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 Driver & Passenger Side Roofrail Seal Kit

OEM-replacement roofrail seal kit for Buick / Chevrolet / Oldsmobile. Precision-molded from EPDM rubber to resist UV, heat, ozone, and moisture — restoring the factory seal and eliminating wind noise, water leaks, and drafts.

$147.14
• SALE $101.95
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1966-1967 Buick Gran Sport Driver & Passenger Side Roofrail Seal Kit
1965-1967 Buick Gran Sport Unbeaded Door and Trunk Lock Gasket. 1-3/16" O.D., 7/8" I.D.

This unbeaded door and trunk lock gasket is designed for classic cars, measuring 1-3/16" O.D. and 7/8" I.D., and is perfect for enhancing the longevity and appearance of your vehicle. Crafted by Metro Moulded Parts, this gasket prevents hardware from rattling and squeaking while protecting your car's paint from scratches and rust. It fits a wide range of vintage models, including the 1955-1977 Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac cars, ensuring a snug and secure fit. The gasket's sleek design not only maintains the aesthetic integrity of your classic car but also provides essential protection against wear and tear. With a 90-day warranty, you can trust in its durability and performance.

Features and Benefits
  • Fits a wide range of classic cars.
  • Prevents rattling and squeaking.
  • Protects paint from scratches and rust.

1965-1967 Buick Gran Sport Door Bumper, 57-74 GM Cars, Made with Twin Retainers, Each.

This door bumper is designed for 1957-1974 GM cars and measures 1-1/16" high x 19/32" wide x 1-1/32" long, making it a perfect fit for a wide range of classic vehicles, including the 1960-1967 Buick Electra, Cadillac DeVille, Chevrolet Impala, Oldsmobile Dynamic 88, Pontiac Bonneville, and many more. Crafted with twin retainers, this durable and long-lasting bumper ensures a snug and secure fit, providing reliable protection for your car doors by preventing metal-on-metal contact. Its compact design and sturdy construction make installation quick and easy, so you can restore your vehicle’s functionality and maintain its classic appeal effortlessly. Backed by Metro Moulded Parts' Platinum Warranty, this part is guaranteed for 30 years, giving you peace of mind and confidence in your purchase.

Features and Benefits
  • Protects doors from damage by preventing metal-on-metal contact.
  • Twin retainers ensure a secure and stable fit.
  • Durable material designed to last for years.
  • Easy to install, saving time and effort.

1965-1967 Buick Gran Sport Trunk Bumper. Fits Lower Corner on Decklid. 15/16" O.D.

This trunk bumper is designed for classic cars, measuring 15/16" in outer diameter and 11/16" in height, and fits perfectly on the lower corner of the decklid. It is compatible with a wide range of vehicles, including 1954-1966 Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac models, as well as select 1967-1981 Chevrolet Camaro and Pontiac Firebird models. Made by Metro Moulded Parts, this bumper is built to be durable, long-lasting, and strong, ensuring reliable performance over time. Its sleek black finish complements the vehicle's aesthetics while providing a snug fit to prevent rattling and protect the trunk lid from damage. Installation is straightforward, making it an easy replacement for worn or missing bumpers. Backed by Metro's 30-year warranty, this part offers peace of mind and confidence in its quality.

Features and Benefits
  • Protects the trunk lid from damage and wear.
  • Ensures a snug fit to eliminate rattling.
  • Easy to install for quick replacement.

1965-1967 Buick Gran Sport Sold By The Foot - Roof Rail Weatherstrip Seal.

This item is sold by the foot. For 2-door and 4-door hardtops, this roof rail seal measures 1-1/16" wide and is made from a thick, skin-covered sponge material You’ll need 12 feet for 2-door hardtops and 16 feet for 4-door hardtops. Designed with high-quality EPDM extrusion, this seal offers excellent rebound memory, ensuring a snug fit that keeps out water, wind, and debris. Unlike foam, it resists UV light, so it won’t break down over time, making it a durable choice for your vehicle. The seal is easy to install along the roof rail, providing a clean, professional finish that enhances the look and functionality of your car. Backed by Metro’s Platinum Warranty, this part is protected for 30 years, giving you peace of mind with your purchase.

Features and Benefits
  • Thick, durable material ensures a tight seal.
  • UV-resistant EPDM prevents wear and tear.
  • Excellent rebound memory for a long-lasting fit.
  • Easy installation for a clean, professional look.

(40 Total Products)