Premium Brand New Cylinder Head Assembly – Detroit Diesel S60 14L DDECV. Product Overview Get your truck back on the road with this 100% brand new, fully loaded cylinder head assembly. This is an aftermarket replacement built to strict OEM standards. Ready to install with valves, springs, retainers, seals, and cam bearings pre-installed. No core charge or return required. ?? Detailed Fitment & Compatibility This cylinder head is specifically engineered for the EPA04 emission era engines. Please review the following specifications to ensure a perfect fit. Engine Series: Detroit Diesel Series 60 (S60). Engine Displacement: 14.0 Liter (14L). Control System: DDEC V (DDEC 5). Common Years: 2004, 2005, 2006, 2007 (Pre-DPF models). Primary OEM Number: 23538858. Interchange Part Numbers: 23529682, 23531254, 23533689, 23534774, 23526679. ? Important Fitment Verification (Read Before Ordering). Check your ESN: This head fits engines with a Serial Number (ESN) starting with 06R08XXXXX through 06R09XXXXX. If your engine has a DPF (Diesel Particulate Filter), this is likely the wrong part. Casting Number: Please verify that your current head casting number matches the 2353 series for 14L DDECV. High-Nickel Casting: Enhanced material for superior heat dissipation and crack resistance. Inconel Exhaust Valves: Designed to withstand high horsepower and extreme exhaust temperatures. Complete Assembly: Includes injector cups and cam bearings, saving you hours of machine shop labor. Condition: 100% Brand New (Non-Remanufactured).