InMotion WU5050 Engine Water Pump

Engine Cooling Replacement

The InMotion WU5050 engine water pump is built for broad GM fitment and direct cooling-system service. It is engineered to move coolant efficiently, help control operating temperature, and support dependable engine performance in older Buick, Chevrolet, Oldsmobile, and Pontiac applications.

Key Features

• Precision-machined impeller for strong coolant circulation
• High-quality bearings and seals for smooth, leak-resistant operation
• Corrosion-resistant housing for durability in demanding conditions
• OEM-style fit for straightforward replacement service
• Part number WU5050 for easy identification

Detailed Description

This engine water pump is designed for vehicles that need consistent coolant flow and stable thermal control. The precision-machined impeller helps maintain circulation through the cooling system, while the bearing and seal design supports smooth operation and helps reduce leakage concerns. The corrosion-resistant housing adds durability for long-term service. Compatible With 1985-1995 Buick LeSabre, Park Avenue, Regal, Riviera, Century, Skylark, Reatta, Electra, Somerset, and Somerset Regal; 1985-1995 Chevrolet Lumina APV; 1985-1995 Oldsmobile 88, 98, Achieva, Calais, Cutlass Ciera, Cutlass Cruiser, Cutlass Calais, Delta 88, Silhouette, and Toronado; 1985-1995 Pontiac Bonneville, Firebird, Grand Am, and Trans Sport. This part number WU5050 also supersedes WU5050N.

What It Helps Address

• Overheating caused by reduced coolant circulation
• Coolant leaks from worn seals or aging pump components
• Noisy or rough pump operation from bearing wear
• Cooling-system performance loss in high-mileage engines
• Replacement needs for aging OE-style water pumps

Installation Notes and Quality

Verify engine application and cooling-system configuration before installation. Inspect the mating surfaces, hoses, and coolant condition during service, and follow the vehicle manufacturer’s cooling-system procedures. InMotion designs this pump for OEM fit and dependable service, with materials selected for durability and efficient operation. Part number WU5050 is the primary reference for this application.