Product Description
The CPP 5.9 Cummins Heavy Duty Tow Long Block Engine is designed for customers who need a stronger towing-focused engine package for 2003-2007 Dodge Ram 2500 and 3500 trucks. Built for hauling, towing, work truck applications, and heavy daily use, this long block is engineered for durability and long-term reliability.
Each 5.9 Cummins towing long block engine is built to order based on your truck, intended use, towing setup, and component availability. Please contact CPP Diesel prior to ordering to confirm pricing, current lead times, availability, and recommended supporting modifications.
Starting at $8,495, the CPP Heavy Duty Tow Series is built for customers who demand more durability and towing capability than a standard stock replacement engine.
Built for Towing, Hauling, and Heavy Workloads
The CPP Heavy Duty Tow Series is designed for customers who regularly tow trailers, haul equipment, run hotshot setups, tow campers, or use their trucks for heavy-duty work applications.
This engine package focuses on durability, valvetrain stability, cylinder sealing, and bottom-end reliability under towing load and elevated cylinder pressure conditions.
With over 16 years of diesel engine building experience, CPP Diesel has built engines for daily drivers, tow rigs, work trucks, race trucks, and sled pulling applications.
Heavy Duty Tow Series Upgrades
- ARP Head Studs
- Hamilton Valve Springs
- Hamilton Pushrods
- Upgraded Camshaft Options
- ARP Main Studs and Rod Bolts
- Performance valvetrain upgrades
- Built for towing and heavy-load applications
Backed by a 1-Year Craftsmanship Warranty
CPP Diesel Heavy Duty Tow Series engines are backed by a 1-year craftsmanship warranty for added confidence and peace of mind.
Please contact CPP Diesel for complete warranty information, break-in procedures, installation requirements, and recommended supporting modifications.
Built to Order – Contact Before Ordering
All CPP Cummins engines are built to order. Availability, component selection, lead times, and final build specifications may vary depending on parts availability and your intended application.
Please contact CPP Diesel before placing your order to confirm build details, pricing, current lead time, shipping requirements, and recommended supporting modifications.
Fitment
- 2003 Dodge Ram 2500 / 3500 5.9 Cummins
- 2004 Dodge Ram 2500 / 3500 5.9 Cummins
- 2005 Dodge Ram 2500 / 3500 5.9 Cummins
- 2006 Dodge Ram 2500 / 3500 5.9 Cummins
- 2007 Dodge Ram 2500 / 3500 5.9 Cummins
What’s Included
- Built-to-order 5.9 Cummins long block engine
- Engine block
- Crankshaft
- Connecting rods
- Pistons
- Cylinder head assembly
- Hamilton valvetrain upgrades
- ARP hardware upgrades
What’s Not Included
- Turbocharger
- Fuel injectors
- Fuel injection pump
- External accessories
- Manifolds
- Sensors, wiring, and electronics
- Tuning
- Transmission upgrades
Why Choose CPP Diesel?
- Built specifically for towing and work truck applications
- Over 16 years of diesel engine building experience
- Real-world towing, racing, and sled pulling experience
- Built with upgraded towing-focused components
- Backed by a 1-year craftsmanship warranty
- Built by diesel enthusiasts who understand Cummins reliability
Supporting Parts Recommended
Heavy towing applications place additional stress on turbochargers, fuel systems, transmissions, cooling systems, and driveline components. Supporting upgrades are strongly recommended when installing a towing-oriented long block engine.
- 5.9 Cummins Fuel Injectors
- 5.9 Cummins Turbochargers
- Cummins Fuel Injection Pumps
- Cummins Automatic Transmissions
- Cummins Manual Transmissions
Specifications for CPP 5.9 Cummins Heavy Duty Tow Long Block
| Brand | CPP Diesel |
| Series | Heavy Duty Tow Series |
| Engine Platform | 5.9L Common Rail Cummins |
| Years | 2003-2007 |
| Vehicle Fitment | Dodge Ram 2500 / 3500 |
| Engine Type | Long Block |
| Application | Towing, hauling, work truck use |
| Warranty | 1-Year Craftsmanship Warranty |
| Availability | Built to order - contact CPP Diesel before ordering |
FAQ
Is this engine built specifically for towing?
Yes. The CPP Heavy Duty Tow Series is designed for towing, hauling, and heavy work truck applications.
Does this engine include upgraded valvetrain components?
Yes. This engine package includes upgraded towing-focused valvetrain and hardware components designed for improved durability under load.
Does this engine include a warranty?
Yes. The CPP Heavy Duty Tow Series is backed by a 1-year craftsmanship warranty.
Is this engine built to order?
Yes. Every CPP Cummins engine is built to order based on your truck and intended application.
