Dayco Automatic Belt Tensioner Nissan Dualis Qashqai Serena Tiida X-Trail

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 > Dualis > Dec 2007 - Jan 2016, 2.0L, 4 cyl, 16V, DOHC, MPFI, J10, 102kW, EngCode: MR20DE

Nissan > Qashqai > Jul 2009 - , 2.0L, 4 cyl, 16V, DOHC, MPFI, J10, 102kW, EngCode: MR20DE

Nissan > Qashqai > Jul 2014 - , 2.0L, 4 cyl, 16V, DOHC, MPFI, J11, 102kW, EngCode: MR20DD

Nissan > Serena > May 2005 - Nov 2010, 2.0L, 4 cyl, 16V, DOHC VVT, MPFI, C25, 102kW, EngCode: MR20DE

Nissan > Tiida > Feb 2006 - Apr 2013, 1.8L, 4 cyl, 16V, DOHC VVT, MPFI, C11, 93kW, EngCode: MR18DE

Nissan > X-Trail > Jan 2011 - Feb 2014, 2.0L, 4 cyl, 16V, DOHC VVT, MPFI, T31, 102kW, EngCode: MR20DE

Nissan > X-Trail > Dec 2013 - , 2.0L, 4 cyl, 16V, DOHC VVT, Direct Inj., T32, 106kW, EngCode: MR20DD, NZ

Nissan > X-Trail > Mar 2014 - , 2.0L, 4 cyl, 16V, DOHC VVT, Direct Inj, T31, 106kW, EngCode: MR20DE

Renault > Fluence > Nov 2010 - , 2.0L, 4 cyl, 16V, DOHC, MPFI, X38, 103kW, EngCode: M4R.714/751

Renault > Megane > Sep 2010 - May 2013, 2.0L, 4 cyl, 16V, DOHC, MPFI, X32, 103kW, EngCode: M4RK

Renault > Megane > Sep 2010 - May 2013, 2.0L, 4 cyl, 16V, DOHC, MPFI, X32, 103kW, EngCode: M4R.711/3

Renault > Megane > Nov 2010 - , 2.0L, 4 cyl, 16V, DOHC, MPFI, E95, 103kW, EngCode: M4R.711/3

Renault > Megane > Jul 2013 - Jun 2014, 2.0L, 4 cyl, 16V, DOHC, MPFI, K95, 103kW, EngCode: M4R.711/3

Renault > Megane > Jul 2013 - Jun 2014, 2.0L, 4 cyl, 16V, DOHC, MPFI, B95, 103kW, EngCode: M4R.711/3

Renault > Megane > Jul 2014 - , 2.0L, 4 cyl, 16V, DOHC VVT, MPFI, E95, 103kW, EngCode: M4R.711/3