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 > Mar 2008 - Jan 2010, 1.9L, 4 cyl, 8V, SOHC, DTFI, Turbo, Diesel, 8P, 77kW, EngCode: BLSSeat > Altea > 2006 - , 2.0L, 4 cyl, 16V, SOHC, DTFI, Turbo, Diesel, 5P, 103kW, EngCode: BMM
Skoda > Octavia > 2006 - Aug 2010, 2.0L, 4 cyl, 8V, SOHC, DTFI, Turbo, Diesel, 1Z, 103kW, EngCode: BMM
Skoda > Octavia > Oct 2007 - Jul 2011, 1.9L, 4 cyl, 8V, SOHC, DTFI, Turbo, Diesel, 1Z, 77kW, EngCode: BXE
Volkswagen > Caddy > Jan 2005 - Jul 2006, 1.9L, 4 cyl, 8V, SOHC, Turbo, Diesel, 2K, 77kW, EngCode: BJB
Volkswagen > Caddy > Aug 2006 - Nov 2010, 1.9L, 4 cyl, 8V, SOHC, Turbo, Diesel, 2K, 77kW, EngCode: BLS
Volkswagen > Citivan > Jul 2006 - May 2010, 1.9L, 4 cyl, 8V, SOHC, DTFI, Turbo, Diesel, T5, EngCode: AXC
Volkswagen > EOS > Mar 2007 - Jul 2008, 2.0L, 4 cyl, 8V, SOHC, DTFI, Turbo, Diesel, 103kW, EngCode: BMM
Volkswagen > Golf > Jan 2004 - Nov 2008, 2.0L, 4 cyl, 16V, DOHC, DFI, Type 5, 1K, 55kW, EngCode: BDK, NZ
Volkswagen > Golf > Apr 2005 - Jul 2007, 1.9L, 4 cyl, 8V, SOHC, DTFI, Diesel, Type 5, 1K, 77kW, EngCode: BXE
Volkswagen > Golf > Sep 2005 - Jul 2007, 2.0L, 4 cyl, 16V, SOHC, DTFI, Turbo, Diesel, Type 5, 103kW, EngCode: BMM
Volkswagen > Golf > May 2007 - Jul 2009, 1.9L, 4 cyl, 8V, SOHC, DTFI, Turbo, Diesel, Type 5, 1K, 77kW, EngCode: BLS
Volkswagen > Jetta > 2004 - 2007, 2.0L, 4 cyl, 8V, SOHC, Di, Turbo, Diesel, TYPE 5, 103kW, EngCode: BMM, NZ
Volkswagen > Jetta > Aug 2005 - Jun 2009, 1.9L, 4 cyl, 8V, SOHC, DTFI, Turbo, Diesel, 1K, 77kW, EngCode: BXE
Volkswagen > Jetta > 2006 - 2007, 1.9L, 4 cyl, 8V, SOHC, DTFI, Diesel, 1K, 77kW, EngCode: BLS
Volkswagen > Passat > Mar 2006 - Jul 2008, 2.0L, 4 cyl, 16V, DOHC, DTFI, Turbo, Diesel, 3C, 103kW, EngCode: BMP
Volkswagen > Touran > 2007 - 2008, 2.0L, 4 cyl, 8V, SOHC, DTFI, Turbo, Diesel, 103kW, EngCode: BMM, NZ
Volkswagen > Transporter > Aug 2004 - Jul 2006, 1.9L, 4 cyl, 8V, SOHC, DTFI, Turbo, Diesel, T5, 77kW, EngCode: AXB
Volkswagen > Transporter > Aug 2004 - Jul 2006, 1.9L, 4 cyl, 8V, SOHC, DTFI, Turbo, Diesel, T5, 63kW, EngCode: AXC
Volkswagen > Transporter > Jul 2006 - May 2010, 1.9L, 4 cyl, 8V, SOHC, DTFI, Turbo, Diesel, T5, 7H, 63kW, EngCode: BRR
Volkswagen > Transporter > Aug 2006 - Feb 2010, 1.9L, 4 cyl, 8V, SOHC, DTFI, Turbo, Diesel, T5, 77kW, EngCode: BRS
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