Industrial Injection 5.9 Cummins Stock Builder Box (2003-2004)

Build Your Own 5.9 Cummins With Confidence

The Industrial Injection 5.9L Cummins Stock Builder Box was designed for diesel enthusiasts, engine builders, and mechanics who want the satisfaction of assembling their own engine while saving thousands in labor and assembly costs.

This complete unassembled short block package includes all the critical machined components required to build a dependable, long-lasting 5.9 Cummins engine. Every component is precision machined, balanced, and blueprinted to Industrial Injection specifications, creating a reliable foundation for stock replacement, towing, work truck, and daily driving applications.

By combining professional machine work with premium assembly components, the Stock Builder Box delivers OE-style reliability and durability while allowing you to complete the final assembly yourself.

Key Features

Precision Machine Work

• Block machined using a plateau honing process
• Torque plate honed cylinders
• Machined to blueprint specifications
• Precision-balanced crankshaft
• Precision-balanced stock connecting rods
• Professionally balanced rotating assembly

Premium Engine Components

• Industrial Injection X Series Pistons with rings and wrist pins
• New main bearings
• New rod bearings
• Stock Cummins camshaft
• New cam bearings

Reliability Upgrades

• New Cummins oil cooler
• New Cummins oil pump
• New Cummins tappets
• Complete Cummins lower engine gasket set

Stock Builder Box Construction

Every Industrial Injection Stock Builder Box begins with a carefully inspected engine block that undergoes precision machining and blueprinting processes. The cylinders are plateau honed using torque plates to ensure proper cylinder geometry and optimal ring sealing under operating conditions.

The rotating assembly is precision balanced to minimize vibration, improve engine smoothness, and maximize service life. Combined with Industrial Injection X Series Pistons, new bearings, oiling system components, tappets, and gaskets, this builder box provides a dependable foundation for a professional-quality engine build.

This package is ideal for customers who want Industrial Injection machine work and component quality while retaining the flexibility and cost savings of final engine assembly.

Vehicle Fitment

2003-2004 Dodge Ram 2500 & 3500 5.9L Cummins Common Rail

• Dodge Ram 2500
• Dodge Ram 3500

Why Choose the Industrial Injection Stock Builder Box?

• Save thousands in engine assembly labor
• Blueprint-machined for superior reliability
• Precision-balanced rotating assembly
• Industrial Injection X Series Pistons
• New bearings throughout
• New Cummins oil system components
• Perfect foundation for stock replacement and towing applications
• Built using Industrial Injection's proven engine machining expertise
• Designed for long service life and dependable performance

Ideal For

• DIY engine builders
• Engine rebuild projects
• Stock replacement engines
• Tow rigs
• Daily drivers
• Commercial work trucks
• Restoration projects
• Long-term reliability upgrades

Build it yourself with confidence using the same machining processes and quality standards trusted in Industrial Injection engine builds. The Stock Builder Box provides everything needed to start your 5.9 Cummins build on a foundation engineered for reliability, durability, and long-term performance.

Note: This is an unassembled short block builder package and does not include fuel system, cylinder head, or turbocharger components.