VISIT milwaukeePartnersHarley-Davidson Powertrain Operations Harley-Davidson Powertrain Operations H-D’s facility in Menomonee Falls, is home of the "Big Twin." Menomonee Falls Machinery W156 N9000 Pilgrim RoadMenomonee Falls, WI • 53051 Phone:(877) 436-8738 Toll-Free:(877) 883-1450 Hours of OperationMon: 9 a.m–2 p.m.Visit Website Overview The free factory tour offers a limited view of the assembly line and designated machining areas. Tours are Mon.-Fri. from 9 a.m.–1:30 p.m. and last approximately 30 minutes. The gift shop is open Mon.-Fri. 9 a.m.–3 p.m. Read More