Here is a Williams 21813 D&RGW SD90 Powered Diesel Locomotive

and 1974 SP returned to International Car Company for 181 cabooses

making them visually distinct from stock SD-24s

The Trainz SKU for this item is P11625332

Broadway Limited 2205 HO UP Class MT-73 4-8-2 & Oil Tender w/DCC & Sound #7861 ProductID_11622570 Here is a Williams 21813This is a Broadway Limited 2205 HO Scale Union Pacific Class MT 73 4 8 2 with Oil Tender DC& DCC Paragon2 #7861 (2 Tone Gray, Aluminum). Industry Leading Features: All New Paragon2 Sound & Control System,Synchronized Puffing Smoke with Chuff Sound,Variable Puffing Smoke Intensity and timing,Integral DCC Decoder with Back EMF for Industry Best Slow Speed Operation in DC and DCC,Precision Drive Mechanism engineered for continuous heavy load towing and