A9040109520
Cylinder Head
Detroit Diesel

The critical upper-end engine component that closes the combustion chamber, integrates intake and exhaust passages, and houses the valve trains as applicable, provides essential sealing and heat transfer functions. It supports the valve gear and maintains compression while enabling efficient cooling through integrated coolant passages. In practice, this assembly underpins engine performance, fuel efficiency, and reliability by sustaining proper sealing under high loads and temperatures and by contributing to uniform heat distribution. VMRS code 045-007-001 identifies its placement within the lubrication and engine subsystem, and category 53856 further contextualizes its role in power generation hardware. Compatibility spans multiple Detroit Diesel platforms that use this top-end design, with installation requiring precise surface finish and appropriate torque of mating components to ensure a durable seal and long service life. This element is fundamental to preventing head gasket failures and maintaining peak power output under demanding operating conditions such as heavy hauling, extended idling, or hot climates. Category context: 53856.