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543.02.0004 Radiator Expansion Tank, Cooling System
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543.02.0004 MAN Compatible Radiator Expansion Tank

543.02.0004

Summary

High-strength radiator expansion tank designed for MAN heavy commercial vehicles. This component ensures stable coolant pressure and thermal management within the cooling system. Compatible with MAN and Mahle-Behr systems. Equivalent to OE Mahle-Behr 8MA376705341 and MAN 81061026109.

Product identifiers
EAN Code8683457016187
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Compatible OEM Codes

  • MAN
    • 81.06102-6219
    • 81.06102-6204
    • 81.06102-6109
  • MAHLE-BEHR
    • 8MA376705341

Description

What does a radiator expansion tank do?

This radiator expansion tank serves a critical role in the heavy commercial vehicle cooling system by managing coolant volume changes and maintaining the required operating pressure. By providing a reservoir for thermal expansion, it prevents air pockets from forming within the engine block and helps regulate system pressure during high-temperature operation.

Vehicle compatibility and fitment

This specific component is engineered for compatibility with MAN trucks and meets the requirements of OE-referenced standards. It is designed to withstand the rigorous thermal cycling typical of heavy-duty engine environments, ensuring long-term reliability for fleet managers and workshop technicians.

Installation and maintenance

Installation should be performed by a qualified technician to ensure correct mounting and secure connection to the radiator hoses. Regular inspection of the tank body and connections is recommended to prevent leaks and ensure the cooling system maintains optimal pressure levels.

System reliability

Maintaining a functional expansion tank is vital for preventing engine overheating and ensuring consistent coolant levels throughout the vehicle's service life.

OE cross-reference

543.02.0004 (Radiator Expansion Tank) is the equivalent of the Mahle-Behr and MAN OE numbers. This part directly replaces Mahle-Behr OE number 8MA376705341. It also replaces MAN OE numbers 81061026109, 81061026204, 81061026219.

Other OEMs

MAHLE-BEHR

  • 8MA376705341

MAN

  • 81061026219
  • 81061026204
  • 81061026109
  • 81.06102-6219
  • 81.06102-6204
  • 81.06102-6109

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
MAHLE-BEHR
MAN

FAQ

What is the function of a radiator expansion tank?
The expansion tank manages coolant volume changes caused by thermal expansion, helping to maintain steady pressure within the cooling system.
Which vehicles is this part compatible with?
This component is specifically designed to fit MAN heavy commercial vehicles and is compatible with systems matching Mahle-Behr specifications.
How can I tell if an expansion tank needs replacement?
Technicians should look for signs of visible cracks in the tank body, coolant residue around connections, or a loss of system pressure.
Is this part suitable for heavy commercial vehicles?
Yes, this part is engineered specifically for heavy commercial vehicle applications to handle high-stress thermal environments.
What are the OE reference numbers of this part?
543.02.0004 directly replaces Mahle-Behr OE number 8MA376705341. It also replaces MAN OE numbers 81061026109, 81061026204, 81061026219.