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Engine Compartment Seals
- 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)
Fits:
Porsche 911 / 912 - 1965 to 1989
Diagram ref no 26
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90155689120
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)

Fits:
Porsche 911 1965-89
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91155689101
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
This pad is installed in the engine bay to dampen noise, reduce heat transfer, and help maintain a quieter cabin. It’s made to match the original shape for a direct fit, offering effective sound insulation and thermal protection.
Fits:
Porsche 911 / 912 1965 - 1989
Diagram ref no 26
Location: In the engine bay, frequently mounted on the firewall or underside of the engine cover, replacing old or deteriorated insulation material
What this product does:
• Acts as a sound-dampening layer in the engine compartment
• Reduces engine noise entering the cabin
• Helps buffer heat, protecting nearby components and minimizing radiant heat transfer
With age, engine sound insulation pads can sag, crack, or break down, reducing their effectiveness at blocking noise and controlling heat. When this happens, more engine noise enters the cabin and heat may affect nearby components. Replacing the pad restores quiet cabin comfort and proper thermal protection in the engine bay.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91155689101
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
The OE Match Engine Bay Sound Proofing Damping Mat is a premium-quality replacement insulation panel designed to reduce engine noise and restore the original appearance of the engine compartment on compatible Porsche models. Manufactured to OE specifications for fit, thickness and durability, this sound proofing mat helps absorb engine noise and vibration while providing a factory-style finish to the engine bay.
Fits:
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
Manufactured from high-quality heat-resistant acoustic insulation material, the damping mat is engineered to withstand elevated engine bay temperatures, moisture, oil vapours and continual thermal cycling. Precision-cut to match the original contours and mounting locations, it provides direct OE-style fitment and is ideal for replacing deteriorated, oil-soaked or damaged original insulation during restoration, refurbishment or routine maintenance.
What This Product Does:
- Reduces engine noise transmitted into the cabin.
- Dampens engine vibration and sound resonance.
- Restores the original appearance of the engine bay.
- Provides thermal and acoustic insulation.
- Helps protect surrounding panels from engine heat.
- Improves overall cabin comfort and refinement.
- Provides factory-style fitment and finish.
- Forms an essential part of the engine compartment insulation system.
Symptoms Of Wear Or Failure:
- Increased engine noise inside the cabin.
- Sagging or detached insulation.
- Cracked, brittle or deteriorated insulation material.
- Oil contamination or staining.
- Heat damage or discolouration.
- Missing sections of insulation.
- Loose material within the engine bay.
- Poor engine compartment appearance.
- Reduced sound insulation effectiveness.
- Age-related deterioration due to heat and moisture exposure.
Why Replacement Matters:
- The engine bay sound proofing mat is continually exposed to high temperatures, engine vibration, moisture and oil vapours. Over time, the insulation material can harden, crumble, become oil-soaked or separate from its backing, significantly reducing its ability to absorb engine noise and withstand engine bay conditions.
- A deteriorated sound proofing mat can increase engine noise within the cabin, reduce driving refinement and detract from the appearance of the engine compartment. Loose or damaged insulation may also interfere with surrounding components if left unattended.
- Replacing a worn or damaged sound proofing mat restores the original acoustic insulation and factory appearance of the engine bay. The OE Match Engine Bay Sound Proofing Damping Mat is manufactured to OE standards using premium heat-resistant materials, providing precise fitment, excellent noise reduction and long-lasting durability, making it the ideal choice for Porsche restoration, servicing and preventative maintenance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93055689102
The product you are viewing cross references to these numbers
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
Fits:
Porsche 911 (930) Turbo 1975-89
Porsche 964 1989-94
Click 'Zoom in' for large parts diagram.
Diagram Ref: 5
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91150411502
The product you are viewing cross references to these numbers
- 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 (930) Turbo 1975-89
Porsche 964 1989-94
Click 'Zoom in' for large parts diagram.
Diagram Ref: 5
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91150411502
The product you are viewing cross references to these numbers
- 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 1965-73
Diagram Ref: 8
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91150411500
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)
Fits:
Porsche 911 1965-73
Diagram Ref: 8
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91150411500
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)

Fits:
Porsche 911 1974-89
Click 'Zoom in' for large parts diagram.
Diagram ref no 8
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91150411302
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
This seal is designed to fit the front of the engine compartment on the Porsche 911 G-series (1974-1989). Built to original Porsche specification for perfect fit and material properties Helps to prevent unwanted contaminants from entering the engine bay and protect wiring, hoses and grommets.
Fits:
Porsche 911 1974 - 1989
Diagram ref no 8
Over time, the engine compartment seal can harden, crack, or lose elasticity due to heat, oil exposure, and age. A worn or damaged seal allows water, dust, and engine heat to escape or enter where it shouldn’t - leading to corrosion, dirty engine bays, and reduced cooling efficiency.
When to Replace:
• If you notice cracks, flattening, or brittleness in the seal material.
• When there’s excessive engine bay noise, heat leakage, or water ingress after washing or rain.
• During engine removal or restoration work, as part of preventative maintenance on classic Porsche models.
Replacing with a fresh engine compartment seal restores proper insulation, keeps contaminants out, and helps maintain the performance and longevity of your air-cooled Porsche.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91150411302
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 1965-89
Diagram ref no 7
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91150411102
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
Fits:
Porsche 911 1965-89
Diagram Ref: 7
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91150411102
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
Fits:
Porsche 930 1975-89
Porsche 964 1989-94
Diagram Ref no 6
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93050417001
The product you are viewing cross references to these numbers
- 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 OE MATCH Engine Compartment Seal, Rear is a high-quality replacement rubber seal designed to fit around the rear section of the engine compartment on classic Porsche models. This seal creates a protective barrier between the engine bay and the surrounding bodywork, helping to prevent the ingress of water, dirt, dust, and hot air while ensuring correct airflow management through the engine compartment.
Fits:
- 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 6
Manufactured to OE specifications from durable automotive-grade rubber, the seal is designed to withstand high temperatures, vibration, moisture, and environmental exposure. It is an essential component for restoration projects or replacing worn, hardened, or damaged original seals to maintain engine cooling efficiency and engine bay protection.
What This Product Does:
- Seals the rear perimeter of the engine compartment
- Helps prevent dirt, water, and debris from entering the engine bay
- Supports correct engine cooling airflow management
- Separates hot exhaust air from the engine intake area
- Helps maintain efficient engine operating temperatures
- Provides a factory-correct fit and appearance
Symptoms Of Wear Or Failure:
- Cracked, split, or perished rubber material
- Hardened, shrunken, or distorted seal profile
- Visible gaps around the engine compartment perimeter
- Excessive dirt, dust, or moisture entering the engine bay
- Reduced effectiveness of engine cooling airflow
- Hot air recirculation within the engine compartment
- Loose or detached sections of seal
- Deteriorated engine bay appearance
Why Replacement Matters:
- Restores proper engine compartment sealing
- Helps maintain correct cooling airflow through the engine bay
- Prevents hot air recirculation that can affect engine temperatures
- Protects engine components from dirt, moisture, and debris
- Supports reliable engine performance and longevity
- Maintains factory-correct fitment and appearance
- Enhances the quality of restoration and refurbishment projects
- Provides durable OE-quality performance and long-term reliability
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93050417001
The product you are viewing cross references to these numbers
- 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 1965-73
Diagram Ref: 28
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90151290100
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)
Fits:
Porsche 911 1965-73
Diagram Ref: 28
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90151290100
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)
-
frame rear 911 1978-83 801-15
-
body sound proofing - 1 - 911 1978-83 807-15
-
frame rear 911 1987-89 801-15
-
Frame centre rear 911 1970-73 801-15
-
Body insulation 911 1970-73 807-50
-
Frame rear 911 1984-86 801-15
-
body sound proofing - 1 - 911 1987-89 807-15
-
body sound proofing - 1 - 911 1984-86 807-15
-
bumper rear 911 1970-73 802-05
-
Frame rear 911 1974-77 801-15
-
body sound proofing - 1 - 911 1974-77 807-20
-
frame centre rear 911 1965-69 801-15
-
Bumper Rear 911 UPTO 1968 802-10
-
Bumper Rear 911 1969 ONWARDS 802-15
-
body insulation 911 1965-69 807-50
-
frame rear 911 TURBO 1975-77 801-15
-
body sound proofing - 1 - 911 TURBO 1975-77 807-20
Porsche Engine Compartment Seals | Design911 Rubber Seals for Cooling, Protection & Performance
Engine compartment seals are a vital component in maintaining your Porsche’s performance, cooling efficiency, and longevity. These precision-moulded rubber seals create a secure barrier between the engine bay and body panels, keeping out dust, debris, heat, and water while directing airflow correctly through the cooling system. A properly sealed engine bay not only protects critical components but also preserves optimal temperature balance for reliable performance.
At Design911, we supply a premium range of engine compartment rubber seals engineered for exact fitment, durability, and long-lasting elasticity. Crafted from high-temperature EPDM or neoprene rubber, each seal is designed to resist heat, oil, and environmental damage. Whether you’re restoring a classic air-cooled 911, maintaining a Cayman, or upgrading your 718 for performance, our engine compartment seals deliver professional-grade protection and performance.
What Do Engine Compartment Seals Do?
Engine compartment seals are designed to create a controlled environment around the engine, ensuring efficient airflow and protection against contaminants.
Core Functions:
• Prevent dirt, dust, and water from entering the engine bay.
• Direct cooling airflow efficiently to the engine and exhaust system.
• Reduce heat transfer to surrounding body panels and interiors.
• Protect wiring, hoses, and sensors from debris and moisture.
• Minimise vibration and maintain structural sealing integrity.
A well-fitted engine compartment seal helps maintain Porsche’s engineering precision — keeping performance consistent under all driving conditions.
Why Do Engine Compartment Seals Fail or Degrade?
Due to constant exposure to heat, oil vapour, and environmental elements, engine seals gradually lose flexibility and sealing effectiveness over time.
Common Causes of Failure Include:
• High heat causing hardening, cracking, or shrinking of rubber.
• Exposure to oil, fuel, and engine chemicals degrading the material.
• Compression fatigue from vibration and pressure changes.
• Age-related deterioration reducing elasticity and sealing contact.
• Incorrect installation or body panel misalignment.
When these seals fail, the engine compartment becomes exposed to moisture, dust, and heat fluctuations — leading to corrosion, overheating, and reduced efficiency.
Why Replace or Upgrade Your Porsche Engine Compartment Seal?
Replacing worn or damaged seals restores the original airflow control and protective sealing that Porsche performance depends on. High-quality replacement materials offer improved resilience against modern fuels, heat, and oil exposure.
Key Benefits:
• Restores proper airflow and cooling efficiency.
• Prevents corrosion, heat damage, and contamination.
• Improves engine bay cleanliness and protection.
• Constructed from high-grade heat- and oil-resistant rubber.
• Available for Porsche 911, 944, 968, Cayman, Boxster, and 718 models.
• Ideal for restorations, engine rebuilds, and performance upgrades.
Design911’s Porsche engine compartment seals ensure your car’s engine remains clean, cool, and protected — preserving both reliability and performance longevity.
Highlights
• Premium Porsche engine compartment and cooling bay rubber
seals.
• Heat-, oil-, and weather-resistant construction.
• Improves airflow and prevents contamination.
• Precision-fit for both classic and modern Porsche models.
• Essential for restorations, rebuilds, or maintenance projects.
• Engineered for long-term performance and durability.