Type 25 Sliding Door Nylon Guide (Top Runner) - 1979-85

This nylon sliding door guide block is fitted to the upper section of the sliding door on early Volkswagen Type 25 (T3) models. It plays a key role in guiding and stabilising the door as it opens and closes, ensuring smooth movement along the upper track.

Over time, the original nylon block wears down due to constant use and friction. When worn, it commonly causes issues such as stiff operation, poor alignment, or difficulty opening and closing the sliding door. In many cases, this small component is the main cause of sliding door problems on early T25 models.

Replacing the guide block restores proper alignment and smooth operation, preventing unnecessary strain on the rest of the sliding door mechanism. It is a simple but highly effective fix, ideal for maintenance or restoration of early vans.

Manufactured from durable nylon, this block provides low-friction movement while maintaining strength and longevity in daily use.

Product details:
Material: Nylon
Fitting Position: Upper sliding door mechanism

Fitment summary:
VW Transporter T25 (T3) 1979–07/1985 – all models with sliding side door (early type)

Other parts you may need:
Sliding door rollers, lower guide blocks, centre hinge components, door track covers, and lubrication for full mechanism servicing.