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A3661800143 Mercedes-Benz Compatible Housing Oil Nozzle
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A3661800143 Housing Oil Nozzle for Mercedes-Benz

0101 031

Summary

This housing oil nozzle is designed for Mercedes-Benz heavy commercial vehicle engines. It functions as a critical component for piston cooling and lubrication, ensuring thermal balance and reducing friction within the crankcase system during high-load operations. Equivalent to OE Mercedes-Benz A3661800143.

Product identifiers
EAN Code8699031061337
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Compatible OEM Codes

  • MERCEDES BENZ
    • 366 180 01 43
    • 352 180 01 43
  • LASO
    • 20014301

Description

What does a housing oil nozzle do?

This housing oil nozzle plays a vital role in the engine's lubrication and cooling system. By directing pressurized oil from the main gallery toward the underside of the piston, it effectively carries heat away from the combustion chamber. This process is essential for maintaining thermal balance and preventing damage to the piston crown and rings in heavy-duty diesel engines.

Vehicle and engine compatibility

This component is specifically compatible with Mercedes-Benz engines. It is engineered to meet the rigorous demands of heavy commercial vehicle applications, providing reliable oil spray patterns to ensure proper piston pin lubrication and cooling. The nozzle is designed to integrate seamlessly into the engine block gallery.

Installation and maintenance

For technicians, verifying the connection style—whether it be a bolted flange, banjo connection, or threaded body—is essential during installation. It is highly recommended to compare the spray tube angle of the new part with the original component to ensure oil reaches the piston base correctly. Proper seating in the gallery is critical to prevent pressure drops in the main oil system.

Selection guidance

Regular inspection of the oil spray pattern and check valve functionality can help prevent premature engine wear. Ensuring the nozzle is free from debris during installation maintains optimal pressure management and cooling efficiency.

OE cross-reference

0101 031 (Housing Oil Nozzle Crankcase) is the equivalent of the Mercedes-Benz OE number. This part directly replaces Mercedes-Benz OE number A3661800143.

Other OEMs

LASO

  • 20014301

MERCEDES BENZ

  • A3661800143
  • A3521800143
  • 3661800143
  • 366.180.0143
  • 366.180.01.43
  • 366 180 0143
  • 3521800143
  • 352.180.0143
  • 352.180.01.43
  • 352 180 0143
  • 366 180 01 43
  • 352 180 01 43

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
LASO
MERCEDES BENZ

FAQ

What is the function of a housing oil nozzle?
The nozzle directs pressurized engine oil onto the underside of the piston to provide essential cooling and lubrication for the piston pin.
How can I ensure correct fitment for my engine?
It is critical to verify the connection style and spray tube angle against the original part to ensure it seats correctly in the block gallery.
What happens if an incorrect nozzle is installed?
Installing a nozzle with a different geometry or angle may cause oil to hit the cylinder liner instead of the piston base, leading to overheating.
Can I use any oil jet for my Mercedes-Benz engine?
No, selection should always be made based on specific engine codes and connection types to ensure proper pressure management and spray patterns.
What are the OE reference numbers of this part?
0101 031 directly replaces Mercedes-Benz OE number A3661800143.