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

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

Our Buick Gran Sport 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 Gran Sport, 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 Gran Sport.

1965 Buick Gran Sport Door Weatherstrip Seal, with Clips and Molded Ends. For 2-Door Sedans.

For 2-door sedans, this door seal pair with clips and molded ends is designed to replace OEM #4892622/3, ensuring a snug and reliable fit. Crafted by SUPERsoft, these seals are 30% softer and more durable than other brands, providing a superior seal against wind, water, and noise. The seals are free from accelerants and cheap fillers, which means they resist aging and cracking over time. Perfectly tailored for 1964-1965 Buick Skylark, Special, and Gran Sport; Chevrolet Chevelle and Malibu; Oldsmobile Cutlass, F85, and 442; and Pontiac GTO, LeMans, and Tempest models, these seals restore the original look and functionality of your classic car. Backed by a 30-year warranty, these seals offer long-lasting protection and peace of mind.

Features and Benefits
  • Provides a tight seal to block wind, water, and noise.
  • Made from durable materials that resist aging and cracking.
  • Easy installation with pre-attached clips and molded ends.

$130.99
• SALE $104.95
Select Color/Material Options  
1965 Buick Gran Sport Door Weatherstrip Seal, with Clips and Molded Ends. For 2-Door Sedans.
1966-1967 Buick Gran Sport Molded Door Weatherstrip Seals with Clips. For 2-Door Sedans.

For 2-door sedans, these molded door seals with clips are designed to replace OEM #4540548/9 and measure 146" each, providing a precise fit for your classic car restoration. Crafted by SUPERsoft, these seals are 30% softer and more durable than other brands, ensuring a snug, long-lasting seal that keeps out water, wind, and noise. Unlike other options, these seals are made without accelerants or cheap fillers, preventing premature aging or cracking. Fitment includes 1966-1967 Buick Gran Sport, Skylark, and Special; 1966-1967 Chevrolet Chevelle; 1966-1967 Oldsmobile 442, Cutlass, and F85; and 1966-1967 Pontiac GTO, LeMans, and Tempest. Backed by a 30-year warranty, these seals are a reliable choice for maintaining your car’s original look and feel while protecting its interior from the elements.

Features and Benefits
  • Keeps water, wind, and noise out for a quieter ride.
  • Made with durable materials that resist aging and cracking.
  • Easy installation with pre-attached clips for a secure fit.

$130.99
• SALE $104.95
Select Color/Material Options  
1966-1967 Buick Gran Sport Molded Door Weatherstrip Seals with Clips. For 2-Door Sedans.
1965-1967 Buick Gran Sport Shift Boot. Each.

Designed for classic Buick cars, this shift boot fits 1965-1972 Buick Gran Sport, GS, GS 350, GS 400, GS 455, and Skylark models. Crafted with precision using over 50 tons of pressure, it ensures perfect definition and detailing for a snug fit and clean appearance. This durable black rubber boot is designed to seal the area around the gear shift, keeping dirt, moisture, and debris out of your vehicle's interior while maintaining a sleek, factory-original look. Its flexible yet sturdy construction makes installation straightforward, providing a secure fit that enhances the overall aesthetic of your car's interior. Backed by Metro's Platinum 30-year warranty, this part offers long-lasting reliability and peace of mind.

Features and Benefits
  • Protects your interior from dirt and moisture.
  • Designed for a precise fit with classic Buick models.
  • Durable rubber construction for long-term use.

$145.49
• SALE $116.95
Select Color/Material Options  
1965-1967 Buick Gran Sport Shift Boot. Each.
1966-1967 Buick Gran Sport Molded Roof Rail Weatherstrip Seals for 2-Door Hardtop Only. Pair R&L.

Designed specifically for 2-door hardtop models, these molded roof rail seals are a perfect fit for 1966-1967 Buick Gran Sport, Skylark, Chevrolet Chevelle, Malibu, Oldsmobile 442, Cutlass, F85, Pontiac GTO, LeMans, and Tempest cars. Crafted by SUPERsoft, these seals are engineered to provide better sealing than competitor brands, ensuring your vehicle stays dry and protected from leaks. The pair includes both left and right seals, molded with precision to fit snugly along the roof rails, preventing water and air intrusion. Unlike other brands, Metro parts avoid using accelerants or cheap fillers, which can lead to premature aging and failure, guaranteeing long-lasting durability. Backed by a 30-year warranty, these seals offer peace of mind and confidence in their quality.

Features and Benefits
  • Provides a watertight seal to keep your car interior dry.
  • Molded for a precise fit on 2-door hardtop models.
  • Made with premium materials to resist aging and wear.

$153.49
• SALE $122.95
Select Color/Material Options  
1966-1967 Buick Gran Sport Molded Roof Rail Weatherstrip Seals for 2-Door Hardtop Only. Pair R&L.
1965 Buick Gran Sport Door Weatherstrip Seal, with Clips and Molded Ends.

For 2-door hardtops and convertibles, this door seal pair with clips and molded ends is designed to replace OEM #4894905/6, ensuring a precise fit and reliable performance. Crafted by SUPERsoft, these seals are 30% softer and more durable than other brands, providing a snug, weatherproof barrier to keep out wind, water, and noise. Unlike other seals, these are made without accelerants or cheap fillers, which means they resist aging and cracking over time. Perfectly tailored for 1964-1965 Buick Skylark, Special, and Gran Sport; Chevrolet Chevelle and Malibu; Oldsmobile Cutlass and F85; and Pontiac GTO, LeMans, and Tempest models, these seals will restore your classic car’s comfort and style. Backed by a 30-year warranty, you can trust SUPERsoft to deliver long-lasting quality.

Features and Benefits
  • Keeps out wind, water, and noise for a quieter ride.
  • Molded ends and clips ensure easy installation and a secure fit.
  • Made without cheap fillers to resist cracking and aging.

$179.99
• SALE $143.95
Select Color/Material Options  
1965 Buick Gran Sport Door Weatherstrip Seal, with Clips and Molded Ends.

(40 Total Products)