GMC G3500 Weatherstrip & Seals - OEM-Fit Door, Trunk & Window Seals

Stop leaks, drafts, and road noise in your GMC G3500 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 G3500—restoring a tight, quiet seal around your doors, trunk, hatch, and windows.

Our GMC G3500 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 G3500, 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 G3500.

1979-1996 GMC G3500 Side Sliding Door Weatherstrip Seal.

For full-size vans, this side sliding door seal measures 213-1/4" long 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 fit and long-lasting performance. It is made without accelerants or cheap fillers, which can cause premature aging or failure, making it a reliable choice for your vehicle. This seal fits a wide range of models, including Chevrolet G10, G20, and G30 vans from 1974 to 1996, as well as GMC G1500, G2500, and G3500 vans from the same years. Designed to keep out water, dust, and noise, it enhances the comfort and protection of your van's interior. Backed by a 30-year warranty from SUPERsoft, this seal offers peace of mind and exceptional value.

Features and Benefits
  • Keeps water, dust, and noise out for a quieter ride.
  • Made with durable, high-quality materials for long-lasting use.
  • Fits a wide range of Chevrolet and GMC full-size vans from 1974 to 1996.

$110.99
• SALE $88.95
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1979-1996 GMC G3500 Side Sliding Door Weatherstrip Seal.
1979-1980 GMC G3500 Windshield Weatherstrip Seal, 71-80 GM Full Size Van, Each.

Designed for GM full-size vans from 1971 to 1980, this windshield seal is a perfect fit for Chevrolet and GMC models like the G10, G20, and G30. Replacing OEM #3062392, this black gasket is crafted without a trim groove and is made from durable, ozone-resistant EPDM polymer for long-lasting performance. It is designed to be installed during glass replacement, with the seal placed on the body first, followed by the glass, and secured with a self-locking strip. This ensures a snug fit that reduces drafts and road noise while maintaining an accurate seal profile. Whether you're restoring your van or replacing a worn-out seal, this part is built to original specifications for a reliable fit and function. Backed by a 90-day warranty, it’s a dependable choice for your restoration or repair project.

Features and Benefits
  • Reduces drafts and road noise for a quieter ride.
  • Made from ozone-resistant EPDM polymer for durability.
  • Designed for easy installation during glass replacement.
  • Provides a precise fit for GM full-size vans from 1971 to 1980.

$122.49
• SALE $97.95
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1979-1980 GMC G3500 Windshield Weatherstrip Seal, 71-80 GM Full Size Van, Each.
1979-1996 GMC G3500 Rear Cargo Door Weatherstrip Seal. LH Portion (Driver's Side).

For full-size vans, this rear cargo door seal fits the LH (driver'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 fit and long-lasting performance. Unlike other seals, it is made without accelerants or cheap fillers, which can lead to premature aging or failure. This part is compatible with a wide range of vans, including Chevrolet G10, G20, G30, and GMC G15, G25, and G35 models from 1974 to 1996. The seal is engineered to keep out water, dust, and wind, providing a quiet and comfortable interior. Its flexible design makes installation straightforward, and it is built to withstand harsh weather conditions. Backed by a 30-year warranty from SUPERsoft, this seal offers peace of mind and exceptional value.

Features and Benefits
  • Keeps water, dust, and wind out for a quieter ride.
  • Made with durable, high-quality materials for long-lasting use.
  • Easy to install with a precise fit for full-size vans.

$132.49
• SALE $105.95
Select Color/Material Options  
1979-1996 GMC G3500 Rear Cargo Door Weatherstrip Seal. LH Portion (Driver's Side).
1979-1996 GMC G3500 Side Cargo Door Weatherstrip Seals.

For full-size vans, these side cargo door seals are designed for 1996 early design models and include both front and rear seals as a pair. Crafted by SUPERsoft, these seals are 30% softer and more durable than other brands, ensuring a snug, long-lasting fit. They are made without accelerants or cheap fillers, which prevents premature aging or cracking, making them a reliable choice for weatherproofing your van. These seals are compatible with 1978-1996 Chevrolet G10, G20, G30, and GMC G1500, G2500, G3500 vans, as well as 1996 Chevrolet Express and GMC Savana models. The seals are easy to install, fitting securely around the cargo door edges to block out water, dust, and noise, keeping your van interior protected and quiet. Backed by a 30-year warranty from SUPERsoft, you can trust in their quality and durability for years to come.

Features and Benefits
  • Keeps water, dust, and noise out of your van.
  • Made with durable, long-lasting materials.
  • Easy to install for a secure fit.

$170.99
• SALE $136.95
Select Color/Material Options  
1979-1996 GMC G3500 Side Cargo Door Weatherstrip Seals.
1979-1996 GMC G3500 Rear Cargo Door Weatherstrip Seals.

For full-size vans, these rear cargo door seals are designed to fit 1996 early design models and include both left and right seals as a pair. Crafted by SUPERsoft, these seals are 30% softer and more durable than other brands, ensuring a snug, long-lasting fit that effectively keeps out water, dust, and noise. Unlike other seals, they are made without accelerants or cheap fillers, which can cause premature aging or failure. These seals are tailored for 1974-1996 Chevrolet and GMC G-Series vans, including G10, G20, G30, and their GMC equivalents like G1500, G2500, and G3500. Installation is straightforward, as the seals are precision-molded to fit the rear cargo doors perfectly, providing a clean and secure seal. Backed by a 30-year warranty from SUPERsoft, you can trust in their durability and performance for decades to come.

Features and Benefits
  • Keeps water, dust, and noise out of your van.
  • Made with premium materials for long-lasting durability.
  • Easy installation with a precise fit for rear cargo doors.

$194.99
• SALE $155.95
Select Color/Material Options  
1979-1996 GMC G3500 Rear Cargo Door Weatherstrip Seals.

(33 Total Products)