Dodge B300 Weatherstrip & Seals - OEM-Fit Door, Trunk & Window Seals

Stop leaks, drafts, and road noise in your Dodge B300 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 Dodge B300—restoring a tight, quiet seal around your doors, trunk, hatch, and windows.

Our Dodge B300 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 Dodge B300, 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 Dodge B300.

1979 Dodge B300 Window Sweeper Kit.

Window Sweeper Kit. Fits '71-'79 Dodge B-series and '74-'79 Plymouth PB-series full size vans. 4-piece kit includes both left-side and right-side inner and outer sweepers. Set. R&L.

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

$96.99
• SALE $77.95
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1979 Dodge B300 Window Sweeper Kit.
1975-1977 Dodge B300 Rear Cargo Door Weatherstrip Seal. Left-Hand Side.

This rear cargo door seal is designed for Dodge B-Series vans (B100/B200/B300) from 1971 to 1977 and Plymouth PB-Series vans (PB100/PB200/PB300) from 1974 to 1977, specifically for the left-hand side. Replacing OEM# 2956359, this seal ensures a snug fit to keep out water, dust, and noise, enhancing the comfort and durability of your van. Made by SUPERsoft, it is 30% softer and more durable than other brands, providing a long-lasting solution that resists aging and cracking. Unlike cheaper alternatives, it is crafted without accelerants or fillers, ensuring it maintains its integrity over time. This seal is easy to install, fitting securely into place to restore the functionality of your rear cargo door. Backed by a 30-year warranty from SUPERsoft, you can trust in its quality and performance for decades.

Features and Benefits
  • Keeps water, dust, and noise out for a quieter ride.
  • Made with premium materials for long-lasting durability.
  • Easy to install for a secure and reliable fit.

$105.49
• SALE $84.95
Select Color/Material Options  
1975-1977 Dodge B300 Rear Cargo Door Weatherstrip Seal. Left-Hand Side.
1975-1977 Dodge B300 Side Cargo Door Weatherstrip Seal. Left-Hand Weatherstrip Seal.

Designed for Dodge B-Series vans (B100/B200/B300) from 1971 to 1977 and Plymouth PB-Series vans (PB100/PB200/PB300) from 1974 to 1977, this side cargo door seal fits the left-hand side and replaces OEM# 2956357. Crafted by SUPERsoft, this seal is 30% softer and more durable than other brands, ensuring a snug fit and long-lasting performance. Its high-quality rubber construction avoids the use of accelerants or cheap fillers, preventing premature aging or cracking. This seal is specifically engineered to keep water, dust, and noise out, maintaining a quiet and dry interior for your van. Installation is straightforward, as the seal is designed to fit perfectly into the original groove, providing a secure and reliable seal. Backed by a 30-year warranty from SUPERsoft, this part guarantees peace of mind and exceptional durability.

Features and Benefits
  • Keeps water, dust, and noise out for a quieter ride.
  • Made with premium rubber for long-lasting performance.
  • Easy to install with a precise fit for the left-hand side.

$121.99
• SALE $97.95
Select Color/Material Options  
1975-1977 Dodge B300 Side Cargo Door Weatherstrip Seal. Left-Hand Weatherstrip Seal.
1979 Dodge B300 Window Sweepers and Glass Run Window Channels.

Window Sweepers and Glass Run Window Channels. Fits '71-'79 Dodge B-series and '74-'79 Plymouth PB-series full size vans. 8-piece kit includes both left-side and right-side inner and outer window sweepers and front upper and division bar glass run window channels. Combines WC 4300-01 and WC 4300-02. Set. R&L.

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

$129.49
• SALE $103.95
Select Color/Material Options  
1979 Dodge B300 Window Sweepers and Glass Run Window Channels.
1971-1980 Dodge B300 Single Rear Cargo Door Weatherstrip Seal Fits 1971-97 Full Size Dodge and Plymouth Vans.

This cargo door weatherstrip is designed specifically for 1971–1997 Dodge B-Series and Plymouth PB-Series Vans with the single rear cargo door. Manufactured from Metro’s exclusive SUPERsoft Sponge¢ EPDM rubber, it provides an exceptional weather-tight seal that keeps out wind, dust, and moisture while preserving your van’s interior comfort. The precision-engineered microcell structure allows for consistent compression, ensuring the door closes securely without excessive force. Each seal is faithfully reproduced from the original factory profile for a perfect fit and includes mounting clips for easy installation (clips are included but not pre-installed). Proudly made in the USA, this is the first aftermarket cargo door seal available for these vans—offering a long-awaited solution for restorers and enthusiasts. Backed by Metro’s 30-year warranty, this durable seal is built to perform and last for decades.

Features and Benefits
  • Easy installation with integrated clips for a secure fit.
  • Keeps water, wind, and noise out for a quieter ride.
  • Made with premium materials to resist aging and cracking.

$130.99
• SALE $104.95
Select Color/Material Options  
1971-1980 Dodge B300 Single Rear Cargo Door Weatherstrip Seal Fits 1971-97 Full Size Dodge and Plymouth Vans.

(28 Total Products)