Industrial Injection 5.9 Cummins Stage 1 Builder Box (2003-2007) Build Your Own Performance 5.9 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 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. 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 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 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 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.