October 14, 2026

USMW Heavy Duty Oil Pump, part number USOP3101, is engineered to keep your engine running like new. Designed as a high-quality OEM replacement for Detroit Diesel applications, this oil pump is 100% leak tested, precision-manufactured with durable gears, and assembled in the USA. Unlike remanufactured units, the USOP3101 is brand new and built to deliver dependable performance and lasting quality. For heavy-duty oil pump solutions you can count on, trust USMW HD — Built to Last.

For more information about US Motor Works, LLC please visit www.usmotorworks.com

One of USMW-HD’s top sellers, the USOP5886 Oil Pump is built to handle the demands of Detroit Diesel Series 60 engines with confidence. This 100% NEW unit—never remanufactured—delivers consistent oil flow, durability, and long-lasting performance in the toughest conditions. When reliability matters most, trust a pump engineered to keep your engine protected and running strong. Find the right oil pump for your application with our Online Parts Finder.

See our Online Parts Finder to easily locate the right fit for your vehicle.

March 31, 2023

SANTA FE SPRINGS, CA. – US Motor Works, LLC, a manufacturer and distributor of Cooling Systems and Fuel Systems to the Automotive, Performance and Heavy-Duty industries, is proud to announce its latest addition to the USMW HD lineup. Part Number USOP3101  – Detroit Diesel Heavy Duty Oil Pump is now available. USMW Heavy Duty products are designed and tested at our ISO9001:2015 certified facility in Santa Fe Springs, California.

For more information about US Motor Works, LLC please visit www.usmotorworks.com

July 2, 2021

SANTA FE SPRINGS, CA. – US Motor Works, LLC, a manufacturer and distributor of Cooling Systems and Fuel Systems to the Automotive, Performance and Heavy-Duty industries, is proud to offer Extensive Oil Pump & Water Pump coverage for Caterpillar applications. Here are just some of the products now in stock and ready to order. USMW Heavy Duty products are designed, assembled and tested at our ISO9001:2015 certified facility in Santa Fe Springs, California.

March 8, 2021

SANTA FE SPRINGS, CA. – US Motor Works, LLC, a manufacturer and distributor of Cooling Systems and Fuel Systems to the Automotive, Performance and Heavy-Duty industries, is proud to announce its latest additions to the Heavy Duty lineup. Two new HD Oil Pumps are now in stock and ready to order. USMW Heavy Duty products are designed and tested at our ISO9001:2015 certified facility in Santa Fe Springs, California. See details below.

March 8, 2021

SANTA FE SPRINGS, CA. – US Motor Works, LLC, a manufacturer and distributor of Cooling Systems and Fuel Systems to the Automotive, Performance and Heavy-Duty industries, is proud to announce its latest additions to the Heavy Duty lineup. Two new HD Oil Pumps are now in stock and ready to order. USMW Heavy Duty products are designed and tested at our ISO9001:2015 certified facility in Santa Fe Springs, California. See details below.