Overview Product Description Atlas O 3637 Western Pacific F-3A diesel, 2 rail Features: Steam generator detail on either the A or B unit appropriate by railroad Highly detailed body with railroad-specific details All metal grab irons Die-cast metal chassis, fuel tank and trucks Twin flywheel-equipped motors Directional golden-white LED lighting Accurate painting and lettering Kadee style couplers fixed pilot Weight: 5 lbs/unit; Length: Approx. 12.5"/unit Minimum radius curve (2-Rail): 36" Full sound package and DCC installed Diesel Exhaust Questions? Emails us at pdt212@gmail.com or call 805-226-0320 Product Videos Custom Field Product Reviews