US Motor Works US4104 Engine Water Pump

Brand US Motor Works US4104
Fits Ford · 3 vehicles

100% new pump. Designed and tested to meet or exceed OE specifications.

Precision-machined housing. Built with quality hubs, bearings, seals, and impellers.

Engine cooling essential. Helps keep the cooling system operating efficiently and longer.

Cross-references 96MX 8591-AA, AW4104 and WP-9154 for the same application. See all 4.

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Engine Water Pump for Ford Fiesta

US Motor Works US4104 is a 100% new engine water pump for the cooling system on select Ford Fiesta models. It is built to OE specifications with a precision-machined housing and quality hubs, bearings, seals, and impellers for consistent coolant circulation and long service life.

Compatible With 1998-2000 Ford Fiesta, N/A. This part number, US4104, is also referenced for the same application under AW4104.

Key Features

  • 100% new engine water pump construction
  • Built to meet or exceed original equipment specifications
  • Precision-machined housing for accurate fit and operation
  • Quality hubs, bearings, seals, and impellers
  • Designed for dependable coolant flow in demanding driving conditions
  • Fits 1998-2000 Ford Fiesta, N/A

Application Details

US Motor Works US4104 is an engine water pump for the Ford Fiesta cooling system. It is intended for 1998, 1999, and 2000 Ford Fiesta models and supports proper coolant circulation to help maintain stable engine operating temperatures. If you are replacing a worn Ford Fiesta water pump, US4104 provides an OE-style replacement built from new components.

What It Helps Address

  • Coolant leaks from a worn pump seal or housing
  • Overheating caused by reduced coolant circulation
  • Noise from failing pump bearings
  • Poor cooling performance from a damaged impeller
  • Service replacement for a high-mileage Ford Fiesta water pump

Installation Notes

Verify engine cooling system condition before installation and inspect related components such as the thermostat, hoses, and coolant. Confirm the part number US4104 matches the vehicle application before installation on a 1998-2000 Ford Fiesta.

Quality Assurance

US Motor Works states that this water pump is manufactured and tested to meet or exceed OE specifications. The brand emphasizes precision machining and quality internal components to support cooling-system durability and engine protection.

This part fits 3 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelNotes
2000FordFiestaBase
1999FordFiestaBase
1998FordFiestaBase
Directly replaces or cross-references 4 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
96MX 8591-AAAW4104WP-9154YSG6 8501-A2C