Dayco Automatic Belt Tensioner For LEXUS ES350 GS250 GS300 GS350 GS450h IS250 IS350

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:

Lexus > ES350 > Nov 2013 - , 3.5L, V6, 24V, DOHC VVT, MPFI, GSV60R, 204kW, EngCode: 2GRFE

 

Lexus > GS250 > Apr 2012 - , 2.5L, V6, 24V, DOHC, MPFI, GRL11R, 154kW, EngCode: 4GRFSE

Lexus > GS300 > Mar 2005 - Mar 2012, 3.0L, V6, 24V, DOHC, MPFI, GRS190R, 183kW, EngCode: 3GR-FSE

Lexus > GS350 > Aug 2005 - Dec 2011, 3.5L, V6, 24V, DOHC VVT, MPFI, GRS191R, 232kW, EngCode: 2GRFSE

Lexus > GS350 > Aug 2005 - Dec 2011, 3.5L, V6, 24V, DOHC VVT, MPFI, GRS196R, 232kW, EngCode: 2GRFSE

Lexus > GS350 > Apr 2012 - Nov 2015, 3.5L, V6, 24V, DOHC VVT, MPFI, GRL10R, 233kW, EngCode: 2GRFSE

Lexus > GS350 > Dec 2015 - , 3.5L, V6, 24V, DOHC VVT, MPFI, GRL12R, 233kW, EngCode: 2GRFKE

Lexus > GS450h > May 2012 - , 3.5L, V6, 24V, DOHC, MPFI, GWL10R, 215kW, EngCode: 2GR-FXE

Lexus > IS250 > Aug 2005 - Apr 2013, 2.5L, V6, 24V, DOHC, Direct Inj., GSE25R, 153kW, EngCode: 4GR-FSE

Lexus > IS250 > Nov 2005 - Jun 2013, 2.5L, V6, 24V, DOHC, Direct Inj., GSE20R, 153kW, EngCode: 4GR-FSE

Lexus > IS250 > Aug 2013 - Jun 2015, 2.5L, V6, 24V, DOHC, Direct Inj., GSE30R, 153kW, EngCode: 4GR-FSE

Lexus > IS350 > Oct 2010 - Jun 2013, 3.5L, V6, 24V, DOHC, MPFI, GSE21R, 233kW, EngCode: 2GR-FSE

Lexus > IS350 > Jul 2013 - , 3.5L, V6, 24V, DOHC, MPFI, GSE31R, 233kW, EngCode: 2GR-FSE

Lexus > RX350 > Feb 2006 - Jan 2009, 3.5L, V6, 24V, DOHC, MPFI, GSU35R, 203kW, EngCode: 2GR-FE

Lexus > RX350 > Feb 2009 - Oct 2015, 3.5L, V6, 24V, DOHC VVT, MPFI, GGL15R, 204kW, EngCode: 2GR-FE

Toyota > Alphard > May 2008 - Jan 2015, 3.5L, V6, 24V, DOHC VVT, MPFI, GGH20R, 208kW, EngCode: 2GRFE

Toyota > Alphard > May 2008 - Jan 2015, 3.5L, V6, 24V, DOHC VVT, MPFI, GGH25R, 208kW, EngCode: 2GRFE, 4WD

Toyota > Aurion > Oct 2006 - Mar 2012, 3.5L, V6, 24V, DOHC, MPFI, GSV40R, 200kW, EngCode: 2GR-FE

Toyota > Aurion > Aug 2007 - Apr 2009, 3.5L, V6, 24V, DOHC, SCMPFI, GSV40R TRD, 241kW, EngCode: 2GR-FE, Supercharged

Toyota > Aurion > Apr 2012 - , 3.5L, V6, 24V, DOHC, MPFI, GSV50R, 200kW, EngCode: 2GR-FE

Toyota > Aurion TRD > Aug 2007 - Apr 2009, 3.5L, V6, 24V, DOHC, SCMPFI, GSV40R TRD, 241kW, EngCode: 2GR-FE, Supercharged

Toyota > Estima > Jan 2006 - , 3.5L, V6, 24V, DOHC VVT, MPFI, GSR50R, 208kW, EngCode: 2GRFE, Import

Toyota > Estima > Jan 2006 - , 3.5L, V6, 24V, DOHC VVT, MPFI, GSR55R, 208kW, EngCode: 2GRFE, Import, 4WD

Toyota > Harrier > Jan 2006 - Dec 2008, 3.5L, V6, 24V, DOHC, MPFI, GSU30R, 208kW, EngCode: 2GR-FE, Japan Import

Toyota > Harrier > Jan 2006 - Dec 2008, 3.5L, V6, 24V, DOHC, MPFI, GSU35R, 208kW, EngCode: 2GR-FE, Japan Import

Toyota > Kluger > Aug 2007 - Feb 2014, 3.5L, V6, 24V, DOHC, MPFI, GSU40R, 201kW, EngCode: 2GR-FE

Toyota > Kluger > Aug 2007 - Feb 2014, 3.5L, V6, 24V, DOHC, MPFI, GSU45R, 201kW, EngCode: 2GR-FE

Toyota > Kluger > Mar 2014 - Feb 2017, 3.5L, V6, 24V, DOHC, MPFI, GSU50R, 201kW, EngCode: 2GR-FE

Toyota > Kluger > Mar 2014 - Feb 2017, 3.5L, V6, 24V, DOHC, MPFI, GSU55R, 201kW, EngCode: 2GR-FE

Toyota > Landcruiser Prado > Sep 2009 - , 4.0L, V6, 24V, DOHC, MPFI, GRJ151, 203kW, EngCode: 1GR-FE, Japan Import NZ

Toyota > Mark X > Sep 2007 - Oct 2013, 3.5L, 6cyl, 24V, DOHC VVT, MPFI, GGA10R, 208kW, EngCode: 2GRFE

Toyota > RAV-4 > Oct 2007 - Jan 2013, 3.5L, V6, 24V, DOHC VVT, MPFI, GSA33R, 201kW, EngCode: 2GR-FE, 4WD

Toyota > Tarago > Feb 2007 - , 3.5L, V6, 24V, DOHC, MPFI, GSR50R, 202kW, EngCode: 2GR-FE

Toyota > Vellfire > May 2008 - Jan 2015, 3.5L, V6, 24V, DOHC VVT, GGH20R, 208kW, EngCode: 2GR-FE, Japan Import

Toyota > Vellfire > May 2008 - Jan 2015, 3.5L, V6, 24V, DOHC VVT, GGH25R, 208kW, EngCode: 2GR-FE, Japan Import, 4WD

Toyota > Vellfire > Jan 2015 - , 3.5L, V6, 24v, DOHC VVT, GGH30R, 221kW, EngCode: 2GR-FE, Japan Import

Toyota > Vellfire > Jan 2015 - , 3.5L, V6, 24v, DOHC VVT, GGH35R, 221kW, EngCode: 2GR-FE, Japan Import, AWD