Dayco Automatic Belt Tensioner Audi 100 80 A4 A6 A8 Allroad Quattro RS4

Dayco No Slack Automatic Belt Tensioner

Designed to maintain constant tension on serpentine belt drives
Serpentine belt drives consist of a single belt that powers most, if not all, of the engine’s accessories.

To maintain the proper tension throughout the drive, an automatic, spring-loaded tensioner is incorporated into the drive system geometry.

Dayco’s Automatic Belt Tensioner features a patented “flat spring” design that’s engineered to provide less operating range variations in tension.

This reduces the risk of premature accessory bearing failure due to high tension when a new belt is installed.

It also lessens the risk of belt squeal and slippage, or poor accessory performance caused by low tension after the belt begins to stretch and wear. A Teflon strip wound within the spring resists abrasion.

The flat spring itself is coated to resist rust.

Other superior design features include a steel locator pin (where the application demands).

A heavy-duty cast aluminium spring case resists cracking and fatigue. The heavy-duty cast aluminium arm offers additional strength and less distortion.

An aluminium retainer ring locks the spring case and arm together, and seals against corrosion.

A steel pivot tube (where the application demands) provides additional strength for critical torque requirements.

A thermoplastic rubber “spring slot plug” keeps out harmful contaminants. The lubricated nylon “pivot tube bushing” and “spring bushing” promote quieter performance.

A rubber “O” ring seals against dust and grime.

The zinc coated mounting bolt resists rust, and is concentric for a more even degree of constant tension.

In order to meet OEM performance standards, Dayco Automatic Tensioners come with either a glass-filled polymer (plastic) or steel pulley, that features a dust cover to protect against contaminants.

Fits the following Make, Model, Series:

Audi > 100 > Jan 1992 - Nov 1994, 2.6L, V6, 12V, SOHC, MPFI, C4, 110kW, EngCode: ABC

Audi > 100 > Jan 1992 - Nov 1994, 2.8L, V6, 12V, SOHC, EFI, C4, 128kW, EngCode: AAH

Audi > 80 > Aug 1992 - Sep 1993, 2.6L, V6, 12V, SOHC, MPFI, EngCode: ABC

Audi > 80 > Aug 1992 - Sep 1993, 2.6L, V6, 12V, SOHC, MPFI, Quattro, EngCode: ABC

Audi > 80 > Aug 1992 - Sep 1993, 2.8L, V6, 12V, SOHC, MPFI, EngCode: AAH

Audi > A4 > Feb 1996 - Mar 1998, 2.6L, V6, 12V, SOHC, MPFI, B5, 110kW, EngCode: ABC

Audi > A4 > Jan 1997 - Jun 2001, 2.8L, V6, 30V, DOHC, MPFI, B5, 142kW, EngCode: APR

Audi > A4 > Jan 1997 - Jul 2001, 2.8L, V6, 30V, DOHC, MPFI, B5, 142kW, EngCode: ACK

Audi > A4 > Feb 1998 - Jul 2001, 2.4L, V6, 30V, DOHC, MPFI, B5, 121kW, EngCode: APS

Audi > A4 > Feb 1998 - Jul 2003, 2.4L, V6, 30V, DOHC, MPFI, 121kW, EngCode: AGA

Audi > A4 > Oct 1998 - May 1999, 2.8L, V6, 30V, DOHC, MPFI, B5, 142kW, EngCode: ACK

Audi > A4 > Apr 2002 - Mar 2005, 2.4L, V6, 30V, DOHC, MPFI, B6, 125kW, EngCode: BDV

Audi > A6 > Nov 1994 - Mar 1997, 2.6L, V6, 30V, DOHC, MPFI, 142kW, EngCode: ACK

Audi > A6 > Nov 1994 - Nov 1997, 2.6L, V6, 12V, SOHC, MPFI, C4, 110kW, EngCode: ABC

Audi > A6 > Nov 1997 - Jun 2000, 2.8L, V6, 30V, DOHC, MPFI, C4, 142kW, EngCode: ACK

Audi > A6 > Nov 1997 - Jan 2002, 2.4L, V6, 30V, DOHC, MPFI, C5, 121kW, EngCode: AGA

Audi > A6 > Nov 1997 - Jan 2002, 2.8L, V6, 30V, DOHC, MPFI, C5, 142kW, EngCode: ACK

Audi > A6 > 1999 - 2001, 2.4L, V6, 30V, DOHC, MPFI, C5, 121kW, EngCode: APS

Audi > A6 > 1999 - 2001, 2.8L, V6, 30V, DOHC, MPFI, C5, 142kW, EngCode: APR

Audi > A6 > Feb 2002 - Feb 2004, 2.4L, V6, 30V, DOHC, MPFI, C5, 121kW, EngCode: AGA

Audi > A6 > Feb 2002 - Sep 2004, 2.7L, V6, 30V, DOHC, TTMPFI, Twin Turbo, C5, 184kW, EngCode: ARE

Audi > A8 > May 1995 - Dec 1996, 2.8L, V6, 12V, SOHC, MPFI, D2, 128kW, EngCode: AAH

Audi > Allroad Quattro > Feb 2000 - Dec 2005, 2.7L, V6, 30V, DOHC, MPFI, C5, 184kW, EngCode: BES

Audi > Allroad Quattro > Feb 2001 - Dec 2006, 2.7L, V6, 30V, DOHC, MPFI, C5, 184kW, EngCode: ARE

Audi > Cabriolet > Oct 1993 - Nov 1999, 2.6L, V6, 12V, SOHC, MPFI, 110kW, EngCode: ABC

Audi > RS4 > Nov 2000 - Jul 2001, 2.7L, V6, 30V, DOHC, TTMPFI, Twin Turbo, B5, 280kW, EngCode: ASJ

Audi > S4 > Jul 1993 - Feb 1995, 2.2L, 5 cyl, 20V, DOHC, TMPFI, Turbo, C4, 169kW, EngCode: AAN

Audi > S4 > Dec 1999 - Aug 2003, 2.7L, V6, 30V, DOHC, TTMPFI, Twin Turbo, B5, 195kW, EngCode: AGB

Audi > S4 > Dec 1999 - Aug 2003, 2.7L, V6, 30V, DOHC, TTMPFI, Twin Turbo, B5, 195kW, EngCode: AZB

Skoda > Superb > 2003 - 2007, 2.8L, V6, 30V, DOHC, MPFI, 3U, 142kW, EngCode: BBG, NZ

Volkswagen > Passat > 1998 - 1999, 1.6L, 4cyl, 16V, DOHC, EFI, 74kW, EngCode: AHL

Volkswagen > Passat > Mar 1998 - Apr 2001, 2.8L, V6, 30V, DOHC, MPFI, 3B, 142kW, EngCode: ACK

Volkswagen > Passat > Mar 1999 - Apr 2001, 2.8L, V6, 30V, DOHC, MPFI, 3B, 142kW, EngCode: APR

Volkswagen > Passat > May 2001 - Jul 2004, 2.8L, V6, 30V, DOHC, MPFI, 3B, 142kW, EngCode: AMX

Volkswagen > Passat > May 2001 - Feb 2006, 2.8L, V6, 30V, DOHC, MPFI, 3B, 140kW, EngCode: BBG

Volkswagen > Passat > May 2003 - Aug 2004, 4.0L, V8, 32V, DOHC, EFI, 3B, 202kW, EngCode: BDN