Dayco Automatic Belt Tensioner Ford Explorer F150 F250 F350 Fairlane Fairmont

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:

Ford > Explorer > Oct 2001 - Feb 2003, 4.6L, V8, 16V, SOHC, MPFI, UT, 178kW, EngCode: 2ZA

Ford > Explorer > Mar 2003 - Nov 2003, 4.6L, V8, 16V, SOHC, MPFI, UX, 178kW, EngCode: 2ZA

Ford > Explorer > Nov 2003 - Jan 2008, 4.6L, V8, 16V, SOHC, MPFI, UZ, 178kW, EngCode: 2ZA

Ford > F150 > 1999 - 2004, 5.4L, V8, 16V, SOHC, MPFI, 283kW, EngCode: 330, Supercharged

Ford > F150 > 2004 - 2010, 5.4L, V8, 24V, SOHC, MPFI, 224kW, EngCode: 330

Ford > F250 > Nov 2003 - Sep 2007, 5.4L, V8, 16V, SOHC, MPFI, RM, EngCode: 1B

Ford > F350 > Jul 2001 - Dec 2002, 5.4L, V8, 16V, SOHC, MPFI, RM, EngCode: 1B

Ford > Fairlane > Jan 2003 - Sep 2005, 5.4L, V8, 24V, SOHC, MPFI, BA, 220kW, EngCode: Barra 220

Ford > Fairlane > Oct 2005 - Dec 2007, 5.4L, V8, 24V, SOHC, MPFI, BF, 230kW, EngCode: Barra 230

Ford > Fairmont > Jan 2003 - Oct 2005, 5.4L, V8, 24V, SOHC, MPFI, BA, 220kW, EngCode: Barra 220

Ford > Fairmont > Nov 2005 - Apr 2008, 5.4L, V8, 24V, SOHC, MPFI, BF, 230kW, EngCode: Barra 230

Ford > Falcon > Jan 2003 - Oct 2005, 5.4L, V8, 24V, SOHC, MPFI, BA, 220kW, EngCode: Barra 220

Ford > Falcon > Jan 2003 - Oct 2005, 5.4L, V8, 32V, DOHC, MPFI, BA XR8, 260kW, EngCode: Boss 260

Ford > Falcon > Nov 2005 - Apr 2008, 5.4L, V8, 24V, SOHC, MPFI, BF, 230kW, EngCode: Barra 230

Ford > Falcon > Nov 2005 - Apr 2008, 5.4L, V8, 32V, DOHC, MPFI, BF XR8, 260kW, EngCode: Boss 260

Ford > Falcon > May 2008 - Sep 2011, 5.4L, V8, 32V, DOHC, MPFI, FG XR8, 290kW, EngCode: Boss 290

Ford > LTD > Jan 2003 - Sep 2005, 5.4L, V8, 24V, SOHC, MPFI, BA, EngCode: Barra 220

Ford > LTD > Oct 2005 - Dec 2007, 5.4L, V8, 24V, SOHC, MPFI, BF, EngCode: Barra 230

Ford > Mustang > 2000 - 2004, 4.6L, V8, 32V, DOHC, MPFI, EngCode: Modular

Ford > Mustang > 2003 - 2005, 4.6L, V8, 32V, DOHC, SCMPFI, EngCode: Modular, Supercharged

Ford > Mustang > 2005 - 2010, 4.6L, V8, 32V, DOHC, MPFI, EngCode: Modular

Ford > Mustang > 2005 - 2010, 4.0L, V6, 12V, DOHC, MPFI, EngCode: 245

Ford > Mustang > 2010 - 2014, 5.0L, V8, 32V, DOHC, MPFI, GT, 307kW, EngCode: Coyote

Ford > Mustang > 2013 - 2014, 5.8L, V8, 32V, DOHC, MPFI, SHELBY GT500, 494kW, EngCode: Modular, Supercharged

Ford > Pursuit > Mar 2003 - Sep 2005, 5.4L, V8, 32V, DOHC, MPFI, BA, EngCode: Boss 290

Ford > Pursuit > Oct 2005 - Apr 2008, 5.4L, V8, 32V, DOHC, MPFI, BF, EngCode: Boss 290

FPV > Cobra > Oct 2007 - May 2008, 5.4L, V8, 32V, DOHC, MPFI, BF, 302kW, EngCode: Boss 302

FPV > Force 8 > Nov 2006 - Jan 2008, 5.4L, V8, 32V, DOHC, MPFI, BF, 290kW, EngCode: Boss 290

FPV > Force 8 > Jan 2008 - May 2008, 5.4L, V8, 32V, DOHC, MPFI, BF, 302kW, EngCode: Boss 302

FPV > GS > Sep 2009 - Sep 2010, 5.4L, V8, 32V, DOHC, MPFI, FG, 302kW, EngCode: Boss 302

FPV > GT > Oct 2005 - Jan 2008, 5.4L, V8, 32V, DOHC, MPFI, BF, EngCode: Boss 290

FPV > GT > Jan 2008 - May 2008, 5.4L, V8, 32V, DOHC, MPFI, BF, 302kW, EngCode: Boss 302

FPV > GT > Jun 2008 - Sep 2010, 5.4L, V8, 32V, DOHC, MPFI, FG, 315kW, EngCode: Boss 315

FPV > GT Cobra > Oct 2007 - May 2008, 5.4L, V8, 32V, DOHC, MPFI, BF, 302kW, EngCode: Boss 302

FPV > GT-E > Jun 2008 - Sep 2010, 5.4L, V8, 32V, DOHC, MPFI, FG, 315kW, EngCode: Boss 315

FPV > GT-P > Mar 2003 - Sep 2005, 5.4L, V8, 32V, DOHC, MPFI, BA, 290kW, EngCode: Boss 290

FPV > GT-P > Oct 2005 - Jan 2008, 5.4L, V8, 32V, DOHC, MPFI, BF, 290kW, EngCode: Boss 290

FPV > GT-P > Jan 2008 - May 2008, 5.4L, V8, 32V, DOHC, MPFI, BF, 290kW, EngCode: Boss 302

FPV > GT-P > Jun 2008 - Sep 2010, 5.4L, V8, 32V, DOHC, MPFI, FG, 315kW, EngCode: Boss 315

FPV > Pursuit > Mar 2003 - Sep 2005, 5.4L, V8, 32V, DOHC, MPFI, BA, 290kW, EngCode: Boss 290

FPV > Pursuit > Oct 2005 - Jan 2008, 5.4L, V8, 32V, DOHC, MPFI, BF, 290kW, EngCode: Boss 290

FPV > Pursuit > Jan 2008 - May 2008, 5.4L, V8, 32V, DOHC, MPFI, BF, 302kW, EngCode: Boss 302

FPV > Pursuit > Jun 2008 - Oct 2014, 5.4L, V8, 32V, DOHC, MPFI, FG, 315kW, EngCode: Boss 315

FPV > Super Pursuit > Apr 2005 - Sep 2005, 5.4L, V8, 32V, DOHC, MPFI, BA, 290kW, EngCode: Boss 290

FPV > Super Pursuit > Oct 2005 - Jan 2008, 5.4L, V8, 32V, DOHC, MPFI, BF, 290kW, EngCode: Boss 290

FPV > Super Pursuit > Jan 2008 - May 2008, 5.4L, V8, 32V, DOHC, MPFI, BF, 302kW, EngCode: Boss 302

FPV > Super Pursuit > Jun 2008 - Sep 2010, 5.4L, V8, 32V, DOHC, MPFI, FG, 315kW, EngCode: Boss 315