Product Info: - Part: Drive Belt Tensioner Assembly - Classification: Professional - Material: Thermoplastic - Belt Type: Serpentine - Color: Aluminum with Black Pulley - Pulley Outside Diameter: 76 millimeters / 3.0 inches - Pulley Width: 32 millimeters / 1.260 inches - Mount Hole Quantity: 1 - Pulley Center Bore Diameter: 17.00 millimeters / 0.