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51 05405 5016 MAN Compatible Oil Pump Overflow Valve

0102 085

Summary

This oil pump overflow valve is designed for MAN engines, featuring an M13x1.75 specification to ensure reliable pressure regulation within the engine lubrication system. It serves as a critical safety component for heavy commercial vehicle engines. Equivalent to OE MAN 51054055016.

Product identifiers
EAN Code8699031073705
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Compatible OEM Codes

  • MAN
    • 51.05406-0034
    • 51.05406-0032
    • 51.05405-5024
    • 51.05405-5019
    • 51.05405-5016

Description

This oil pump overflow valve is a critical safety component within the lubrication circuit of heavy commercial vehicle engines, ensuring that the pressure generated by the oil pump remains within safe operating limits. By redirecting excess oil when pressure exceeds a pre-set threshold, it protects the oil filter, oil cooler, and seals from excessive force.

This specific component is compatible with MAN engines. It is engineered to withstand the rigorous thermal and mechanical stresses found in heavy-duty engine environments, maintaining consistent oil flow control during varying engine speeds.

When performing maintenance, technicians should inspect the valve seat and the internal ball or piston surface for any signs of contamination or scoring during routine oil changes. It is essential to verify that the spring orientation is correct during installation to ensure proper pressure control and to use the manufacturer-recommended oil viscosity to maintain optimal valve performance.

Consult your authorized distributor for further information.

OE cross-reference

0102 085 (Oil Pump Overflow Valve Oil Pumps) is the equivalent of the MAN OE number. This part directly replaces MAN OE number 51054055016.

Technical Specifications

Technical Specifications
DescriptionM13x1.75

Other OEMs

MAN

  • 51054060034
  • 51054060032
  • 51054055024
  • 51054055019
  • 51054055016
  • 51.05406.0034
  • 51.05406.0032
  • 51.05405.5024
  • 51.05405.5019
  • 51.05405.5016
  • 51-05406-0034
  • 51-05406-0032
  • 51-05405-5024
  • 51-05405-5019
  • 51-05405-5016
  • 51 05406 0034
  • 51 05406 0032
  • 51 05405 5024
  • 51 05405 5019
  • 51 05405 5016
  • 51.05406-0034
  • 51.05406-0032
  • 51.05405-5024
  • 51.05405-5019
  • 51.05405-5016

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
MAN

FAQ

What is the function of an oil pump overflow valve?
It acts as a safety mechanism that redirects excess oil back to the sump when system pressure exceeds safe limits, protecting engine seals and filters.
How can I tell if the overflow valve is malfunctioning?
Symptoms may include inconsistent oil pressure readings at idle or high speeds, or visible leaks around the valve housing due to improper seating.
What should I check during installation?
Ensure the spring is oriented correctly and that all sealing surfaces are free from carbon buildup or metal shavings to prevent persistent leaks.
Does oil viscosity affect this component?
Yes, using an oil viscosity outside of manufacturer specifications can negatively impact how the valve opens and regulates system pressure.
What are the OE reference numbers of this part?
0102 085 directly replaces MAN OE number 51054055016.