About Us

Trusted by professionals around the world

  • 1995

    US Motor Works is established in Commerce, CA

  • 1997

    Scaled up Manufacturing of Water Pumps to 30,000/month

  • 1999

    Us Motorworks Moves to a 30,000 sq. ft. facility in Cerritos, CA

    Purchased fan clutch division

  • 2005

    Entered joint venture with Chinese casting manufacturers

  • 2006

    40% annual growth

    Expanded facility to 50,000 sq. ft.

  • 2007

    Production reached 1,000,000 water pumps per year

    Opened engineering facility in China

  • 2008

    Development & distribution of electric fuel pumps

  • 2009

    Moved to an 80,000 sq. ft. facility in Santa Fe Springs, CA

  • 2010

    Became ISO 9001:2008 Certified

  • 2011

    Timing kits with water pumps added to the product line

    Approved vendor by APA & Vipar HD

  • 2012

    Launched HD product lines

    Approved vendor by ADN Silver

    Expanded the facility to 100,000 sq. ft.

  • 2013

    Approved vendor by Alliance and ADN Gold

  • 2014

    Expanded HD offering into oil pumps and mechanical transfer pumps

  • 2015

    Celebrated 20th anniversary

    First automotive aftermarket company certified as ISO 9001:2015

    AASA top 100 Automotive Aftermarket suppliers

  • 2016

     Purchased Pacer Performance, est 1965 and Derale Performance, est 1975

     Introduced Max Cooling Kits

     WaterpumpU.com and FuelpumpU.com become powered by US Motor Works

    Expanded facility adding 50,000 sq. ft. of manufacturing and warehouse

  • 2017

    Campaign launch for USMW HD

    Operating out of two facilities in CA (Los Angeles & Santa Fe Springs)

    More than 150,000 sq. ft. of manufacturing and distribution

  • 2018

    Performance Division certified as ISO 9001:2015

    Introduction of mechanical fuel pumps to the line

    Auto Care Association recognizes Max Cooling Kit as an official part type (56846) water pump with fan clutch

  • 2019

    Opened US Motor Works Distribution Facility in Santa Caterina N.L. Mexico, 50,000 SQ. FT.

  • 2020


    Approved vendor – all product lines APSG

  • 2021

    Opened up their 85,000 sq. ft. manufacturing facility in Monterrey Mexico in January

    Purchased OSC Automotive, est. 2001, adding 200,000 SQ. FT. of Warehouse

    Opened up 50,000 sq. ft. La Mirada, CA facility for Fuel Pump Division Operations

US Motor Works

With combined strengths of a technologically oriented manufacturer, superior sales and service organization and a sophisticated global distribution network, US Motor Works is a company on the move in the automotive marketplace.

With the focus of providing Automotive and Heavy-duty engine parts and components, US Motor Works is constantly looking for ways to support its customers by increasing the availability of quality parts and components. Currently, US Motor Works manufactures a complete line of Water pumps and Fan Clutches.

Precision Engineering and manufacturing are essential in creating products that you can depend on. At US Motor Works, quality begins with skilled technicians utilizing materials that meet or exceed OEM specifications to manufacture premium water pumps and fan clutches. Our specially trained technicians apply stringent quality control standards utilizing sophisticated technology to make sure that all US Motor Works products meet the rigorous demands of our customers. When you buy US Motor Works manufactured items, you are investing in technology that has been meticulously engineered, manufactured from the highest quality materials and thoroughly tested to assure accuracy, reliability, and workmanship.

In addition to the highest quality manufacturing, US Motor Works acts as an Export Distributor for many American based OEMs and aftermarket manufacturers, servicing the gasoline and diesel engine markets, worldwide. From 50 H.P. engines to 0ver 10,000 H.P. engines, US Motor Works is your one-stop source for all your engine parts needs.

With more than 50 years of combined experience, this powerful company is committed to providing an extensive line of high-quality products, the finest customer service and the best support program available in the automotive and heavy-duty market.

Product Development

With our 6 simple steps in new product development process, US Motor Works sits in the driver’s seat when it comes to quick and precise product development. From product definition to design, production planning and preparations, prototype production and final production run, it’s a mere 120 days or less. US Motor Work’s OPEX mentality enables us to be on the leading edge of product development.

E.I.T. Electronic Information Technology

US Motor Works utilizes proprietary Electronic Information Technology as a communication and information platform for new product releases, bulletins, technical updates and general client correspondence. USMW E.I.T. is internet based with 24/7 365 days a year access to keep our clients up to date in the most efficient and expedient format possible.

As part of our E.I.T. Platform we have also added the Fuel Pump U and Water Pump U websites. These websites are quickly becoming the educational source for fuel pumps and water pumps. Each site features a vast collection of education, tech tips and product releases. The websites are an important tool for techs and consumers.

A.E.T.S. Advanced Engineering & Technical Support

US Motor Works has created an engineering and technical environment from the design process to the final production product. Starting with CAD/CAM 3-D projections, computerized testing, a complete manufacturing plan and ending with a reliable distribution network. US Motor Works is able to track and control all related design, quality processes and packaging with specifications and manufacturing excellence in mind.


Our State-of-the-art manufacturing utilizes our four principles; Supply Chain (improved flow), Quality Management (robust quality assurance), Production (pull & flow and 5S) and Measurements by KPI’s (Key performance indicators). With these manufacturing principles and our continuous improvement ideology under the OPEX umbrella, US Motor Works continues to be the front-runner among the industry leaders.

In-House Marketing & Graphic Design

Our In-house marketing and graphic design department helps to ensure our branding is at the forefront of the automotive industry. Working closely with category managers allows us to create powerful advertisement campaigns, marketing sales tools and educational pieces.

Along with the printed media, our team also works on a digital platform via brand specific websites and social media. Through social media we are able to connect with the end users and get genuine testimony of our products, thus making each brand recognizable and a name they can trust.

A Certified ISO 9001:2015 Company

US MOTOR WORKS, LLC and its employees are committed to providing quality products, delivered in full, defect-free, with excellent customer satisfaction. We strive for excellence through our commitment to continuous improvement.

OPEX: Operational Excellence

US Motor Works adoption of OPEX is a business philosophy aimed to achieve a sustainable competitive advantage. Operational Excellence focuses on the customer’s needs. By leadership, teamwork, and problem-solving principles, US Motor Works achieves continuous improvement, empowered employees, optimized activities, and processes.

Implementation of this philosophy is built on ‘Lean Manufacturing’ principles designed to achieve:

  • World-class quality
  • Maximum productivity
  • Reliable delivery to the customer
  • Competitive pricing

Lean Manufacturing is the foundation of the Operational Excellence implementation program to create maximum value for your customers. It builds an integrated product delivery process to meet the changing needs of customers while creating a fundamental and sustainable change in organizational culture.

Lean Manufacturing has helped us achieve:

  • Substantial response time and lead time reduction with best in class On Time Delivery rate
  • Significant quality improvement, and overall cost reduction
  • Constant innovation embedded as part of the day to day work at all organizational levels
  • A permanent, on-going cultural change that delivers Continuous Improvement on a daily basis, with collaboration, commitment, and partnership among all of the organization’s employees