HEAD ASSEMBLY (Nissan NI58641-50H00)

NI58641-50H00: A worn head assembly can disrupt the sealing of internal passages, leading to pressure loss in a closed system. The Nissan catalog reference for this aftermarket replacement part is NI58641-50H00. This head assembly functions as a cap or cover that retains internal components and maintains system integrity. A common failure consequence is gradual leakage past the sealing surface, which reduces operating efficiency. During routine service, a technician may notice fluid seepage around the head assembly gasket area. This item ships at approximately 3.355 POUNDS. Verify the serial number or application, then call (562) 693-7748.

Part number variants: NI58641-50H00, ni58641-50h00, NI5864150H00, ni5864150h00