HO MACK BR SPECIAL LOCOMOTIVE 4 WHEEL SWITCHER WISEMAN MODEL SERVICES KIT August 15, 2026 By 0 WISEMAN MODEL SERVICES. 4 WHEEL SWITCHER LOCOMOTIVE KIT. MACK BR SPECIAL. HIGHLY IMPROVED OVER PREVIOUS ON-TRAK AND SS LTD KITS. NWSL CLAIMS TO BE WORKING ON A MOTORIZING KIT. THIS IS AN UNPOWERED MODEL.