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529.01.0066 Visco Fan Drive, Cooling System
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529.01.0066 Mercedes-Benz Compatible Visco Fan

529.01.0066

Summary

This high-strength Visco Fan Drive is designed for Mercedes-Benz heavy commercial vehicles. It functions as a critical control element to manage engine thermal balance and optimize fuel consumption through stepless speed adjustment. Compatible with Mercedes-Benz systems. Equivalent to OE Mahle-Behr 8MV376732491 and Mercedes-Benz 0002003822.

Product identifiers
EAN Code8683457015371
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Compatible OEM Codes

  • MERCEDES BENZ
    • 000 200 38 22
  • MAHLE-BEHR
    • 8MV 376 732-491

Description

What does a visco fan drive do?

This visco fan drive acts as a vital control element within the engine cooling system, directly influencing thermal balance and fuel efficiency. By adjusting fan speed steplessly according to cooling requirements, it prevents unnecessary high-speed rotation, which helps reduce power draw from the engine during low load or idle conditions.

Compatibility and application

Designed specifically for Mercedes-Benz applications, this component ensures rapid engine warm-up by disengaging during cold starts. It is also compatible with Mercedes-Benz systems, providing shock damping through its internal mechanism to protect both the fan blades and bearings from sudden speed fluctuations.

Installation and maintenance

For professional workshop technicians and fleet managers, maintaining the cooling system is essential for preventing overheating. Ensuring the viscous hub operates correctly helps manage additional heat loads when auxiliary systems are active. Consult your authorized distributor for installation guidance and fitment verification.

System performance

Proper selection of this component ensures reliable performance in heavy commercial vehicle environments, maintaining optimal operating temperatures under various load conditions.

OE cross-reference

529.01.0066 (Visco Fan Drive Fan) is the equivalent of the Mahle-Behr and Mercedes-Benz OE numbers. This part directly replaces Mahle-Behr OE number 8MV376732491. It also replaces Mercedes-Benz OE number 0002003822.

Other OEMs

MAHLE-BEHR

  • 8MV376732491
  • 8MV 376 732-491

MERCEDES BENZ

  • A0002003822
  • 0002003822
  • 000 200 38 22

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
MAHLE-BEHR
MERCEDES BENZ

FAQ

What is the primary function of a visco fan drive?
It regulates engine temperature by adjusting fan speed based on heat requirements, which improves fuel efficiency and protects the engine from overheating.
Does this part help with fuel consumption?
Yes, by unloading the fan at idle or low loads, it reduces the mechanical power required from the engine, leading to better fuel economy.
Can this part help with engine warm-up?
Yes, the viscous coupling can disengage during a cold start, allowing the engine to reach its optimal operating temperature more quickly.
How does it protect other cooling system parts?
The mechanism provides shock damping during speed changes, which reduces wear on the fan blades and the bearing assembly.
What are the OE reference numbers of this part?
529.01.0066 directly replaces Mahle-Behr OE number 8MV376732491. It also replaces Mercedes-Benz OE number 0002003822.