InMotion WU5040 Engine Water Pump

Engine Cooling Replacement for GM Trucks

The InMotion WU5040 engine water pump is built for direct replacement in select GM applications, including Chevrolet S10 and GMC Sonoma models. It delivers steady coolant circulation to help maintain proper operating temperature and support reliable engine performance.

Key Features

• Precision-machined impeller for consistent coolant flow
• High-quality bearings and seals for smooth, leak-resistant operation
• Corrosion-resistant housing for long-term durability
• OEM-style fit for straightforward installation
• Direct replacement for select Chevrolet S10, GMC Sonoma, Astro, S15, Safari, S10 Blazer, and S15 Jimmy applications

Detailed Description

Built for 1987-1993 Chevrolet S10, 1991-1993 GMC Sonoma, 1987-1990 Chevrolet Astro, 1987-1990 GMC S15, 1987-1990 GMC Safari, 1987-1988 Chevrolet S10 Blazer, and 1987-1988 GMC S15 Jimmy applications, this InMotion water pump is engineered to restore dependable cooling system operation. The WU5040 uses a precision-machined impeller to move coolant efficiently, while durable bearings, seals, and a corrosion-resistant housing support long service life. This part number, WU5040, is a practical OE-style replacement for drivers servicing aging GM cooling systems.

Common Cooling System Issues

• Coolant circulation problems that contribute to overheating
• Leaks from worn pump seals
• Noise from failing bearings
• Reduced cooling performance in high-load driving
• Cooling system wear on higher-mileage Chevrolet S10 and GMC Sonoma vehicles

Installation Notes

Verify engine application and gasket surface condition before installation. Drain the cooling system, inspect hoses and related components, and follow the vehicle service manual for torque and refill procedures. Confirm the correct fitment for your Chevrolet S10 or GMC Sonoma before ordering the WU5040.

Quality Assurance

InMotion designs this water pump for OEM fit and dependable operation in demanding cooling system service. Part number WU5040 is built with durable internal components and a corrosion-resistant housing for consistent replacement performance.