Professional Grade Cylinder Head for Detroit Diesel S60 14.0L EGR? Compatible Engine: Detroit Diesel Series 60 (S60) 14.0 Liter. Casting Number: 23534743 (Please verify on your current head). Replacement OE: 23538857, 23534745, 23526607, 23526608. Superior Material & Quality. High-Nickel Alloy: Manufactured with premium high-nickel alloy cast iron for enhanced thermal stability and maximum resistance against heat-stress cracking. Precision Machined: Critical surfaces are precision-ground to ensure a perfect gasket seal and engine block fitment. Rigorous Testing: Every unit undergoes strict quality control to meet or exceed OEM performance standards. Note: Does not fit 12.7L or early Non-EGR 14L engines. No Core Charge required.