GMC K15/K1500 Weatherstrip & Seals - OEM-Fit Door, Trunk & Window Seals

Stop leaks, drafts, and road noise in your GMC K15/K1500 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 K15/K1500—restoring a tight, quiet seal around your doors, trunk, hatch, and windows.

Our GMC K15/K1500 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 K15/K1500, 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 K15/K1500.

1973-1974 GMC K15/K1500 Upper Door Weatherstrip Seals, 73-77 GM Full Size Truck and SUV, Pair.

Designed for 1973-1977 GM full-size trucks and SUVs, these upper door seals (OEM #14013791) are crafted to provide a precise fit and exceptional durability. Made from high-quality EPDM polymer, they are built to withstand harsh weather conditions while effectively reducing drafts and road noise. These seals are engineered to restore the original sealing profile, ensuring a snug fit that keeps your cabin quiet and comfortable. Perfect for Chevrolet and GMC models like the C10, K10, Suburban, and Jimmy, these seals are an essential upgrade for maintaining your vehicle's integrity. With a straightforward installation process, they fit seamlessly onto the upper door frame, offering long-lasting performance. Backed by a 90-day hassle-free warranty, these seals are a reliable choice for restoring your truck or SUV.

Features and Benefits
  • Reduces drafts and road noise for a quieter ride.
  • Made from durable EPDM polymer for long-lasting use.
  • Restores the original sealing profile for a precise fit.
  • Easy installation ensures a hassle-free upgrade.

$60.49
• SALE $48.95
Select Color/Material Options  
1973-1974 GMC K15/K1500 Upper Door Weatherstrip Seals, 73-77 GM Full Size Truck and SUV, Pair.
1966-1967 GMC K15/K1500 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  
1966-1967 GMC K15/K1500 Flocked Glass Run Channel.
1974 GMC K15/K1500 Rear Cargo Door Weatherstrip Seal. RH (Passenger's Side).

For full-size vans, this rear cargo door seal fits the RH (passenger's side) and is designed for 1996 early design models. Crafted by SUPERsoft, this seal is 30% softer and more durable than other brands, ensuring a snug and reliable fit that prevents water, dust, and noise from entering your vehicle. Unlike other seals, it is made without accelerants or cheap fillers, which means it resists premature aging and cracking over time. This part is compatible with a wide range of vehicles, including Chevrolet and GMC vans and trucks from 1974 to 1996, such as the Chevrolet G10, G20, and G30 vans, as well as GMC G1500, G2500, and G3500 vans. Its flexible and durable construction makes installation straightforward, providing a tight seal around the cargo door for long-lasting performance. Backed by a 30-year warranty from SUPERsoft, this seal offers peace of mind and exceptional value for your restoration or repair project.

Features and Benefits
  • Provides a tight seal to keep out water, dust, and noise.
  • Made with 30% softer material for easier installation and durability.
  • Free from cheap fillers, ensuring long-lasting performance.

$83.49
• SALE $66.95
Select Color/Material Options  
1974 GMC K15/K1500 Rear Cargo Door Weatherstrip Seal. RH (Passenger's Side).
1966 GMC K15/K1500 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 K15/K1500 Molded Door Weatherstrip Seals. 163-1/2" Long Each. Pair R&L.
1967-1972 GMC K15/K1500 Molded Door Weatherstrip Seals with Mitered Corners. 166-1/2" Long.

For 1967-1972 Chevrolet and GMC Pickup Trucks, these molded door seals with mitered corners are 166-1/2" long each and come as a pair for both the driver and passenger sides. Designed to fit models like the Chevrolet C10, C20, C30, K10, K20, K30, and GMC C15/C1500 through K35/K3500, these seals ensure a snug, weatherproof fit to keep out wind, rain, and road noise. Crafted by SUPERsoft, these seals are 30% softer and more durable than other brands, offering a long-lasting, tight seal without the use of cheap fillers or accelerants that can cause premature aging. The seals are easy to install, molding perfectly to the door frame for a seamless look and reliable performance. Backed by a 30-year warranty, these seals provide peace of mind and exceptional value for your classic truck restoration.

Features and Benefits
  • Keeps out wind, rain, and road noise for a quieter ride.
  • Made with 30% softer material for a better fit and durability.
  • Easy installation with molded mitered corners for a precise fit.

$96.49
• SALE $76.95
Select Color/Material Options  
1967-1972 GMC K15/K1500 Molded Door Weatherstrip Seals with Mitered Corners. 166-1/2" Long.

(23 Total Products)