InMotion WU4101 Engine Water Pump

Engine Water Pump for Ford Explorer and Mountaineer

The InMotion WU4101 engine water pump is built for direct-fit cooling system service on select Ford Explorer and Mercury Mountaineer applications. It uses a precision-machined impeller to promote steady coolant circulation, helping maintain engine temperature control under daily driving and demanding conditions.

Fits 1996-1998 Ford Explorer, Vin (P). Fits 2001 Ford Explorer, Vin (P). Fits 1997-1998 Mercury Mountaineer, Vin (P). Fits 2001 Mercury Mountaineer, Vin (P).

Key Features

• Precision-machined impeller for consistent coolant flow
• High-quality bearings and seals for smooth operation
• Corrosion-resistant housing for long-term durability
• OEM-style fit for straightforward replacement service
• Designed for select Ford Explorer and Mercury Mountaineer cooling systems

Detailed Description

InMotion WU4101 is an engine water pump engineered for vehicles that require reliable coolant circulation and stable operating temperatures. The housing is built to resist corrosion, while the bearing and seal design supports leak-resistant operation and dependable rotation. For drivers searching for a Ford Explorer water pump or Mercury Mountaineer water pump replacement, this part number provides a direct-fit solution for the listed VIN P applications.

This part number, WU4101, is intended for cooling system repair where the original pump shows wear, leakage, or reduced flow. It is a practical choice for maintaining engine cooling performance in 1996-1998 Ford Explorer, 2001 Ford Explorer, 1997-1998 Mercury Mountaineer, and 2001 Mercury Mountaineer applications.

What It Helps Address

• Coolant leakage from a worn pump seal
• Reduced coolant circulation through the engine
• Overheating caused by pump wear or impeller damage
• Noisy operation from failing bearings
• Corrosion-related housing deterioration

Installation Notes and Tips

Verify VIN P fitment before ordering and compare the removed pump to the replacement part number WU4101. Inspect the cooling system, hoses, thermostat, and drive components during service so the new pump is installed into a clean, properly functioning system. Follow the vehicle service manual for torque values, gasket sealing procedure, and coolant refill and bleed steps.

Quality Assurance

InMotion designs this water pump with OEM fitment in mind, using durable materials and sealed bearing construction to support dependable cooling system performance. The corrosion-resistant housing and precision-machined impeller are selected to help maintain consistent operation in demanding engine environments.