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331.01.0027 Fan Belt Tensioner for Mercedes-Benz

331.01.0027

Summary

This high-strength fan belt tensioner is designed for heavy commercial vehicle cooling systems. It is compatible with Mercedes-Benz AXOR and ECONIC models, ensuring precise belt tension for engine stability. Engineered for durability in demanding environments. Equivalent to OE Dayco APV1093 and Mercedes-Benz 4572000270.

Product identifiers
EAN Code	8699031092782

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Compatible OEM Codes

MERCEDES BENZ
- 457 200 14 70
- 457 200 02 70
DAYCO
- APV1093

Description

What does a fan belt tensioner do?

This fan belt tensioner is a critical mechanical component within the cooling system of heavy commercial vehicles. It maintains the driving belt at the correct tension, ensuring the fan and pulley rotate without slippage or excessive wear. By providing balanced pressure, this unit prevents belt flutter and supports consistent engine cooling during heavy-duty operation.

Compatible vehicles and engines

This component is compatible with Mercedes-Benz AXOR and ECONIC trucks, including models featuring OM 457 LA, OM 906 LA, and OM 926 LA engines. It is also fitted to various Mercedes-Benz Axor configurations such as the 1843 LS and 2543 L series. Precise fitment ensures the cooling chain operates without interruption under high thermal loads.

Installation and maintenance

For workshop technicians, it is recommended to verify the engine code and pulley geometry during installation. When replacing the unit, check the condition of the belt and surrounding pulleys to prevent premature wear. Maintaining correct tension is vital for the longevity of the entire cooling assembly.

System reliability

The system ensures that the fan drive line remains stable even under high torque conditions. This part functions as a reliable replacement for worn tensioners in demanding service environments.

OE cross-reference

331.01.0027 (Fan Belt Tensioner Fan) is the equivalent of the Dayco and Mercedes-Benz OE numbers. This part directly replaces Dayco OE number APV1093. It also replaces Mercedes-Benz OE numbers 4572000270, 4572001470.

Other OEMs

DAYCO

APV1093

MERCEDES BENZ

A4572001470
A4572000270
4572001470
4572000270
457.200.1470
457.200.14.70
457.200.0270
457.200.02.70
457 200 1470
457 200 0270
457 200 14 70
457 200 02 70

Related Products

Repair Kits

Compatible Vehicles

Compatible Vehicles
Brand	Model	Model Type	Engine
DAYCO
MERCEDES BENZ	AXOR	1835 LS	OM 457 LA
MERCEDES BENZ	AXOR	1840 LS	OM 457 LA
MERCEDES BENZ	AXOR	1843 LS	OM 457 LA
MERCEDES BENZ	AXOR	2535 LS	OM 457 LA
MERCEDES BENZ	AXOR	2540 LS	OM 457 LA
MERCEDES BENZ	AXOR	2543 LS	OM 457 LA
MERCEDES BENZ	AXOR 2	1835 LS	OM 457 LA
MERCEDES BENZ	AXOR 2	1836 LS	OM 457 LA
MERCEDES BENZ	AXOR 2	1840 LS	OM 457 LA
MERCEDES BENZ	AXOR 2	1843 LS	OM 457 LA
MERCEDES BENZ	AXOR 2	2436 LS	OM 457 LA
MERCEDES BENZ	AXOR 2	2443 LS	OM 457 LA
MERCEDES BENZ	AXOR 2	2535 L	OM 457 LA
MERCEDES BENZ	AXOR 2	2535 LS	OM 457 LA
MERCEDES BENZ	AXOR 2	2536 L	OM 457 LA
MERCEDES BENZ	AXOR 2	2536 LL	OM 457 LA
MERCEDES BENZ	AXOR 2	2536 LS	OM 457 LA
MERCEDES BENZ	AXOR 2	2540 L	OM 457 LA
MERCEDES BENZ	AXOR 2	2540 LS	OM 457 LA
MERCEDES BENZ	AXOR 2	2543 L	OM 457 LA
MERCEDES BENZ	AXOR 2	2543 LS	OM 457 LA
MERCEDES BENZ	AXOR 2	2543 S	OM 457 LA
MERCEDES BENZ	AXOR 2	2635 B	OM 457 LA
MERCEDES BENZ	AXOR 2	2635 K	OM 457 LA
MERCEDES BENZ	AXOR 2	2636 B	OM 457 LA
MERCEDES BENZ	AXOR 2	2636 K	OM 457 LA
MERCEDES BENZ	AXOR 2	2640 B	OM 457 LA
MERCEDES BENZ	AXOR 2	2640 K	OM 457 LA
MERCEDES BENZ	AXOR 2	2643 B	OM 457 LA
MERCEDES BENZ	AXOR 2	2643 K	OM 457 LA
MERCEDES BENZ	AXOR 2	3235 B	OM 457 LA
MERCEDES BENZ	AXOR 2	3235 K	OM 457 LA
MERCEDES BENZ	AXOR 2	3236 B	OM 457 LA
MERCEDES BENZ	AXOR 2	3236 K	OM 457 LA
MERCEDES BENZ	AXOR 2	3240	OM 457 LA
MERCEDES BENZ	AXOR 2	3240 B	OM 457 LA
MERCEDES BENZ	AXOR 2	3240 K	OM 457 LA
MERCEDES BENZ	AXOR 2	3243	OM 457 LA
MERCEDES BENZ	AXOR 2	3243 B	OM 457 LA
MERCEDES BENZ	AXOR 2	3243 K	OM 457 LA
MERCEDES BENZ	AXOR 2	3335	OM 457 LA
MERCEDES BENZ	AXOR 2	3335 B	OM 457 LA
MERCEDES BENZ	AXOR 2	3335 K	OM 457 LA
MERCEDES BENZ	AXOR 2	3336 B	OM 457 LA
MERCEDES BENZ	AXOR 2	3336 K	OM 457 LA
MERCEDES BENZ	AXOR 2	3340	OM 457 LA
MERCEDES BENZ	AXOR 2	3340 B	OM 457 LA
MERCEDES BENZ	AXOR 2	3340 K	OM 457 LA
MERCEDES BENZ	AXOR 2	3341	OM 457 LA
MERCEDES BENZ	AXOR 2	3341 K	OM 457 LA
MERCEDES BENZ	AXOR 2	3343	OM 457 LA
MERCEDES BENZ	AXOR 2	3343 B	OM 457 LA
MERCEDES BENZ	AXOR 2	3343 K	OM 457 LA
MERCEDES BENZ	AXOR 2	4135 B	OM 457 LA
MERCEDES BENZ	AXOR 2	4135 K	OM 457 LA
MERCEDES BENZ	AXOR 2	4136 B	OM 457 LA
MERCEDES BENZ	AXOR 2	4136 K	OM 457 LA
MERCEDES BENZ	AXOR 2	4140 B	OM 457 LA
MERCEDES BENZ	AXOR 2	4140 K	OM 457 LA
MERCEDES BENZ	AXOR 2	4143 B	OM 457 LA
MERCEDES BENZ	AXOR 2	4143 K	OM 457 LA
MERCEDES BENZ	AXOR 2	LL	OM 457 LA
MERCEDES BENZ	AXOR 2	LLS	OM 457 LA
MERCEDES BENZ	ECONIC	1823 L	OM 906 LA
MERCEDES BENZ	ECONIC	1823 LL	OM 906 LA
MERCEDES BENZ	ECONIC	1828 L	M 906 LAG
MERCEDES BENZ	ECONIC	1828 L	OM 906 LA
MERCEDES BENZ	ECONIC	1828 L	OM 906 LA III/4
MERCEDES BENZ	ECONIC	1828 LL	M 906 LAG
MERCEDES BENZ	ECONIC	1828 LL	OM 906 LA
MERCEDES BENZ	ECONIC	1828 LL	OM 906 LA III/4
MERCEDES BENZ	ECONIC	1828 LL CNG	M 906 LAG
MERCEDES BENZ	ECONIC	1828 LS	M 906 LAG
MERCEDES BENZ	ECONIC	1833 L	OM 926 LA
MERCEDES BENZ	ECONIC	1833 LL	OM 926 LA
MERCEDES BENZ	ECONIC	2628 L	M 906 LAG
MERCEDES BENZ	ECONIC	2628 LL	OM 906 LA
MERCEDES BENZ	ECONIC	2628 LL	OM 906 LA III/4
MERCEDES BENZ	ECONIC	2628 LL CNG	M 906 LAG
MERCEDES BENZ	ECONIC	2633 L	OM 926 LA
MERCEDES BENZ	ECONIC	2633 LL	OM 926 LA

FAQ

What is the function of a fan belt tensioner?

The tensioner maintains constant, balanced pressure on the belt driving the fan, preventing slippage and ensuring efficient engine cooling.

Which Mercedes-Benz models are compatible?

This part is suitable for Mercedes-Benz AXOR (including 1843 LS, 2543 L) and ECONIC (including 2628 LL, 1833 L) models.

How can I ensure I am selecting the correct part?

Technicians should verify the engine code (such as OM 457 LA or OM 906 LA) and compare the mounting type with the original unit.

When should a tensioner be replaced?

Replacement is recommended if there is visible belt flutter, unusual noise from the pulley bearing, or if manual checks show insufficient tension.

What are the OE reference numbers of this part?

331.01.0027 directly replaces Dayco OE number APV1093. It also replaces Mercedes-Benz OE numbers 4572000270, 4572001470.