Athearn RTR 73633 HO Scale EMD SD40 Southern Pacific SP “Kodachrome” 7303 DC

Southern Pacific instituted a rebuild program for their SD40s in 1980-1981. The units were updated to Dash-2 electrical standards, as well as receiving electrical cabinet air filters just behind the cab on the fireman’s side. They were placed in the 73XX number series. A few units received the attractive red-and-yellow paint scheme of the proposed Southern Pacific Santa Fe merger, which combined SP scarlet with ATSF yellow. The merger was subsequently denied in 1986, but the repainted units lasted until the 1990s on the SP in some cases.

FEATURES:

• LED lighting
• Photo-etched stainless steel windshield wipers
• Separately applied wire grab irons and air tanks
• Curved radiator fan grab iron
• Coupler cut levers
• Rubber MU hoses
• See through cab windows, dynamic brake and radiator fans
• Fine scale handrails molded in engineering plastic
• Exhaust stack
• Frame mounted bell (unless noted)
• Detailed 4000 gallon fuel tank (unless different capacity is noted)
• Flexicoil-C trucks with high or low brake cylinders (per prototype)
• McHenry® scale knuckle couplers – Kadee® compatible
• All-wheel drive with precision gears for smooth & quiet operation
• All-wheel electrical pickup provides reliable current flow
• DCC-ready features Quick Plug™ plug-and-play technology with 21-pin NEM connector
• Improved 5-pole skew wound can motor with flywheels and multi-link drivetrain
• Wheels with RP25 contours operate on all popular brands of track
• Highly-detailed, injection molded body
• Interior plastic blister safely holds the model for convenient storage
• Minimum radius: 18” — Recommended radius: 22”
• Sound Ready
• DCC Ready/21-Pin NEM