For sale: New original John Deere tractor computer (John Deere ECU) - Part Number SJ13216 Advertisement Details (Information): Part Name: Electronic Vehicle Control Unit / Transmission Controller. Manufacturer: Original John Deere Agency. Part Number: SJ13216. Approved Agency Alternate Number: PH85251031. Part Condition: Brand New (New OEM) - Never used or installed, excellently stored. Country of Manufacture: Made in USA. Compatible Models: This part is compatible with a wide range of tractors and equipment