DIAMOND STAR COMMERCIAL VEHICLES SOCAL, LLC

Westrux International, Inc. specializes in the repair and maintenance of commercial and industrial machinery and equipment, with demonstrated expertise in heavy-duty diesel engine systems and mission-critical vehicle overhauls. Their technical focus includes cylinder replacement, powertrain restoration, and performance recalibration of high-horsepower industrial engines, particularly in government-operated 4x4 heavy-duty platforms such as the International 7400 SFA. The company applies precision mechanical diagnostics, OEM-compatible component integration, and field-deployable maintenance protocols to restore operational readiness under demanding environmental and logistical conditions. Their capability centers on sustaining legacy mechanical systems where electronic diagnostics are secondary to robust mechanical intervention, distinguishing them in environments requiring rugged, non-electronic repair solutions. Westrux International has delivered services to the Department of the Interior, supporting infrastructure and fleet maintenance operations for remote field units and conservation assets. Their work for this agency involves sustaining specialized off-road vehicles used in land management, wildfire response, and wildlife monitoring, where reliability and mechanical durability are paramount. The relationship reflects a pattern of mission-critical, non-commodity maintenance requiring technical precision and rapid turnaround in austere locations. The contractor’s primary industry focus is NAICS 811310, which encompasses the repair and maintenance of non-automotive industrial machinery—particularly heavy-duty diesel engines, hydraulic systems, and drivetrains. This positions Westrux as a niche provider for federal agencies reliant on mechanical systems that predate modern electronic controls, serving sectors such as public lands management, emergency response, and industrial logistics. As a small business structured as a 2L entity, Westrux International operates from Santa Fe Springs, California, with a lean, technically focused workforce. The company holds no federal certifications but maintains a specialized, hands-on operational model suited to direct mechanical service delivery in government-constrained environments. Their geographic base supports West Coast federal operations while enabling rapid deployment to remote federal sites across the western U.S.