HO SD45T-2 Locomotive with DCC & Sound, SP/Speed Letter #9335 Overview
As these units were ran hard in service since their initial debut, many were repainted into SP's then-new Speed Lettering scheme of the 1990's. By this time, the units had lost their SP lighting features in favor of the addition of front ditch lights. other changes included moving the horn to the long hood and modifying the âLâ cab windows.
The SD45T-2 is a six-axle diesel electric locomotive built by General Motors Electro-Motive Division having a 20-cylinder 645-series diesel engine producing 3600 horsepower. Over 200 examples were produced between 1972 and 1975. This locomotive including the SD40T-2 were nick-named âTunnel Motorsâ due to the rear cool air intake lowered to just above the walkway at the rear of the locomotive. This helped provide cooler air into the locomotive's radiator cooling system and ultimately reducing the chance of the engine overheating in tunnels.