Check the listing for details. Steel Clutch GRADER (GEARCO) CHAMPION 16780N Replaced by Alto # 307709-340. Condition: New. Listed at 34.91 USD. Steel Clutch GRADER (GEARCO) CHAMPION 16780N Replaced by Alto # 307709-340 Original Alto Clutch Plates! MADE IN USA! High Quality! Steel Clutch. High Quality! Made in the USA! Replaces GRADER (GEARCO) CHAMPION 16780N. Replaced by Alto # 307709-340. 8 Teeth. Outside Diameter - Inside Diameter - Thickness in Inches: 12.717 x 7.249 x 0.135Outside Diameter - Inside Diameter - Thickness in Inches: 12.717 x 7.249 x 0.135Outside Diameter - Inside Diameter - Thickness in Millimeters: 323.01 x 184.12 x 3.43Replaces and Interchanges with the following part numbers:16780N About Alto Alto Products Corp. is the oldest and largest independently owned and operated manufacturer of heavy duty friction material in the world. Alto is an ISO certified OE manufacturer of clutches and brakes for almost 70 years. Alto manufactures and distributes a complete range of heavy duty friction material and steel plates for on and off highway applications. All components are manufactured in-house in the USA. Quality is the cornerstone of customer confidence. Alto Products are engineered to meet or exceed customer satisfaction. The process begins with testing of all incoming materials, followed by controlled checks through all phases of processing, finished by a final check of each and every part. Our Statistical Process Control program ensures the integrity of every part. Quality, value, and service is our goal at Alto. Installing an Alto Product in your vehicle is not just the best decision. It's the only decision. If you are not satisfied with your order, please contact us ASAP to set up a return or exchange. Please give us the opportunity to make it right. We offer a 1 year limited warranty against defects on most of our products. Please message us if you have specific questions regarding warranty info. Every part has been 100% Quality Checked to ensure that you can install our part with confidence. We offer parts at the most competitive prices with quick delivery.