Oil Pump , the core power component of the engine lubrication system, with key information as follows:

Core Function

Driven by the engine crankshaft via gears, it pressurizes oil from the oil pan and delivers it to all friction components (crankshaft, camshaft, pistons, etc.) within the engine. This forms a lubricating oil film, performing four major functions: lubrication, cooling, cleaning, and sealing. It prevents dry friction damage to components.

Compatible Models and Engines

Compatible Engines: Weichai WP10/WP12 series diesel engines

Compatible Models: Heavy-duty trucks including Sinotruk Howo, Shandong Heavy Duty Truck, Shaanxi Heavy Duty Truck Delong, etc.

(Model AZ1500070021A)

Product Features

Structure Type: Gear-type oil pump utilizing volume changes in the meshing clearance between drive and driven gears to achieve oil suction and compression. Features stable flow and high pressure resistance.

Widened Design: The illustrated “48MM Widened Type” increases gear meshing width compared to standard models, enhancing oil delivery capacity for high-displacement, heavy-duty engines under high loads.

Installation & Drive: Mounted to the engine block via housing bolts. The front gear meshes with the crankshaft (or intermediate shaft) gear, receiving direct drive from engine power.

Maintenance Key Points: Regularly replace the oil filter element to prevent contaminants from entering the pump and causing gear wear. If oil pressure drops excessively, inspect the gear clearance within the pump body or the condition of the pressure relief valve.