URO 11511739527PRM Engine Water Pump Pulley

Heavy Duty Aluminum Water Pump Pulley

This URO engine water pump pulley is a heavy duty aluminum upgrade for BMW cooling system service. Built to OE water pump pulley dimensions, it supports proper belt alignment and clearances for 1994-1999 BMW 318i, 318is, 318ti, and Z3 applications.

The URO Premium line focuses on re-engineered replacement parts with stronger materials and improved durability. This 11511739527PRM pulley uses CNC-machined construction and a corrosion-resistant finish to replace failure-prone OEM plastic designs in select BMW cooling systems.

• Heavy duty aluminum construction replaces OEM plastic pulley designs
• CNC machined to OE water pump pulley dimensions
• 6-groove, fixed pulley design for serpentine belt systems
• Bolted attachment with 4 mounting holes
• Black finish with corrosion-resistant surface protection
• Fits select BMW 318i, 318is, 318ti, and Z3 models
• Part number: 11511739527PRM

Detailed Product Overview

Designed for BMW cooling system repair, this engine water pump pulley measures 125.6 mm outside diameter, 38.13 mm inside diameter, and 1.356 in. width. The LA-C steel construction and fixed pulley profile are engineered for stable belt tracking under engine heat and vibration. If you are replacing a worn or cracked pulley on a BMW 318i, 318is, 318ti, or Z3, this part provides a direct-fit solution for the specified applications. Cross-reference part numbers include 11 51 1 739 527 and VAICO V20-1592.

Common Repair Symptoms

• Cracked or broken OEM plastic water pump pulley
• Belt misalignment or serpentine belt tracking issues
• Noise from a worn pulley surface or mounting area
• Cooling system service requiring pulley replacement
• Heat- or vibration-related pulley failure

Installation Notes

Verify pulley dimensions, groove count, and mounting pattern before installation. This pulley uses a bolted attachment and does not include mounting hardware or instructions. Replace the pulley during water pump service when the original component shows wear, cracking, or heat damage. Confirm belt routing and alignment after installation to maintain proper accessory drive operation.

Quality Assurance

URO Premium parts are re-engineered to address common failure points in original components. This pulley carries the URO Premium seal and is backed by a limited lifetime warranty.

Fitment

• Fits 1995-1999 BMW 318ti, N/A
• Fits 1994-1998 BMW 318i, N/A
• Fits 1996-1998 BMW Z3, N/A
• Fits 1994-1997 BMW 318is, N/A