InMotion WU4108 Engine Water Pump

Engine Water Pump for Ford, Mazda, and Mercury

The InMotion WU4108 engine water pump is built for direct-fit cooling system service on select Ford, Mazda, and Mercury applications. It uses a precision-machined impeller to promote steady coolant circulation, helping maintain engine temperature control in demanding driving conditions.

Compatible With 2001-2011 Ford Ranger, 2001-2010 Ford Explorer, 1997-1998 Ford Explorer, 2004-2010 Ford Explorer Sport Trac, 2005-2010 Ford Mustang, 2001-2010 Mazda B4000, and 1998, 2001-2010 Mercury Mountaineer applications.

Key Features

• Part number: WU4108
• Precision-machined impeller for consistent coolant flow
• High-quality bearings and seals for smooth operation
• Corrosion-resistant housing for long service life
• OEM-style fit for straightforward replacement
• Direct replacement for select Ford Ranger, Ford Explorer, and Ford Mustang cooling systems

Detailed Description

InMotion WU4108 is an engine water pump engineered for reliable coolant circulation in compatible Ford, Mazda, and Mercury vehicles. The impeller design supports efficient flow through the cooling system, while durable bearings and seals help maintain leak-free operation. The corrosion-resistant housing adds protection in harsh underhood environments, making this pump a practical choice for cooling system repair on a Ford Explorer, Ford Ranger, or Mercury Mountaineer.

This part number, WU4108, is intended for OEM-style replacement service where proper fit and dependable coolant movement are required. It is a strong match for drivers searching for a 2001-2011 Ford Ranger water pump, 2005-2010 Ford Mustang water pump, or 2001-2010 Mazda B4000 water pump.

What It Helps Fix

• Engine overheating from weak coolant circulation
• Coolant leaks from worn pump seals
• Noise or rough operation from failing pump bearings
• Reduced cooling performance in high-load driving
• Cooling system service needs on compatible Ford, Mazda, and Mercury vehicles

Installation Notes and Tips

Verify engine code and fitment before installation, especially on Ford Explorer and Explorer Sport Trac applications with VIN-specific notes. Inspect the thermostat, hoses, and coolant condition during water pump replacement, and flush the system if contamination is present. Confirm gasket sealing surfaces are clean and flat before mounting the new pump.

Quality Assurance

Built with durable internal components and a corrosion-resistant housing for dependable cooling system service. The WU4108 is engineered for a direct OEM-style fit on listed applications.