URO 11511742045PRM Engine Water Pump Pulley

BMW Water Pump Pulley Upgrade

This URO engine water pump pulley is a heavy-duty aluminum upgrade for select BMW cooling system applications. It is CNC machined to OE water pump pulley dimensions for proper clearance and belt alignment, with fitment for BMW 540i, X5, Z8, 740i, 740iL, and 840Ci applications.

Key Features

• Heavy-duty aluminum upgrade with CNC-machined construction
• Black finish with corrosion-resistant surface protection
• Fixed pulley design with 7 grooves for serpentine belt use
• Bolted attachment with 4 mounting holes
• Built to OE pulley dimensions for correct belt tracking and clearance
• URO Premium line part number 11511742045PRM

Product Details

The URO Premium Heavy Duty Aluminum Upgrade, CNC Machined line is engineered for failure-prone cooling system components that benefit from stronger materials and improved durability. This engine water pump pulley uses LA-C steel construction, a 112.06 mm outside diameter, 38.2 mm inside diameter, and a 1.191 in. width to match the intended OE geometry. The fixed, bolted design supports proper serpentine belt alignment on BMW cooling system setups, including 1997-2003 BMW 540i, 2000-2003 BMW X5, 2003 BMW Z8, 1997-2001 BMW 740i, 1996-2001 BMW 740iL, and 1996-1997 BMW 840Ci. Part number 11511742045PRM is also referenced as a direct replacement for OE-style applications in this group.

This part cross-references Febi-Bilstein 38329 for the same application.

Common Issues This Part Can Address

• Cracked or warped OEM plastic water pump pulley
• Belt misalignment caused by pulley wear or distortion
• Noise from a pulley that no longer runs true
• Cooling system service needs on BMW 540i, X5, Z8, 740i, 740iL, and 840Ci models
• Corrosion or surface wear on an aging metal pulley

Installation Notes

Verify pulley diameter, groove count, and mounting pattern before installation. This pulley is designed for serpentine belt systems and uses a bolted attachment with no mounting hardware included. Composite pulleys should be replaced at the same time as the water pump, and belt condition should be inspected during service to confirm proper tracking after installation.

Quality Assurance

URO Premium products are re-engineered with more robust materials and design updates to improve durability over the original failure-prone part. This 11511742045PRM pulley is backed by a 24-month unlimited mileage warranty.