US Diesel Parts is proud to be an authorized distributor of Industrial Injection, a true power-house when it comes to the best quality performance diesel products. If you are in need of a replacement Cummins or Duramax engine and only the best quality will do, Industrial Injection is who you go with. They offer long-block's in configurations ranging from improved-stock up to full race/competition class. If you don't see a configuration that suits your needs, let us know and we can work with them to get an engine customized just how you want. These performance engines are machined and assembled in Industrial Injections state of the art machine shop using the best parts available. Brands like; Mahle, Clevite, Victor, SBI, MAHLE Performance, and Cummins parts. Call us on our toll free # 1(800)823-4444 if you have any questions.