Skip to content
A4421800543 Mercedes-Benz Compatible Housing Oil Nozzle
2868 Views Updated

A4421800543 Housing Oil Nozzle for Mercedes-Benz

0101 026

Summary

This housing oil nozzle is designed for heavy commercial vehicle engines, specifically compatible with Mercedes-Benz. It provides essential cooling to the piston crown and maintains pressure management within the engine block to ensure long-term durability under heavy-duty conditions. Equivalent to OE Mercedes-Benz A4421800543.

Product identifiers
EAN Code8699031061283
Ready to Order
Get Information
Share
WhatsApp Facebook X LinkedIn

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 maintaining the thermal balance of heavy commercial vehicle engines by directing pressurized oil onto the underside of the piston. By spraying oil directly onto the piston crown, it carries heat away from the combustion chamber and into the sump, which is critical for preventing overheating in high-load environments.

Engine compatibility and function

This specific housing oil nozzle is designed for use in Mercedes-Benz engines. It ensures that oil is distributed effectively from the main gallery to provide necessary lubrication to the piston pin and connecting rod small-end bushing. Proper fitment is essential to ensure the spray reaches the correct area of the piston skirt.

Installation and selection guidance

When replacing this component, technicians should verify the connection style—whether it is a bolted flange, banjo-connected, or threaded body—and match the spray tube angle precisely. Incorrect geometry can lead to oil hitting the cylinder liner instead of the piston base, potentially causing engine damage. Always consult your authorized distributor to ensure correct selection based on engine codes.

Troubleshooting and maintenance

Regular inspection of oil nozzles during engine overhauls can help prevent premature wear caused by insufficient cooling or pressure drops at idle.

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 A4421800543.

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 sprays pressurized engine oil onto the underside of the piston crown to remove heat from the combustion chamber and lubricate the piston pin.
Can I use any oil nozzle in a Mercedes-Benz engine?
No, you must match the OE specifications, including the connection style and spray tube angle, to ensure proper cooling and prevent block damage.
What happens if an incorrect nozzle is installed?
A wrong selection may cause oil to hit the cylinder liner instead of the piston base, leading to insufficient cooling and potential engine failure.
How can I identify the correct replacement part?
The most reliable method is to use the OE reference number from the removed part along with the specific engine code.
What are the OE reference numbers of this part?
0101 026 directly replaces Mercedes-Benz OE number A4421800543.