Complete Cummins Cylinder Head 3936180 4089290 3968902 3973493 fits for Cummins engine 6C/6CT8.3
The design and manufacturing quality of the cylinder head assembly directly affects the performance (power and torque), fuel economy, emission level, reliability, and durability of the engine
If there are cracks, deformations, or wear on the cylinder head, it can cause serious engine failures such as insufficient power, black smoke, coolant entering the oil (emulsification), oil burning, air leakage, etc.
Therefore, it is one of the most technologically advanced and critical core components in Cummins engines