This Ariens 20000975 6. 4mm ID x 17mm OD x 1. 6T washer is a must-have for any outdoor equipment maintenance. Made with high-quality materials, this washer is designed to provide a tight and secure fit for your Ariens equipment. Part number 20000975, this washer is perfect for replacing worn or damaged parts. Its compact size makes it easy to store and transport, making it an essential addition to your tool kit. Keep your outdoor equipment running smoothly with Ariens and their trusted parts such as this 20000975 washer. Don't let a faulty washer slow you down, invest in quality parts from Ariens today.