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331.01.0020 Fan Belt Tensioner, Cooling System
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331.01.0020 Mercedes-Benz ATEGO 2 Compatible Fan Tensioner

331.01.0020

Summary

Heavy-duty fan belt tensioner designed for Mercedes-Benz ATEGO 2 trucks with OM 924 LA engines. This component ensures consistent belt tension and optimal cooling system performance for heavy commercial vehicles. Equivalent to OE Dayco APV1109 and Mercedes-Benz 9062002470.

Product identifiers
EAN Code8699031092669
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Compatible OEM Codes

  • MERCEDES BENZ
    • 906 200 31 70
    • 906 200 24 70
  • DAYCO
    • APV1109

Description

What does a fan belt tensioner do?

This fan belt tensioner plays a critical role in the cooling system of heavy commercial vehicles by maintaining the precise tension required for the belt driving the fan and fan pulley. By applying constant, balanced pressure, it prevents belt slippage and ensures that the engine cooling process remains uninterrupted during heavy-duty operation.

Vehicle and engine compatibility

This specific part is designed for Mercedes-Benz ATEGO 2 models, including various variants such as the 1022, 1322, and 1522 series, specifically when equipped with the OM 924 LA engine. It is also compatible with other Mercedes-Benz trucks within this vehicle class.

Installation and maintenance guidance

For workshop technicians, ensuring proper installation is vital for maintaining thermal stability in the engine. The unit works to automatically take up any slack caused by belt stretch over time, preventing premature wear on the fan pulley and ensuring the fan operates at its intended design speed.

Troubleshooting and performance

Regular inspection of the tensioner assembly can help prevent overheating issues caused by belt slip or vibration. Consult your authorized distributor to check the compatibility list for your specific vehicle configuration.

OE cross-reference

331.01.0020 (Fan Belt Tensioner Fan) is the equivalent of the Dayco and Mercedes-Benz OE numbers. This part directly replaces Dayco OE number APV1109. It also replaces Mercedes-Benz OE numbers 9062002470, 9062003170.

Other OEMs

DAYCO

  • APV1109

MERCEDES BENZ

  • A9062003170
  • A9062002470
  • 9062003170
  • 9062002470
  • 906.200.3170
  • 906.200.31.70
  • 906.200.2470
  • 906.200.24.70
  • 906 200 3170
  • 906 200 2470
  • 906 200 31 70
  • 906 200 24 70

Related Products

Repair Kits

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
DAYCO
MERCEDES BENZ ATEGO 2 1022 OM 924 LA
MERCEDES BENZ ATEGO 2 1022 A OM 924 LA
MERCEDES BENZ ATEGO 2 1022 AFE OM 924 LA
MERCEDES BENZ ATEGO 2 1022 AK OM 924 LA
MERCEDES BENZ ATEGO 2 1022 AKE OM 924 LA
MERCEDES BENZ ATEGO 2 1022 K OM 924 LA
MERCEDES BENZ ATEGO 2 1022 KO OM 924 LA
MERCEDES BENZ ATEGO 2 1022 L OM 924 LA
MERCEDES BENZ ATEGO 2 1222 OM 924 LA
MERCEDES BENZ ATEGO 2 1222 AF OM 924 LA
MERCEDES BENZ ATEGO 2 1222 F OM 924 LA
MERCEDES BENZ ATEGO 2 1222 K OM 924 LA
MERCEDES BENZ ATEGO 2 1222 L OM 924 LA
MERCEDES BENZ ATEGO 2 1322 OM 924 LA
MERCEDES BENZ ATEGO 2 1322 A OM 924 LA
MERCEDES BENZ ATEGO 2 1322 AE OM 924 LA
MERCEDES BENZ ATEGO 2 1322 AF OM 924 LA
MERCEDES BENZ ATEGO 2 1322 AFE OM 924 LA
MERCEDES BENZ ATEGO 2 1322 AK OM 924 LA
MERCEDES BENZ ATEGO 2 1322 F OM 924 LA
MERCEDES BENZ ATEGO 2 1322 K OM 924 LA
MERCEDES BENZ ATEGO 2 1322 L OM 924 LA
MERCEDES BENZ ATEGO 2 1322 LKO OM 924 LA
MERCEDES BENZ ATEGO 2 1322 LS OM 924 LA
MERCEDES BENZ ATEGO 2 1522 OM 924 LA
MERCEDES BENZ ATEGO 2 1522 A OM 924 LA
MERCEDES BENZ ATEGO 2 1522 AF OM 924 LA
MERCEDES BENZ ATEGO 2 1522 AK OM 924 LA
MERCEDES BENZ ATEGO 2 1522 F OM 924 LA
MERCEDES BENZ ATEGO 2 1522 K OM 924 LA
MERCEDES BENZ ATEGO 2 1522 L OM 924 LA
MERCEDES BENZ ATEGO 2 1622 OM 924 LA
MERCEDES BENZ ATEGO 2 1622 K OM 924 LA
MERCEDES BENZ ATEGO 2 722 OM 924 LA
MERCEDES BENZ ATEGO 2 722 L OM 924 LA
MERCEDES BENZ ATEGO 2 822 OM 924 LA
MERCEDES BENZ ATEGO 2 822 F OM 924 LA
MERCEDES BENZ ATEGO 2 822 K OM 924 LA
MERCEDES BENZ ATEGO 2 822 L OM 924 LA
MERCEDES BENZ ATEGO 2 922 OM 924 LA
MERCEDES BENZ ATEGO 2 922 AF OM 924 LA
MERCEDES BENZ ATEGO 2 922 K OM 924 LA
MERCEDES BENZ ATEGO 2 922 L OM 924 LA

FAQ

What is the function of a fan belt tensioner?
The tensioner applies constant pressure to the belt driving the fan, preventing slippage and automatically compensating for belt stretch to maintain consistent engine cooling.
Which engines is this tensioner compatible with?
This part is specifically designed for use in Mercedes-Benz ATEGO 2 vehicles featuring the OM 924 LA engine.
How do I know if my tensioner needs replacement?
Technicians should look for signs of excessive belt vibration, unusual noise from the pulley, or visible misalignment which may indicate a worn spring or bearing.
Can this part be used in other Mercedes-Benz trucks?
This component is engineered for specific ATEGO 2 series models; always verify your engine code and mounting type to ensure correct fitment.
What are the OE reference numbers of this part?
331.01.0020 directly replaces Dayco OE number APV1109. It also replaces Mercedes-Benz OE numbers 9062002470, 9062003170.