Tensioner 06B109477A For Audi

The DUHUI Bearing 06B109477A timing belt tensioner is a direct OE-replacement component for the timing belt system on select Audi and Volkswagen models equipped with 1.8T 20V engines. This 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 06B109477A, this unit is a critical component for timing belt replacement service on the EA113 engine family.

Technical Specifications

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: 06B109477A

Reference Numbers (Interchange):
INA: 531 0171 10
GATES: T42051
SKF: VKM21006

Vehicle Fitment

AUDI A4 CABRIOLET (B6, 8H): 1.8T 2003-2006

AUDI A4 (B6, 8E2): 1.8T 2000-2005

AUDI A4 (B5, 8D2): 1.8T 1994-2001

AUDI A6 (C5): 1.8T 1997-2005

AUDI TT (8N): 1.8T 1998-2006

AUDI A3 (8L): 1.8T 1998-2003

VOLKSWAGEN: Passat 1.8T 1996-2005, Golf IV 1.8T 1997-2003, Bora 1.8T 1998-2005

Please verify OE number, dimensions and vehicle configuration before ordering.

Product Features

• Direct OE replacement for VW Group applications with 06B109477A.
• Designed for timing belt tensioning on 1.8T 20V engines, maintaining proper belt tension to ensure accurate valve and piston synchronization.
• Cross-references with multiple leading brands including INA 531017110 and GATES T42051 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 number 06B109477A.

Installation Notes

• This tensioner is designed for the timing belt system on VW Group models equipped with 1.8T 20V engines.
• When replacing the tensioner, it is highly recommended to replace the timing belt and water pump as well – timing belt failure can cause serious damage to valves and pistons on these interference engines.
• 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.
• 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