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.

1981-1987 Buick Regal Molded Door Weatherstrip Seals. 2-Door Coupe.

For a 2-door coupe, these molded door seals replace OEM part numbers 20201220/1 and are designed to fit snugly on both the driver and passenger sides (R&L). Crafted by SUPERsoft, these seals are 30% softer and more durable than other brands, ensuring a tight, long-lasting seal that keeps out wind, water, and noise. Unlike other seals, they are made without accelerants or cheap fillers, which means they resist aging and cracking over time. These seals are specifically designed for 1981-1987 Buick Regal and Oldsmobile Cutlass models, including the Cutlass Calais, Cutlass Supreme, and Cutlass Salon, as well as the 1988 Oldsmobile Cutlass Supreme. With their precise molding and easy installation, these seals will restore your car’s original look and functionality while protecting the interior from the elements. Backed by a 30-year warranty from SUPERsoft, you can trust in their quality and durability.

Features and Benefits
  • Keeps out wind, water, and noise for a quieter ride.
  • Made with premium materials to resist aging and cracking.
  • Easy to install for a perfect fit on both doors.

$214.49
• SALE $171.95
Select Color/Material Options  
1981-1987 Buick Regal Molded Door Weatherstrip Seals. 2-Door Coupe.
1981 Oldsmobile Cutlass Molded Door Weatherstrip Seals. 2-Door Coupe.

For a 2-door coupe, these molded door seals replace OEM part numbers 20201220/1 and are designed to fit snugly on both the driver and passenger sides (R&L). Crafted by SUPERsoft, these seals are 30% softer and more durable than other brands, ensuring a tight, long-lasting seal that keeps out wind, water, and noise. Unlike other seals, they are made without accelerants or cheap fillers, which means they resist aging and cracking over time. These seals are specifically designed for 1981-1987 Buick Regal and Oldsmobile Cutlass models, including the Cutlass Calais, Cutlass Supreme, and Cutlass Salon, as well as the 1988 Oldsmobile Cutlass Supreme. With their precise molding and easy installation, these seals will restore your car’s original look and functionality while protecting the interior from the elements. Backed by a 30-year warranty from SUPERsoft, you can trust in their quality and durability.

Features and Benefits
  • Keeps out wind, water, and noise for a quieter ride.
  • Made with premium materials to resist aging and cracking.
  • Easy to install for a perfect fit on both doors.

$214.49
• SALE $171.95
Select Color/Material Options  
1981 Oldsmobile Cutlass Molded Door Weatherstrip Seals. 2-Door Coupe.
1981-1984 Oldsmobile Cutlass Calais Molded Door Weatherstrip Seals. 2-Door Coupe.

For a 2-door coupe, these molded door seals replace OEM part numbers 20201220/1 and are designed to fit snugly on both the driver and passenger sides (R&L). Crafted by SUPERsoft, these seals are 30% softer and more durable than other brands, ensuring a tight, long-lasting seal that keeps out wind, water, and noise. Unlike other seals, they are made without accelerants or cheap fillers, which means they resist aging and cracking over time. These seals are specifically designed for 1981-1987 Buick Regal and Oldsmobile Cutlass models, including the Cutlass Calais, Cutlass Supreme, and Cutlass Salon, as well as the 1988 Oldsmobile Cutlass Supreme. With their precise molding and easy installation, these seals will restore your car’s original look and functionality while protecting the interior from the elements. Backed by a 30-year warranty from SUPERsoft, you can trust in their quality and durability.

Features and Benefits
  • Keeps out wind, water, and noise for a quieter ride.
  • Made with premium materials to resist aging and cracking.
  • Easy to install for a perfect fit on both doors.

$214.49
• SALE $171.95
Select Color/Material Options  
1981-1984 Oldsmobile Cutlass Calais Molded Door Weatherstrip Seals. 2-Door Coupe.
1985-1987 Oldsmobile Cutlass Salon Molded Door Weatherstrip Seals. 2-Door Coupe.

For a 2-door coupe, these molded door seals replace OEM part numbers 20201220/1 and are designed to fit snugly on both the driver and passenger sides (R&L). Crafted by SUPERsoft, these seals are 30% softer and more durable than other brands, ensuring a tight, long-lasting seal that keeps out wind, water, and noise. Unlike other seals, they are made without accelerants or cheap fillers, which means they resist aging and cracking over time. These seals are specifically designed for 1981-1987 Buick Regal and Oldsmobile Cutlass models, including the Cutlass Calais, Cutlass Supreme, and Cutlass Salon, as well as the 1988 Oldsmobile Cutlass Supreme. With their precise molding and easy installation, these seals will restore your car’s original look and functionality while protecting the interior from the elements. Backed by a 30-year warranty from SUPERsoft, you can trust in their quality and durability.

Features and Benefits
  • Keeps out wind, water, and noise for a quieter ride.
  • Made with premium materials to resist aging and cracking.
  • Easy to install for a perfect fit on both doors.

$214.49
• SALE $171.95
Select Color/Material Options  
1985-1987 Oldsmobile Cutlass Salon Molded Door Weatherstrip Seals. 2-Door Coupe.
1981-1988 Oldsmobile Cutlass Supreme Molded Door Weatherstrip Seals. 2-Door Coupe.

For a 2-door coupe, these molded door seals replace OEM part numbers 20201220/1 and are designed to fit snugly on both the driver and passenger sides (R&L). Crafted by SUPERsoft, these seals are 30% softer and more durable than other brands, ensuring a tight, long-lasting seal that keeps out wind, water, and noise. Unlike other seals, they are made without accelerants or cheap fillers, which means they resist aging and cracking over time. These seals are specifically designed for 1981-1987 Buick Regal and Oldsmobile Cutlass models, including the Cutlass Calais, Cutlass Supreme, and Cutlass Salon, as well as the 1988 Oldsmobile Cutlass Supreme. With their precise molding and easy installation, these seals will restore your car’s original look and functionality while protecting the interior from the elements. Backed by a 30-year warranty from SUPERsoft, you can trust in their quality and durability.

Features and Benefits
  • Keeps out wind, water, and noise for a quieter ride.
  • Made with premium materials to resist aging and cracking.
  • Easy to install for a perfect fit on both doors.

$214.49
• SALE $171.95
Select Color/Material Options  
1981-1988 Oldsmobile Cutlass Supreme Molded Door Weatherstrip Seals. 2-Door Coupe.