URO 11511436590PRM 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. Built to OE water pump pulley dimensions and CNC machined for proper belt alignment, it is aimed at restoring smooth accessory drive operation on BMW 325i, 330i, X5, and related models.

Key Features

• Heavy duty aluminum upgrade with CNC machined construction
• LA-C steel finish in black for a clean, corrosion-resistant appearance
• 4-bolt attachment with fixed groove pulley design
• 6-groove, V-belt configuration
• Outside diameter: 4.85 in. (123.19 mm)
• Inside diameter: 40.3 mm; width: 1.637 in.
• Manufactured to OE pulley dimensions for proper clearance and belt tracking
• URO Premium line with PRM suffix for upgraded replacement identification

Detailed Description

The URO 11511436590PRM engine water pump pulley is engineered as a direct replacement for BMW cooling system service where the original pulley has worn, warped, or lost alignment. The Heavy Duty Aluminum Upgrade, CNC Machined product line focuses on stronger materials and revised construction for improved durability in heat and vibration-heavy engine bays. This part number, 11511436590PRM, is built to match OE dimensions so the belt runs correctly and the pulley clears surrounding components as intended.

Compatible With BMW 325Ci, 330Ci, X3, X5, 325i, 325xi, 330i, 330xi, 525i, 530i, Z4, Z3, 323Ci, 323i, 328Ci, 328i, and 528i applications across the listed model years. This part cross-references Dorman - OE Solutions 300-394 for the same application.

What It Helps Address

• Wobble or runout from a worn water pump pulley
• Belt misalignment that can affect accessory drive performance
• Noise caused by pulley wear or surface damage
• Corrosion or deterioration on original pulley components
• Cooling system service where the pulley needs replacement with the water pump

Installation Notes and Tips

Verify pulley diameter, groove count, bolt pattern, and belt type before installation. This pulley uses a bolted attachment and fixed groove design, so correct seating and torque are important for belt tracking. On BMW cooling system repairs, inspect the water pump, belt, and adjacent pulleys at the same time to confirm the entire drive path is in good condition.

Quality Assurance

URO Premium products are re-engineered replacement parts built to address failure-prone OE components. This 11511436590PRM pulley is backed by a limited lifetime warranty and is manufactured to meet or exceed OEM specifications for fit and function.