O-Ring Fits Ford Massey Tractor Fits:Ford- 9N, 2N, 8N, NAA, Jubilee Optional on following when used with 2 1/2"" Dia. piston- Massey- TE20, TEA20, TO20, TO30, F40, 50 Optional on following when used with 2 1/2"" Dia. piston; TO35: To Sn: 179304, Optional on following when used with 2 1/2"" Dia. piston - Specifications For Ford applications, this O-ring installs toward head of the lift cylinder piston For 2-1/2"" lift cylinder piston 2.100"" inside diameter 2.500"" outside diameter 0.210"" thick Replacement Numbers: Ford- 235760, NAA533A- Massey- 835126M1- All JJAgParts items have been hand selected by our team and are continuously monitored for Quality. Should a craftsmanship or fitment concern be identified, JJAgParts will work with you to stand behind our products. JJAgParts is an American owned and operated family business! Here at JJAgParts, we strive for customer satisfaction. If you are not satisfied with your order, please contact us so we can make it right. Note: OEM Part Numbers are for reference only and should be verified before purchase.