and Summit require specially designed servo horns to maximize the performance of the linkages

Unit Measures: 11 1/2 x 2 5/16 x 4 & Operates On O-27 Curves

This is a MTH 30-20381-1 SOO Line SD60 Diesel Engine #6052

Model Number: 6584036

Trainz Product Id: 12262281

MTH 30-20150-1 Western Pacific SW-1 Diesel Switcher w/PS 3.0 #502 ProductID_11981934 and Summit require specially designedThis is MTH 30 20150 1 SW 1 SWitcher w PS3 WP. SW 1 switcher diesel engine with Proto Sound 3. 0, Western Pacific. Cab number: 502. The birth of the SW1 in January 1939 was a historic moment for the Electro Motive Corporation. The tiny switcher (S for six hundred horsepower, W for welded frame) was EMC's first truly mass produced loco, the first with Electro Motive's own electrical gear, and the first mass produced engine powered by the 567 diesel