InMotion WU5036 Engine Water Pump

Engine Water Pump for Pontiac and Buick Applications

The InMotion WU5036 engine water pump is built for vehicles that need consistent coolant circulation and dependable thermal control. It is a direct-fit replacement for select Pontiac, Buick, and Oldsmobile applications, including Pontiac Grand Am, Sunbird, Tempest, LeMans, and Optima models.

• Precision-machined impeller for steady coolant flow
• High-quality bearings and seals for smooth operation and leak resistance
• Corrosion-resistant housing for long-term durability
• OEM-style fit for straightforward installation
• Part number WU5036 for easy identification

Detailed Product Overview

InMotion WU5036 is an engine water pump engineered to circulate coolant through the cooling system and maintain stable operating temperatures. It is a direct replacement for 1986-1990 Pontiac, Buick, and Oldsmobile vehicles listed in the fitment data, including Fits 1987-1989 Pontiac Grand Am, Fits 1987-1989 Pontiac Sunbird, and Fits 1987-1989 Pontiac Tempest. The pump uses a machined impeller, durable bearings, and sealed construction to support reliable operation in demanding driving conditions.

This part cross-references no listed interchange numbers in the provided data. Use WU5036 when searching for an OE-style engine water pump for Pontiac Grand Am, Pontiac Sunbird, and Pontiac Tempest cooling system service.

Common Cooling System Problems

• Coolant circulation loss from a worn pump
• Engine overheating from reduced flow
• Coolant leaks from aging seals
• Noise or rough operation from worn bearings
• Corrosion-related pump housing wear

Installation Notes and Tips

Verify engine application, year, and VIN notes before installation. This pump is listed for N/A position fitments and includes VIN (K) notes on select Buick Skyhawk and Oldsmobile Firenza applications, so confirm the exact vehicle configuration before ordering. Inspect the cooling system, gasket surfaces, hoses, and coolant condition during replacement to complete the repair correctly.

Quality Assurance

InMotion builds this water pump with corrosion-resistant materials, sealed bearings, and a precision-machined impeller to support dependable cooling performance and long service life.