Gates 41057 Engine Water Pump - Main

Gates Water Pump for BMW Cooling Service

The Gates 41057 engine water pump is a standard replacement for select BMW cooling systems. It is built with a cast aluminum housing, a plastic impeller, and an accessory-belt drive layout for direct-fit service on covered applications.

For BMW 325i, 330i, X3, X5, and related models, this Gates Water Pump (Standard) is engineered for dependable coolant circulation and OE-style fitment. The 41057 is a practical choice when replacing a worn BMW water pump during routine cooling system maintenance.

Key Features

• Cast aluminum housing for strength and corrosion resistance
• Plastic impeller with standard rotation
• Accessory belt driven; not timing-belt driven
• Includes water pump and O-ring
• No back housing, thermostat housing, fan clutch, or pulley included
• 100% functional testing of seals and bearings
• 100% leakage testing of the casting and assembled pump

Product Details

Gates designs this water pump for BMW cooling system service where a standard-rotation, accessory-belt-driven pump is required. The cast aluminum body and tested seal-and-bearing assembly support consistent coolant flow, while the included O-ring helps complete the replacement on the specified applications. This part number, Gates 41057, is listed for a wide range of BMW 3 Series, 5 Series, X3, X5, Z3, and Z4 applications, including 2001-2006 BMW 325Ci, 2001-2006 BMW 330Ci, and 2004-2006 BMW X3.

This part cross-references Airtex AW9261 and Dayco DP269 for the same application.

Common Problems This Part Can Address

• Coolant leaks from a worn pump housing or seal
• Reduced coolant circulation from bearing or impeller wear
• Overheating caused by pump failure in BMW cooling systems
• Noisy operation from a deteriorated water pump bearing
• Maintenance replacement during BMW cooling system service

Installation Notes and Tips

• Verify engine fitment by year, model, and notes before ordering.
• Fits 2001-2006 BMW 325Ci, N/A; 2001-2006 BMW 330Ci, N/A; 2004-2006 BMW X3, N/A.
• Fits 2001-2005 BMW 325i, N/A; 2001-2005 BMW 320i, N/A; 2001-2005 BMW X5, N/A.
• Fits 2002-2003 BMW 525i, Main; 2002-2003 BMW 530i, Main.
• Fits 2006 BMW X5, N/A, W/O Aux. A.C.; and 2006 BMW Z4, N/A, Eng. Designation M54B30.
• Inspect the cooling system, belts, and related components during replacement.

Quality Assurance

Gates manufactures this water pump with premium alloy materials and subjects each unit to seal-and-bearing function testing plus leakage testing of the casting and assembled pump. The result is an OE-quality fit for covered BMW applications, including the Gates 41057.