Buick GS 400 Weatherstrip & Seals - OEM-Fit Door, Trunk & Window Seals
Stop leaks, drafts, and road noise in your Buick GS 400 with precision-fit replacement weatherstrip and seals designed specifically for your vehicle. Each seal is engineered to match the original profile and mounting groove of your Buick GS 400—restoring a tight, quiet seal around your doors, trunk, hatch, and windows.
Our Buick GS 400 weatherstrip is manufactured from durable, weather-resistant rubber compounds such as EPDM, engineered for an exact OEM-quality fit and finish. These materials resist sunlight, ozone, and chemical exposure while maintaining flexibility across temperature extremes, so your new seals stay soft and pliable instead of cracking or hardening the way factory-original rubber does over time.
Use the Vehicle Selector above to find the correct weatherstrip for your Buick GS 400, or browse below to explore available options. Whether you’re chasing down a stubborn water leak or completing a full restoration, Factory Interiors makes it easy to achieve a tight, factory-quality seal with precision-fit weatherstrip for your Buick GS 400.
This dash and firewall grommet is designed for cars and trucks, including the 1965-1969 Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac models listed in the fitment details. Measuring precisely to fit snugly, this two-hole grommet is crafted from advanced rubber compounds that resist chemicals, sunlight, and ozone, ensuring long-lasting durability. Its sleek black finish and robust construction make it a reliable solution for sealing and protecting wiring or hoses passing through the dash or firewall. Installation is straightforward, as the grommet is designed to fit securely into the designated openings, providing a tight seal to prevent leaks and debris from entering. Backed by Metro’s 30-year warranty, this part guarantees peace of mind for decades.
Features and Benefits- Protects wiring and hoses from wear and damage.
- Resists harsh environmental factors like sunlight and ozone.
- Ensures a tight, secure seal to prevent leaks.
- Easy to install for a perfect fit.
This seat bumper, designed for 1966-1972 Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac cars, measures 1-1/2" long and 7/16" thick, ensuring a precise fit for your classic vehicle. Made with a durable steel core like the original, it provides long-lasting strength and reliability. Two bumpers are used per car, and installation is straightforward, making it easy to restore your seat's proper alignment and functionality. Crafted to meet the high standards of Metro Moulded Parts, this bumper is built to endure wear and tear while maintaining its performance. Backed by a 30-year warranty, you can trust its quality and durability for decades to come.
Features and Benefits- Restores proper seat alignment for a smooth ride.
- Durable steel core ensures long-lasting strength.
- Easy installation saves time and effort.
This ashtray bumper, measuring 5/16" wide x 1/2" long x 3/16" high, is designed for 1968-1969 Buick, Cadillac, Chevrolet, Ford, Oldsmobile, and Pontiac cars, as well as select Chevrolet and Ford trucks. Crafted for durability and strength, this small yet essential component ensures a snug and secure fit for your ashtray, preventing rattling and wear over time. Its compact black rubber design is built to last and offers easy installation, making it a practical replacement for worn or missing bumpers. This Metro Moulded Parts product is backed by a 30-year warranty, giving you confidence in its long-term performance.
Features and Benefits- Prevents ashtray rattling for a quieter ride.
- Durable rubber construction resists wear and tear.
- Easy to install for hassle-free replacement.
This fuel door bumper, measuring 7/8" high with a 5/16" outer diameter, is designed for cars such as the 1965-1972 Buick Electra, Cadillac DeVille, Chevrolet Impala, Oldsmobile Cutlass, Pontiac GTO, and many more classic models, ensuring a precise fit for your vintage vehicle. Crafted by Metro Moulded Parts, this durable and long-lasting bumper is built to withstand wear and tear, providing reliable cushioning and protection for your fuel door. Its sleek black finish complements the vehicle's design while maintaining functionality. Installation is straightforward, making it an easy replacement for worn or missing bumpers. Backed by Metro's 30-year warranty, this part guarantees peace of mind and long-term performance.
Features and Benefits- Protects the fuel door from damage with a secure cushion.
- Easy to install for a hassle-free replacement.
- Durable material ensures long-lasting performance.
This license plate bumper, designed for cars and trucks, fits a 1/4" hole and is compatible with a wide range of 1964-1969 Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac models, including the 1964 Buick Electra, 1965 Chevrolet Impala, and 1968 Pontiac GTO. Crafted for durability and long-lasting performance, this bumper is made to withstand wear and tear while securely holding your license plate in place. Its compact, rounded design ensures a snug fit, and the high-quality material resists cracking or breaking over time. Installation is straightforward—simply insert it into the designated hole for a secure and reliable fit. Backed by Metro Moulded Parts' Platinum Warranty, this bumper offers peace of mind with 30 years of coverage.
Features and Benefits- Fits a 1/4" hole for easy compatibility.
- Durable construction ensures long-lasting use.
- Simple installation saves time and effort.
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