It also includes dummy couplers

Features include The billboard changes automatically from one image to the other

landing gear and separate doors

Model Number: 6-34131

The Trainz SKU for this item is P11391080

Broadway Limited 7055 HO UP Big Boy 1944 Steam Locomotive Sound/DC/DCC #4022 ProductID_12453901 It also includes dummy couplersThis is a Broadway Limited 7055 HO Scale Union Pacific Big Boy 1944 Steam Locomotive Sound DC DCC & Smoke #4022. Features: ALL NEW Paragon4 Sound & Control System, Synchronized Puffing Smoke with Chuff Sound, Variable Puffing Smoke Intensity and timing, Separate Whistle Smoke Feature smoke streams from whistle area when whistle is blown, Integral DCC Decoder with Back EMF for Industry Best Slow Speed Operation in DC and DCC, Precision Drive Mechanism