Toyota 16377-30510-71 Fan Pulley Assembly

The 16377-30510-71 fan pulley is a genuine Toyota replacement component designed for the 14Z series diesel engines used in Toyota 7FD35, 7FD40, 7FD45, and 7FDK40 internal combustion forklifts. This pulley mounts on the water pump shaft and transmits rotational force from the crankshaft via a V-belt to drive both the engine cooling fan and the water pump impeller. Constructed from high-strength steel casting, the pulley features precision-machined V-groove profiles to ensure optimal belt grip and alignment, minimizing slippage and wear under continuous heavy-duty operation. It serves as a direct interchange for OEM part numbers 16377-30510-71 and the superseded 16371-30510-71. Proper installation torque and belt tension adjustment are critical to maintain cooling system efficiency and prevent premature bearing failure in the water pump assembly.