Dayco Automatic Belt Tensioner for Alfa Romeo 147 156 GT GTV Spider

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:

Alfa Romeo > 147 > Sep 2001 - Jan 2011, 2.0L, 4 cyl, 16V, DOHC, MPFI, 110kW, EngCode: AR32310

Alfa Romeo > 156 > Feb 1999 - Jul 2002, 2.0L, 4 cyl, 16V, DOHC, MPFI, 114kW, EngCode: AR32301

Alfa Romeo > 156 > Aug 2002 - Jun 2006, 2.0L, 4 cyl, 16V, DOHC, MPFI, JTS, 122kW, EngCode: AR932A200

Alfa Romeo > 156 > Aug 2002 - Jun 2006, 2.0L, 4 cyl, 16V, DOHC, MPFI, JTS, 122kW, EngCode: AR937A100

Alfa Romeo > GT > Jan 2005 - Jul 2010, 2.0L, 4 cyl, 16V, DOHC, MPFI, JTS, EngCode: AR937A1

Alfa Romeo > GTV > Jun 1998 - Sep 2003, 2.0L, 4 cyl, 16V, DOHC, MPFI, 114kW, EngCode: AR32301

Alfa Romeo > GTV > Oct 2003 - Dec 2004, 2.0L, 4 cyl, 16V, DOHC, MPFI, JTS, 121kW, EngCode: 937A1

Alfa Romeo > Spider > Jun 1998 - Sep 2003, 2.0L, 4 cyl, 16V, DOHC, MPFI, EngCode: AR32301

Alfa Romeo > Spider > Oct 2003 - Jan 2005, 2.0L, 4 cyl, 16V, DOHC, MPFI, JTS, EngCode: AR937A1