The VW T25 Transporter 1985-1992 Water boxer Coolant Header tank by FOC Parts is a classic part made of durable plastic. This Coolant Expansion Tank comes with a cap included, and has a reference OE/OEM number of 025121405B. It is designed to fit 1.9 and 2.1 DG DJ engines, providing a reliable solution for maintaining the engine cooling system in VW T25 Transporter models from 1985 to 1992. Ideal for those looking to replace or upgrade their coolant header tank, this product offers a high-quality and authentic solution for vehicle maintenance.