The ROP Shop replacement Flat Idler Pulley for 2011 TimeCutter SS 5000 74630 Riding Mower Tractor Specs – Inside Diameter: 3/8″. Outside Diameter: 4 1/8″. Height: 1 1/2″. Refer to images 2 3 for more information Includes – (1) Flat Idler Pulley; comes as shown in the first image Please be sure to check your part or model number to ensure this is the correct flat idler pulley for your unit. Also, please note this may replace multiple part numbers This is a Quality ROP Shop Brand Product