HomeBelts and Cooling > Water Pump and Related ComponentsInMotion WU4125 Engine Water Pump
Part #: WU4125

InMotion WU4125 Engine Water Pump

⚙️ 4 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Ford, F-150 and F-150 Heritage
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Engine Water Pump for Ford F-150

Restore cooling system performance with the InMotion WU4125 engine water pump. This replacement pump is built for 2001-2004 Ford F-150 applications, including the 2004 Ford F-150 Heritage from 11/10/2000, and is engineered for steady coolant circulation and dependable operation.

  • Precision-machined impeller for consistent coolant flow
  • High-quality bearings and seals for smooth, leak-resistant operation
  • Corrosion-resistant housing for long service life
  • OEM-style fit for straightforward installation
  • Direct replacement for Ford F-150 cooling system service

Detailed Product Overview

The InMotion WU4125 water pump is designed to move coolant efficiently through the engine to help maintain proper operating temperature. Its machined impeller supports strong flow, while the bearing and seal design helps reduce noise and leakage concerns. Built with a corrosion-resistant housing, this pump is suited for routine cooling system repair on Ford F-150 trucks where reliable circulation is critical. This part number, WU4125, is a practical choice for Ford F-150 and Ford F-150 Heritage service work when replacing a worn or leaking pump.

What This Water Pump Helps Address

  • Coolant leaks from a worn pump seal
  • Overheating caused by reduced coolant circulation
  • Noise from failing pump bearings
  • Cooling system performance loss on high-mileage trucks
  • Replacement needs during water pump service on Ford F-150 models

Installation Notes and Fitment

Compatible With 2001-2002 Ford F-150, 2003 Ford F-150, and 2004 Ford F-150 Heritage, all in N/A position. Verify engine and cooling system details before installation. Clean the mounting surface, inspect hoses and related cooling components, and refill the system with the correct coolant after installation. Part number WU4125 should be matched to the vehicle application before service begins.

Quality Assurance

InMotion builds this engine water pump with durable bearings, seals, and a corrosion-resistant housing to support dependable cooling system service. The OEM-fit design is intended to simplify replacement on the listed Ford truck applications.

This part fits 4 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersPositionNotes
2004FordF-150 HeritageSVT Lightning5.4LV8N/AFrom 11/10/2000
2003FordF-150Harley-Davidson Edition5.4LV8N/A
2002FordF-150Lightning5.4LV8N/AFrom 11/10/2000
2001FordF-150Lightning5.4LV8N/AFrom 11/10/2000

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.