Oil Pump Drive Sprocket (Engine Timing & Lubrication Gear) ?️

This precision-toothed sprocket is a critical link between the engine’s rotating assembly and the oil pump. It is needed to keep steady oil pressure so bearings, cam surfaces, and timing components stay protected by a constant film of oil. When the engine turns, this sprocket transfers rotation to the oil pump drive, helping the pump move oil from the sump through the filter and into the oil galleries.

How It Works ⚙️

The sprocket meshes with its matching chain/gear set and spins at a synchronized speed. That smooth, accurate drive prevents pressure drops during cold starts, high RPM, and heavy load. Good tooth profile and correct hardness reduce backlash and keep pump operation quiet and efficient.

Why Replacement Matters ✅

If the sprocket is worn, chipped, or out of alignment, the oil pump may slow down or slip. That can cause low oil pressure, noisy lifters, flickering oil warning light, and accelerated engine wear.

What Happens If It Breaks ?

A failed sprocket can stop oil circulation almost instantly. The result may be bearing seizure, scored crank journals, damaged camshafts, and catastrophic engine failure within minutes.

Compatible Models

• Lexus LX470