GMC 1500 Weatherstrip & Seals - OEM-Fit Door, Trunk & Window Seals

Stop leaks, drafts, and road noise in your GMC 1500 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 1500—restoring a tight, quiet seal around your doors, trunk, hatch, and windows.

Our GMC 1500 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 1500, 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 1500.

1966 GMC 1500 Flocked Glass Run Channel.

This flocked glass run channel, measuring 96 inches, is designed for vehicles with framed side glass, ensuring a snug and precise fit. Crafted by Metro Moulded Parts, it features accurate seal profiles that help keep your vehicle’s interior protected from the elements while reducing noise and vibration. This part is compatible with a wide range of 1965-1967 models, including Chevrolet C10, C20, and C30 Pickup Trucks, Chrysler 300, Imperial, and Newport Cars, Dodge Dart, Coronet, and Monaco Cars, GMC 1000 and 1500 Series Trucks, and Plymouth Barracuda, Belvedere, and Fury Cars, among others. Its flocked surface ensures smooth window operation, while the durable construction guarantees long-lasting performance. Backed by a 90-day warranty, this glass run channel is a reliable choice for restoring or maintaining your classic vehicle.

Features and Benefits
  • Provides a tight seal to keep out wind and water.
  • Reduces noise and vibration for a quieter ride.
  • Flocked surface ensures smooth window movement.
  • Durable material offers long-lasting performance.

$82.49
• SALE $65.95
Select Color/Material Options  
1966 GMC 1500 Flocked Glass Run Channel.
1965 GMC 1500 Flocked Glass Run Channel.

This flocked glass run channel, measuring 96 inches, is designed for vehicles with framed side glass, ensuring a snug and precise fit. Crafted by Metro Moulded Parts, it features accurate seal profiles that help keep your vehicle’s interior protected from the elements while reducing noise and vibration. This part is compatible with a wide range of 1965-1967 models, including Chevrolet C10, C20, and C30 Pickup Trucks, Chrysler 300, Imperial, and Newport Cars, Dodge Dart, Coronet, and Monaco Cars, GMC 1000 and 1500 Series Trucks, and Plymouth Barracuda, Belvedere, and Fury Cars, among others. Its flocked surface ensures smooth window operation, while the durable construction guarantees long-lasting performance. Backed by a 90-day warranty, this glass run channel is a reliable choice for restoring or maintaining your classic vehicle.

Features and Benefits
  • Provides a tight seal to keep out wind and water.
  • Reduces noise and vibration for a quieter ride.
  • Flocked surface ensures smooth window movement.
  • Durable material offers long-lasting performance.

$82.49
• SALE $65.95
Select Color/Material Options  
1965 GMC 1500 Flocked Glass Run Channel.
1966 GMC 1500 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 1500 Rear Window Weatherstrip Seal, 55-66 GM Full Size Truck W/ Chrome Lockstrip.
1960-1965 GMC 1500 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  
1960-1965 GMC 1500 Rear Window Weatherstrip Seal, 55-66 GM Full Size Truck W/ Chrome Lockstrip.
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.

(30 Total Products)