Type 25 Heater Matrix Feed Pipe - Waterboxer Engines

This coolant matrix heater hose is a direct replacement for the front feed hose that connects to the heater matrix under the dashboard on all VW Type 25 (T3) Buses equipped with 1.9 and 2.1 Waterboxer engines.

Designed to handle the high-temperature and pressure demands of the Waterboxer cooling system, this hose ensures proper coolant flow from the engine to the front heater matrix, providing efficient cabin heating even in colder weather. A deteriorated or leaking hose can lead to poor heating performance and potential coolant loss — replacing it with this high-quality reproduction helps maintain both reliability and comfort.

Manufactured from durable reinforced rubber, this hose resists cracking, swelling, and softening caused by coolant and heat exposure. It’s designed to fit perfectly within the tight confines under the T25 dashboard and follows the factory routing for an easy installation.

Fitment:

• VW Type 25 (T3) 1983–1992

• Engines: 1.9 Waterboxer (DG, DF, DH) & 2.1 Waterboxer (DJ, MV, SR, SS)

• Location: Front feed hose at heater matrix end (under dashboard)

Fitting Notes:
For best results, check the return hose from the heater matrix at the same time and replace if showing signs of wear or leakage. New hose clips or clamps are also recommended when fitting.