N scale DCC Sound Decoder /w speaker drop in For Kato F Unit

N scale DCC Sound Decoder Diesel drop in Kato SD40, SD45, Athearn SD70 and more

Digitrax DCC Motor Decoder Fits Kato SD40-2 onward N Scale Locomotives DN163K1C

N scale DCC Sound Decoder/Cubic Speaker drop in Kato SD80 and more

Digitrax SDXN147K1E Series 7 Drop in Sound Decoder for Kato SD40-2 & Similar

N scale DCC Sound Decoder/Cubic Speaker drop in Kato SD70, AC4400 and more

N scale DCC Sound Decoder /w Cubic Speaker

DCC Sound Decoder drop in for Kato N scale GE-P42, E8/E9