Dayco Automatic Belt Tensioner Nissan Bassara Elgrand Liberty Murano Presage

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:

Nissan > Bassara > Aug 2001 - Jun 2003, 2.5L, 4 cyl, 16V, DOHC VVT, MPFI, U30, 123kW, EngCode: QR25DE, Japan Import NZ

Nissan > Elgrand > Aug 2010 - , 2.5L, 4 cyl, 16V, DOHC VVT, MPFI, E52, EngCode: QR25DE, Import

Nissan > Liberty > May 2001 - Nov 2004, 2.0L, 4 cyl, 16V, DOHC VVT, MPFI, M12, 109kW, EngCode: QR20DE

Nissan > Murano > Sep 2008 - , 2.5L, 4 cyl, 16V, DOHC VVT, MPFI, Z51, 125kW, EngCode: QR25DE, Import

Nissan > Presage > Jun 2003 - Sep 2009, 2.5L, 4 cyl, 16V, DOHC VVT, MPFI, U31, 122kW, EngCode: QR25DE

Nissan > X-Trail > 2000 - 2007, 2.0L, 4 cyl, 16V, DOHC, MPFI, T30, EngCode: QR20DE, Japan Import NZ

Nissan > X-Trail > Oct 2001 - Jan 2006, 2.5L, 4 cyl, 16V, DOHC, MPFI, T30, 132kW, EngCode: QR25DE

Nissan > X-Trail > Sep 2006 - Feb 2007, 2.5L, 4 cyl, 16V, DOHC, MPFI, T30, 123kW, EngCode: QR25DE

Nissan > X-Trail > Aug 2007 - Mar 2015, 2.5L, 4 cyl, 16V, DOHC VVT, MPFI, T31, 127kW, EngCode: QR25DE, NZ

Nissan > X-Trail > Oct 2007 - Feb 2014, 2.5L, 4 cyl, 16V, DOHC VVT, MPFI, T31, 125kW, EngCode: QR25DE

Renault > Koleos > Sep 2008 - , 2.5L, 4 cyl, 16V, DOHC, MPFI, H45, 126kW, EngCode: 2TR