Rear quarter panel to bumper & body seal, 38" Long. Porsche 911 RSR / ST wide body › 90150509

This OE Match rear quarter-panel seal joins the bumper and adjoining bodywork on Porsche 911 RSR / ST wide-body conversions and backdates. The supplied length is 38 inches.

Fits

Porsche 911 Converted to wide body RSR / ST
or back dated to wide body RSR / ST look

The following donor applications require the RSR / ST wide-body configuration described above:

• 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
• 911 1974-1977 2.7L / 1976-77 3.0 Carrera
• 911 1975-1977 3.0L Turbo (930)
• 911 1978-1989 3.3L Turbo (930)
• 911 1984-1986 3.2L
• 911 1987-1989 3.2L G50
• 911 1978-1983 3.0L / SC

Check fitment for your specific vehicle (model, year, engine) before ordering. For converted vehicles, also compare the fitted bumper, bodywork and seal profile.

Diagram Ref No 25

What This Product Does

The seal occupies the joint where the rear quarter panel meets the bumper and body. It helps finish this junction while limiting the collection of moisture and road dirt between adjoining surfaces.

Functions

• Forms a sealing interface at the rear body joint.
• Helps separate adjoining painted edges.
• Completes the visible transition between bumper and quarter panel.

Technical Details

• Position: rear quarter panel, bumper and body junction.
• Length: 38 inches.
• Intended configuration: RSR / ST wide-body conversion or backdate.
• 90150509320: left-hand reference; diagram items 36 and 26.
• 90150509420: right-hand reference; diagram items 38 and 28.

Symptoms of Fault

• Seal material that has split, hardened or pulled away.
• Flattened sections or missing lengths at the joint.
• Accumulated grit and dampness behind the bumper.
• Paint abrasion where adjoining edges touch.
• Rattling that warrants inspection of both the seal and bumper fixings.

Why Replacement Matters

Renewing a deteriorated seal helps restore the joint's finish and reduces places where dirt can collect. During restoration or bumper removal, inspect the adjoining surfaces for corrosion and check the mounting hardware before fitting the replacement.

FAQs

Will this fit an unchanged standard-body 911?
The stated application is a wide-body RSR / ST conversion or backdate; donor model details alone do not establish suitability.

Will replacing the seal eliminate every bumper rattle?
No. Loose fixings, worn mounts or contact elsewhere may also need attention.

What preparation is recommended?
Remove trapped dirt, inspect the joint for corrosion and compare the replacement profile with the existing installation before fitting.

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

90150509

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