The Caterpillar C11 is a 11.1L 6-cylinder diesel engine. Originally manufactured by Caterpillar, this engine has been widely used across243+ vehicle applications from 11 different vehicle manufacturers spanning model years 2003-2012. Popular vehicle makes include Freightliner, Peterbilt, International, Kenworth, Sterling Truck, and more.

Our remanufactured Caterpillar C11 diesel engine long block undergoes a comprehensive rebuild process that meets or exceeds OEM specifications. Every engine is completely disassembled, thoroughly inspected, precision machined, and reassembled with new bearings, gaskets, seals, and critical wear components. The finished remanufactured C11 long block is then pressure tested and quality verified before shipping.

US Engine Production has been remanufacturing Caterpillar diesel engines for over 45 years, making us one of the most experienced suppliers in the industry. Every remanufactured C11diesel engine long block ships with a comprehensive 1-year unlimited mileage warranty and free shipping within the continental United States. We offer both long block and complete drop-in engine configurations to match your specific installation needs.

Whether you're replacing a failed engine in a commercial truck, construction equipment, or industrial application, our remanufactured Caterpillar C11 delivers reliable performance at a fraction of the cost of a new engine. Call our diesel engine specialists at631-991-7700 for a personalized quote and expert guidance on selecting the right configuration for your vehicle.