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

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

Our GMC 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 , 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 .

1967-1972 GMC C25/C2500 Rear Window Weatherstrip Seal, '67-'72 Chevrolet & GMC C/K, Large Window, No Trim Groove.

For 1967-1972 Chevrolet and GMC C/K series trucks with a large rear window, this rear window seal is a perfect fit, replacing OEM part #3940758. Designed without a trim groove, it ensures a clean and seamless look for your truck. Made from durable EPDM polymer, this seal is built to last, effectively reducing drafts and road noise while keeping the elements out. Its accurate seal profile guarantees a snug fit, making installation straightforward and hassle-free. This part fits a wide range of models, including Chevrolet C10, C20, C30, K10, and K20 trucks, as well as GMC C15/C1500, C25/C2500, C35/C3500, K15/K1500, K25/K2500, and K35/K3500 trucks and Suburbans from 1967 to 1972. Backed by a 90-day warranty, this seal is a reliable choice for restoring your truck’s comfort and functionality.

Features and Benefits
  • Reduces drafts and road noise for a quieter ride.
  • Made from durable EPDM polymer for long-lasting performance.
  • Accurate seal profile ensures a snug and secure fit.
  • Designed for easy installation without a trim groove.

$103.49
• SALE $82.95
Select Color/Material Options  
1967-1972 GMC C25/C2500 Rear Window Weatherstrip Seal, '67-'72 Chevrolet & GMC C/K, Large Window, No Trim Groove.
1967-1972 GMC C25/C2500 Suburban Rear Window Weatherstrip Seal, '67-'72 Chevrolet & GMC C/K, Large Window, No Trim Groove.

For 1967-1972 Chevrolet and GMC C/K series trucks with a large rear window, this rear window seal is a perfect fit, replacing OEM part #3940758. Designed without a trim groove, it ensures a clean and seamless look for your truck. Made from durable EPDM polymer, this seal is built to last, effectively reducing drafts and road noise while keeping the elements out. Its accurate seal profile guarantees a snug fit, making installation straightforward and hassle-free. This part fits a wide range of models, including Chevrolet C10, C20, C30, K10, and K20 trucks, as well as GMC C15/C1500, C25/C2500, C35/C3500, K15/K1500, K25/K2500, and K35/K3500 trucks and Suburbans from 1967 to 1972. Backed by a 90-day warranty, this seal is a reliable choice for restoring your truck’s comfort and functionality.

Features and Benefits
  • Reduces drafts and road noise for a quieter ride.
  • Made from durable EPDM polymer for long-lasting performance.
  • Accurate seal profile ensures a snug and secure fit.
  • Designed for easy installation without a trim groove.

$103.49
• SALE $82.95
Select Color/Material Options  
1967-1972 GMC C25/C2500 Suburban Rear Window Weatherstrip Seal, '67-'72 Chevrolet & GMC C/K, Large Window, No Trim Groove.
1967-1972 GMC C35/C3500 Rear Window Weatherstrip Seal, '67-'72 Chevrolet & GMC C/K, Large Window, No Trim Groove.

For 1967-1972 Chevrolet and GMC C/K series trucks with a large rear window, this rear window seal is a perfect fit, replacing OEM part #3940758. Designed without a trim groove, it ensures a clean and seamless look for your truck. Made from durable EPDM polymer, this seal is built to last, effectively reducing drafts and road noise while keeping the elements out. Its accurate seal profile guarantees a snug fit, making installation straightforward and hassle-free. This part fits a wide range of models, including Chevrolet C10, C20, C30, K10, and K20 trucks, as well as GMC C15/C1500, C25/C2500, C35/C3500, K15/K1500, K25/K2500, and K35/K3500 trucks and Suburbans from 1967 to 1972. Backed by a 90-day warranty, this seal is a reliable choice for restoring your truck’s comfort and functionality.

Features and Benefits
  • Reduces drafts and road noise for a quieter ride.
  • Made from durable EPDM polymer for long-lasting performance.
  • Accurate seal profile ensures a snug and secure fit.
  • Designed for easy installation without a trim groove.

$103.49
• SALE $82.95
Select Color/Material Options  
1967-1972 GMC C35/C3500 Rear Window Weatherstrip Seal, '67-'72 Chevrolet & GMC C/K, Large Window, No Trim Groove.
1967-1972 GMC K15/K1500 Rear Window Weatherstrip Seal, '67-'72 Chevrolet & GMC C/K, Large Window, No Trim Groove.

For 1967-1972 Chevrolet and GMC C/K series trucks with a large rear window, this rear window seal is a perfect fit, replacing OEM part #3940758. Designed without a trim groove, it ensures a clean and seamless look for your truck. Made from durable EPDM polymer, this seal is built to last, effectively reducing drafts and road noise while keeping the elements out. Its accurate seal profile guarantees a snug fit, making installation straightforward and hassle-free. This part fits a wide range of models, including Chevrolet C10, C20, C30, K10, and K20 trucks, as well as GMC C15/C1500, C25/C2500, C35/C3500, K15/K1500, K25/K2500, and K35/K3500 trucks and Suburbans from 1967 to 1972. Backed by a 90-day warranty, this seal is a reliable choice for restoring your truck’s comfort and functionality.

Features and Benefits
  • Reduces drafts and road noise for a quieter ride.
  • Made from durable EPDM polymer for long-lasting performance.
  • Accurate seal profile ensures a snug and secure fit.
  • Designed for easy installation without a trim groove.

$103.49
• SALE $82.95
Select Color/Material Options  
1967-1972 GMC K15/K1500 Rear Window Weatherstrip Seal, '67-'72 Chevrolet & GMC C/K, Large Window, No Trim Groove.
1967-1972 GMC K15/K1500 Suburban Rear Window Weatherstrip Seal, '67-'72 Chevrolet & GMC C/K, Large Window, No Trim Groove.

For 1967-1972 Chevrolet and GMC C/K series trucks with a large rear window, this rear window seal is a perfect fit, replacing OEM part #3940758. Designed without a trim groove, it ensures a clean and seamless look for your truck. Made from durable EPDM polymer, this seal is built to last, effectively reducing drafts and road noise while keeping the elements out. Its accurate seal profile guarantees a snug fit, making installation straightforward and hassle-free. This part fits a wide range of models, including Chevrolet C10, C20, C30, K10, and K20 trucks, as well as GMC C15/C1500, C25/C2500, C35/C3500, K15/K1500, K25/K2500, and K35/K3500 trucks and Suburbans from 1967 to 1972. Backed by a 90-day warranty, this seal is a reliable choice for restoring your truck’s comfort and functionality.

Features and Benefits
  • Reduces drafts and road noise for a quieter ride.
  • Made from durable EPDM polymer for long-lasting performance.
  • Accurate seal profile ensures a snug and secure fit.
  • Designed for easy installation without a trim groove.

$103.49
• SALE $82.95
Select Color/Material Options  
1967-1972 GMC K15/K1500 Suburban Rear Window Weatherstrip Seal, '67-'72 Chevrolet & GMC C/K, Large Window, No Trim Groove.

(1091 Total Products)