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

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

Our GMC 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 GMC , 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 GMC .

1978-1987 GMC Caballero Hood and Cowl Weatherstrip Seal.

This hood and cowl seal is designed for 1978-1988 GM A-body, A-Special (A-SPEC), and G-body 2-door hardtop coupes with rear-wheel drive (RWD), replacing OEM# 20255857 and 25505704. Crafted with a dual-durometer extrusion and a flexible metal core, it ensures durability and a snug fit over the pinchweld for easy installation. Made in the USA, this seal is jet black, not ash gray, offering a refined concours-quality appearance. It fits a wide range of vehicles, including 1978-1988 Buick Century, Regal, Chevrolet El Camino, Malibu, Monte Carlo, GMC Caballero, Oldsmobile Cutlass models, and Pontiac Grand Am, Grand Prix, LeMans, and Grand LeMans. This part is built to keep your hood and cowl area sealed against water, dust, and debris, enhancing the longevity of your vehicle while maintaining its classic look. Backed by a 90-day warranty, it’s a reliable choice for restoring or maintaining your car or truck.

Features and Benefits
  • Keeps water and debris out of the hood and cowl area.
  • Easy installation with a secure fit over the pinchweld.
  • Durable dual-durometer construction with a flexible metal core.
  • Jet black finish for a sleek, concours-quality appearance.

$49.49
• SALE $39.95
Select Color/Material Options  
1978-1987 GMC Caballero Hood and Cowl Weatherstrip Seal.
1978 GMC G1500 Front LH (Driver's Side) Molded Door Weatherstrip Seal.

This front LH (driver's side) molded door seal is designed specifically for full-size vans, including the 1996 early design models. Crafted by SUPERsoft, this seal is 30% softer and more durable than other brands, ensuring a snug, long-lasting fit. It is free from accelerants and cheap fillers, which means it resists premature aging and failure. The seal is precision-molded to fit seamlessly onto the door frame, providing excellent weatherproofing to keep out water, dust, and wind noise. Compatible with a wide range of models, including 1978-1996 Chevrolet G10, G20, G30 Vans, and GMC G1500, G2500, G3500 Vans, this part ensures a perfect fit for your vehicle. Backed by a 30-year warranty exclusive to SUPERsoft products, this door seal offers peace of mind and exceptional value.

Features and Benefits
  • Provides a tight seal to block water, dust, and wind noise.
  • Made with premium materials for durability and flexibility.
  • Easy to install with pre-attached clips for a secure fit.

$51.99
• SALE $41.95
Select Color/Material Options  
1978 GMC G1500 Front LH (Driver's Side) Molded Door Weatherstrip Seal.
1979-1995 GMC G1500 Front LH (Driver's Side) Molded Door Weatherstrip Seal.

This front LH (driver's side) molded door seal is designed specifically for full-size vans, including the 1996 early design models. Crafted by SUPERsoft, this seal is 30% softer and more durable than other brands, ensuring a snug, long-lasting fit. It is free from accelerants and cheap fillers, which means it resists premature aging and failure. The seal is precision-molded to fit seamlessly onto the door frame, providing excellent weatherproofing to keep out water, dust, and wind noise. Compatible with a wide range of models, including 1978-1996 Chevrolet G10, G20, G30 Vans, and GMC G1500, G2500, G3500 Vans, this part ensures a perfect fit for your vehicle. Backed by a 30-year warranty exclusive to SUPERsoft products, this door seal offers peace of mind and exceptional value.

Features and Benefits
  • Provides a tight seal to block water, dust, and wind noise.
  • Made with premium materials for durability and flexibility.
  • Easy to install with pre-attached clips for a secure fit.

$51.99
• SALE $41.95
Select Color/Material Options  
1979-1995 GMC G1500 Front LH (Driver's Side) Molded Door Weatherstrip Seal.
1979-1995 GMC G2500 Front LH (Driver's Side) Molded Door Weatherstrip Seal.

This front LH (driver's side) molded door seal is designed specifically for full-size vans, including the 1996 early design models. Crafted by SUPERsoft, this seal is 30% softer and more durable than other brands, ensuring a snug, long-lasting fit. It is free from accelerants and cheap fillers, which means it resists premature aging and failure. The seal is precision-molded to fit seamlessly onto the door frame, providing excellent weatherproofing to keep out water, dust, and wind noise. Compatible with a wide range of models, including 1978-1996 Chevrolet G10, G20, G30 Vans, and GMC G1500, G2500, G3500 Vans, this part ensures a perfect fit for your vehicle. Backed by a 30-year warranty exclusive to SUPERsoft products, this door seal offers peace of mind and exceptional value.

Features and Benefits
  • Provides a tight seal to block water, dust, and wind noise.
  • Made with premium materials for durability and flexibility.
  • Easy to install with pre-attached clips for a secure fit.

$51.99
• SALE $41.95
Select Color/Material Options  
1979-1995 GMC G2500 Front LH (Driver's Side) Molded Door Weatherstrip Seal.
1979-1996 GMC G3500 Front LH (Driver's Side) Molded Door Weatherstrip Seal.

This front LH (driver's side) molded door seal is designed specifically for full-size vans, including the 1996 early design models. Crafted by SUPERsoft, this seal is 30% softer and more durable than other brands, ensuring a snug, long-lasting fit. It is free from accelerants and cheap fillers, which means it resists premature aging and failure. The seal is precision-molded to fit seamlessly onto the door frame, providing excellent weatherproofing to keep out water, dust, and wind noise. Compatible with a wide range of models, including 1978-1996 Chevrolet G10, G20, G30 Vans, and GMC G1500, G2500, G3500 Vans, this part ensures a perfect fit for your vehicle. Backed by a 30-year warranty exclusive to SUPERsoft products, this door seal offers peace of mind and exceptional value.

Features and Benefits
  • Provides a tight seal to block water, dust, and wind noise.
  • Made with premium materials for durability and flexibility.
  • Easy to install with pre-attached clips for a secure fit.

$51.99
• SALE $41.95
Select Color/Material Options  
1979-1996 GMC G3500 Front LH (Driver's Side) Molded Door Weatherstrip Seal.

(1091 Total Products)