Replaces Exmark part number 109-9127 (Also replaces part numbers 109-9124 and 109-9125). 13.6.50-6 SMOOTH HOLLOWMATIC TIRE (similar to Reliance). Flat proof semi-pneumatic wheel and tire assembly. With bearing cups (Includes Exmark #1-633584, Bearing-Cup).   6.75" hub length.  Please note there is a very similar wheel assembly that has a 7-1/4" hub length. We do carry the bearing kit for this wheel assembly but the center bushing differs depending on the application.  If your wheel assembly uses the non-treaded center bushing, that is the set we have.  If yours uses the treaded center bushing, all of the other components of our bushing kit are the same expect that center bushing and your center bushing can be reused if it is still in working order.   Link to the bearing kit - https://igoprolawnsupply.com/products/wheel-bearing-kit-exmark   Replaces OEM Part Numbers: EXMARK 109-9127 EXMARK/TORO 109-9124 EXMARK 109-9125 Dimensions: TREAD: SMOOTH TYPE: FLAT PROOF SEMI-PNEUMATIC TIRE SIZE: 13x6.50-6 (13X650X6) HUB LENGTH: 6.75" CENTERED Have a question about this product? Email us for assistance and tell us you are looking at SKU 14814.Email admin@igoprolawnsupply.com.We are happy to verify fitment on your piece of equipment if you can provide us with your equipment's model and serial number. We can also answer any questions you may have.CLICK HERE to submit all info we need to assist you. Thank you for helping us help you.