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A4571801443 Mercedes-Benz Housing Oil Nozzle
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A4571801443 Mercedes-Benz Housing Oil Nozzle

0101 029

Summary

High-strength housing oil nozzle designed for Mercedes-Benz heavy commercial vehicle engines. This critical component ensures effective piston cooling and lubrication within the crankcase system to maintain optimal thermal balance during heavy-duty operation. Equivalent to OE Mercedes-Benz A4571801443.

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 engine component is essential for maintaining the thermal stability of heavy commercial vehicle engines by spraying pressurized oil onto the underside of the piston. By directing oil spray against the piston skirt, it effectively removes heat accumulated from the combustion chamber, preventing thermal fatigue and ensuring long-term reliability.

Compatibility with Mercedes-Benz engines

This housing oil nozzle is specifically designed for use in Mercedes-Benz engines. It functions as a vital part of the lubrication system, working in conjunction with the main oil gallery to provide targeted cooling and reduce friction at the piston pin and connecting rod small-end bushing.

Installation and maintenance guidance

To ensure correct installation, technicians should verify the connection style—whether it is a bolted flange, banjo-connected, or threaded body—and match the spray tube angle to the original part. Proper fitment is critical to ensure oil reaches the piston base rather than the cylinder liner wall. Consult your authorized distributor for precise application guidance.

Troubleshooting and selection

Maintaining correct oil pressure is vital for this component's performance. If oil spray patterns are inconsistent or pressure drops occur at idle, it may indicate a need for inspection of the nozzle or its integrated check valve.

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 A4571801443.

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 primary function of a housing oil nozzle?
The nozzle sprays pressurized engine oil onto the underside of the piston to carry heat away from the combustion chamber, providing essential piston cooling.
Can I use any oil nozzle in a Mercedes-Benz engine?
No, it is critical to match the specific connection style and spray tube angle required by your engine code to avoid improper fitment or damage.
How can I tell if a housing oil nozzle is failing?
Signs of failure include insufficient cooling, unusual engine temperature, or pressure drops in the main oil gallery during operation.
Why is the spray tube angle important for this part?
The angle ensures that oil hits the piston base accurately; an incorrect angle can cause oil to hit the cylinder liner, leading to improper cooling.
What are the OE reference numbers of this part?
0101 029 directly replaces Mercedes-Benz OE number A4571801443.