New OEM Tuff Torq replacement hydrostatic transmission for the left side when sitting on mower. See compatibility list below or contact us with model & serial number if you are unsure of compatibility. Replaces John Deere part numbers MIA12728, AUC15341 and AM140313. Also replaces obsolete Tuff Torq transmission models 787Q0824000 and 787Q0824001. This drop-in replacement comes pre-filled with oil.
EZtrak Z425 serial number 130001 and up
EZtrak Z445 serial number 130001 and up
EZtrak Z465 serial number 130001 and up