Industrial Injection 5.9 Cummins Stage 1 Builder Box (1991-1998)

Build Your Own Performance 12 Valve Cummins With Confidence

The Industrial Injection 5.9L Cummins Stage 1 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 performance parts required to build a durable, reliable, and powerful 5.9 Cummins engine. Every component is precision machined, balanced, and blueprinted to Industrial Injection specifications, creating a foundation capable of handling towing, daily driving, and mild to moderate performance applications.

By combining professional machine work with proven performance upgrades, the Stage 1 Builder Box delivers exceptional reliability, durability, and value 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 connecting rods
• Professionally balanced rotating assembly

Premium Performance Components

• Industrial Injection X Series Coated & Chamfered Pistons
• Balanced connecting rods with ARP rod bolts
• Industrial Injection Stage 1 Camshaft (188/220)
• 12mm Gorilla Girdle with custom ARP main studs
• Coated H-Series main bearings
• Coated H-Series rod bearings
• New cam bearings
• Billet freeze plugs

Reliability Upgrades

• Premium Killer Dowel Pin (KDP) Kit Included
• New oil cooler
• New oil pump
• New tappets
• Complete lower engine gasket set

Stage 1 Builder Box Construction

Every Industrial Injection Stage 1 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, improve durability, and maximize engine life. Industrial Injection X Series Coated & Chamfered Pistons, ARP fasteners, coated H-Series bearings, and the reinforced Gorilla Girdle provide a strong foundation capable of handling increased power levels while maintaining long-term reliability.

The included Industrial Injection Stage 1 188/220 camshaft improves airflow and engine efficiency while maintaining excellent street manners, making this package ideal for towing, daily driving, and performance-oriented builds.

To further enhance reliability, this builder box includes a Premium Killer Dowel Pin (KDP) Kit. The Killer Dowel Pin upgrade addresses one of the most common failure points found in 12 Valve Cummins engines by permanently securing the factory alignment dowel, helping prevent catastrophic engine damage and providing added peace of mind for long-term operation.

Vehicle Fitment

1991-1998 Dodge Ram 2500 & 3500 5.9L Cummins 12 Valve

• Dodge Ram 2500
• Dodge Ram 3500

Why Choose the Industrial Injection Stage 1 Builder Box?

• Save thousands in engine assembly labor
• Blueprint-machined for superior reliability
• Precision-balanced rotating assembly
• Industrial Injection X Series Coated & Chamfered Pistons
• Industrial Injection Stage 1 188/220 camshaft included
• 12mm Gorilla Girdle with custom ARP main studs
• Premium Killer Dowel Pin Kit included
• Billet freeze plugs installed
• Coated H-Series performance bearings
• New Cummins oil system components
• Perfect foundation for towing and performance builds
• Built using Industrial Injection's proven engine machining expertise

Ideal For

• DIY engine builders
• Performance rebuild projects
• Towing applications
• Daily drivers
• Street performance trucks
• Work trucks
• Restoration projects
• Reliability upgrades
• Mild to moderate horsepower builds

Build it yourself with confidence using the same machining processes, premium components, and engine-building expertise trusted in Industrial Injection performance engines. The Stage 1 Builder Box provides everything needed to start your 5.9 Cummins build on a foundation engineered for durability, reliability, and increased performance.

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