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331.01.0010 Fan Belt Tensioner, Cooling System
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331.01.0010 Mercedes-Benz Compatible Fan Belt Tensioner

331.01.0010

Summary

This heavy-duty fan belt tensioner is designed for Mercedes-Benz heavy commercial vehicles to maintain optimal belt tension within the cooling system. It ensures the fan operates at the correct speed to prevent overheating during intensive operation. Equivalent to OE Dayco APV2451 and Mercedes-Benz 4572000170.

Product identifiers
EAN Code8699031092485
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Compatible OEM Codes

  • MERCEDES BENZ
    • 457 200 21 70
    • 457 200 15 70
    • 457 200 01 70
  • DAYCO
    • APV2451

Description

This fan belt tensioner serves as a critical component within the cooling system of heavy commercial vehicles, ensuring the belt driving the fan remains at the correct tension. By applying constant pressure, it prevents belt slippage and compensates for any slack caused by heat or mileage, allowing the fan to rotate at its designed speed to maintain engine temperature control.

This component is compatible with Mercedes-Benz trucks and heavy commercial vehicles. It functions seamlessly within the engine's cooling and fan assembly to ensure uninterrupted performance in demanding environments.

Technicians should inspect this unit during routine maintenance intervals to check for bearing wear or spring fatigue. Ensuring proper installation and alignment of the tensioner helps prevent premature belt wear and maintains the integrity of the entire cooling chain.

Consult your authorized distributor.

OE cross-reference

331.01.0010 (Fan Belt Tensioner Fan) is the equivalent of the Dayco and Mercedes-Benz OE numbers. This part directly replaces Dayco OE number APV2451. It also replaces Mercedes-Benz OE numbers 4572000170, 4572001570, 4572002170.

Other OEMs

DAYCO

  • APV2451

MERCEDES BENZ

  • A4572002170
  • A4572001570
  • A4572000170
  • 4572002170
  • 4572001570
  • 4572000170
  • 457.200.2170
  • 457.200.21.70
  • 457.200.1570
  • 457.200.15.70
  • 457.200.0170
  • 457.200.01.70
  • 457 200 2170
  • 457 200 1570
  • 457 200 0170
  • 457 200 21 70
  • 457 200 15 70
  • 457 200 01 70

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
DAYCO
MERCEDES BENZ

FAQ

What is the function of this fan belt tensioner?
It applies constant pressure to the fan belt, automatically taking up slack to ensure the fan rotates at its designed speed without slipping.
Which vehicle makes is this part compatible with?
This part is designed for use in Mercedes-Benz heavy commercial vehicles.
How can I know if my tensioner needs replacement?
Signs of failure include unusual noise from the pulley, visible belt vibration, or uneven belt wear due to improper tension.
Does this part help in engine temperature regulation?
Yes, by maintaining correct belt tension, it ensures the cooling fan operates effectively to regulate engine temperature.
What are the OE reference numbers of this part?
331.01.0010 directly replaces Dayco OE number APV2451. It also replaces Mercedes-Benz OE numbers 4572000170, 4572001570, 4572002170.