Skip to content
331.01.0029 Fan Belt Tensioner, Cooling System
1020 Views Updated

331.01.0029 Fan Belt Tensioner for Mercedes-Benz

331.01.0029

Summary

This high-strength fan belt tensioner is engineered for Mercedes-Benz heavy commercial vehicles. It ensures constant belt tension to maintain optimal cooling system performance and prevent slippage in demanding environments. Equivalent to OE Dayco APV1130 and Mercedes-Benz 4602000770.

Product identifiers
EAN Code8699031092805
Ready to Order
Get Information
Share
WhatsApp Facebook X LinkedIn

Compatible OEM Codes

  • MERCEDES BENZ
    • 460 200 07 70
  • DAYCO
    • APV1130

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 driving the fan, it ensures that torque is transmitted without slippage. This mechanism allows the fan to rotate at its designed speed, which is vital for maintaining stable engine temperatures during operation.

Vehicle compatibility

This specific unit is compatible with Mercedes-Benz trucks and heavy commercial vehicles. It functions as a spring-loaded component that automatically compensates for any slack caused by belt stretch or thermal expansion over time. This reliability is essential for preventing overheating in demanding service environments.

Installation and maintenance

For workshop technicians, regular inspection of the tensioner arm and bearing-mounted pulley is recommended during routine maintenance intervals. Checking for uneven wear or excessive play in the pulley helps prevent sudden belt failure and ensures the cooling system remains functional under high load.

Troubleshooting and selection

Maintaining proper belt tension prevents vibration and reduces wear on other engine components. Consult your authorized distributor for further technical assistance regarding fitment.

OE cross-reference

331.01.0029 (Fan Belt Tensioner Fan) is the equivalent of the Dayco and Mercedes-Benz OE numbers. This part directly replaces Dayco OE number APV1130. It also replaces Mercedes-Benz OE number 4602000770.

Other OEMs

DAYCO

  • APV1130

MERCEDES BENZ

  • A4602000770
  • 4602000770
  • 460.200.0770
  • 460.200.07.70
  • 460 200 0770
  • 460 200 07 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, automatically taking up slack to prevent slipping and ensuring the fan rotates at the correct speed.
Which vehicle makes is this part compatible with?
This component is designed to be compatible with Mercedes-Benz heavy commercial vehicles and their cooling systems.
How can I identify a failing tensioner?
Technicians should look for signs such as excessive belt vibration, unusual noise from the pulley bearing, or visible misalignment of the belt.
Why is maintaining correct belt tension important?
Correct tension ensures efficient heat dissipation from the radiator by keeping the fan turning reliably, preventing engine overheating.
What are the OE reference numbers of this part?
331.01.0029 directly replaces Dayco OE number APV1130. It also replaces Mercedes-Benz OE number 4602000770.