0 0 Allison MT 643 RM Transmission Contact for price ., Serial#: N/A, Casting#: N/A ConditionUsedStock Number337 MLS Number9389834CategoryTransmissions Last Updated12/15/2022 LocationFarr West, UT, US Sold ByRocky Mountain Truck Parts (855) 980-___ SHOWNUMBERCall Seller Email Seller Save More Info