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

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

Our Buick Regal 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 Regal, 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 Regal.

1988-1996 Buick Regal Molded Door Weatherstrip Seal. Fits Either Side of 2 Door Model. Each.

This molded door seal is designed for 2-door models and fits either side, ensuring a snug and precise fit for 1988-1996 Buick Regal, Oldsmobile Cutlass Supreme, Pontiac Grand Prix, and Chevrolet Lumina cars, as well as 1997 Oldsmobile Cutlass models. Crafted by SUPERsoft, this seal is 30% softer and more durable than other brands, providing a long-lasting, tight seal to keep out water, wind, and noise. Unlike other seals, it is made without accelerants or cheap fillers, which means it resists premature aging and cracking. The sleek black finish complements the vehicle's design while offering excellent weatherproofing. Backed by a 30-year warranty, this SUPERsoft part ensures peace of mind and reliable performance for decades.

Features and Benefits
  • Provides a tight seal to block water, wind, and noise.
  • Made with premium materials for durability and flexibility.
  • Fits seamlessly on either side of 2-door models.

$79.49
• SALE $63.95
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1988-1996 Buick Regal Molded Door Weatherstrip Seal. Fits Either Side of 2 Door Model. Each.
1973-1996 Buick Regal Roof Rail Weatherstrip Seals, for Hardtop (No Molded Ends).

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
  • Provides a leak-free seal to protect against water damage.
  • Made with high-quality materials for long-term durability.
  • Easy to install for a secure fit along the roof rails.

$83.49
• SALE $66.95
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1973-1996 Buick Regal Roof Rail Weatherstrip Seals, for Hardtop (No Molded Ends).
1973-1996 Buick Regal Roof Rail Weatherstrip Seals, for Hardtop. 1-1/16" Wide X 8' Long.

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
  • Provides a tight seal to prevent leaks and keep your car interior dry.
  • Made with high-quality materials that resist aging and wear.
  • Easy to install along the roof rails for a secure fit.

$114.49
• SALE $91.95
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1973-1996 Buick Regal Roof Rail Weatherstrip Seals, for Hardtop. 1-1/16" Wide X 8' Long.
1978-1987 Buick Regal Lower Door Sill Weatherstrip Seal, 78-88 GM G Body 2 Doors, Pair.

Designed for 1978-1988 GM G-Body 2-door vehicles, these lower door sill seals replace OEM #20376226 and are crafted to fit seamlessly between the panel and the lower part of the doors. Made from durable EPDM polymer, these seals ensure a snug, accurate fit, effectively keeping out moisture, dirt, and drafts while maintaining the integrity of your vehicle's interior. The sleek black finish and precise seal profile enhance both functionality and appearance, making them a reliable upgrade for your classic car or truck. Fitment includes popular models like the Buick Regal, Chevrolet Monte Carlo, El Camino, GMC Caballero, Oldsmobile Cutlass, and Pontiac Grand Prix from 1978 to 1988. Backed by a 90-day hassle-free warranty, these seals are a dependable choice for restoring your vehicle's comfort and style.

Features and Benefits
  • Keeps moisture and dirt out for a cleaner interior.
  • Made from long-lasting EPDM polymer for durability.
  • Fits perfectly between the panel and lower door for a secure seal.
  • Enhances the look and functionality of your classic car.

$129.49
• SALE $103.95
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1978-1987 Buick Regal Lower Door Sill Weatherstrip Seal, 78-88 GM G Body 2 Doors, Pair.
1978-1987 Buick Regal T-Top Side Weatherstrip Seals. Each Piece 25" Long. Pair.

For T-top cars, these side seals measure 25" long each and come as a pair, designed to fit snugly along the edges of your T-top roof. These seals are crafted by SUPERsoft, known for their exceptional durability and softness, being 30% softer than other brands. They are made without accelerants or cheap fillers, ensuring they resist aging and cracking over time. These seals are specifically designed for 1978-1987 Buick Regal, Chevrolet Monte Carlo, Oldsmobile Cutlass (including Calais, Salon, and Supreme models), and Pontiac Grand Prix cars, as well as 1988 Chevrolet Monte Carlo and Oldsmobile Cutlass models. They provide a tight, weatherproof seal to keep out water, wind, and debris, preserving the interior of your classic car while enhancing its overall appearance. Backed by a 30-year warranty exclusive to SUPERsoft products, these seals offer long-term reliability and peace of mind.

Features and Benefits
  • Provides a secure, weatherproof seal for T-top edges.
  • Made with premium materials to resist aging and cracking.
  • Enhances the look and protection of your classic car.

$161.99
• SALE $129.95
Select Color/Material Options  
1978-1987 Buick Regal T-Top Side Weatherstrip Seals. Each Piece 25" Long. Pair.

(52 Total Products)