The Mustang 1650RT use interchangeable undercarriage steel parts with several other Mustang models but the track size is unique to the 1650RT. We supply Mustang aftermarket parts from both the Takeuchi generation and the newer Manitou generation. Browse our products for a great selection on the full undercarriage for each machine. We supply full undercarriages for the Mustang 1650RT including narrow or wide option rubber tracks. We have the sprockets but you must check your serial number for optional sprocket part numbers. The idlers and bottom rollers are universal across these models. See the details within the product descriptions below.