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457 180 12 43 Mercedes-Benz Compatible Housing Oil Nozzle
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457 180 12 43 Housing Oil Nozzle for Mercedes-Benz

0101 029

Summary

This housing oil nozzle is designed for Mercedes-Benz heavy commercial vehicle engines. It functions as a critical component for piston cooling and lubrication, ensuring thermal stability under heavy loads. High-strength components used to maintain system pressure. Equivalent to OE Mercedes-Benz 4571801243.

Product identifiers
EAN Code8699031061313
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Compatible OEM Codes

  • MERCEDES BENZ
    • 457 180 14 43
    • 457 180 12 43
  • LASO
    • 20014313

Description

What does a housing oil nozzle do?

This housing oil nozzle is a critical engine component fitted to the cylinder block of heavy commercial vehicle engines, spraying pressurized engine oil onto the underside of the piston skirt to provide cooling. It plays a vital role in thermal management and reducing friction within the combustion chamber area.

Compatibility and engine fitment

This part is compatible with Mercedes-Benz engines. It ensures that oil is directed precisely to the piston crown to carry heat away, preventing damage during high-load operations. The component works in tandem with the main oil gallery to maintain pressure stability across varying engine speeds.

Installation and selection guidance

When replacing this unit, technicians should verify the spray tube angle and connection style against the original part. Even within the same engine family, different tube angles may exist depending on cylinder position. Ensuring the correct fitment prevents oil from hitting the cylinder liner wall instead of the piston base.

Troubleshooting and maintenance

Consult your authorized distributor to ensure correct application and check for any specific requirements regarding check valve opening pressures or connection types like banjo or threaded bodies.

OE cross-reference

0101 029 (Housing Oil Nozzle Crankcase) is the equivalent of the Mercedes-Benz OE number. This part directly replaces Mercedes-Benz OE number 4571801243.

Other OEMs

LASO

  • 20014313

MERCEDES BENZ

  • A4571801443
  • A4571801243
  • 4571801443
  • 4571801243
  • 457.180.1443
  • 457.180.14.43
  • 457.180.1243
  • 457.180.12.43
  • 457 180 1443
  • 457 180 1243
  • 457 180 14 43
  • 457 180 12 43

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
LASO
MERCEDES BENZ

FAQ

What is the function of a housing oil nozzle?
The nozzle sprays pressurized oil onto the underside of the piston skirt. This process cools the piston crown and provides essential lubrication to the piston pin and connecting rod bushing.
Can I use any oil nozzle in my Mercedes-Benz engine?
No, selection must be based on the specific engine code and tube angle. Two similar-looking nozzles may have different spray patterns, which can cause improper cooling if misapplied.
What are the symptoms of a faulty oil nozzle?
A faulty nozzle may cause insufficient piston cooling, leading to increased temperatures, or it may cause a drop in main gallery pressure if the internal check valve fails.
How should I verify compatibility for this part?
The most reliable method is to compare the connection style—such as bolted flange or banjo—and the spray tube angle with the removed part or via the engine's spare parts catalog.
What are the OE reference numbers of this part?
0101 029 directly replaces Mercedes-Benz OE number 4571801243.