The part is compatible with the alternator codes listed below. Massey Ferguson.
For Lucas Type Dynamo Regulator RB340 12 Volt 12V 25 AMP NCB121 NCB131 130884
Lucas Type Voltage Regulator and Dynamo Control Box RB340 37342 12v 25A
Voltage Regulator FOR Dynamo Lucas Equivalent RB340 37344 NCB130 22A
Lucas Equivalent RB340 37344 NCB130 22A Voltage Regulator Dynamo
Lucas Equivalent RB340 37342 NCB131 25A Voltage Regulator Dynamo 130884
Vintage/Classic Car Regulator and cut-out type RB340 30 Amp 12V - as NCB133
