Athearn ATHG63839 HO Genesis Motor Retrofit Kit for RTR SD45 / SD40 Locomotives Radio Accessories Factory-assembled and pre-filled with 10K

Factory-assembled and pre-filled with 10K silicone oil

Replaces the stock plastic rear chassis brace in the Arrma #AR320196

Short Course Style 2

and the aluminum build stands up to hard use

One aluminum center differential locker spool

Athearn ATHG63839 HO Genesis Motor Retrofit Kit for RTR SD45 / SD40 Locomotives Radio Accessories Factory-assembled and pre-filled with 10KAthearn ATHG63839 HO Genesis Motor Retrofit Kit for RTR SD45 SD40 Locomotives Overview Three benefits to Genesis power to your RTR Locomotives: Streamlined DCC speed curves Lower motor current draw Quieter motor operation for DCC Sound Features Simple Installation Molded on motor saddle mounts Included extended Dog Bone universal Balanced Flywheels DCC Ready! NMRA 8 pin and Decoder Harness plugs Pre soldered motor wire leads