View 0 Photos View 0 Videos 1978 Allison MT643 Transmission for a Ottawa YT Newly Listed $1,375 USD (USED) Allison MT643 Assembly#: N/A Input Lgth: AUTOMATCI Input Dia: AUTOMATIC Pilot Dia: AUTOMATIC Ref# N/A ConditionUsedAssembly NumberN/AFits To Make(s)OttawaFits To Model(s)YTPart NumberN/AStock Number26012405 MLS Number14419083CategoryTransmissions Last Updated6/11/2026 LocationSioux Falls, SD, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info