Skip to content
543.01.0004 Radiator Expansion Tank, Cooling System
1799 Views Updated

543.01.0004 Radiator Expansion Tank for Mercedes-Benz

543.01.0004

Summary

This radiator expansion tank is designed for Mercedes-Benz heavy commercial vehicle cooling systems. It is manufactured using high-strength components to ensure reliable pressure regulation and thermal stability within the engine cooling circuit. Equivalent to OE Mercedes-Benz 9405010003.

Product identifiers
EAN Code8683457015494
Ready to Order
Get Information
Share
WhatsApp Facebook X LinkedIn

Compatible OEM Codes

  • MERCEDES BENZ
    • 940 501 00 03

Description

What does a radiator expansion tank do?

This radiator expansion tank plays a critical role in the engine cooling system by managing coolant volume changes and maintaining correct operating pressure. By providing a reservoir for thermal expansion, it prevents air pockets and ensures steady coolant flow through the radiator and engine block.

Compatible vehicle applications

This component is designed to be compatible with Mercedes-Benz heavy commercial vehicle applications. It serves as a reliable replacement for the original unit, ensuring seamless integration within the existing cooling circuit of the truck or bus.

Installation and maintenance

For proper installation, technicians should ensure the system is completely depressurized before removal. It is recommended to inspect all connection points and hoses to prevent leaks, ensuring the new tank is securely mounted to withstand heavy-duty thermal cycles.

System reliability

Maintaining a functional expansion tank is vital for preventing engine overheating and protecting the integrity of the entire cooling system.

OE cross-reference

543.01.0004 (Radiator Expansion Tank) is the equivalent of the Mercedes-Benz OE number. This part directly replaces Mercedes-Benz OE number 9405010003.

Other OEMs

MERCEDES BENZ

  • A9405010003
  • 9405010003
  • 940 501 00 03

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
MERCEDES BENZ

FAQ

What is the function of a radiator expansion tank?
It acts as a reservoir to manage coolant volume fluctuations caused by thermal expansion and contraction during engine operation.
Which vehicles are compatible with this part?
This specific component is designed for Mercedes-Benz heavy commercial vehicle applications.
How can I tell if my expansion tank needs replacement?
Common signs include visible cracks in the housing, bulging due to excessive pressure, or visible coolant leaks around the connections.
Can I install this part without specialized tools?
Standard workshop tools are typically sufficient, but the cooling system must be fully depressurized to avoid injury from hot coolant.
What are the OE reference numbers of this part?
543.01.0004 directly replaces Mercedes-Benz OE number 9405010003.