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331.01.0005 Fan Belt Tensioner, Cooling System
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331.01.0005 Mercedes-Benz Compatible Fan Belt Tensioner

331.01.0005

Summary

This fan belt tensioner is engineered for heavy commercial vehicle cooling systems, ensuring precise belt tension for Mercedes-Benz engines such as the OM 926 LA and OM 457 LA. Designed to withstand heavy-duty service conditions, it maintains optimal fan speed to prevent engine overheating. Equivalent to OE Dayco APV2803 and Mercedes-Benz 0002001070.

Product identifiers
EAN Code8699031092430
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Compatible OEM Codes

  • MERCEDES BENZ
    • 000 200 15 70
    • 000 200 10 70
  • DAYCO
    • APV2803

Description

What does a fan belt tensioner do?

The fan belt tensioner is a critical component within the engine cooling system that maintains the correct tension on the drive belt. By utilizing a spring-loaded mechanism, this unit automatically compensates for belt stretch caused by heat and mileage, ensuring the fan rotates at its designed speed to provide consistent cooling.

Vehicle and engine compatibility

This component is specifically compatible with various Mercedes-Benz models, including the Conecto, Integro, Citaro, and Tourismo series. It is designed to work seamlessly with engines such as the OM 926 LA and OM 457 LA, providing reliable performance in heavy commercial vehicle applications.

Installation and maintenance

For workshop technicians, it is essential to verify the engine code and mounting type during installation. Ensuring the tensioner is correctly aligned prevents premature belt wear and potential slippage. Always check the pulley diameter and rib count to match the specific engine configuration of the vehicle.

Selection guidance

Maintaining the cooling system by inspecting tensioner components helps prevent engine overheating in buses and heavy trucks. Check the compatibility list to ensure this part meets your specific vehicle requirements.

OE cross-reference

331.01.0005 (Fan Belt Tensioner Fan) is the equivalent of the Dayco and Mercedes-Benz OE numbers. This part directly replaces Dayco OE number APV2803. It also replaces Mercedes-Benz OE numbers 0002001070, 0002001570.

Other OEMs

DAYCO

  • APV2803

MERCEDES BENZ

  • A0002001570
  • A0002001070
  • 0002001570
  • 0002001070
  • 000.200.1570
  • 000.200.15.70
  • 000.200.1070
  • 000.200.10.70
  • 000 200 1570
  • 000 200 1070
  • 000 200 15 70
  • 000 200 10 70

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
DAYCO
MERCEDES BENZ CITARO (O 530) Citaro C OM 926 LA
MERCEDES BENZ CITARO 2 CITARO OM 926 LA
MERCEDES BENZ CONECTO (O 345) CONECTO 12M OM 926 LA
MERCEDES BENZ INTEGRO (O 550) Integro OM 926 LA
MERCEDES BENZ INTEGRO (O 550) Integro L OM 926 LA
MERCEDES BENZ INTEGRO (O 550) Integro M OM 926 LA
MERCEDES BENZ INTOURO Intouro OM 457 HLA
MERCEDES BENZ INTOURO Intouro OM 926 LA
MERCEDES BENZ INTOURO Intouro E OM 457 HLA
MERCEDES BENZ INTOURO Intouro E OM 926 LA
MERCEDES BENZ INTOURO Intouro M OM 457 HLA
MERCEDES BENZ INTOURO Intouro M OM 926 LA
MERCEDES BENZ INTOURO Intouro ME OM 457 HLA
MERCEDES BENZ INTOURO Intouro ME OM 926 LA
MERCEDES BENZ TOURINO (O 510) TOURINO OM 926 LA
MERCEDES BENZ TOURISMO (O 350) Tourismo 16 RHD OM 457 LA
MERCEDES BENZ TOURISMO (O 350) Tourismo 17 RHD OM 457 LA
MERCEDES BENZ TRAVEGO (O 580) O 580-15 RH/RHD OM 457 hLA
MERCEDES BENZ TRAVEGO (O 580) O 580-15 RH/RHD OM 457 LA
MERCEDES BENZ TRAVEGO (O 580) O 580-15 RHD OM 457 LA
MERCEDES BENZ TRAVEGO (O 580) O 580-15 SHD OM 457 LA
MERCEDES BENZ TRAVEGO (O 580) O 580-16 RHD OM 457 LA
MERCEDES BENZ TRAVEGO (O 580) O 580-17 RHD OM 457 LA

FAQ

What is the function of a fan belt tensioner?
It is a spring-loaded unit that keeps the fan belt at the correct tension by compensating for belt elongation, preventing slippage and overheating.
Which Mercedes-Benz engines are compatible with this part?
This part is compatible with Mercedes-Benz engines including the OM 926 LA and OM 457 LA series used in various bus models.
How can I know if my fan belt tensioner needs replacement?
Technicians should look for signs of uneven belt wear, excessive noise from the pulley bearing, or visible slack in the drive belt.
Can I select a tensioner based only on the vehicle model?
It is best to verify both the vehicle model and the specific engine code to ensure correct pulley diameter and mounting geometry.
What are the OE reference numbers of this part?
331.01.0005 directly replaces Dayco OE number APV2803. It also replaces Mercedes-Benz OE numbers 0002001070, 0002001570.