Dayco Automatic Belt Tensioner Jeep Grand Cherokee Mercedes C200 CDI C220 C270

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:

Jeep > Grand Cherokee > Mar 2003 - May 2005, 2.7L, 5 cyl, 20V, SOHC, DTFI, Turbo, Diesel, WG, 120kW, EngCode: ENF

Mercedes Benz > C200 CDI > Jan 2007 - Dec 2010, 2.1L, 4 cyl, 16V, DOHC, CRD Turbo, Diesel, W204, 100kW, EngCode: OM646.811

Mercedes Benz > C220 CDI > Mar 2001 - Aug 2004, 2.2L, 4 cyl, 16V, DOHC, CRD, Turbo, Diesel, W203, 105kW, EngCode: OM611.962

Mercedes Benz > C220 CDI > Sep 2004 - Jun 2007, 2.1L, 4 cyl, 16V, DOHC, CRD, Turbo, Diesel, W203, 105kW, EngCode: OM646.963

Mercedes Benz > C220 CDI > Jul 2007 - Feb 2010, 2.1L, 4 cyl, 16V, DOHC, DTFI, Turbo, Diesel, W204, 125kW, EngCode: OM646.811

Mercedes Benz > C220 CDI > Sep 2008 - Feb 2010, 2.2L, 4 cyl, 16V, DOHC, CRD, Turbo, Diesel, S204, 125kW, EngCode: OM646.811

Mercedes Benz > C270 CDI > Jun 2000 - Dec 2004, 2.5L, 5 cyl, 20V, DOHC, Diesel, W203, EngCode: OM612.962

Mercedes Benz > E270 CDI > Aug 2002 - Aug 2005, 2.7L, 5 cyl, 20V, SOHC, TCDI, Turbo, Diesel, W211, EngCode: OM647.961

Mercedes Benz > E320 CDI > 1999 - 2003, 3.2L, 6 cyl, 24V, DOHC, CRD, Diesel, W210/S210, 145kW, EngCode: OM613.961

Mercedes Benz > E320 CDI > 2003 - 2005, 3.2L, 6 cyl, 24V, DOHC, CRD, Diesel, W211, 130kW, EngCode: OM648.961

Mercedes Benz > S320 CDI > 2000 - 2002, 3.0L, V6, 24V, DOHC, CRD, Diesel, W220, 145kW, EngCode: OM613.960

Mercedes Benz > Sprinter > 2000 - 2001, 2.2L, 4 cyl, 16V, DOHC, TCDI, Turbo, Diesel, W901 208CDI, 60kW, EngCode: OM611.987, NZ

Mercedes Benz > Sprinter > May 2000 - Oct 2006, 2.2L, 4 cyl, 16V, DOHC, TCDI, Turbo, Diesel, 308CDI, EngCode: OM611.987

Mercedes Benz > Sprinter > May 2000 - Oct 2006, 2.2L, 4 cyl, 16V, DOHC, TCDI, Turbo, Diesel, 313CDI, 95kW, EngCode: OM611.981

Mercedes Benz > Sprinter > May 2000 - Oct 2006, 2.2L, 4 cyl, 16V, DOHC, TCDI, Turbo, Diesel, 413CDI, 95kW, EngCode: OM611.981

Mercedes Benz > Sprinter > Apr 2002 - Oct 2006, 2.2L, 4 cyl, 16V, DOHC, TCDI, Turbo, Diesel, W902 208CDI, EngCode: OM611.987

Mercedes Benz > Vito > Apr 2004 - Nov 2006, 2.1L, 4 cyl, 16V, DOHC, DTFI, Turbo, Diesel, 109CDI, 65kW, EngCode: OM646.983

Mercedes Benz > Vito > Apr 2004 - Nov 2006, 2.1L, 4 cyl, 16V, DOHC, DTFI, Turbo, Diesel, 111CDI, 85kW, EngCode: OM646.982

Mercedes Benz > Vito > Apr 2004 - Nov 2006, 2.1L, 4 cyl, 16V, DOHC, DTFI, Turbo, Diesel, 115CD1, 110kW, EngCode: OM646.982

Mercedes Benz > Vito > Apr 2004 - Nov 2006, 2.1L, 4 cyl, 16V, DOHC, DTFI, Turbo, Diesel, 115CD1, 110kW, EngCode: OM646.983

Mercedes Benz > Vito > Nov 2006 - Jan 2008, 2.1L, 4 cyl, 16V, DOHC, DTFI, Turbo, Diesel, 109CDI, 70kW, EngCode: OM646.980

Mercedes Benz > Vito > Nov 2006 - Jan 2008, 2.1L, 4 cyl, 16V, DOHC, DTFI, Turbo, Diesel, 109CDI, 70kW, EngCode: OM646.981

Mercedes Benz > Vito > Nov 2006 - Jan 2011, 2.1L, 4 cyl, 16V, DOHC, DTFI, Turbo, Diesel, 115CD1, 110kW, EngCode: OM646.980

Mercedes Benz > Vito > Jan 2008 - Jan 2011, 2.1L, 4 cyl, 16V, DOHC, CRD Turbo, W639, 111CDI, 70kW/85kW, EngCode: OM646.980