HOUSING WITH SEAL U4814 4816 4851 4

The Webasto 5000153A is a revised seal kit designed for Webasto coolant circulation pumps, specifically models U4814, U4816, U4817, and U4851. This kit addresses wear and tear on the internal seals, which are vital for maintaining proper fluid circulation and preventing coolant leaks within the vehicle's heating system.

This particular kit (P/N 5000153A) is a complete solution for pump housing and seal replacement. It includes all necessary components, such as the pump impeller, pump housing base with integrated axial seal, a new sliding seal ring, and associated hardware and seals. The inclusion of lubricating oil and a detailed service information bulletin ensures that technicians or experienced DIYers can perform a thorough and correct repair.

The primary function of this kit is to restore the sealing capabilities of the circulation pump, which is crucial for the efficient operation of Webasto's independent heating solutions in various vehicles, including buses and trucks. By replacing worn seals, the kit prevents coolant loss and helps maintain consistent heating performance.