21 0 Allison 4500RDS Transmission for a 2021 International HX620 Contact for price Allison 4500RDSP Transmission For Sale S/N 6610613559 - Used -low mileage ,in great condition, (see photos). Torque convertor and PTO are optional. Call or email. For more information, we... ConditionUsedEngine ModelCummins X15Fits To Make(s)InternationalFits To Model(s)HX620Will Fit Year(s)2021Part Number4500RDSPStock NumberIN-0839-1 MLS Number12865836CategoryTransmissions Last Updated10/23/2025 LocationYork, ON, Canada Sold ByLomoca Inc. (833) 835-___ SHOWNUMBERCall Seller Email Seller Save More Info