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 Weatherstrip Seal Kit, for Models with Sliding Side Doors.

Designed for vans with sliding side doors, this seal kit is a perfect fit for 1978-1996 Chevrolet and GMC G-Series Vans, including G10, G20, G30, G1500, G2500, and G3500 models. This basic kit includes seals for the front door (LM 13-V), rear door (LM 13-VR), and side slider (LM 13-VS), ensuring a snug and weatherproof fit. Crafted from high-quality materials, these seals are built to last, providing excellent protection against water, wind, and noise. The seals are flexible and easy to install, conforming seamlessly to the contours of your van’s doors for a factory-like finish. Backed by SuperSoft’s 30-year warranty, this kit offers long-term peace of mind, making it a reliable choice for restoring or maintaining your van.

Features and Benefits
  • Protects against water leaks and drafts.
  • Reduces road noise for a quieter ride.
  • Easy installation with a precise fit.

$392.99
• SALE $313.95
Select Color/Material Options  
1979-1996 GMC G3500 Weatherstrip Seal Kit, for Models with Sliding Side Doors.
1979-1994 GMC G3500 Window Channel and Sweeper Kit. 6-Piece Kit.

Window Channel and Sweeper Kit. 6-Piece Kit

Features and Benefits
  • Superior form and function
  • Accurate seal profiles

$403.99
• SALE $322.95
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1979-1994 GMC G3500 Window Channel and Sweeper Kit. 6-Piece Kit.
1979-1996 GMC G3500 Weatherstrip Seal Kit, for Models with Side Cargo Doors.

Designed for vans with side cargo doors, this seal kit is a perfect fit for 1974-1996 Chevrolet and GMC G-Series vans, including G10, G20, G30, and their GMC counterparts like G1500, G2500, and G3500. This basic kit includes seals for the front doors (LM 13-V), rear doors (LM 13-VR), and side cargo doors (LM 13-VC), ensuring a snug and weatherproof fit. Crafted from high-quality materials, these seals are built to last, providing excellent protection against water, wind, and noise. The seals are designed for easy installation, fitting seamlessly into the designated areas to restore your van's original weatherproofing and comfort. Backed by a 30-year warranty from SuperSoft, you can trust in the durability and performance of this kit for decades to come.

Features and Benefits
  • Protects against water, wind, and noise for a quieter ride.
  • Includes seals for front, rear, and side cargo doors for complete coverage.
  • Easy-to-install design ensures a hassle-free fit.

$451.49
• SALE $360.95
Select Color/Material Options  
1979-1996 GMC G3500 Weatherstrip Seal Kit, for Models with Side Cargo Doors.

(33 Total Products)