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A4031801443 Mercedes-Benz Housing Oil Nozzle
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A4031801443 Mercedes-Benz Housing Oil Nozzle

0101 026

Summary

This engine housing oil nozzle is designed for Mercedes-Benz heavy commercial vehicle engines. It provides essential oil spray to the underside of the piston to manage thermal loads and ensure proper lubrication during operation. Equivalent to OE Mercedes-Benz A4031801443.

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 housing oil nozzle is a critical component within the crankcase system, specifically designed to manage heat and lubrication in heavy-duty diesel engines. By delivering a precise spray of pressurized oil onto the underside of the piston, it helps dissipate heat from the combustion chamber and provides necessary lubrication to the piston pin and connecting rod bushings.

Vehicle and engine compatibility

This part is compatible with Mercedes-Benz engines. For correct fitment, it is vital to match the specific connection style and spray configuration required by the engine block to ensure the oil reaches the piston skirt effectively.

Installation and maintenance guidance

When replacing this component, technicians should verify the connection type—whether it be a bolted flange, banjo connection, or threaded body—and compare the spray tube angle with the existing part. Ensuring the check valve opening pressure matches the original specifications is essential to maintain proper gallery pressure at idle and prevent insufficient cooling at high engine speeds.

Selection and troubleshooting

To avoid improper seating or oil leakage, always verify compatibility using the engine code and original specifications. Consult your authorized distributor for guidance on selecting the correct variant for your specific engine application.

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 A4031801443.

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 function of a housing oil nozzle?
It directs pressurized engine oil onto the underside of the piston to provide essential cooling and lubrication for the piston pin area.
Can I select a nozzle based only on visual appearance?
No, even similar nozzles can have different spray angles or valve pressures. It is best to use the engine code and original specifications.
What happens if the wrong nozzle is installed?
Incorrect geometry can lead to oil hitting the cylinder liner instead of the piston base, causing overheating or potential engine damage.
How do I ensure correct fitment for Mercedes-Benz engines?
Check if the connection style (banjo, threaded, or bolted) matches your current part and verify that the spray tube angle is identical to the original.
What are the OE reference numbers of this part?
0101 026 directly replaces Mercedes-Benz OE number A4031801443.