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.
For classic car enthusiasts, these clutch and brake pedal pads are designed for 1964-1969 Pontiac, Buick, and Oldsmobile cars, measuring 3-1/2" wide for a precise fit. Crafted as exact reproductions, they feature the correct curves and intricate details to match the original look, ensuring your vehicle maintains its authentic style. These pads are made to easily slip onto the pedals, providing a secure and snug fit while enhancing grip and comfort during use. Whether you're restoring a 1964 Pontiac GTO, a 1965 Buick Riviera, or a 1969 Oldsmobile Cutlass, these pedal pads are a perfect match for your classic car. Backed by Metro Moulded Parts' 30-year warranty, you can trust in their durability and long-lasting performance.
Features and Benefits
Designed for hardtop vehicles, these roof rail seals measure 1-1/16" wide and 6' long, providing a perfect fit for your car. Sold as a pair, these seals are crafted by SUPERsoft to deliver unmatched durability and performance. Unlike competitor brands, these seals are made without accelerants or cheap fillers, ensuring they won’t prematurely age or fail. Their design guarantees a tight, leak-free seal, keeping your vehicle protected from water and weather damage. Easy to install, these seals fit snugly along the roof rails, enhancing the overall look and functionality of your hardtop. Backed by a 30-year warranty, SUPERsoft ensures long-lasting confidence in your purchase.
Features and Benefits
For 2-door coupe, hardtop, and convertible GM A-body models from 1968 to 1972 (excluding Pontiac), this pair of door lock pillar seals is a re-issue designed to replace OEM# 7790754/5. Crafted with corrosion-resistant stainless steel cores, these seals ensure long-lasting durability and protection against rust. Their concours-quality details make them a perfect fit for restoring classic cars like the Buick GS, Skylark, and Special, Chevrolet Chevelle and Monte Carlo, and Oldsmobile 442, Cutlass, and F85. Easy to install, these seals are designed to fit snugly at the door lock pillar, preventing water, dirt, and debris from entering the vehicle while maintaining a clean and polished look. Backed by Metro’s Platinum 30-year warranty, you can trust in their quality and performance for decades to come.
Features and Benefits
For convertible cars, these Convertible Top Compartment Side Panel Seals are designed to fit perfectly and provide a snug, weatherproof seal. Crafted with concours-quality details, they ensure a precise fit and a clean, professional look. These seals are easy to install, making them a hassle-free upgrade for your classic car. They are compatible with a wide range of 1968-1972 models, including Buick GS, Skylark, Chevrolet Chevelle, Oldsmobile 442, Cutlass, Pontiac GTO, LeMans, and Tempest. These seals are built to keep water, dust, and wind out of your convertible top compartment, protecting your interior and enhancing the overall appearance of your vehicle. Backed by Metro’s Platinum 30-year warranty, you can trust in their durability and long-lasting performance.
Features and Benefits
Designed for hardtop vehicles, these roof rail seals measure 1-1/16" wide and 8' long, providing a perfect fit and reliable protection. Sold as a pair, these seals are crafted by SUPERsoft to deliver better sealing than competitor brands, ensuring your car stays dry and protected from leaks. They are made without accelerants or cheap fillers, which means they won’t age or fail prematurely, offering long-lasting durability. These seals are installed along the roof rails of your hardtop, creating a tight, weatherproof barrier to keep out water, wind, and noise, enhancing your driving experience. Backed by a 30-year warranty, you can trust that these seals are built to last and provide peace of mind for decades.
Features and Benefits
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