N EMD F3B Locomotive Black Widow Paragon4 SP #537 (BLI7739)

The EMD F3B Locomotive in Black Widow with Paragon4 Sound, road number SP 537, is a detailed scale model built to faithfully reproduce EMD's classic cab unit for realistic freight and passenger service on model railways.

Designed for authentic operation, this Broadway Limited model features Paragon4 sound with Rolling Thunder and a dual-mode decoder with Back EMF for smooth slow-speed performance in both DC and DCC. It uses all-wheel electrical pickup and a die-cast chassis for maximum tractive effort, with prototypical lighting and extensively detailed features such as grab irons and horns. It accepts MicroTrains-compatible couplers and runs on Code 55, 70, and 80 rails with a 9-inch minimum radius. Available as a powered A-unit with Paragon4 DC/DCC/Sound or as unpowered B-units to form true A-B consists on layouts that reproduce prototypical paint schemes.