Thanks gatrhumpy,   Bachman mentioned E-Z mate coupler, which one would you recommend ?

thanks James, I appreciate the reply. I wonder if there is a standard coupling system for Ngage ? I like the Knuckle type and hope I can change the coupler on the j. I saw one running on you tube with cars behind so I  "m sure I canuse something. thanks

I received a Spectrum N scale N&W class J 611 for Christmas. Can anyone tell me what type of coupler system it has so when I buy some rolling stock for it I get the correct coupler. I new to this so I need lots of help. Thanks