Dayco Automatic Belt Tensioner Lexus GS430 LS400 LS430 LX470 SC400 SC430 suits Toyota

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 > GS430 > Mar 2005 - Feb 2008, 4.3L, V8, 32V, DOHC, MPFI, UZS190R, 208kW, EngCode: 3UZ-FE

Lexus > LS400 > Dec 1989 - Oct 1994, 4.0L, V8, 32V, DOHC, MPFI, UCF10R, 190kW, EngCode: 1UZ-FE

Lexus > LS400 > Dec 1989 - Oct 1994, 4.0L, V8, 32V, DOHC, MPFI, UCF11R, 190kW, EngCode: 1UZ-FE

Lexus > LS400 > Nov 1994 - Nov 1997, 4.0L, V8, 32V, DOHC, MPFI, UCF20R, 204kW, EngCode: 1UZ-FE

Lexus > LS400 > Nov 1997 - Nov 2000, 4.0L, V8, 32V, DOHC, MPFI, UCF20R, 210kW, EngCode: 1UZ-FE

Lexus > LS430 > Nov 2000 - Mar 2007, 4.3L, V8, 32V, DOHC, MPFI, UCF30R, 207kW, EngCode: 3UZ-FE

Lexus > LX470 > May 1998 - Feb 2000, 4.7L, V8, 32V, DOHC, MPFI, UZJ100R, 170kW, EngCode: 2UZ-FE

Lexus > LX470 > Jan 2000 - Mar 2008, 4.7L, V8, 32V, DOHC, MPFI, UZJ100R, 170kW, EngCode: 2UZ-FE

Lexus > SC400 > May 1991 - Sep 1997, 4.0L, 8 cyl, 32V, DOHC, EFI, UZZ31, 193kW, EngCode: 1UZFE

Lexus > SC430 > Oct 2001 - Sep 2005, 4.3L, V8, 32V, DOHC, EFI, UZZ40R, 210kW, EngCode: 3UZ-FE

Lexus > SC430 > Oct 2005 - Jul 2010, 4.3L, V8, 32V, DOHC, EFI, UZZ40R, 210kW, EngCode: 3UZ-FE

Toyota > Aristo > Oct 1992 - Aug 1997, 4.0L, V8, 32V, DOHC, MPFI, UZS143R, 202kW, EngCode: 1UZ-FE, Import

Toyota > Celsior > Oct 1989 - Oct 1994, 4.0L, V8, 32V, DOHC, MPFI, UFC10, EngCode: 1UZ-FE, Import

Toyota > Celsior > Oct 1994 - Jul 2000, 4.0L, V8, 32V, DOHC, MPFI, UFC21, EngCode: 1UZ-FE, Import

Toyota > Celsior > Oct 1994 - Sep 2000, 4.0L, V8, 32V, DOHC, MPFI, UFC11, EngCode: 1UZ-FE, Import

Toyota > Crown > Aug 1989 - Oct 1991, 4.0L, V8, 32V, DOHC, MPFI, UZS131R, EngCode: 1UZ-FE

Toyota > Crown > Sep 1999 - Jun 2004, 4.0L, V8, 32V, DOHC, MPFI, UZS171R, EngCode: 1UZ-FE

Toyota > Landcruiser > Mar 1998 - Sep 2002, 4.7L, V8, 32V, DOHC, MPFI, UZJ100R, 151kW, EngCode: 2UZ-FE

Toyota > Landcruiser > Oct 2002 - Apr 2005, 4.7L, V8, 32V, DOHC, MPFI, UZJ100R, 170kW, EngCode: 2UZ-FE

Toyota > Landcruiser > May 2005 - Oct 2007, 4.7L, V8, 32V, DOHC, MPFI, UZJ100R, 170kW, EngCode: 2UZ-FE

Toyota > Landcruiser > Nov 2007 - Apr 2012, 4.7L, V8, 32V, DOHC VVT, MPFI, UZJ200R, 202kW, EngCode: 2UZ-FE

Toyota > Tundra > Feb 1999 - Dec 2006, 4.7L, V8, 32V, DOHC, EFI, UCK40L, EngCode: 2UZFE

Toyota > Tundra > Oct 2003 - Dec 2006, 4.7L, V8, 32V, DOHC, EFI, UCK41L, EngCode: 2UZFE