Voltage Regulator / Onan 191-2227Pack Size:1Onan 191-2106, Onan 191-1748, Onan 191-2227, Onan 191-2208Foley/Belsaw 5980246, NHC 263-8250, Oregon 33-411, Prime Line 7-01699, Rotary 12802Onan P series; 16-20 HP enginesAMP Style: 20, 3 male terminals: AC, B+ and AC