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A4221800043 Mercedes-Benz Compatible Housing Oil Nozzle
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A4221800043 Housing Oil Nozzle for Mercedes-Benz

0101 026

Summary

This high-strength housing oil nozzle is engineered for heavy commercial vehicle engines, specifically designed to support Mercedes-Benz applications. It ensures critical oil distribution to the piston underside to manage thermal loads during operation. Equivalent to OE Mercedes-Benz A4221800043.

Product identifiers
EAN Code8699031061283
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Compatible OEM Codes

  • MERCEDES BENZ
    • 442 180 05 43
    • 442 180 03 43
    • 422 180 01 43
    • 422 180 00 43
    • 403 180 14 43
  • LASO
    • 20014303

Description

What does a housing oil nozzle do?

This engine component plays a vital role in the lubrication and cooling system of heavy commercial vehicle engines. By spraying pressurized oil onto the underside of the piston skirt, it effectively removes heat from the combustion chamber, preventing thermal overload and maintaining engine stability.

Compatibility with Mercedes-Benz engines

This part is designed to be compatible with Mercedes-Benz engines. Proper fitment ensures that oil is directed precisely to the piston base rather than the cylinder liner walls, maintaining optimal engine temperature and reducing friction on the piston pin and connecting rod bushings.

Installation and maintenance guidance

For correct installation, technicians should verify the connection style—whether it is a bolted flange, banjo-connected, or threaded body—and ensure the spray tube angle matches the original specification. Using an incorrect geometry can lead to improper oil distribution or block damage. Always check the engine code to ensure precise alignment within the oil gallery.

Troubleshooting and selection

To prevent potential issues like pressure drops at idle or insufficient cooling, it is recommended to inspect the nozzle and its check valve during routine maintenance intervals. Consult your authorized distributor for further guidance.

OE cross-reference

0101 026 (Housing Oil Nozzle Crankcase) is the equivalent of the Mercedes-Benz OE number. This part directly replaces Mercedes-Benz OE number A4221800043.

Other OEMs

LASO

  • 20014303

MERCEDES BENZ

  • A4421800543
  • A4421800343
  • A4221800143
  • A4221800043
  • A4031801443
  • 4421800543
  • 4421800343
  • 442.180.0543
  • 442.180.05.43
  • 442.180.0343
  • 442.180.03.43
  • 442 180 0543
  • 442 180 0343
  • 4221800143
  • 4221800043
  • 422.180.0143
  • 422.180.01.43
  • 422.180.0043
  • 422.180.00.43
  • 422 180 0143
  • 422 180 0043
  • 4031801443
  • 403.180.1443
  • 403.180.14.43
  • 403 180 1443
  • 442 180 05 43
  • 442 180 03 43
  • 422 180 01 43
  • 422 180 00 43
  • 403 180 14 43

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
LASO
MERCEDES BENZ

FAQ

What is the primary function of this housing oil nozzle?
It sprays pressurized engine oil onto the underside of the piston to dissipate heat from the combustion chamber and lubricate the piston pin.
Which vehicle brands is this part compatible with?
This specific component is designed for use in Mercedes-Benz heavy commercial vehicle engines.
How can I ensure I am selecting the correct nozzle?
Technicians should verify the connection style (banjo, threaded, or bolted) and match the spray tube angle and engine code to avoid improper fitment.
What are the symptoms of a faulty oil nozzle?
A faulty nozzle may cause insufficient piston cooling, loss of gallery pressure at idle, or improper lubrication of engine components.
What are the OE reference numbers of this part?
0101 026 directly replaces Mercedes-Benz OE number A4221800043.