12V Generator Alternator for Early & Late FORD 2N 8N 9N & NAA / Massey Ferguson Tractor TO20 TO30 For Massey Ferguson TO20 and TO30 as well as, For Late Ford NAA Tractors For Early Ford 8N (1939-51), 2N, and 9N Tractors (Front Mount Distributor): For IHC Model M, Super M Tractors For Late Ford 8N w/Side Mount Distributor (#263844-Up