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331.01.0025 Fan Belt Tensioner, Cooling System
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331.01.0025 Compatible Fan Belt Tensioner — Mercedes-Benz

331.01.0025

Summary

This heavy-duty fan belt tensioner is designed for Mercedes-Benz ECONIC 1829 LL and 1829 L models, specifically for OM 906 HLA and OM 906 LA engines. It ensures consistent belt tension to maintain optimal cooling system performance. Equivalent to OE Dayco APV2824 and Mercedes-Benz 9062004370.

Product identifiers
EAN Code8699031092744
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Compatible OEM Codes

  • MERCEDES BENZ
    • 906 200 43 70
  • DAYCO
    • APV2824

Description

What does a fan belt tensioner do?

This fan belt tensioner is a critical mechanical component within the engine cooling system that maintains the correct tension on the belt driving the fan. By utilizing a spring-loaded mechanism, it automatically compensates for belt stretch caused by heat and high mileage, ensuring the fan rotates at its designed speed without slipping.

Vehicle and engine compatibility

This component is specifically engineered for Mercedes-Benz ECONIC trucks, including the 1829 LL and 1829 L variants equipped with OM 906 HLA or OM 906 LA engines. It serves as a reliable replacement for components used in these specific heavy commercial vehicle applications.

Installation and maintenance

For workshop technicians, regular inspection of the tensioner arm and pulley bearing is essential to prevent overheating. Ensuring the tensioner is correctly mounted to the engine block allows for balanced pressure across the belt, preventing premature wear of the fan blades or drive belts.

Troubleshooting and reliability

A faulty tensioner can lead to belt flutter or slipping, which directly impacts engine temperature regulation. Maintaining this part is vital for the long-term reliability of the cooling system in heavy commercial vehicles.

OE cross-reference

331.01.0025 (Fan Belt Tensioner Fan) is the equivalent of the Dayco and Mercedes-Benz OE numbers. This part directly replaces Dayco OE number APV2824. It also replaces Mercedes-Benz OE number 9062004370.

Other OEMs

DAYCO

  • APV2824

MERCEDES BENZ

  • A9062004370
  • 9062004370
  • 906.200.4370
  • 906.200.43.70
  • 906 200 4370
  • 906 200 43 70

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
DAYCO
MERCEDES BENZ ECONIC 1829 L OM 906 LA
MERCEDES BENZ ECONIC 1829 LL OM 906 HLA
MERCEDES BENZ ECONIC 1829 LL OM 906 LA

FAQ

What is the function of this fan belt tensioner?
It maintains constant, balanced pressure on the fan belt to prevent slipping and ensure the cooling fan operates at the correct speed.
Which Mercedes-Benz models does this fit?
This part is designed for Mercedes-Benz ECONIC models, specifically the 1829 LL and 1829 L variants.
Which engines are compatible with this unit?
It is compatible with engines such as the OM 906 HLA and OM 906 LA found in specific ECONIC models.
How can I identify if a tensioner needs replacement?
Technicians should look for signs of belt slipping, unusual noise from the pulley bearing, or excessive vibration in the cooling system.
What are the OE reference numbers of this part?
331.01.0025 directly replaces Dayco OE number APV2824. It also replaces Mercedes-Benz OE number 9062004370.