GMC Weatherstrip & Seals - OEM-Fit Door, Trunk & Window Seals

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

Our GMC 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 GMC , 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 GMC .

1966 GMC K1000 Rear Window Weatherstrip Seal, 55-66 GM Full Size Truck W/ Chrome Lockstrip.

For GM full-size trucks from 1955 to 1966, this rear window seal is designed specifically for second-series models with large windows. Made from durable EPDM polymer, it ensures a snug, accurate fit to reduce drafts and road noise while keeping the elements out. The set includes a chrome lockstrip for added style and secure installation. This seal is crafted to match the original profile, providing a clean and professional look once installed. Compatible with a wide range of Chevrolet and GMC trucks from 1955 to 1966, including C10, C20, C30, K10, K20, and various GMC series models, this part is a reliable choice for restoring or maintaining your classic truck. Backed by a 90-day hassle-free warranty, it’s a dependable solution for keeping your truck comfortable and weatherproof.

Features and Benefits
  • Reduces drafts and road noise for a quieter ride.
  • Made from durable EPDM polymer for long-lasting performance.
  • Includes a chrome lockstrip for secure and stylish installation.
  • Designed for a precise fit to maintain your truck’s classic look.

$95.99
• SALE $76.95
Select Color/Material Options  
1966 GMC K1000 Rear Window Weatherstrip Seal, 55-66 GM Full Size Truck W/ Chrome Lockstrip.
1964-1965 GMC 1000 Molded Door Weatherstrip Seals. 163-1/2" Long Each. Pair R&L.

For 1964-1966 Chevrolet and GMC Pickup Trucks, these molded door seals are 163-1/2" long each and come as a pair for both the right and left sides. Designed to fit models like the Chevrolet C10, C20, C30, K10, K20, and GMC 1000, 1500, and 2500 series, these seals ensure a snug, weatherproof fit to keep out wind, rain, and road noise. Made by SUPERsoft, these seals are 30% softer and more durable than other brands, offering a long-lasting solution that won’t crack or wear prematurely. Unlike cheaper alternatives, they are crafted without accelerants or fillers, ensuring they maintain their shape and performance over time. Backed by a 30-year warranty, these seals provide peace of mind and reliable protection for your classic truck.

Features and Benefits
  • Keeps your truck's interior dry and quiet by sealing out water and noise.
  • Made from premium materials that resist aging and cracking.
  • Easy to install for a precise fit on both doors.

$96.49
• SALE $76.95
Select Color/Material Options  
1964-1965 GMC 1000 Molded Door Weatherstrip Seals. 163-1/2" Long Each. Pair R&L.
1966 GMC 1500 Molded Door Weatherstrip Seals. 163-1/2" Long Each. Pair R&L.

For 1964-1966 Chevrolet and GMC Pickup Trucks, these molded door seals are 163-1/2" long each and come as a pair for both the right and left sides. Designed to fit models like the Chevrolet C10, C20, C30, K10, K20, and GMC 1000, 1500, and 2500 series, these seals ensure a snug, weatherproof fit to keep out wind, rain, and road noise. Made by SUPERsoft, these seals are 30% softer and more durable than other brands, offering a long-lasting solution that won’t crack or wear prematurely. Unlike cheaper alternatives, they are crafted without accelerants or fillers, ensuring they maintain their shape and performance over time. Backed by a 30-year warranty, these seals provide peace of mind and reliable protection for your classic truck.

Features and Benefits
  • Keeps your truck's interior dry and quiet by sealing out water and noise.
  • Made from premium materials that resist aging and cracking.
  • Easy to install for a precise fit on both doors.

$96.49
• SALE $76.95
Select Color/Material Options  
1966 GMC 1500 Molded Door Weatherstrip Seals. 163-1/2" Long Each. Pair R&L.
1964-1965 GMC 1500 Molded Door Weatherstrip Seals. 163-1/2" Long Each. Pair R&L.

For 1964-1966 Chevrolet and GMC Pickup Trucks, these molded door seals are 163-1/2" long each and come as a pair for both the right and left sides. Designed to fit models like the Chevrolet C10, C20, C30, K10, K20, and GMC 1000, 1500, and 2500 series, these seals ensure a snug, weatherproof fit to keep out wind, rain, and road noise. Made by SUPERsoft, these seals are 30% softer and more durable than other brands, offering a long-lasting solution that won’t crack or wear prematurely. Unlike cheaper alternatives, they are crafted without accelerants or fillers, ensuring they maintain their shape and performance over time. Backed by a 30-year warranty, these seals provide peace of mind and reliable protection for your classic truck.

Features and Benefits
  • Keeps your truck's interior dry and quiet by sealing out water and noise.
  • Made from premium materials that resist aging and cracking.
  • Easy to install for a precise fit on both doors.

$96.49
• SALE $76.95
Select Color/Material Options  
1964-1965 GMC 1500 Molded Door Weatherstrip Seals. 163-1/2" Long Each. Pair R&L.
1966 GMC 2500 Molded Door Weatherstrip Seals. 163-1/2" Long Each. Pair R&L.

For 1964-1966 Chevrolet and GMC Pickup Trucks, these molded door seals are 163-1/2" long each and come as a pair for both the right and left sides. Designed to fit models like the Chevrolet C10, C20, C30, K10, K20, and GMC 1000, 1500, and 2500 series, these seals ensure a snug, weatherproof fit to keep out wind, rain, and road noise. Made by SUPERsoft, these seals are 30% softer and more durable than other brands, offering a long-lasting solution that won’t crack or wear prematurely. Unlike cheaper alternatives, they are crafted without accelerants or fillers, ensuring they maintain their shape and performance over time. Backed by a 30-year warranty, these seals provide peace of mind and reliable protection for your classic truck.

Features and Benefits
  • Keeps your truck's interior dry and quiet by sealing out water and noise.
  • Made from premium materials that resist aging and cracking.
  • Easy to install for a precise fit on both doors.

$96.49
• SALE $76.95
Select Color/Material Options  
1966 GMC 2500 Molded Door Weatherstrip Seals. 163-1/2" Long Each. Pair R&L.

(1091 Total Products)