GMC K35/K3500 Weatherstrip & Seals - OEM-Fit Door, Trunk & Window Seals

Stop leaks, drafts, and road noise in your GMC K35/K3500 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 K35/K3500—restoring a tight, quiet seal around your doors, trunk, hatch, and windows.

Our GMC K35/K3500 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 K35/K3500, 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 K35/K3500.

1973-1974 GMC K35/K3500 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
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1973-1974 GMC K35/K3500 Upper Door Weatherstrip Seals, 73-77 GM Full Size Truck and SUV, Pair.
1967 GMC K35/K3500 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
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1967 GMC K35/K3500 Flocked Glass Run Channel.
1974 GMC K35/K3500 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
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1974 GMC K35/K3500 Rear Cargo Door Weatherstrip Seal. RH (Passenger's Side).
1967-1972 GMC K35/K3500 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
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1967-1972 GMC K35/K3500 Molded Door Weatherstrip Seals with Mitered Corners. 166-1/2" Long.
1971-1972 GMC K35/K3500 Windshield Weatherstrip Seal, '71-'72 Chevrolet & GMC C/K Series, with Trim Groove.

The VWS 7313-F by Metro Moulded Parts is a premium windshield seal designed to fit a wide range from the classic 1971-1972 Chevrolet and GMC C/K trucks and Suburbans, including models like the Chevrolet Blazer and GMC Jimmy. Known as a windshield gasket, windshield rubber, windshield molding, or windshield weatherstrip, this versatile product enhances both the aesthetic and performance of your vehicle. Featuring a groove to effortlessly accept trim and crafted from sturdy EPDM polymer, this seal promises to reduce drafts and road noise. This superior fit offers an enhanced driving experience by elevating sound insulation and stopping wind intrusion. Installation is straightforward—simply position the seal correctly for a snug fit. The durable construction ensures long-lasting performance, perfectly complementing classic vehicle restoration projects. Combining classic style with modern durability, this windshield seal elevates both look and functionality. Backed by Metro's platinum 30-year "No Hassle" warranty, you can trust this purchase will serve you without compromise. Discover peace of mind and seamless installation—buy the VWS 7313-F today and enhance your vehicle's charm and drive comfort.

Features and Benefits
  • Custom fit for 1967-1972 Chevy and GMC C/K Series Trucks, Suburbans, and select Blazer and Jimmy models, ensuring precise compatibility.
  • Features a molded groove to accommodate trim for a clean, professional appearance.
  • Improves cabin comfort by reducing drafts, road noise, and water leaks.
  • Made of premium EPDM polymer for long-lasting durability and resistance to aging or cracking.

$100.49
• SALE $80.95
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1971-1972 GMC K35/K3500 Windshield Weatherstrip Seal, '71-'72 Chevrolet & GMC C/K Series, with Trim Groove.

(20 Total Products)