Crankshaft pinion for Scania

The crankshaft pinion with part number 7421663213 is a component within the engine timing system of Scania diesel engines. It mounts directly onto the crankshaft and serves as the drive gear for the timing chain or belt system. By transmitting rotational movement from the crankshaft to the camshaft and the fuel injection pump, this gear ensures the mechanical synchronization of the engine cycle. Accurate timing is necessary for the proper opening and closing of valves and the precise delivery of fuel into the combustion chambers.

This component is designed for use in various Scania engine configurations. It is manufactured to specific tolerances to ensure correct fitment and alignment on the crankshaft assembly. Proper installation of this gear is required to maintain the timing relationship between the rotating assembly and the valve train components. In any internal combustion engine, the crankshaft pinion acts as the primary driver for the distribution system, converting the reciprocating motion of the pistons into the timed rotation required for engine operation.