2104881 Genuine Paccar Engine Camshaft Timing Gear

The 2104881 camshaft gear is manufactured to Paccar factory specifications for synchronizing camshaft rotation with the crankshaft.

• Transfers rotational motion from the crankshaft to the camshaft through the timing system, providing the mechanical drive needed for camshaft operation.
• Maintains the rotational relationship between the camshaft and crankshaft so valve events remain coordinated with the engine cycle.
• Supports intake valve timing by keeping camshaft movement synchronized with the corresponding stages of piston travel.
• Supports exhaust valve timing through the camshaft’s controlled rotational relationship with the crankshaft during engine operation.
• Coordinates valve operation with piston movement, maintaining the timing relationship described for the engine’s four-stroke combustion cycle.