NOS Astroroof Housing Seal / Weatherstrip – GM Part #20063026
This genuine GM NOS rubber weatherstrip is designed for the roof-mounted housing of the CA1/CF5 Astroroof system. Two seals were originally used in GM’s factory sunroof setup—one around the glass panel and one on the roof-mounted housing. This listing is for the housing-mounted seal, still sealed in its original GM box and in excellent condition.
Ideal for factory-correct restorations where authenticity and proper fitment matter. This part is no longer available through GM and is exceptionally hard to find in NOS condition.
Fitment Compatibility
1978–1990 GM vehicles equipped with the CA1/CF5 Astroroof option, including:
Cadillac
Chevrolet
Buick
Oldsmobile
Pontiac
Actual usage varied by model and year—most commonly found on 1978–1990 applications. Please verify fitment before purchase.
Important Notes
Genuine GM part for original restorations
Housing-mounted seal only (not the glass panel seal)
NOS condition, unused, in original GM packaging
No returns—confirm compatibility before purchasing
Tags:
GM Astroroof Seal NOS
CA1 CF5 Sunroof Weatherstrip
GM Part #20063026
Vintage GM Sunroof Seal
GM Roof-Mounted Weatherstrip
Cadillac Buick Oldsmobile Pontiac Chevrolet Astroroof
1978–1990 GM Sunroof Parts
NOS GM Astroroof Housing Gasket
OEM GM Astroroof Seal
GM Factory Sunroof Restoration