Quality New, Used & Rebuilt Diesel Truck Engines

JJ Rebuilders specializes in quality used truck engines and engine parts. We stock all types of truck engines including Cummins Engines, Detroit Engines, Isuzu Engines, Mitsubishi Engines, International Engines, Mercedes Engines, Ford Engines, Volvo Engines, Mack Engines, CAT Engines, Equipment Engines, Industrial Engines, Marine Engines, and More. We have parts available to core engine builders, blocks, heads, ECM’s and more. Same day shipping on most engines, freight costs vary.

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Caterpillar engines are known for their long-term durability, Cat engines are long-lasting and capable of a lot of power for industrial, vocational, and on-highway applications. Choose a model below or explore all Cat engines

Cummins Engines

Cummins diesel engines, natural gas engines, and alternative fuel engines deliver reliable power with the torque and efficiency you need for your on-highway and vocational vehicles. Choose a model below or explore all Cummins engines

Detroit Engines

Detroit offers a complete line of heavy-duty diesel engines, axles, transmissions, safety systems and connected vehicle services for the commercial transportation industry in both the on-highway and vocational markets. Choose a model below or explore all Detroit engines

International Engines

Performance is the essence of the MaxxForce brand. The MaxxForce DT, MaxxForce 9 and MaxxForce 10 have the power, torque and the reliability to start and run every day along with the durability to perform for years. Choose a model below or explore all International engines

Isuzu Engines

Isuzu offer a large variety of models with power outputs ranging from 11.8 to over 500 hp. Our engines have a legendary reputation for reliability, and innovative technologies that make diesel engines quieter, more efficient and cleaner burning. Choose a model below or explore all Isuzu engines

Mack Engines

Mack diesel truck engines are renowned across the trucking industry for their power, reliability and versatility. From construction to refuse to highway hauling, there's a Mack engine that’ll keep you at the head of the pack. Choose a model below or explore all Mack engines

Paccar Engines

PAccar engines feature enhanced durability, efficient combustion and unite high performance with reliable, weight-saving designs. Unparalleled performance in all conditions, for Paccar quality you can always trust. Choose a model below or explore all Paccar engines

Volvo Engines

Volvo engines are fuel-efficient, powerful, reliable and designed to fit a wide range of applications. The Volov D13 is known mostly as the most versatile engine in its class. Choose a model below or explore all Volvo engines