Digitrax DH165Q1 HO Scale Diesel Locomotive QSI Style [Board Replacement DCC Decoder] Decoder - 6-Pin If the model has a

If the model has a shallow molded-on gearbox

Wireless Handheld Throttle

It features pre-programmed marker lights that change color depending on direction

Use the provided insulated gearbox or insulated #28 coupler

Simple hook up

Digitrax DH165Q1 HO Scale Diesel Locomotive QSI Style [Board Replacement DCC Decoder] Decoder - 6-Pin If the model has aDigitrax DH165Q1 HO Scale Diesel Locomotive QSI Style Board Replacement DCC Decoder DH165Q1 fits Atlas, Intermountain, LifeLike & Other factory sound equipped HO Locomotives. Compatible with Digitrax Sound Bug. FEATURES: QSI style PCB replacement Plug NPlay decoder Allows replacement with new technology downloadable SFX SoundBug modules Accepts Plug in SFX SoundBug sound modules Excellent power management Booster or Programmer overloads Regulated