Cloyes B10164 Accessory Drive Belt Pulley — Flat, Smooth, Steel

The Cloyes B10164 is a steel accessory drive belt pulley engineered for smooth, reliable serpentine belt operation. Designed to OE-level precision, this flat-style idler pulley features a smooth backside contact surface and delivers proper belt alignment while minimizing vibration throughout the drive belt system. With an outside diameter of 3.54 inches, a width of 1.36 inches, and a single center mounting hole, it is built to meet or exceed original equipment specifications for a precise, trouble-free fit.

Key Features:

• Steel construction with advanced corrosion resistance for long-term durability
• Flat pulley design with smooth backside contact surface
• Outside diameter: 3.54 in (89.9 mm); width: 1.36 in (34.5 mm)
• Single mounting hole; no keyway notch
• OEM-grade quality meets or exceeds original equipment specifications
• Helps maintain optimal belt alignment and reduce system vibration
• Mounting hardware not included

Cloyes backs this pulley with industry-leading warranty coverage and dedicated technical support. As a pro tip, belt drive components wear at similar rates — inspect pulleys at 60,000 miles and consider replacing belts, tensioners, and related components together at 90,000 miles for optimal performance. Fits select 2009–2015 Cadillac and Chevrolet models. California Prop 65 Warning: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information: www.P65Warnings.ca.gov.