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403 180 14 43 Housing Oil Nozzle for Mercedes-Benz
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403 180 14 43 Mercedes-Benz Compatible Housing Oil Nozzle

0101 026

Summary

This housing oil nozzle is engineered for heavy commercial vehicle engines, specifically compatible with Mercedes-Benz. It provides essential cooling to the piston underside through pressurized oil spray, ensuring thermal balance and reducing friction during heavy-duty operation. Equivalent to OE Mercedes-Benz 4031801443.

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 housing oil nozzle plays a critical role in the engine lubrication and cooling system. By spraying pressurized engine oil directly onto the underside of the piston, it carries heat away from the combustion chamber and helps maintain thermal balance within the cylinder block. This process is vital for preventing piston crown overheating and ensuring long-term engine durability.

Compatibility and engine fitment

This component is compatible with Mercedes-Benz heavy commercial vehicle engines. Precise oil spray patterns are essential to ensure the jet reaches the piston base rather than the cylinder liner wall. For correct fitment, always verify the connection style—whether it be a bolted flange, banjo connection, or threaded body—and match it to the specific engine code of the vehicle.

Installation and maintenance guidance

Maintenance technicians should inspect these nozzles during engine overhauls. It is important to check for proper spray angles and ensure that any integrated check valves function correctly to maintain gallery pressure at idle. Using high-strength components helps prevent oil leakage and maintains the required pressure levels within the main oil gallery.

Selection and troubleshooting

Consult your authorized distributor to ensure exact compatibility with your specific engine series and block configuration.

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 4031801443.

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?
The nozzle sprays pressurized oil onto the underside of the piston to remove heat from the piston crown and provide essential lubrication to the piston pin.
How can I ensure I select the correct nozzle?
It is critical to match the connection style and spray tube angle with the original part. Always use the engine code to ensure the jet geometry is correct for your specific cylinder position.
What are the risks of using an incorrect oil nozzle?
An incorrect selection may lead to improper spray angles, causing oil to hit the cylinder liner instead of the piston, which can result in overheating or block damage.
Why is check valve functionality important?
In nozzles with integrated valves, proper pressure management is key to maintaining gallery pressure at idle while allowing sufficient flow at higher speeds.
What are the OE reference numbers of this part?
0101 026 directly replaces Mercedes-Benz OE number 4031801443.