Dayco Automatic Belt Tensioner Audi A3 TT Skoda Superb Volkswagen CC Golf Passat

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 > A3 > Aug 2004 - Sep 2005, 3.2L, V6, 24V, DOHC, MPFI, 8P, 184kW, EngCode: BDB

Audi > A3 > Aug 2004 - Sep 2005, 3.2L, V6, 24V, DOHC, MPFI, 8P, 184kW, EngCode: BMJ

Audi > A3 > Feb 2005 - Jan 2009, 3.2L, V6, 24V, DOHC, MPFI, 8P, 184kW, EngCode: BUB

Audi > TT > Nov 2006 - May 2010, 3.2L, V6, 24V, DOHC, MPFI, 8J, 184kW, EngCode: BUB

Audi > TT > Jul 2009 - Jan 2016, 1.8L, 4 cyl, 16V, DOHC, TFSI, Turbo, 8J, 118kW, EngCode: CDAA

Skoda > Superb > May 2009 - May 2015, 3.6L, V6, 24V, DOHC, Direct Inj., 3T, 191kW, EngCode: CDVA

Volkswagen > CC > Jul 2012 - Dec 2017, 3.6L, V6, 24V, DOHC VVT, MPFI, 3C, 220kW, EngCode: BWS

Volkswagen > Golf > Jul 2006 - Mar 2010, 3.2L, V6, 24V, DOHC, MPFI, R32, 1K, Type 5, 184kW, EngCode: BUB

Volkswagen > Passat > Mar 2006 - Mar 2011, 3.2L, V6, 24V, DOHC, MPFI, B6, B7, 3C, 184kW, EngCode: AXZ

Volkswagen > Passat > Aug 2008 - Jan 2015, 3.6L, V6, 24V, DOHC, MPFI, B6, B7, 3C, 220kW, EngCode: BWS