Industrial Injection 5.9 Cummins Stage 2 Builder Box (2003-2007)
Build Your Own Competition-Ready 5.9 Cummins With Confidence
The Industrial Injection 5.9L Cummins Stage 2 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 and premium competition-grade parts required to build a durable, reliable, and high-horsepower 5.9 Cummins engine. Every component is precision machined, balanced, and blueprinted to Industrial Injection specifications, creating a foundation capable of handling extreme towing, drag racing, sled pulling, and high-performance street applications.
By combining professional machine work with proven race-inspired upgrades, the Stage 2 Builder Box delivers exceptional durability, reliability, and performance 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
- Professionally balanced rotating assembly
- Cam journals machined to accept performance cam bearings
Premium Performance Components
- Wagler HD Forged Connecting Rods
- Industrial Injection X Series Coated, Chamfered & Fly Cut Pistons
- Industrial Injection Stage 2 Camshaft
- 14mm Gorilla Girdle with custom ARP main studs
- Billet freeze plugs
- Coated H-Series main bearings
- Coated H-Series rod bearings
- Cummins HD Modified Cam Bearing Set
Reliability Upgrades
- New oil cooler
- New oil pump
- New tappets
- Complete lower engine gasket set
Stage 2 Builder Box Construction
Every Industrial Injection Stage 2 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 balanced to minimize vibration while maximizing durability under extreme cylinder pressure and horsepower levels. Wagler HD Forged Connecting Rods, Industrial Injection X Series Coated, Chamfered & Fly Cut Pistons, coated H-Series bearings, and the reinforced 14mm Gorilla Girdle create an exceptionally strong bottom end capable of supporting serious power.
The included Industrial Injection Stage 2 Camshaft is designed to maximize airflow, improve engine efficiency, and support increased horsepower throughout the RPM range. Combined with the HD modified cam bearings and precision-machined cam journals, this package is engineered for performance enthusiasts who demand the highest level of durability and power potential.
Vehicle Fitment
2003-2007 Dodge Ram 2500 & 3500 5.9L Cummins Common Rail
- Dodge Ram 2500
- Dodge Ram 3500
Why Choose the Industrial Injection Stage 2 Builder Box?
- Save thousands in engine assembly labor
- Blueprint-machined for superior reliability
- Precision-balanced rotating assembly
- Wagler HD Forged Connecting Rods
- Industrial Injection X Series Coated, Chamfered & Fly Cut Pistons
- Industrial Injection Stage 2 Camshaft included
- 14mm Gorilla Girdle with custom ARP main studs
- Billet freeze plugs
- HD modified cam bearings
- Coated H-Series performance bearings
- New Cummins oil system components
- Built for high-horsepower towing and competition applications
- Built using Industrial Injection's proven engine machining expertise
Ideal For
- DIY engine builders
- High-performance engine builds
- Competition trucks
- Drag racing applications
- Sled pulling applications
- High-horsepower street trucks
- Extreme towing builds
- Customers seeking maximum durability and power potential
Build it yourself with confidence using the same machining processes, premium components, and engine-building expertise trusted in Industrial Injection competition engines. The Stage 2 Builder Box provides everything needed to start your 5.9 Cummins build on a foundation engineered for maximum strength, reliability, and horsepower capability.
Note: This builder box utilizes a 14mm Gorilla Girdle and requires a stamped oil pan for installation. This is an unassembled short block builder package and does not include fuel system, cylinder head, turbocharger, or engine accessories.