EXACT OEM FIT replacement belt made to exact oem specifications. REPLACES JOHN DEERE/SABRE GX10063 1/2" x 144.63" Heavy duty made with kevlar reinforcement FITS LT166 WITH 48" DECKS EUROPRO RIDING MOWER: 1646H (PTO to Deck 46") John Deere RIDING MOWER: LT166 (PTO to Deck 48") Sabre RIDING MOWER: 1646HS (PTO to Deck 46") Sabre RIDING MOWER: 1646V-TWIN H (PTO to Deck 46") DISCLAIMER: We list model numbers & part numbers for your reference. NOTE that you may have the same model with a different deck or serial number or configuration. We list the EXACT size of the belt so if you are unsure measure yours. Please do not tell us we sent you the wrong belt when we send you the exact dimension belt we have listed. It is your responsibility to know what you need to order and all we can do is ship what you order. Thank you!