Buick Weatherstrip & Seals - OEM-Fit Door, Trunk & Window Seals

Stop leaks, drafts, and road noise in your Buick 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 —restoring a tight, quiet seal around your doors, trunk, hatch, and windows.

Our Buick 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 , 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 .

1964-1972 Buick Electra Firewall Insulation Fastener. 1 in. Dia. W Head. 1-1/2 in. L.

This firewall insulation fastener, designed for cars and trucks, measures 1 inch in diameter with a W-shaped head and 1-1/2 inches in length. It replaces OEM# (GM) 7642589 and (AMC) 4001934, ensuring a precise fit for your restoration or repair needs. Made from durable black rubber, this fastener is resistant to chemicals, sunlight, and ozone, making it ideal for long-term use in harsh environments. Its state-of-the-art rubber compounds provide excellent durability and reliability, ensuring it holds insulation securely in place. This part is compatible with a wide range of vehicles, including 1964-1972 Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac models, as well as select Chevrolet El Camino trucks. Backed by Metro Moulded Parts' commitment to quality, this fastener is a dependable choice for maintaining your vehicle's original look and function.

Features and Benefits
  • Holds firewall insulation securely in place.
  • Resistant to chemicals, sunlight, and ozone for long-lasting performance.
  • Made with advanced rubber compounds for durability.
  • Fits a wide range of classic cars and trucks for versatile use.

1970-1972 Buick Estate Wagon Firewall Insulation Fastener. 1 in. Dia. W Head. 1-1/2 in. L.

This firewall insulation fastener, designed for cars and trucks, measures 1 inch in diameter with a W-shaped head and 1-1/2 inches in length. It replaces OEM# (GM) 7642589 and (AMC) 4001934, ensuring a precise fit for your restoration or repair needs. Made from durable black rubber, this fastener is resistant to chemicals, sunlight, and ozone, making it ideal for long-term use in harsh environments. Its state-of-the-art rubber compounds provide excellent durability and reliability, ensuring it holds insulation securely in place. This part is compatible with a wide range of vehicles, including 1964-1972 Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac models, as well as select Chevrolet El Camino trucks. Backed by Metro Moulded Parts' commitment to quality, this fastener is a dependable choice for maintaining your vehicle's original look and function.

Features and Benefits
  • Holds firewall insulation securely in place.
  • Resistant to chemicals, sunlight, and ozone for long-lasting performance.
  • Made with advanced rubber compounds for durability.
  • Fits a wide range of classic cars and trucks for versatile use.

1970-1972 Buick GS Firewall Insulation Fastener. 1 in. Dia. W Head. 1-1/2 in. L.

This firewall insulation fastener, designed for cars and trucks, measures 1 inch in diameter with a W-shaped head and 1-1/2 inches in length. It replaces OEM# (GM) 7642589 and (AMC) 4001934, ensuring a precise fit for your restoration or repair needs. Made from durable black rubber, this fastener is resistant to chemicals, sunlight, and ozone, making it ideal for long-term use in harsh environments. Its state-of-the-art rubber compounds provide excellent durability and reliability, ensuring it holds insulation securely in place. This part is compatible with a wide range of vehicles, including 1964-1972 Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac models, as well as select Chevrolet El Camino trucks. Backed by Metro Moulded Parts' commitment to quality, this fastener is a dependable choice for maintaining your vehicle's original look and function.

Features and Benefits
  • Holds firewall insulation securely in place.
  • Resistant to chemicals, sunlight, and ozone for long-lasting performance.
  • Made with advanced rubber compounds for durability.
  • Fits a wide range of classic cars and trucks for versatile use.

1968-1969 Buick GS 350 Firewall Insulation Fastener. 1 in. Dia. W Head. 1-1/2 in. L.

This firewall insulation fastener, designed for cars and trucks, measures 1 inch in diameter with a W-shaped head and 1-1/2 inches in length. It replaces OEM# (GM) 7642589 and (AMC) 4001934, ensuring a precise fit for your restoration or repair needs. Made from durable black rubber, this fastener is resistant to chemicals, sunlight, and ozone, making it ideal for long-term use in harsh environments. Its state-of-the-art rubber compounds provide excellent durability and reliability, ensuring it holds insulation securely in place. This part is compatible with a wide range of vehicles, including 1964-1972 Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac models, as well as select Chevrolet El Camino trucks. Backed by Metro Moulded Parts' commitment to quality, this fastener is a dependable choice for maintaining your vehicle's original look and function.

Features and Benefits
  • Holds firewall insulation securely in place.
  • Resistant to chemicals, sunlight, and ozone for long-lasting performance.
  • Made with advanced rubber compounds for durability.
  • Fits a wide range of classic cars and trucks for versatile use.

1968-1969 Buick GS 400 Firewall Insulation Fastener. 1 in. Dia. W Head. 1-1/2 in. L.

This firewall insulation fastener, designed for cars and trucks, measures 1 inch in diameter with a W-shaped head and 1-1/2 inches in length. It replaces OEM# (GM) 7642589 and (AMC) 4001934, ensuring a precise fit for your restoration or repair needs. Made from durable black rubber, this fastener is resistant to chemicals, sunlight, and ozone, making it ideal for long-term use in harsh environments. Its state-of-the-art rubber compounds provide excellent durability and reliability, ensuring it holds insulation securely in place. This part is compatible with a wide range of vehicles, including 1964-1972 Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac models, as well as select Chevrolet El Camino trucks. Backed by Metro Moulded Parts' commitment to quality, this fastener is a dependable choice for maintaining your vehicle's original look and function.

Features and Benefits
  • Holds firewall insulation securely in place.
  • Resistant to chemicals, sunlight, and ozone for long-lasting performance.
  • Made with advanced rubber compounds for durability.
  • Fits a wide range of classic cars and trucks for versatile use.

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