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

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

Our Chevrolet 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 Chevrolet , 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 Chevrolet .

1967-1972 Chevy C20 Heater Box to Firewall Gasket. 6-3/4" O.D., 4-3/4" I.D.

Designed for 1967-1972 Chevrolet and GMC Pickup Trucks, this heater box-to-firewall gasket ensures a precise fit with its 6-3/4" outer diameter and 4-3/4" inner diameter. Crafted by Metro Moulded Parts, this gasket is made using over 50 tons of pressure, delivering exceptional definition and detail for a snug and reliable seal. It is specifically engineered to prevent air and moisture leaks where the heater box meets the firewall, enhancing the efficiency of your vehicle's heating system. This gasket fits a wide range of models, including Chevrolet C10, C20, C30, K10, K20, and K30 trucks, as well as GMC C15/C1500, C25/C2500, C35/C3500, K15/K1500, K25/K2500, and K35/K3500 trucks from 1967 to 1972. Backed by Metro's 30-year warranty, this part offers long-lasting performance and peace of mind.

Features and Benefits
  • Provides a tight seal to prevent air and moisture leaks.
  • Enhances heating system efficiency by maintaining proper airflow.
  • Built with high-pressure molding for exact fit and durability.

$36.99
• SALE $29.95
Select Color/Material Options  
1967-1972 Chevy C20 Heater Box to Firewall Gasket. 6-3/4" O.D., 4-3/4" I.D.
1967-1972 Chevy C30 Heater Box to Firewall Gasket. 6-3/4" O.D., 4-3/4" I.D.

Designed for 1967-1972 Chevrolet and GMC Pickup Trucks, this heater box-to-firewall gasket ensures a precise fit with its 6-3/4" outer diameter and 4-3/4" inner diameter. Crafted by Metro Moulded Parts, this gasket is made using over 50 tons of pressure, delivering exceptional definition and detail for a snug and reliable seal. It is specifically engineered to prevent air and moisture leaks where the heater box meets the firewall, enhancing the efficiency of your vehicle's heating system. This gasket fits a wide range of models, including Chevrolet C10, C20, C30, K10, K20, and K30 trucks, as well as GMC C15/C1500, C25/C2500, C35/C3500, K15/K1500, K25/K2500, and K35/K3500 trucks from 1967 to 1972. Backed by Metro's 30-year warranty, this part offers long-lasting performance and peace of mind.

Features and Benefits
  • Provides a tight seal to prevent air and moisture leaks.
  • Enhances heating system efficiency by maintaining proper airflow.
  • Built with high-pressure molding for exact fit and durability.

$36.99
• SALE $29.95
Select Color/Material Options  
1967-1972 Chevy C30 Heater Box to Firewall Gasket. 6-3/4" O.D., 4-3/4" I.D.
1967-1972 Chevy K10 Heater Box to Firewall Gasket. 6-3/4" O.D., 4-3/4" I.D.

Designed for 1967-1972 Chevrolet and GMC Pickup Trucks, this heater box-to-firewall gasket ensures a precise fit with its 6-3/4" outer diameter and 4-3/4" inner diameter. Crafted by Metro Moulded Parts, this gasket is made using over 50 tons of pressure, delivering exceptional definition and detail for a snug and reliable seal. It is specifically engineered to prevent air and moisture leaks where the heater box meets the firewall, enhancing the efficiency of your vehicle's heating system. This gasket fits a wide range of models, including Chevrolet C10, C20, C30, K10, K20, and K30 trucks, as well as GMC C15/C1500, C25/C2500, C35/C3500, K15/K1500, K25/K2500, and K35/K3500 trucks from 1967 to 1972. Backed by Metro's 30-year warranty, this part offers long-lasting performance and peace of mind.

Features and Benefits
  • Provides a tight seal to prevent air and moisture leaks.
  • Enhances heating system efficiency by maintaining proper airflow.
  • Built with high-pressure molding for exact fit and durability.

$36.99
• SALE $29.95
Select Color/Material Options  
1967-1972 Chevy K10 Heater Box to Firewall Gasket. 6-3/4" O.D., 4-3/4" I.D.
1967-1972 Chevy K20 Heater Box to Firewall Gasket. 6-3/4" O.D., 4-3/4" I.D.

Designed for 1967-1972 Chevrolet and GMC Pickup Trucks, this heater box-to-firewall gasket ensures a precise fit with its 6-3/4" outer diameter and 4-3/4" inner diameter. Crafted by Metro Moulded Parts, this gasket is made using over 50 tons of pressure, delivering exceptional definition and detail for a snug and reliable seal. It is specifically engineered to prevent air and moisture leaks where the heater box meets the firewall, enhancing the efficiency of your vehicle's heating system. This gasket fits a wide range of models, including Chevrolet C10, C20, C30, K10, K20, and K30 trucks, as well as GMC C15/C1500, C25/C2500, C35/C3500, K15/K1500, K25/K2500, and K35/K3500 trucks from 1967 to 1972. Backed by Metro's 30-year warranty, this part offers long-lasting performance and peace of mind.

Features and Benefits
  • Provides a tight seal to prevent air and moisture leaks.
  • Enhances heating system efficiency by maintaining proper airflow.
  • Built with high-pressure molding for exact fit and durability.

$36.99
• SALE $29.95
Select Color/Material Options  
1967-1972 Chevy K20 Heater Box to Firewall Gasket. 6-3/4" O.D., 4-3/4" I.D.
1968-1972 Chevy K30 Heater Box to Firewall Gasket. 6-3/4" O.D., 4-3/4" I.D.

Designed for 1967-1972 Chevrolet and GMC Pickup Trucks, this heater box-to-firewall gasket ensures a precise fit with its 6-3/4" outer diameter and 4-3/4" inner diameter. Crafted by Metro Moulded Parts, this gasket is made using over 50 tons of pressure, delivering exceptional definition and detail for a snug and reliable seal. It is specifically engineered to prevent air and moisture leaks where the heater box meets the firewall, enhancing the efficiency of your vehicle's heating system. This gasket fits a wide range of models, including Chevrolet C10, C20, C30, K10, K20, and K30 trucks, as well as GMC C15/C1500, C25/C2500, C35/C3500, K15/K1500, K25/K2500, and K35/K3500 trucks from 1967 to 1972. Backed by Metro's 30-year warranty, this part offers long-lasting performance and peace of mind.

Features and Benefits
  • Provides a tight seal to prevent air and moisture leaks.
  • Enhances heating system efficiency by maintaining proper airflow.
  • Built with high-pressure molding for exact fit and durability.

$36.99
• SALE $29.95
Select Color/Material Options  
1968-1972 Chevy K30 Heater Box to Firewall Gasket. 6-3/4" O.D., 4-3/4" I.D.

(3973 Total Products)