View 8 Photos View 0 Videos 1993 Allison MT643 Transmission $1,000 USD Good used and cleaned Allison MT643 transmission assembly. 90 Day warranty for swap or refund. ConditionUsedFits To Make(s)ALLISONFits To Model(s)MT643Stock Number1068174 MLS Number14020218CategoryTransmissions Last Updated12/6/2025 LocationFitchburg, MA, US Sold ByRydemore Heavy Duty Truck Parts (888) 519-___ SHOWNUMBERCall Seller Email Seller Save More Info