New Loaded Cylinder Head for 2003-2007 Dodge Ram 5.9L Cummins Common Rail Product Overview
This is a brand-new, premium-grade loaded cylinder head assembly, precision-engineered to withstand the high-pressure demands of Common Rail (CR) diesel engines. It comes 100% fully assembled with heavy-duty valves and springs pre-installed—ready to bolt on and eliminate vehicle downtime.
Crucial Fitment & Verification
To ensure a seamless installation, please verify your engine configuration before purchasing.
- Direct Fit Application: Fits 2003, 2004, 2005, 2006, 2007 Dodge Ram 2500 and 3500 Pickups equipped with the 5.9L Cummins 24-Valve High-Pressure Common Rail (HPCR) engine.
- Casting Number Verification: Directly interchanges with casting number 3977221 (Found on the cylinder head body).
- OEM Reference Numbers: 5282703 | 3991773 | 5336956 | 4941495 | 4897480 | 4941496 | 3977225 | HD204C
⚠️ Critical Exclusion Note (Avoid Return Fees):
- DOES NOT FIT: 1998.5–2002 Dodge Ram 5.9L 24V trucks utilizing the older VP44 mechanical fuel pump system. The injector angles and cooling jackets are completely different.
- DOES NOT FIT: 2007.5 and newer 6.7L Cummins platforms.
- Please Note: This upper engine component assembly does NOT include cylinder head bolts. We highly recommend using brand-new head bolts for installation.
Premium Construction
- Built from high-strength, reinforced gray iron to prevent thermal cracking between valve seats.
- 100% factory pressure-tested to guarantee leak-free performance.
LTL Freight Shipping Information
To prevent any shipping damages, this item is shipped via palletized LTL Freight in a secured wooden crate. A valid commercial address and working phone number are strictly required for delivery scheduling.
