The Detroit Diesel Jun-71 is a 7L 6-cylinder diesel engine. Originally manufactured by Detroit Diesel, this engine has been widely used across410+ vehicle applications from 24 different vehicle manufacturers spanning model years 1981-2001. Popular vehicle makes include White/GMC, Ford, White, Crane Carrier, Peterbilt, and more.

Our remanufactured Detroit Diesel Jun-71 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 Jun-71 long block is then pressure tested and quality verified before shipping.

US Engine Production has been remanufacturing Detroit Diesel diesel engines for over 45 years, making us one of the most experienced suppliers in the industry. Every remanufactured Jun-71diesel 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 Detroit Diesel Jun-71 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.