T2,T25,T4 Gearbox Flange Cup Seals - 1968-94 - Urethane

These polyurethane gearbox output flange end cap seals are high-quality replacements designed to fit the gearbox output flanges on Volkswagen Baywindow Buses (1968–1979), Type 25 / T3 Buses (1979–1992), and T4 Transporters up to 1994. With a 45mm outer diameter, these seals are a direct-fit solution for keeping dirt and moisture out of the gearbox flange cavity, protecting the splines and helping prevent premature wear.

Unlike traditional rubber seals that easily flatten, degrade or tear, these upgraded polyurethane seals are built for durability, resisting oil, heat, and age-related cracking. They maintain a tight seal over time and are ideal for both standard road use and high-stress conditions like off-roading or camper van conversions.

They are sold as a pair, covering both output flanges on the gearbox.

Function and Benefits:

Installed inside the output flange, these caps help:

• Seal the end of the gearbox flange

• Prevent ingress of debris, moisture, and oil

• Extend the lifespan of driveshaft and gearbox components

• Eliminate the risk of deformation or tearing seen with standard rubber seals

They’re especially valuable during gearbox rebuilds, CV joint servicing, or preventative maintenance on classic VW models.

Compatibility:

• VW Baywindow Bus (1968–1979)

• VW T25 / T3 (1979–1992)

• VW T4 (up to 1994)

Note: Check outer diameter (OD) of flange recess to confirm fitment: 45mm OD