US Motor Works US8990 Engine Water Pump

Engine Water Pump for BMW Applications

US Motor Works US8990 is an engine water pump for select BMW models from the 2002-2006 model years. It includes installation sealing devices and is built for direct replacement service on covered applications.

Key Features

• Engine water pump for cooling system service
• Includes installation sealing devices
• Direct-fit replacement for select BMW X5, 545i, 645Ci, 745i, and 745Li applications
• Cross-references Dorman - HELP 42314 for the same application
• Part number: US8990

Detailed Description

US Motor Works US8990 is an engine water pump for BMW cooling system repair and maintenance. It fits 2004-2006 BMW X5, 2004-2005 BMW 545i, 2004-2005 BMW 645Ci, 2005 BMW 745i, 2002-2005 BMW 745Li, and 2004 BMW 745i from 10/2003. This part also cross-references Dorman - HELP 42314 for the same application. The US8990 water pump is identified by part number US8990 and is intended for vehicles that require a replacement pump with sealing devices included.

Common Repair Symptoms

• Coolant leakage at the water pump housing
• Overheating from reduced coolant circulation
• Noise from a worn pump bearing or impeller
• Temperature fluctuations during engine operation
• Cooling system service on BMW X5, 545i, 645Ci, 745i, or 745Li models

Installation Notes and Tips

Verify engine code, production date, and cooling system layout before installation. Clean the mounting surface thoroughly and replace any damaged sealing surfaces during service. Confirm fitment for the exact BMW model and production window, especially for the 2004 BMW 745i from 10/2003 application.

Quality Assurance

US Motor Works supplies replacement cooling system components for automotive service applications. Confirm part number US8990 against the vehicle catalog before installation.