Tensioner 57109243M For Audi

The DUHUI Bearing 57109243M timing belt tensioner is an OE-spec replacement component for the timing belt system on select Audi and Volkswagen models equipped with 3.0 TDI V6 diesel engines. This automatic tensioner maintains proper timing belt tension, ensuring accurate valve and piston synchronization and preventing catastrophic engine damage if belt failure occurs. Manufactured to match original equipment specifications including 57109243M, 057109243M, 059109243N, and 059109243P, this unit is a critical component for the VW Group EA896 engine family.
Technical Specifications
| Specification | Value / Detail |
|---|---|
| DH Code | |
| Part Number | 57109243M |
| Outer Diameter | 67.00 mm (2.638 inch) |
| Height 1 | 28.00 mm (1.102 inch) |
| Height 2 | 36.00 mm (1.417 inch) |
| Inner Diameter (Bore) | 8.00 mm (0.315 inch) |
| Product Type | Timing Belt Tensioner / Automatic Tensioner Pulley |
Important: All information on this page is for reference only. Please verify OE numbers, dimensions, and vehicle fitment against your original part before ordering. Contact us for fitment confirmation.
DH Code & OE Numbers & Reference Numbers
DH Code:
OE Numbers: 57109243M, 057109243M, 059109243N, 059109243P
Reference Numbers (Interchange):
ATB: ATB2507
INA: 531077610, VKM11332
GATES: GT35771, T43152
Vehicle Fitment
This timing belt tensioner is designed for Audi, Volkswagen, and Porsche models equipped with 3.0 TDI and 2.7 TDI V6 diesel engines (EA896 engine family):
AUDI A4 (B7, 8EC): 3.0 TDI quattro 2004-2008
AUDI A4 (B8, 8K): 3.0 TDI quattro 2007-2015
AUDI A5 (8T): 3.0 TDI quattro 2007-2016
AUDI A6 (C6, 4F): 3.0 TDI quattro 2004-2011
AUDI A6 (C7, 4G): 3.0 TDI quattro 2011-2018
AUDI A8 (D3, D4): 3.0 TDI quattro 2004-2017
AUDI Q5 (8R): 3.0 TDI quattro 2008-2017
AUDI Q7 (4L): 3.0 TDI quattro 2005-2015
VOLKSWAGEN: Touareg 3.0 TDI 2004-2010, Phaeton 3.0 TDI 2005-2009
PORSCHE: Cayenne 3.0 TDI 2007-2010
Please verify OE number, dimensions and vehicle configuration before ordering.
Product Features
- Direct OE replacement for VW Group applications with 57109243M / 057109243M / 059109243N.
- Designed for timing belt tensioning on 3.0 TDI V6 diesel engines, maintaining proper belt tension to ensure accurate valve and piston synchronization.
- Cross-references with multiple leading brands including INA VKM11332 and GATES GT35771 for easy interchangeability in the aftermarket.
- Precision spring-loaded mechanism automatically adjusts belt tension as the timing belt stretches over time.
- OE-compatible replacement for original part numbers 57109243M, 057109243M, 059109243N, and 059109243P.
Installation Notes
- This tensioner is designed for the timing belt system on Audi and VW models equipped with 3.0 TDI V6 diesel engines (EA896 family).
- When replacing the tensioner, it is highly recommended to replace the timing belt, idler pulleys, and water pump as well – timing belt failure can cause serious damage to valves and pistons.
- Before removal, locate the OE belt routing diagram or make a sketch of the belt path.
- Use appropriate tools to safely relieve spring tension – never cut or pry the belt off while under tension.
- Ensure the tensioner mounting surface is clean and free of debris before installing the new unit.
- Torque mounting bolts to manufacturer specifications – verify appropriate torque for your specific engine application.
- After installation, rotate the engine by hand to verify proper belt tension and alignment, then start the engine briefly and recheck.
About DUHUI Bearing
Manufactured by DUHUI Bearing – an automotive bearing supplier established in Zhejiang, China, in 2003. DUHUI produces timing belt tensioners, idler pulleys, and wheel bearing assemblies to OE specifications. Contact us

