Weatherstrip & Seals - OEM-Fit EPDM Rubber Seals

Seal out wind, water, dust, and road noise with precision-fit automotive weatherstrip and seals manufactured to OEM specifications for your door, trunk, hatch, window, and window channel. Each seal is engineered to match the original profile and mounting groove of your vehicle’s factory application—restoring a tight, quiet seal and stopping the leaks and drafts that come with age.

Our 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, shrinking, or hardening the way factory-original rubber does over time.

Factory Interiors sources weatherstrip and seals from trusted manufacturers including Metro Moulded Parts and Fairchild Industries, giving you a wide range of factory-correct options for your vehicle. Use the Vehicle Selector above to find the correct weatherstrip for your year, make, and model, 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.

1978-1980 Oldsmobile Cutlass Calais Molded Door Weatherstrip Seals. 2-Door Coupe.

For 2-door coupe models, these molded door seals replace OEM part numbers 20008188/9 and are designed as a pair for both the right and left sides. Crafted by SUPERsoft, these seals are 30% softer and more durable than other brands, ensuring a snug fit and long-lasting performance. They are precision-molded to prevent water, wind, and noise from entering your vehicle, enhancing comfort and protection. Unlike other seals, these are made without accelerants or cheap fillers, which means they resist premature aging and cracking. Fitment includes a wide range of 1978-1987 models, such as the Buick Century, Buick Regal, Chevrolet El Camino, Chevrolet Malibu, GMC Caballero, Oldsmobile Cutlass, Pontiac Grand Am, and Pontiac LeMans. Backed by a 30-year warranty, these seals provide peace of mind and exceptional value.

Features and Benefits
  • Keeps water, wind, and noise out for a quieter ride.
  • Made with premium materials to resist aging and cracking.
  • Custom-molded for a perfect fit on 2-door coupe models.

$213.49
• SALE $170.95
Select Color/Material Options  
1978-1980 Oldsmobile Cutlass Calais Molded Door Weatherstrip Seals. 2-Door Coupe.
1978-1980 Oldsmobile Cutlass Salon Molded Door Weatherstrip Seals. 2-Door Coupe.

For 2-door coupe models, these molded door seals replace OEM part numbers 20008188/9 and are designed as a pair for both the right and left sides. Crafted by SUPERsoft, these seals are 30% softer and more durable than other brands, ensuring a snug fit and long-lasting performance. They are precision-molded to prevent water, wind, and noise from entering your vehicle, enhancing comfort and protection. Unlike other seals, these are made without accelerants or cheap fillers, which means they resist premature aging and cracking. Fitment includes a wide range of 1978-1987 models, such as the Buick Century, Buick Regal, Chevrolet El Camino, Chevrolet Malibu, GMC Caballero, Oldsmobile Cutlass, Pontiac Grand Am, and Pontiac LeMans. Backed by a 30-year warranty, these seals provide peace of mind and exceptional value.

Features and Benefits
  • Keeps water, wind, and noise out for a quieter ride.
  • Made with premium materials to resist aging and cracking.
  • Custom-molded for a perfect fit on 2-door coupe models.

$213.49
• SALE $170.95
Select Color/Material Options  
1978-1980 Oldsmobile Cutlass Salon Molded Door Weatherstrip Seals. 2-Door Coupe.
1978-1980 Oldsmobile Cutlass Supreme Molded Door Weatherstrip Seals. 2-Door Coupe.

For 2-door coupe models, these molded door seals replace OEM part numbers 20008188/9 and are designed as a pair for both the right and left sides. Crafted by SUPERsoft, these seals are 30% softer and more durable than other brands, ensuring a snug fit and long-lasting performance. They are precision-molded to prevent water, wind, and noise from entering your vehicle, enhancing comfort and protection. Unlike other seals, these are made without accelerants or cheap fillers, which means they resist premature aging and cracking. Fitment includes a wide range of 1978-1987 models, such as the Buick Century, Buick Regal, Chevrolet El Camino, Chevrolet Malibu, GMC Caballero, Oldsmobile Cutlass, Pontiac Grand Am, and Pontiac LeMans. Backed by a 30-year warranty, these seals provide peace of mind and exceptional value.

Features and Benefits
  • Keeps water, wind, and noise out for a quieter ride.
  • Made with premium materials to resist aging and cracking.
  • Custom-molded for a perfect fit on 2-door coupe models.

$213.49
• SALE $170.95
Select Color/Material Options  
1978-1980 Oldsmobile Cutlass Supreme Molded Door Weatherstrip Seals. 2-Door Coupe.
1978-1980 Pontiac Grand Am Molded Door Weatherstrip Seals. 2-Door Coupe.

For 2-door coupe models, these molded door seals replace OEM part numbers 20008188/9 and are designed as a pair for both the right and left sides. Crafted by SUPERsoft, these seals are 30% softer and more durable than other brands, ensuring a snug fit and long-lasting performance. They are precision-molded to prevent water, wind, and noise from entering your vehicle, enhancing comfort and protection. Unlike other seals, these are made without accelerants or cheap fillers, which means they resist premature aging and cracking. Fitment includes a wide range of 1978-1987 models, such as the Buick Century, Buick Regal, Chevrolet El Camino, Chevrolet Malibu, GMC Caballero, Oldsmobile Cutlass, Pontiac Grand Am, and Pontiac LeMans. Backed by a 30-year warranty, these seals provide peace of mind and exceptional value.

Features and Benefits
  • Keeps water, wind, and noise out for a quieter ride.
  • Made with premium materials to resist aging and cracking.
  • Custom-molded for a perfect fit on 2-door coupe models.

$213.49
• SALE $170.95
Select Color/Material Options  
1978-1980 Pontiac Grand Am Molded Door Weatherstrip Seals. 2-Door Coupe.
1978-1981 Pontiac LeMans Molded Door Weatherstrip Seals. 2-Door Coupe.

For 2-door coupe models, these molded door seals replace OEM part numbers 20008188/9 and are designed as a pair for both the right and left sides. Crafted by SUPERsoft, these seals are 30% softer and more durable than other brands, ensuring a snug fit and long-lasting performance. They are precision-molded to prevent water, wind, and noise from entering your vehicle, enhancing comfort and protection. Unlike other seals, these are made without accelerants or cheap fillers, which means they resist premature aging and cracking. Fitment includes a wide range of 1978-1987 models, such as the Buick Century, Buick Regal, Chevrolet El Camino, Chevrolet Malibu, GMC Caballero, Oldsmobile Cutlass, Pontiac Grand Am, and Pontiac LeMans. Backed by a 30-year warranty, these seals provide peace of mind and exceptional value.

Features and Benefits
  • Keeps water, wind, and noise out for a quieter ride.
  • Made with premium materials to resist aging and cracking.
  • Custom-molded for a perfect fit on 2-door coupe models.

$213.49
• SALE $170.95
Select Color/Material Options  
1978-1981 Pontiac LeMans Molded Door Weatherstrip Seals. 2-Door Coupe.