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331.01.0019 Fan Belt Tensioner, Cooling System
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331.01.0019 Fan Belt Tensioner for Mercedes-Benz

331.01.0019

Summary

This heavy-duty fan belt tensioner is engineered for Mercedes-Benz engines to maintain optimal belt tension within the cooling system. It ensures the fan operates at the designed speed by automatically compensating for belt stretch, preventing slippage and ensuring reliable engine temperature regulation. Equivalent to OE Dayco APV1101 and Mercedes-Benz 9062000670.

Product identifiers
EAN Code8699031092652
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Compatible OEM Codes

  • MERCEDES BENZ
    • 906 200 06 70
  • DAYCO
    • APV1101

Description

What does a fan belt tensioner do?

This fan belt tensioner serves as a critical mechanical component within the cooling system of heavy commercial vehicles. By applying constant, balanced pressure to the belt, it ensures that torque is transmitted without slippage, allowing the fan to rotate at its required speed. This component is essential for maintaining stable engine temperatures during intensive operation.

Vehicle compatibility and fitment

Designed for compatibility with Mercedes-Benz vehicles, this unit helps prevent belt wear caused by improper tension. It functions by automatically taking up the slack that naturally develops as belts stretch due to heat and high mileage. This reliability is vital for trucks, buses, and construction machinery where cooling interruption is not an option.

Installation and maintenance

For workshop technicians, ensuring proper installation of the tensioner is key to long-term service life. The unit should be inspected alongside the belt and pulley assembly to ensure no uneven wear or vibration occurs. Regular checks of the spring-loaded mechanism help prevent sudden belt failure and maintain optimal engine performance.

Troubleshooting and selection

Consult your authorized distributor to verify fitment for your specific engine model.

OE cross-reference

331.01.0019 (Fan Belt Tensioner Fan) is the equivalent of the Dayco and Mercedes-Benz OE numbers. This part directly replaces Dayco OE number APV1101. It also replaces Mercedes-Benz OE number 9062000670.

Other OEMs

DAYCO

  • APV1101

MERCEDES BENZ

  • A9062000670
  • 9062000670
  • 906.200.0670
  • 906.200.06.70
  • 906 200 0670
  • 906 200 06 70

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
DAYCO
MERCEDES BENZ

FAQ

What is the function of a fan belt tensioner?
The tensioner applies constant pressure to the fan belt, preventing slippage and automatically compensating for belt stretch to ensure the cooling fan rotates at the correct speed.
Which vehicle brands is this part compatible with?
This specific component is designed to be compatible with Mercedes-Benz heavy commercial vehicle engines.
What are the signs of a failing tensioner?
Common signs include unusual noise from the cooling system, visible belt flutter, or irregular engine temperature readings caused by improper belt tension.
How should I choose a replacement tensioner?
Ensure the part matches the original specifications for your specific engine model and check compatibility with your vehicle's cooling system requirements.
What are the OE reference numbers of this part?
331.01.0019 directly replaces Dayco OE number APV1101. It also replaces Mercedes-Benz OE number 9062000670.