Configurations: GM-Chevy 6.6L Duramax Diesel Engine Long Block (LLY-LB7).We also offer Long Block Premium.

Configurations: Ford 6.4L Power Stroke Diesel Engine Long Block Premium.ARP HEAD STUD KIT ALSO AVAILABLE. 

Get powerful Detroit DD15/DD13 Diesel Engines in Long Block or Long Block Premium configurations for heavy-duty on-highway trucks and coaches. Featuring improved fuel economy, enhanced performance with APR cylinder liners, and meticulous USA assembly.

Find high-quality Cummins ISX 14.9L CM2350/EPA13 Diesel Engines (2013-2016) in Short Block, Long Block, Long Block Premium, or Complete Drop-In configurations. Assembled in the USA with OEM-grade components for lasting performance.

Find high-quality Cummins ISX 14.9L CM870/EPA04 Diesel Engines (2003-2007) in Long Block, Short Block, or Long Block Premium configurations. Assembled in the USA with OEM-grade components for lasting performance, even for demanding applications.

Find robust Cummins QSB 6.7L HP Common Rail Diesel Engines in Long Block or Complete Drop-In configurations. Ideal for off-highway construction, material handling, yard tractors, and industrial equipment, proudly assembled in the USA.

Find robust Cummins 6.7L Diesel Engines for RAM/Sterling Bullet trucks in Long Block (2007-2018) or Complete Drop-In (2007-2013) configurations. These engines are assembled in the USA with OEM-grade components, ensuring lasting performance for your chassis cab and pickup applications.

Find robust Cummins ISB02 5.9L HP Common Rail Rear Gear Diesel Engines (2002-2006) in Long Block or Complete Drop-In configurations. Ideal for walk-in vans, buses, yard tractors, and conventional cabs, all assembled in the USA with OEM-grade components.