0103 029 Volvo Oil Pump Lock Washer

What does an oil pump lock washer do?

This oil pump lock washer serves as a critical safety element within the engine lubrication system. It is designed to prevent the fasteners connecting the oil pump to its drive gear or the crankshaft from loosening due to continuous engine vibration and torque fluctuations. By providing a physical locking mechanism, it ensures the oil pump maintains its position and consistent drive engagement.

Compatible Volvo and Renault engines

This component is specifically fitted to Volvo heavy commercial vehicle engines such as the F10 (TD102), F12 (TD122), FH12 (D12A), FL10 (TD103/D10A), FL12 (TD123), NH12 (D12A), NL10 (D10A), NL12 (D12A), B10B (D10A), B10M (D10A), and B12 (D12A) engines. It is also compatible with Renault Trucks engines. Proper fitment ensures the locking tabs align correctly with the bolt head or housing surface to prevent rotation.

Installation and maintenance guidance

During maintenance or engine overhaul, technicians should verify that the washer's inner diameter matches the bolt diameter exactly. It is essential to inspect the tabs for deformation and ensure they are bent correctly against the housing surface to provide adequate locking. Maintaining these small components is vital for preventing oil pressure loss caused by pump displacement.

Troubleshooting and selection

Regular inspection of the lubrication system fasteners can prevent more significant engine failures. When replacing this part, ensure the mounting surface is clean and free of old debris to allow for a precise fitment. Consult your authorized distributor.

OE cross-reference

0103 029 (Oil Pump Lock Washer Oil Pumps) is the equivalent of the Renault Trucks and Volvo OE numbers. This part directly replaces Renault Trucks OE number 7401652948. It also replaces Volvo OE number 1652948.