability.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91111118700
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
Exhaust Clamp for Cross Over Pipe - Clamp Made Out of 2 Halves
Maintain a secure and leak-free exhaust system with Exhaust
Clamp, designed for use on the cross over pipe of Porsche 911
models produced between 1975 and 1989. Manufactured from mild steel, this clamp
consists of two matching half sections that bolt together around the exhaust
pipe connection, providing the clamping force required to secure and seal the
joint.
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
Diagram ref no 11
The cross over pipe forms an important part of the air-cooled Porsche exhaust system, helping direct exhaust gases between engine banks and associated exhaust components. The clamp plays a critical role in maintaining correct pipe alignment while preventing movement, vibration and exhaust leaks.
Over time, original exhaust clamps can become corroded, weakened or damaged due to repeated heat cycles, moisture exposure and road contamination. Replacing worn clamps helps ensure reliable exhaust system operation and supports long-term durability.
What Does an Exhaust Clamp Do?
An exhaust clamp secures adjoining exhaust components together while helping maintain a tight and stable connection.
A properly functioning exhaust clamp helps:
- Secure exhaust pipe joints
- Maintain correct pipe alignment
- Reduce exhaust movement and vibration
- Help prevent exhaust gas leaks
- Support gasket sealing performance
- Improve exhaust system reliability
- Protect connected exhaust components
Without sufficient clamping force, exhaust joints can loosen and allow gases to escape.
Symptoms of Wear or Failure
Exhaust clamps operate in one of the harshest environments on the vehicle and are constantly exposed to heat, corrosion and vibration.
Common signs that replacement may be required include:
- Visible rust or corrosion
- Cracked or weakened clamp sections
- Loose exhaust joints
- Exhaust blowing noises
- Rattling from the exhaust system
- Exhaust leaks around pipe connections
- Soot deposits around clamp areas
- Distorted or damaged clamp halves
- Difficulty maintaining correct torque
A failing clamp can allow excessive movement within the exhaust system, leading to leaks and additional component wear.
Why Replacement Matters
Replacing a worn exhaust clamp helps maintain exhaust system integrity and prevents unnecessary stress on surrounding components.
Benefits include:
- Restores secure pipe connections
- Reduces exhaust leaks
- Improves exhaust system stability
- Minimises vibration and rattles
- Helps maintain proper exhaust flow
- Protects connected pipes and silencers
- Supports reliable long-term performance
- Improves repair and restoration quality
For classic air-cooled Porsche 911 models, replacing ageing exhaust hardware is an important part of maintaining both performance and reliability.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91111118700
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
Fits:
Porsche 911 1975-89
Porsche 930 Turbo
Click 'Zoom in' for large parts diagram.
Diagram ref no 15
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90091009602
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)
Cross Over Pipe Exhaust Sealing Ring
Restore proper exhaust sealing and eliminate unwanted
exhaust leaks with Cross Over Pipe Exhaust Sealing Ring, designed
for Porsche 911 models produced between 1975 and 1989. This sealing ring is
used within the cross over pipe section of the exhaust system, creating a
gas-tight seal between connected exhaust components.
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)
Diagram ref no 13
The cross over pipe is a critical part of the air-cooled Porsche exhaust system, helping balance exhaust gas flow and directing gases efficiently through the exhaust assembly. The sealing ring ensures that exhaust gases remain contained within the system, preventing leaks that can reduce performance, increase noise and affect overall driving enjoyment.
Over time, exhaust sealing rings are subjected to extreme temperatures, vibration, pressure fluctuations and corrosion. As the seal ages, it can become compressed, brittle or damaged, leading to exhaust leaks and reduced system efficiency.
Replacing worn sealing rings whenever exhaust components are removed is essential for maintaining proper exhaust system performance and reliability.
What Does a Cross Over Pipe Exhaust Sealing Ring Do?
The exhaust sealing ring sits between mating exhaust components and creates a heat-resistant seal that prevents exhaust gases from escaping.
A properly functioning sealing ring helps:
- Maintain a leak-free exhaust system
- Ensure correct exhaust gas flow
- Reduce exhaust noise
- Support engine efficiency
- Prevent exhaust fumes escaping at joints
- Maintain correct exhaust back pressure
- Protect surrounding components from hot gas leakage
Without an effective seal, exhaust gases can escape before reaching the silencer system.
Symptoms of Wear or Failure
Exhaust sealing rings naturally deteriorate due to constant exposure to heat and vibration.
Common signs of a failing sealing ring include:
- Exhaust blowing noises
- Ticking sounds from the exhaust system
- Visible soot deposits around joints
- Increased exhaust noise
- Exhaust fumes around the vehicle
- Reduced engine efficiency
- Poor sealing after exhaust disassembly
- Signs of compression or deterioration during inspection
Even a small leak can become progressively worse if the sealing ring is not replaced.
Why Replacement Matters
Replacing a worn exhaust sealing ring helps maintain exhaust system integrity and prevents secondary damage to other exhaust components.
Benefits include:
- Restores leak-free exhaust operation
- Improves exhaust system efficiency
- Reduces unwanted exhaust noise
- Helps maintain correct exhaust flow
- Protects surrounding exhaust components
- Improves repair reliability
- Supports long-term durability
- Enhances restoration quality
For classic air-cooled Porsche 911 models, maintaining correct exhaust sealing is essential for performance, reliability and driving enjoyment.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91111118903
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)
Cross Over Pipe Exhaust Sealing Ring
Restore proper exhaust sealing and eliminate unwanted
exhaust leaks with Cross Over Pipe Exhaust Sealing Ring, designed
for Porsche 911 models produced between 1975 and 1989. This sealing ring is
used within the cross over pipe section of the exhaust system, creating a
gas-tight seal between connected exhaust components.
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)
Diagram ref no 13
The cross over pipe is a critical part of the air-cooled Porsche exhaust system, helping balance exhaust gas flow and directing gases efficiently through the exhaust assembly. The sealing ring ensures that exhaust gases remain contained within the system, preventing leaks that can reduce performance, increase noise and affect overall driving enjoyment.
Over time, exhaust sealing rings are subjected to extreme temperatures, vibration, pressure fluctuations and corrosion. As the seal ages, it can become compressed, brittle or damaged, leading to exhaust leaks and reduced system efficiency.
Replacing worn sealing rings whenever exhaust components are removed is essential for maintaining proper exhaust system performance and reliability.
What Does a Cross Over Pipe Exhaust Sealing Ring Do?
The exhaust sealing ring sits between mating exhaust components and creates a heat-resistant seal that prevents exhaust gases from escaping.
A properly functioning sealing ring helps:
- Maintain a leak-free exhaust system
- Ensure correct exhaust gas flow
- Reduce exhaust noise
- Support engine efficiency
- Prevent exhaust fumes escaping at joints
- Maintain correct exhaust back pressure
- Protect surrounding components from hot gas leakage
Without an effective seal, exhaust gases can escape before reaching the silencer system.
Symptoms of Wear or Failure
Exhaust sealing rings naturally deteriorate due to constant exposure to heat and vibration.
Common signs of a failing sealing ring include:
- Exhaust blowing noises
- Ticking sounds from the exhaust system
- Visible soot deposits around joints
- Increased exhaust noise
- Exhaust fumes around the vehicle
- Reduced engine efficiency
- Poor sealing after exhaust disassembly
- Signs of compression or deterioration during inspection
Even a small leak can become progressively worse if the sealing ring is not replaced.
Why Replacement Matters
Replacing a worn exhaust sealing ring helps maintain exhaust system integrity and prevents secondary damage to other exhaust components.
Benefits include:
- Restores leak-free exhaust operation
- Improves exhaust system efficiency
- Reduces unwanted exhaust noise
- Helps maintain correct exhaust flow
- Protects surrounding exhaust components
- Improves repair reliability
- Supports long-term durability
- Enhances restoration quality
For classic air-cooled Porsche 911 models, maintaining correct exhaust sealing is essential for performance, reliability and driving enjoyment.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91111118903
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)
Cross Over Pipe Exhaust Sealing Ring Washer
Restore secure exhaust sealing with Cross Over Pipe Exhaust
Sealing Ring Washer, designed for Porsche 911 models produced from
1975 to 1989. This sealing washer is used on the cross over pipe section of the
exhaust system, helping create a tight, reliable seal between exhaust
components.
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)
Diagram ref no 12
The cross over pipe is exposed to high temperatures, vibration and exhaust gas pressure. The sealing ring washer helps maintain correct joint compression, reducing the risk of exhaust leaks, rattles and poor system alignment. When worn or damaged, the washer may no longer seal effectively, allowing exhaust gases to escape.
Replacing this washer during exhaust repairs, cross over pipe removal or restoration work helps ensure a professional, leak-free installation.
What Does an Exhaust Sealing Ring Washer Do?
An exhaust sealing ring washer supports the sealing joint between exhaust components. It helps maintain clamping pressure and assists the sealing ring or joint in preventing exhaust gases from escaping.
A correctly fitted sealing washer helps provide:
- Secure exhaust joint sealing
- Reduced risk of exhaust leaks
- Correct cross over pipe fitment
- Improved exhaust system stability
- Better gasket and sealing ring performance
- Reduced vibration and exhaust noise
- Reliable long-term exhaust operation
Symptoms of Wear or Failure
Common signs that an exhaust sealing washer may need
replacement include:
- Exhaust blowing noises
- Soot marks around exhaust joints
- Increased exhaust noise
- Rattling from the cross over pipe area
- Poor sealing after exhaust refitting
- Corrosion or distortion of the washer
- Loose or uneven exhaust joint compression
- Exhaust fumes around the rear of the vehicle
Why Replacement Matters
A worn or damaged sealing washer can compromise the exhaust joint, leading to leaks, vibration and premature wear of surrounding exhaust parts.
Replacement helps:
- Restore correct exhaust sealing
- Prevent exhaust gas leaks
- Improve exhaust system reliability
- Reduce unwanted noise and vibration
- Maintain proper exhaust flow
- Protect connected exhaust components
- Improve repair and restoration quality
- Support long-term durability
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91111118802
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)
Cross Over Pipe Exhaust Sealing Ring Washer
Restore secure exhaust sealing with Cross Over Pipe Exhaust
Sealing Ring Washer, designed for Porsche 911 models produced from
1975 to 1989. This sealing washer is used on the cross over pipe section of the
exhaust system, helping create a tight, reliable seal between exhaust
components.
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)
Diagram ref no 12
The cross over pipe is exposed to high temperatures, vibration and exhaust gas pressure. The sealing ring washer helps maintain correct joint compression, reducing the risk of exhaust leaks, rattles and poor system alignment. When worn or damaged, the washer may no longer seal effectively, allowing exhaust gases to escape.
Replacing this washer during exhaust repairs, cross over pipe removal or restoration work helps ensure a professional, leak-free installation.
What Does an Exhaust Sealing Ring Washer Do?
An exhaust sealing ring washer supports the sealing joint between exhaust components. It helps maintain clamping pressure and assists the sealing ring or joint in preventing exhaust gases from escaping.
A correctly fitted sealing washer helps provide:
- Secure exhaust joint sealing
- Reduced risk of exhaust leaks
- Correct cross over pipe fitment
- Improved exhaust system stability
- Better gasket and sealing ring performance
- Reduced vibration and exhaust noise
- Reliable long-term exhaust operation
Symptoms of Wear or Failure
Common signs that an exhaust sealing washer may need
replacement include:
- Exhaust blowing noises
- Soot marks around exhaust joints
- Increased exhaust noise
- Rattling from the cross over pipe area
- Poor sealing after exhaust refitting
- Corrosion or distortion of the washer
- Loose or uneven exhaust joint compression
- Exhaust fumes around the rear of the vehicle
Why Replacement Matters
A worn or damaged sealing washer can compromise the exhaust joint, leading to leaks, vibration and premature wear of surrounding exhaust parts.
Replacement helps:
- Restore correct exhaust sealing
- Prevent exhaust gas leaks
- Improve exhaust system reliability
- Reduce unwanted noise and vibration
- Maintain proper exhaust flow
- Protect connected exhaust components
- Improve repair and restoration quality
- Support long-term durability
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91111118802
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)
Exhaust Mounting Brackets, Straps & Clamps – Secure, Silent & Strong
A Porsche exhaust system relies on more than just pipes and silencers — it’s held together by a network of mounting brackets, straps, and clamps that keep everything securely in place. These essential components absorb vibration, maintain correct alignment, and prevent stress or damage to exhaust pipes and mufflers.
At Design911, we stock a full range of exhaust mounting hardware, including brackets, hangers, straps, clamps, gaskets, and fasteners, all designed for long-lasting durability and a perfect fit. Built from high-strength stainless steel and corrosion-resistant materials, these components ensure your exhaust system remains properly supported and free from unwanted noise or movement.
Whether you’re performing a full exhaust replacement or a minor repair, replacing worn or rusted mounting hardware restores proper fitment and protects your Porsche’s exhaust from damage caused by vibration or misalignment.
What Do Exhaust Mounting Brackets, Straps & Clamps Do?
These small but vital parts provide the backbone for your exhaust system’s stability and integrity.
Core Functions:
- Secure
the exhaust system to the vehicle chassis.
- Maintain
correct alignment to prevent strain on joints and flanges.
- Absorb
engine vibration to reduce stress and cracking.
- Ensure
leak-free connections between pipes and silencers.
- Prevent rattling and unwanted noise during acceleration and cornering.
Without properly functioning brackets and clamps, your exhaust can sag, vibrate, or even detach — risking costly damage and performance loss.
Why Do Exhaust Mounts and Clamps Fail?
Constant heat, vibration, and exposure to the elements make exhaust mounting components prone to wear over time.
Common Causes of Failure Include:
- Corrosion
or rust from road salt and moisture.
- Metal
fatigue caused by heat cycling and vibration.
- Cracked
or stretched straps from repeated stress.
- Loose
or broken clamps leading to exhaust leaks.
- Rubber mount deterioration resulting in noise or exhaust movement.
Failure of these components can lead to exhaust misalignment, rattling, leaks, or premature pipe damage — issues that worsen quickly if ignored.
Why Replace Components?
Replacing worn or damaged exhaust mounting hardware ensures your Porsche’s exhaust system remains stable, quiet, and free-flowing.
Key Benefits:
- Restores exhaust alignment and fitment.
- Prevents damage to mufflers, pipes, and joints.
- Eliminates rattling, vibration, and leaks.
- Durable stainless steel and heat-resistant construction.
- Direct-fit
compatibility for all Porsche models, classic and modern.
- Ideal for maintenance, restoration, or performance upgrades.
A secure exhaust system not only improves comfort and performance but also extends the life of other components — ensuring your Porsche remains refined and reliable.
Highlights:
- High-quality exhaust brackets, clamps, and mounting straps.
- Precision-engineered for Porsche fitment and durability.
- Prevents vibration, movement, and exhaust leaks.
- Made from corrosion-resistant stainless steel.
- Perfect for restorations or exhaust maintenance.
- Ensures long-term stability and quiet operation.