Dayco Automatic Belt Tensioner & Pulley Kit – Controlled Serpentine Drive Performance

Dayco automatic belt tensioner and pulley kit is supplied as a coordinated serpentine drive servicing solution, combining an automatic spring loaded belt tensioner with matched idler or tensioner pulleys. Designed for serpentine belt systems where a single belt powers multiple accessories, the tensioner helps maintain consistent belt load across the drive system.

The automatic tensioner responds to belt stretch and accessory load changes, supporting stable belt tracking while helping reduce issues such as belt squeal, slippage, or inconsistent accessory operation. This makes it a practical service solution when maintaining or renewing serpentine belt drive assemblies.

Complementing the tensioner assembly, Dayco Nuline pulleys are engineered for high speed accessory drive applications and are manufactured to meet OEM performance requirements used across modern serpentine belt systems.

Why Choose Dayco Automatic Belt Tensioner & Pulley Kit?

• Patented flat spring tensioner with Teflon strip and coated spring designed to control belt tension and resist abrasion.
• Heavy duty cast aluminium spring case and arm with steel locator pin and pivot tube where required for added strength.
• Sealed tensioner assembly featuring spring slot plug, rubber O ring sealing and corrosion resistant zinc coated mounting bolt.
• Dayco Nuline pulleys available in glass filled polymer or steel with protective dust covers.
• C3 specification OEM sourced high speed bearings with high temperature lubricant and heavy duty silicone seals.    

Shop with MACE Engineering Group for genuine Dayco automatic belt tensioner and pulley kits and dependable serpentine drive solutions.

This belt tensioner & pulley kit suits Holden vehicles fitted with the Ecotec L36 V6 engine.

Contents:

• 1 X Automatic tensioner
  
• 1 X Tensioner pulley
• 1 X Idler pulley
  

Vehicle Fitment Guide

 

Note: The image is for illustrative purposes only.