Industrial Injection 5.9 Cummins Stage 1 Builder Box (1991-1998)
Premium Freight Coordination
Qualifying stocked engines ship through our coordinated flat-rate freight program with Old Dominion.
Qualifying stocked engines ship through our coordinated flat-rate freight program with Old Dominion.
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.
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.
1991-1998 Dodge Ram 2500 & 3500 5.9L Cummins 12 Valve
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.
Free economy ground shipping on most orders over $200. This includes lower 48 United States only. Excludes products that must ship freight.
When you purchase a product from our website that has a core requirement, you have two options:
1. You choose to pay the core charge and we will ship the product right away, then once we receive the cores you will be refunded the core charge if your cores pass our inspection qualifications. This is the preferred choice and has the least delays.
2. You choose to send in your cores before we ship the product that was purchased. This choice has the risk of delayed shipment of your purchased product and our inventory is not guaranteed by the time we receive your cores. You will need to follow all of the instructions below as quickly as possible so that you can get your purchased product and we can receive the cores. When you choose this option you acknowledge that by the time we receive your cores, our inventory could have change and there could be a delay in your shipment.
INCLUDE RA# THAT WAS ISSUED AT TIME OF PURCHASE! If RA # is lost, please call Customer Service at (800) 955-0476. Have your original invoice at time of phone call to give all appropriate information for return.
Core return freight is the responsibility of the customer
FULL CREDIT WILL BE GIVEN WHEN:
In order to receive full core credit, your core(s) must be returned within 90 days from receipt of order. It must be as is “off the engine.” Full core credit will be given if core meets acceptance criteria. Cores that are damaged during shipment to Industrial Injection are the responsibility of the customer and their shipping company.
NOTE: packages that have fuel or oil residue on the outside of the box during shipping will not be delivered by UPS or the postal service which will cause delays.
PLEASE RETAIN RA#, INVOICE # AND TRACKING NUMBER UNTIL CREDIT IS RECEIVED BY YOU. We do not research by customer name, only invoice # or RA #.