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Bonnet / Boot Seals
This gasket fits around the rear hatch opening and provides a tight seal when the hatch is closed, helping keep water, dust, and exhaust fumes out of the rear compartment and protecting the interior and cargo space.
Fits:
Porsche 928 1978 - 1986
Diagram ref no 6
• Location: Rear hatch / tailgate perimeter - one seal per vehicle
• Usage Cases: Hatch restoration, leak repair, water ingress prevention, full restoration, or replacement of cracked/old seals
It’s ideal for restoring a 928 with a deteriorated, hardened, or missing hatch seal - ensuring the rear compartment remains properly sealed against the elements and road contamination.
Over time, the original rear hatch seal can become brittle, compressed, torn, or lose elasticity - often resulting in:
• Water leaks into the rear compartment or boot area
• Dust, exhaust fumes or road spray entering the cabin
• Increased cabin noise and reduced comfort
• Corrosion, mildew, or damage to interior panels and wiring
Replacing with a correctly formed seal restores proper weatherproofing, preserves interior condition, and ensures the hatch closes securely and cleanly - essential for longevity, comfort and preserving vehicle value.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92851212905
The product you are viewing cross references to these numbers
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
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12 Month Warranty
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Fits:
Porsche 928 1978-86
Click 'Zoom in' for large parts diagram.
Diagram ref no 6
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92851212905
The product you are viewing cross references to these numbers
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
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12 Month Warranty
Worldwide Delivery
Fits:
Porsche 928 S4 (1989 - 1991)
Porsche 928 GTS (1992 - 1995)
Click 'Zoom in' for large parts diagram.
Diagram ref no 6
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92851212904
The product you are viewing cross references to these numbers
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
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12 Month Warranty
Worldwide Delivery
.jpg?width=197&height=148&format=webp "Rubber Seal Battery Box. Porsche 928 - 92850410502 - PDBAT")
Battery Box Rubber Seal
High-quality replacement rubber seal for the battery box, designed specifically for Porsche 928 models.
This seal provides a secure barrier around the battery
compartment, helping to prevent moisture, dirt, and debris from entering the
battery area. It plays a key role in protecting electrical components and
maintaining the integrity of the engine bay.
Fits:
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Diagram ref no 31
Manufactured to OEM specifications, this rubber gasket ensures precise fitment and long-lasting durability—ideal for maintenance, repair, or restoration work.
Key Features
• Direct replacement battery box rubber seal
• Suitable for Porsche 928 models
• Provides effective sealing of battery compartment
• OEM-style fit and performance
• Durable rubber construction for long-term use
• Ideal for maintenance and restoration
Function and Purpose
This seal protects the battery box area.
It helps to:
• Prevent moisture ingress into the battery compartment
• Protect electrical components from corrosion
• Maintain cleanliness within the engine bay
• Support long-term reliability of electrical systems
Why Replace Your Battery Box Seal
Over time, rubber seals can deteriorate due to heat, age, and exposure.
Common issues include:
• Cracked or hardened rubber
• Poor sealing allowing water ingress
• Increased risk of corrosion
• Degraded engine bay appearance
Replacing the seal restores protection and improves overall condition.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92850410502
The product you are viewing cross references to these numbers
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
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12 Month Warranty
Worldwide Delivery
Perfect for sealing weatherstripping to door, hood, and trunk panels.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
00004330532
The product you are viewing cross references to these numbers
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12 Month Warranty
Worldwide Delivery
Porsche Bonnet & Boot Seals | Design911 Rubber Weather Seals for Body Protection & Longevity
Bonnet and boot seals are vital to preserving the integrity, comfort, and appearance of your Porsche. These precision-fitted rubber seals prevent water, dust, and wind from entering the luggage compartments, ensuring a clean, quiet, and protected environment. In both classic and modern Porsche models, maintaining proper sealing is essential for preventing corrosion, electrical damage, and interior deterioration.
At Design911, we supply a comprehensive range of bonnet and boot rubber seals, designed for an exact fit and long-lasting performance. Manufactured from premium-grade weather-resistant materials, our seals deliver exceptional flexibility, compression recovery, and durability. Whether for restoration, maintenance, or performance detailing, Design911’s sealing components provide professional-grade protection and finish for every Porsche.
What Do Bonnet & Boot Seals Do?
Bonnet and boot seals create a tight barrier between the body panels and the luggage compartments, shielding your Porsche’s structure and interior from external elements.
Core Functions:
• Prevent water, dirt, and air leaks into front and rear compartments.
• Reduce noise, vibration, and harshness (NVH) during driving.
• Protect paintwork and body edges from friction damage.
• Assist with proper panel alignment and secure closure.
• Maintain optimal pressure sealing for climate protection.
High-quality rubber seals are essential for keeping your Porsche dry, quiet, and free from unwanted wear — enhancing both comfort and longevity.
Why Do Bonnet & Boot Seals Fail or Degrade?
Rubber components naturally deteriorate over time due to environmental exposure, pressure cycles, and age-related hardening.
Common Causes of Failure Include:
• UV and ozone damage causing cracking and brittleness.
• Compression set from repeated opening and closing of panels.
• Contamination by oil, fuel, or cleaning chemicals.
• Deformation or tearing from misaligned panels or closures.
• Age-related loss of elasticity reducing sealing effectiveness.
Once seals begin to fail, moisture and dust can infiltrate compartments, leading to corrosion, noise, and costly repairs — making timely replacement crucial.
Why Replace or Upgrade Your Porsche Bonnet & Boot Seals?
Replacing your Porsche’s bonnet or boot seals restores the original comfort, protection, and aesthetic integrity of your car. Upgraded rubber compounds offer improved sealing and longevity over standard materials.
Key Benefits:
• Restores water- and air-tight sealing for front and rear compartments.
• Prevents corrosion, leaks, and unpleasant cabin odours.
• Reduces wind noise and vibration for a smoother drive.
• Precision-engineered for Porsche 911, Cayman, Boxster, Panamera, and 944
models.
• Constructed from high-quality EPDM or neoprene rubber for maximum resilience.
• Ideal for restoration, maintenance, and detailing applications.
Design911’s Porsche bonnet and boot rubber seals deliver the perfect balance of flexibility, compression strength, and durability — ensuring a secure seal that lasts for years.
Highlights
• Premium Porsche bonnet and boot compartment seals.
• Engineered for exact fitment and long-term elasticity.
• Resistant to UV, ozone, and temperature extremes.
• Improves noise isolation and weatherproofing.
• Suitable for both classic and modern Porsche models.
• Perfect for restorations, replacements, or detailing upgrades.
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