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331.03.0001 Belt Tensioner, Fan — VOLVO / RENAULT TRUCKS

331.03.0001

Summary

The VADEN ORIGINAL 331.03.0001 is a high-strength component designed for the cooling system. This Belt Tensioner, Fan is engineered to be compatible with VOLVO (21257889, 3979980, 8149879), RENAULT TRUCKS (5010550335, 7403979980, 7421257889), and DAYCO (APV1067) systems to ensure reliable heavy commercial vehicle operation.

EAN Code8699031093017
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Description

The heavy-duty belt tensioner plays a critical role in maintaining constant tension within the cooling system fan drive, ensuring stable engine performance under varying thermal loads. This component is engineered with high-strength components to withstand the rigorous vibrations and thermal stresses typical of heavy commercial vehicle environments.

Specifically designed for precision, the 331.03.0001 is the OE-equivalent of the DAYCO APV1067 belt tensioner used in VOLVO (21257889, 3979980, 8149879) and RENAULT TRUCKS (5010550335, 7403979980, 7421257889) heavy-duty applications. It provides a seamless fit for workshop technicians looking to maintain or restore original cooling system functionality.

For workshop technicians and fleet managers, this part offers ease of assembly and reliable tension regulation. Regular inspection of the belt tensioner system is recommended during routine maintenance to prevent belt slippage or premature wear in the cooling circuit. This component meets the strict requirements of modern heavy-duty engine architectures to support long-term durability.

Other OEMs

Vehicles Used

BrandModelEngine
DAYCO
RENAULT TRUCKS
VOLVO

FAQ

What vehicles is this belt tensioner compatible with?
This part is compatible with VOLVO (21257889, 3979980, 8149879) and RENAULT TRUCKS (501 own 550335, 7403979980, 7421257889) systems.
Which OEM numbers can this part replace?
It serves as an OE-equivalent for DAYCO APV1067, RENAULT TRUCKS 501 own 550335, 7403979980, 7421257889, and VOLVO 21257889, 397998 even 8149879.
Is this part suitable for heavy commercial vehicles?
Yes, it is designed specifically for the cooling systems of heavy commercial vehicles such as trucks and buses.
What is the main function of this component?
The belt tensioner maintains the correct tension on the fan belt within the cooling system to ensure stable engine operation.
Can I use this as a replacement for DAYCO parts?
Yes, it is a high-quality alternative compatible with DAYCO APV1067 specifications.