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529.03.0063 Visco Fan, Cooling System
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529.03.0063 Visco Fan compatible with Volvo and Renault

529.03.0063

Summary

This Visco Fan is engineered for heavy-duty cooling systems in Volvo FH, FM, FMX, VNL, and Renault Trucks models. Designed to maintain optimal engine temperatures under high load, this component ensures reliable performance for commercial vehicle fleets. Compatible with Volvo and Renault Trucks engines. Equivalent to OE Volvo 21749783.

Product identifiers
EAN Code8683457069831
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Compatible OEM Codes

  • VOLVO
    • 85009942
    • 85003942
    • 21749783

Description

What does a Visco Fan do?

This Visco Fan plays a critical role in the engine cooling system by regulating airflow through the radiator based on temperature fluctuations. By utilizing a heat-sensitive drive mechanism, it ensures that the fan speed adapts to the thermal requirements of the engine, preventing overheating during heavy-duty operations and reducing parasitic power loss when cooling demand is low.

Compatible vehicles and engines

This component is designed for a wide range of heavy commercial vehicles, including Volvo FH (FH4/FH5), FM, FMX, VNL, and B11R/B13R models with D13 or D11K engines. It is also compatible with Renault Trucks C, K, and T series featuring DTI11 and DTI13 engines, as well as Mack Anthem with MP8 engines. It is also fitted to other heavy commercial vehicles.

Installation and maintenance

For optimal performance, technicians should inspect the viscous coupling during routine maintenance intervals to ensure consistent engagement. When replacing this unit, ensure the mounting surface is clean and torque specifications are met to prevent vibration or leaks within the cooling circuit.

System performance

Check the compatibility list.

OE cross-reference

529.03.0063 (Visco Fan Fan) is the equivalent of the Volvo OE numbers. This part directly replaces Volvo OE numbers 21749783, 85003942, 85009942.

Other OEMs

VOLVO

  • 85009942
  • 85003942
  • 21749783

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
MACK Anthem MP8
RENAULT TRUCKS C DTI13
RENAULT TRUCKS K DTI11
RENAULT TRUCKS T DTI13
VOLVO
VOLVO B11R D11K
VOLVO B13R D13K
VOLVO FH (FH4/FH5) D11K
VOLVO FH (FH4/FH5) D13K
VOLVO FH16 D16K
VOLVO FM D11K
VOLVO FM D13K
VOLVO FMX D11K
VOLVO FMX D13K
VOLVO TAD1350-1360VE D13
VOLVO VNL D13

FAQ

What is the function of a Visco Fan in a truck?
A Visco Fan regulates engine temperature by adjusting the fan speed through a heat-sensitive drive mechanism, providing efficient cooling only when required.
Which Volvo models are compatible with this fan?
This unit fits various Volvo models including FH (FH4/FH5), FM, FMX, VNL, B11R, and B13R using D13 or D11K engine configurations.
Can this fan be used on Renault Trucks?
Yes, it is compatible with Renault Trucks models such as the C series, K series, and T series equipped with DTI11 or DTI13 engines.
How can I know if my Visco Fan needs replacement?
Technicians should look for signs of overheating or a fan that fails to engage properly at high temperatures during system testing.
What are the OE reference numbers of this part?
529.03.0063 directly replaces Volvo OE numbers 21749783, 85003942, 85009942.