Rear 1/4 panel to body seal. Porsche 911 1977>>  ❭  91150318

Rear Quarter Panel to Body Seal
An OE Match rear quarter panel to body seal designed to create a protective and sealing interface between the rear quarter panel and the vehicle body on Porsche 911 models from 1977 onwards.
Sold As: Individual side-specific pieces

Fits:
Porsche 911 1977 - 1989

Diagram Ref no 11

These OE Match 91150318501 (Left) and 91150318601 (Right) Rear Quarter Panel to Body Seals are high-quality replacement components engineered to match original Porsche specifications for fit, finish, and durability. Installed between the rear quarter panel and the body structure, these seals provide a clean and functional barrier that protects the joint from environmental exposure.

In addition to their protective role, these seals also contribute to the overall appearance of the vehicle by providing a neat, factory-correct finish along the panel edge. Supplied individually and side-specific, they allow precise replacement of either the left or right side as required - making them ideal for restoration, bodywork repairs, or general refurbishment.

These seals close the gap between the rear quarter panel and the body, preventing ingress of water and debris while improving panel fitment and appearance.

Function
• Seals the joint between rear quarter panel and body
• Prevents water, dirt, and debris ingress
• Helps reduce risk of corrosion in panel gaps
• Maintains clean, factory-style panel finish
• Supports proper panel alignment and fitment

Over time, these seals can harden, shrink, or deteriorate due to exposure to weather and age. This can allow moisture and debris to accumulate in panel gaps, increasing the risk of corrosion and negatively affecting the vehicle’s appearance.

Replacing worn seals helps protect the bodywork, maintain proper panel fitment, and restore a clean, original look.

When to replace
•  Visible cracking, shrinkage, or deterioration
•  Signs of moisture or debris buildup in panel gaps
•  During bodywork, repainting, or restoration
•  Panels appear misaligned or gaps uneven
•  Seals are missing or no longer effective

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

91150318

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