Fits Cummins® 855 NH250/NTC400 Cylinder Head Reman 2 Cyl Diesel 152650, 3008100, 3007716, 3008101, 3007717, 3041993, 3041991, 3041994 **LOADED** All New Hardware. Large Exh Port 1.850, Small Spring 1.250, Valve Protrusion .140, 5/16 Inj. Hold Down
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