HOLT CAT’s newly expanded engine rebuild facilities allow the company to rebuild C32 and 3412 engines in 48 hours. In addition, new, higher capacity machining tools have expanded HOLT’s capabilities to perform machining on all engine sizes.

We have dedicated repair facilities that are designed specifically for engines and related component repairs. Factory trained mechanics specialize in specific components to provide fast, dependable rebuilds. During the engine rebuild process, the assemblies are stripped and disassembled. Engine blocks and large components are cleaned in separate steam cleaning rooms while assemblies and small components are cleaned in agitating chemical tanks.

To ensure the engine rebuilding process is as efficient as possible, the new facility was designed with each of the steps in an engine rebuild taken into consideration.
HOLT has established 13 distinct tasks in the engine rebuilding process – wash, teardown and inspection, machining, component rebuilding, reassembly, dyno testing and final inspection, then repainting.

We also perform precision rebuilding of engine components at individual component repair stations, which are equipped with special tooling and current specification data. Fuel injection systems and governors are checked and adjusted on special fuel injection test stands to provide accurate, adjustment-free performance. Specially designed facilities house dynamometers rated to 1,725, 2000 and 4,500 hp engines to assure complete break-in and guaranteed rated horsepower. HOLT CAT’s Longview facility houses a 6,000-horsepower dynamometer specifically designed for testing large bore (3,600-sized) industrial engines—one of only three such machines in North America.