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

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

Our GMC 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 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 K3500.

1979-1980 GMC K3500 Driver & Passenger Side Vertical Run Channel

OEM-replacement vertical run channel for Chevrolet / GMC. Precision-molded from EPDM rubber to resist UV, heat, ozone, and moisture — restoring the factory seal and eliminating wind noise, water leaks, and drafts.

Replaces GM: 369558

$28.39
• SALE $19.95
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1979-1980 GMC K3500 Driver & Passenger Side Vertical Run Channel
1979-1986 GMC K3500 Driver & Passenger Side Complete Glass Run Window Channel

OEM-replacement complete glass run window channel for Chevrolet / GMC. Precision-molded from EPDM rubber to resist UV, heat, ozone, and moisture — restoring the factory seal and eliminating wind noise, water leaks, and drafts.

Replaces GM: 14027777, 14027778

1988-2000 GMC K3500 Driver & Passenger Side Belt Weatherstrip Kit

OEM-replacement belt weatherstrip kit for Chevrolet / GMC. Precision-molded from EPDM rubber to resist UV, heat, ozone, and moisture — restoring the factory seal and eliminating wind noise, water leaks, and drafts.

Replaces GM: 15704112, 15735502

$20.17
• SALE $13.95
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1988-2000 GMC K3500 Driver & Passenger Side Belt Weatherstrip Kit
1988-1994 GMC K3500 Glove Box Bumper. Each.

This glove box bumper is designed for cars and trucks, including models like the 1975-1977 Oldsmobile Cutlass Salon, 1978-1987 Buick Regal, 1978-1987 Chevrolet El Camino, and many more listed in the fitment details. Made by Metro Moulded Parts, this durable and long-lasting bumper is crafted to provide a snug fit and reliable cushioning for your glove box door, ensuring it closes smoothly and securely. Its compact, rounded design is built for easy installation, fitting seamlessly into the designated slot without hassle. This part is ideal for restoring functionality and maintaining the interior quality of your vehicle. Backed by Metro’s 30-year Platinum Warranty, you can trust in its quality and longevity.

Features and Benefits
  • Provides a secure and quiet glove box closure.
  • Made from durable materials for long-lasting performance.
  • Easy to install with a precise fit for listed vehicles.

$12.99
• SALE $10.95
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1988-1994 GMC K3500 Glove Box Bumper. Each.
1973-1974 GMC K3500 Brake Master Cylinder Cover Weatherstrip Seal. Fits 71-83 GM's.

This brake master cylinder cover seal is designed for 1971-1983 GM vehicles, ensuring a precise fit and reliable performance. Crafted from durable, high-quality rubber, this seal is engineered to prevent leaks and maintain a secure seal for your brake master cylinder, protecting it from dust, moisture, and debris. Its oval shape with dual recessed grooves is tailored to fit snugly into place, making installation straightforward and hassle-free. This part is essential for maintaining the integrity of your braking system, ensuring consistent and safe operation. Backed by a 90-day warranty, you can trust in its quality and performance.

Features and Benefits
  • Prevents leaks and protects the brake master cylinder.
  • Made from durable, high-quality rubber for long-lasting use.
  • Easy to install with a precise fit for 1971-1983 GM vehicles.

$48.99
• SALE $39.95
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1973-1974 GMC K3500 Brake Master Cylinder Cover Weatherstrip Seal. Fits 71-83 GM's.

(50 Total Products)