Dayco Automatic Belt Tensioner for Alfa Romeo 147 156 166 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 > Jul 2003 - Feb 2007, 3.2L, V6, 24V, DOHC, MPFI, 184kW, EngCode: 932A0

Alfa Romeo > 156 > Feb 1999 - Sep 2002, 2.5L, V6, 24V, DOHC, MPFI, 140kW, EngCode: AR32401

Alfa Romeo > 156 > Aug 2002 - Jun 2004, 3.2L, V6, 24V, DOHC, MPFI, GTA, 184kW, EngCode: AR932A0

Alfa Romeo > 156 > Aug 2002 - May 2006, 2.5L, V6, 24V, DOHC, MPFI, 141kW, EngCode: AR32405

Alfa Romeo > 166 > Aug 1999 - Jul 2004, 3.0L, V6, 24V, DOHC, EFI, 166kW, EngCode: AR34301, FWD

Alfa Romeo > 166 > Aug 2004 - Jan 2009, 3.0L, V6, 24V, DOHC, EFI, EngCode: AR36301, FWD

Alfa Romeo > GT > Jul 2004 - Jun 2012, 3.2L, V6, 24V, DOHC, MPFI, 176kW, EngCode: AR936A6

Alfa Romeo > GTV > Jun 1998 - Sep 2003, 3.0L, V6, 24V, DOHC, MPFI, 162kW, EngCode: AR16102

Alfa Romeo > GTV > Oct 2003 - Dec 2004, 3.2L, V6, 24V, DOHC, MPFI, 176kW, EngCode: AR936A6

Alfa Romeo > Spider > Jun 2001 - Sep 2003, 3.0L, V6, 24V, DOHC, MPFI, EngCode: AR16105

Alfa Romeo > Spider > Oct 2003 - Jan 2005, 3.2L, V6, 24V, DOHC, MPFI, EngCode: AR936A6