Athearn 86951 HO CSX Chessie Patched SD50 Diesel Locomotive w DCC & Sound #8557 ProductID_11379530 Model Number: 94948 Model Number: 94948 Features: Suitable for 1:24th or 1:29th scale Coal Burning Model (ART 80100) or Wood Burning Model (ART 80200) Trailing tender has coal load or wood load Patented PrimeMover Smoke Unit with burn out protection (SD 45 type) under Smoke Stack Operating Direction Control Front Headlight All new motor block with can motor drive All Drive Axles Gear Driven 4 Patent Ball Bearing Equipped PrimeMover Gearboxes New Black metal drive wheels with electrical pick up Blackened Solid Brass Grab Railings Operating Knuckle Coupler (on Tender rear) both AAR and Delton couplers provided Boiler and cab interior detail Electrical pick up from tender Cab mounted Nathan K 5 5 chime air horn McHenry scale knuckle spring couplers