A shaft sealing ring is sold to match for Tuff Torq Suitable for Tuff Torq Hydrostat transmission. If you are not sure whether this part fits your gearbox, just write an email. If you have problems identify your gear, I will be happy to help you. I check that and then tell you Notice. Dimensions 25.4 x 42 x 8 mm More Tuff Torq Spare parts on request.