Allis-Chalmers earned its place in diesel engine history by producing some of the most durable and innovative engines in agricultural and industrial equipment. Known for their distinctive orange machines and robust powerplants, Allis-Chalmers diesel engines like the 3500, 4000, and 6000 series became the backbone of American farming and construction. Their engines featured advanced designs including direct injection, turbocharging, and exceptional fuel efficiency that was ahead of their time. The reliability and longevity of engines like the 426, 301, and 649 series have made them legendary among operators who still depend on these workhorses decades after production.

RF Engine specializes in keeping your Allis-Chalmers equipment running with our extensive inventory of diesel engine parts and components. We understand the challenge of maintaining these classic engines and stock a comprehensive selection of new aftermarket, remanufactured, and quality used parts for all Allis-Chalmers diesel models. From complete engine rebuilds to individual components, our inventory covers everything from the compact 3-cylinder engines to the powerful 6-cylinder workhorses. Whether you're restoring vintage equipment or maintaining working machinery, RF Engine provides the hard-to-find Allis-Chalmers parts you need with the quality and reliability your equipment deserves.