T4 Cab Door Check Strap Seal

This cab door check strap seal cover is designed to protect and seal the opening where the door check strap passes through the A-pillar on the Volkswagen Transporter T4. It helps prevent water, dirt, and road debris from entering the door cavity and cab structure, while also giving a clean, finished appearance to the door hinge area.

The check strap itself controls how far the door opens and prevents it from overextending. As the strap moves in and out during normal use, this seal cover acts as a flexible barrier, sealing the aperture while allowing smooth movement. Over time, original covers can crack, split, or go missing entirely, which can lead to water ingress, corrosion inside the door frame, and increased cabin noise.

Replacing this seal cover is a simple but important maintenance job, especially on working vans where doors are used frequently. It restores proper sealing and helps protect internal components from long-term damage.

For best results, inspect the condition of the door check strap, mounting bolts, and surrounding seals when fitting. If the strap is worn or loose, replacing it alongside the seal cover will ensure correct door operation and longevity.

Vehicle Fitment

Volkswagen Transporter T4 (1991-2003)
All models – Bus, Van, Platform/Chassis