5.9 L 24V Cummins Long Blocks (2003–2007)

Upgrade your restoration or project build with our remanufactured 5.9 L 24‑valve Cummins long blocks (2003–2007). Designed for Dodge Ram trucks and industrial applications, each long block core is precision-machined, inspected, pressure-tested, and assembled using premium parts. A robust foundation for reliable performance—whether you’re rebuilding an engine or building from scratch, CPP Diesel delivers dependability built to last.

FAQ Section

What is a 24‑valve long block?
A long block includes the core engine components such as block, crankshaft, pistons, connecting rods, and camshaft—but excludes the cylinder head, offering flexibility for rebuilds and swaps.

Which years are considered 24‑valve Cummins long blocks?
The 5.9 L 24‑valve Cummins engine was produced from 2003 to 2007, featuring the common-rail fuel system for improved power and efficiency.

Will this long block fit my 3rd-gen Dodge Ram?
Yes—it matches factory bolt patterns and specifications, ensuring smooth fitment in compatible Ram trucks.

Are these engines tested before shipping?
Absolutely. Each long block undergoes pressure testing, clearance inspection, and cleanliness checks. Every build is tagged with detailed specs for transparency and reliability.