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.

1966-1967 Buick Gran Sport Molded Door Weatherstrip Seals for 2-Door Hardtops and Convertibles.

For 2-door hardtops and convertibles, these molded door seals are designed to fit 1966-1967 Buick Gran Sport, Skylark, and Special, as well as Oldsmobile 442 and Cutlass, and Pontiac GTO, LeMans, and Tempest models. These seals are crafted with precision, featuring proper ends, pre-installed clips, and a skin-covered sponge for a snug, weatherproof fit. Metro's seals are 30% softer and more durable than other brands, ensuring a tight seal that keeps out water, wind, and noise while maintaining flexibility over time. Unlike other products, these seals are made without accelerants or cheap fillers, preventing premature aging or cracking. Backed by Metro's 30-year warranty, you can trust these seals to protect your classic car for decades.

Features and Benefits
  • Provides a tight seal to block water, wind, and noise.
  • Made with skin-covered sponge for durability and flexibility.
  • Pre-installed clips ensure easy and secure installation.

$182.99
• SALE $146.95
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1966-1967 Buick Gran Sport Molded Door Weatherstrip Seals for 2-Door Hardtops and Convertibles.
1966-1967 Buick Gran Sport Vent Window Weatherstrip Seals. 2-Door Hardtop and Convertible.

For 2-door hardtop and convertible models, these vent window seals replace OEM# 9706596/7 and are designed to fit perfectly on both the left and right sides. Crafted with the latest advancements in CAD and CNC milling, these seals ensure precise 3D contouring for an exact fit and an OEM-quality appearance. They are tailored for 1966-1967 Buick Gran Sport, Skylark, Chevrolet Chevelle, Malibu, Oldsmobile 442, Cutlass, F85, Pontiac GTO, LeMans, and Tempest models, making them a versatile choice for restoring classic cars. These seals are built to keep out water, wind, and debris, ensuring a quieter and more comfortable ride while protecting your interior. Backed by Metro’s 30-year warranty, you can trust in their durability and long-lasting performance.

Features and Benefits
  • Provides a snug, weatherproof seal for vent windows.
  • Enhances the car's appearance with an OEM-quality finish.
  • Protects the interior from water and wind damage.

$299.49
• SALE $238.95
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1966-1967 Buick Gran Sport Vent Window Weatherstrip Seals. 2-Door Hardtop and Convertible.
1965 Buick Gran Sport Vent Window Weatherstrip Seals. 2-Door Hardtop and Convertible. Pair. R&L.

For 2-door hardtop and convertible models, these vent window seals are precision-engineered to fit perfectly, ensuring a snug and weatherproof seal. Designed for both the driver and passenger sides (R&L), they are crafted using the latest advancements in CAD and CNC milling for accurate 3D contouring and an OEM-quality appearance. These seals are made to keep out wind, water, and noise, enhancing the comfort and durability of your classic car. They are compatible with 1964-1965 Buick Skylark, Special, and Gran Sport; 1964-1965 Chevrolet Chevelle and Malibu; 1964-1965 Oldsmobile Cutlass, 442, and F85; and 1964-1965 Pontiac GTO, LeMans, and Tempest. Backed by Metro’s 30-year warranty, these seals are built to last, giving you peace of mind for decades.

Features and Benefits
  • Provides a tight seal to block wind, water, and noise.
  • Precision-engineered for a perfect fit and OEM-quality look.
  • Made with advanced CAD and CNC milling for durability.

$334.49
• SALE $266.95
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1965 Buick Gran Sport Vent Window Weatherstrip Seals. 2-Door Hardtop and Convertible. Pair. R&L.
1966-1967 Buick Gran Sport Weatherstrip Seal Kit, for 2-Door Hardtop.

For 2-door hardtop models, this Basic Kit includes high-quality seals for the door (LM 12), roof rail (RR 5001), and trunk (TK 46-16), ensuring a snug and weatherproof fit. Designed specifically for 1966-1967 Buick Gran Sport, Skylark, and Special, as well as Oldsmobile 442, Cutlass, and F85, and Pontiac GTO, LeMans, and Tempest, this kit is tailored to restore and protect your classic car. Each seal is crafted from durable materials to prevent water, dust, and wind from entering your vehicle, keeping the interior clean and quiet. The seals are easy to install, fitting seamlessly into the original mounting points for a hassle-free restoration. Backed by a 30-year warranty from SuperSoft, you can trust these parts to last for decades.

Features and Benefits
  • Protects against water, dust, and wind for a cleaner interior.
  • Tailored fit for 1966-1967 Buick, Oldsmobile, and Pontiac models.
  • Easy installation with precise fitment to original mounting points.

$361.99
• SALE $288.95
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1966-1967 Buick Gran Sport Weatherstrip Seal Kit, for 2-Door Hardtop.
1966-1967 Buick Gran Sport Weatherstrip Seal Kit, for 2-Door Convertible.

For 2-door convertible models, this Basic Kit includes high-quality seals for the door (LM 12), roof rail (RR 1609), and trunk (TK 46-16), ensuring a snug and weatherproof fit. Designed specifically for 1966-1967 Buick Gran Sport, Skylark, and Special, as well as Oldsmobile 442 and Cutlass, and Pontiac GTO, LeMans, and Tempest models, this kit is tailored to restore your classic car’s original charm while keeping it protected from the elements. Each piece is crafted from durable materials to provide a tight seal, preventing water, dust, and wind from entering your vehicle. The seals are easy to install, fitting seamlessly into the designated areas for a clean and professional finish. Backed by a 30-year warranty from SuperSoft, you can trust in the long-lasting performance and reliability of this kit.

Features and Benefits
  • Protects against water, dust, and wind intrusion.
  • Tailored fit for 1966-1967 Buick, Oldsmobile, and Pontiac models.
  • Easy installation for a professional-grade finish.

$788.99
• SALE $629.95
Select Color/Material Options  
1966-1967 Buick Gran Sport Weatherstrip Seal Kit, for 2-Door Convertible.

(40 Total Products)