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Porsche // 964 (911) (1989-1994) // 964 (911) C2 1989-93
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Brackets / Clamps / Straps
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
The OE Match Exhaust O-Ring & Clamp Kit is a complete hardware set designed to replace worn or deteriorated exhaust tail pipe O-rings and clamps on classic Porsche 964 models. These components help seal and secure the connection between the exhaust tail pipe and adjacent exhaust sections, ensuring a leak-free fit and proper exhaust alignment.
SET OF 2
Fits:
Porsche 964 C2 / C4 1989 - 1994
Diagram ref no 6 and 7
This OE Match exhaust hardware kit includes precisely sized O-rings, clamps, nuts, and bolts manufactured to meet OE-equivalent shape, dimensions, and material standards. Tail pipe O-rings provide a firm, resilient seal between slip-fit sections of the exhaust system, preventing exhaust gas leaks, vibration noise, and premature wear of mating surfaces. The clamps and fasteners are engineered to offer secure retention and long-term resistance to heat, vibration, and corrosion - common stressors in the exhaust environment.
Designed for classic air-cooled Porsche 911 models, this kit restores correct sealing and secure fitment of the tail pipe section - a crucial part of the exhaust path that influences sound, emissions, and engine performance.
Whether you’re performing routine exhaust maintenance, replacing worn hardware, or reinstalling components after service, this OE Match kit provides all the essential parts needed for a proper, direct-fit installation.
Over time, exhaust O-rings and clamps can become brittle, cracked, or corroded due to repeated heat cycles and exposure to the elements. Damaged seals or weak clamps can lead to exhaust leaks, increased noise, vibration, heat transfer to nearby components, and inefficient engine breathing. Replacing them with an OE Match kit restores proper sealing and secure mounting, helping maintain exhaust performance and engine efficiency.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
EXHFITTING964.1
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
The OE Match Exhaust O-Ring & Clamp Kit is a complete hardware set designed to replace worn or deteriorated exhaust tail pipe O-rings and clamps on classic Porsche 964 models. These components help seal and secure the connection between the exhaust tail pipe and adjacent exhaust sections, ensuring a leak-free fit and proper exhaust alignment.
SET OF 6
Fits:
Porsche 964 C2 / C4 1989 - 1994
Diagram ref no 6 and 7
This OE Match exhaust hardware kit includes precisely sized O-rings, clamps, nuts, and bolts manufactured to meet OE-equivalent shape, dimensions, and material standards. Tail pipe O-rings provide a firm, resilient seal between slip-fit sections of the exhaust system, preventing exhaust gas leaks, vibration noise, and premature wear of mating surfaces. The clamps and fasteners are engineered to offer secure retention and long-term resistance to heat, vibration, and corrosion - common stressors in the exhaust environment.
Designed for classic air-cooled Porsche 911 models, this kit restores correct sealing and secure fitment of the tail pipe section - a crucial part of the exhaust path that influences sound, emissions, and engine performance.
Whether you’re performing routine exhaust maintenance, replacing worn hardware, or reinstalling components after service, this OE Match kit provides all the essential parts needed for a proper, direct-fit installation.
Over time, exhaust O-rings and clamps can become brittle, cracked, or corroded due to repeated heat cycles and exposure to the elements. Damaged seals or weak clamps can lead to exhaust leaks, increased noise, vibration, heat transfer to nearby components, and inefficient engine breathing. Replacing them with an OE Match kit restores proper sealing and secure mounting, helping maintain exhaust performance and engine efficiency.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
EXHFITTING964.3
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
Fits:
Porsche 964 C2/4 1989-94 (Not turbo)
Click 'Zoom in' for large parts diagram.
Diagram Ref No 3
Old part number:
- 90007507802
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90007507803
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
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 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 964 C2 / C4 / RS 1990-94
Porsche 964 (965) Turbo 1991-93
Click 'Zoom in' for large parts diagram.
Diagram ref no 8.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90007433902
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
Replacement heat shield for Cat.
Fits:
Porsche 964 C2/4 1989-94 (Not turbo)
Diagram Ref No 23
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96421121404
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
- Porsche 968 3.0L 1992-94
- Porsche 968 Sport 3.0L 1994-95
- Porsche 968 CS 3.0L 1993-95
- Porsche 968 Turbo S 3.0L 1993-94
Replacement clamp, fits between silencer & tail pipe.
Fits:
Porsche 964 C2 / C4 1989-94
Porsche 965 Turbo
Click 'Zoom in' for large parts diagram.
Diagram ref no. 7
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96411133600
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) TURBO 3.6L 1991-93
- Porsche 968 3.0L 1992-94
- Porsche 968 Sport 3.0L 1994-95
- Porsche 968 CS 3.0L 1993-95
- Porsche 968 Turbo S 3.0L 1993-94
Replacement clamp, fits between silencer & tail pipe.
Sold each
Fits:
Porsche 964 3.6L 12/1988 - 06/1994
Diagram ref no. 7
• Designed for tailpipe-to-muffler joint connection
• Restores secure, leak-free exhaust fitment
• Matches OEM dimensions for easy installation and correct alignment
• Prevents exhaust movement, leaks, and rattles
• Direct-fit replacement—no modification required
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96411133600
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
Replacement protective plate for rear box.
Fits:
Porsche 964 C2/4 1989-94 (Not turbo)
Diagram Ref No 25
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96421121905
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
Replacement protective plate for rear box.
Fits:
Porsche 964 C2/4 1989-94 (Not turbo)
Click 'Zoom in' for large parts diagram.
Diagram Ref No 24
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96421121705
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
Fits:
Porsche 964 C2/4 1989-94 (Not turbo)
Diagram Ref No 11
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96411111902
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
Fits:
Porsche 964 C2/4 1989-94 (Not turbo)
Diagram Ref No 11
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96411111902
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main folding top bow roof frame single parts 964 CABRIO 1989-94 811-12
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battery, starter, generator 964 1989-94 902-05
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horn 964 1989-94 903-00
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additional blower 964 TURBO M30.69 and M64.50 1991-94 108-15
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exhaust system: muffler, catalytic converter 964 M64.01/02/03 1989-94 202-00
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exhaust system 964 TURBO M30.69 and M64.50 1991-94 202-15
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.