Dayco No Slack Idler Pulley

The Dayco No Slack Idler Pulley line includes replacement idler and tensioner pulleys for engine belt drive systems. The pulleys guide the belt and help it keep steady contact and proper tension. They are used in serpentine and V-belt drives. Dayco builds them as direct replacements for original equipment pulleys.

Key Features:

• Designed to replace serpentine and V-belt idler and tensioner pulleys
• Made in steel and in glass-filled polymer, which is a strong, wear-resistant plastic
• Engineered with 3D computer-aided design (CAD) and finite element analysis (FEA) for structural integrity
• Smooth surfaces and tight dimensional tolerances help the belt run quietly and wear less
• Sealed bearings help keep out dirt and moisture and extend service life
• Light-duty and heavy-duty versions are available across the line

A worn or noisy idler pulley can cause belt slippage, uneven belt wear and damage to accessories. Replacing it restores smooth belt operation. Dayco is a well-known supplier of belt drive components, including belts, tensioners, pulleys and timing kits. Choose the specific part number for your application from the options on this page.