Dayco Automatic Belt Tensioner Freightliner Argosy Century Columbia

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:

Freightliner > Argosy > 2000 - 2010, 15.0L, 6 cyl, 12V, OHV, DTFI, Turbo, TSB, EngCode: CUM ISX

Freightliner > Argosy > 2000 - , 15.0L, 6 cyl, 12V, OHV, DTFI, Turbo, SSB, EngCode: CUM ISX

Freightliner > Century > 2000 - 2009, 15.0L, 6 cyl, 12V, OHV, DTFI, CST120, EngCode: CUM ISX

Freightliner > Columbia > 2004 - 2007, 15.0L, 6 cyl, 12V, OHV, DTFI, Turbo, Diesel, CL120, EngCode: CUM ISX

International > 9200i Eagle > 2000 - 2011, 15.0L, 6 cyl, 12V, OHV, Turbo, EngCode: CUM ISX

International > 9800i Eagle > 2001 - , 15.0L, 6 cyl, 12V, OHV, DTFI, Turbo, Diesel, EngCode: CUM ISX

International > 9900i Eagle > 2004 - 2011, 15.0L, 6 cyl, 12V, OHV, DTFI, Turbo, EngCode: CUM ISX

Kenworth > K104 > 1999 - 2007, 15.0L, 6 cyl, 12V, OHV, Turbo, Diesel, EngCode: CUM ISX SIG ADR80/00

Kenworth > K104 > 1999 - 2007, 15.0L, 6 cyl, 12V, OHV, Turbo, Diesel, EngCode: CUM ISX

Kenworth > K104B > 2006 - 2008, 15.0L, 6 cyl, 12V, OHV, Turbo, Diesel, EngCode: CUM ISX

Kenworth > T404 > 1999 - 2007, 15.0L, 6 cyl, 12V, OHV, Turbo, Diesel, EngCode: CUM ISX

Kenworth > T404S > 1999 - 2007, 15.0L, 6 cyl, 12V, OHV, Turbo, Diesel, EngCode: CUM ISX

Kenworth > T604 > 1999 - 2007, 15.0L, 6 cyl, 12V, OHV, Turbo, Diesel, EngCode: CUM ISX

Kenworth > T650 > 1999 - 2007, 15.0L, 6 cyl, 12V, OHV, Turbo, Diesel, EngCode: CUM ISX

Kenworth > T904 > 1999 - 2007, 15.0L, 6 cyl, 12V, OHV, Turbo, Diesel, EngCode: CUM ISX SIG ADR80/00

Western Star > 4864FX > 2002 - 2017, 15.0L, 6 cyl, 12V, OHV, Diesel Inj., Turbo, Diesel, EngCode: CUM ISX, 6x2 - 4x2

Western Star > 4964FX > 1999 - , 15.0L, 6 cyl, 12V, OHV, DTFI, Turbo, Diesel, Canada, EngCode: CUM ISX