Dayco No Slack Accessory Drive Belt Idler Pulley

Dayco No Slack accessory drive belt idler pulleys are direct-fit replacement idler pulleys. They guide the serpentine belt and keep it correctly routed through the accessory drive. A worn idler pulley can cause belt noise, vibration and uneven belt wear. Replacing it restores smooth, quiet belt operation.

Key Features:

• Precision engineering: built to strict tolerances with smoother surfaces for consistent belt tracking
• Lubricated ball bearings: support smooth rotation and long service life
• High-temperature seals: help protect the bearing from heat and contamination
• Glass-filled polymer construction: offered on polymer-bodied pulleys for strength and cooler running. Some applications use steel pulleys.
• Reduced vibration: helps extend belt life
• Direct-fit design: makes installation straightforward as an OE-style replacement

Dayco has more than 110 years of experience in drive systems. It supplies belts, pulleys, tensioners and hoses to the automotive aftermarket. Whenever you replace a serpentine belt, inspect the idler pulleys too. Spin each pulley by hand and check for rough bearings or looseness. Choose the part number that matches your application.