Union Pacific Ballast Tamper #903845 A crucial piece of M.o.W. equipment, this self-propelled unit includes four tampers that move up and down to keep the road bed solid. Action Lighting SKU: 6-18490 Dimensions: Length: 5 1/2" Gauge: Traditional O Gauge price: 104.99 year: 2004 rail line: Union Pacific Minimum Radius: O-27 Catalog Year: 2005 Catalog Title: Classic Trains Vol. 1 2005 Road Number: 903845 FEATURES: Inner tampers operate automatically with ON/OFF switch Outer tampers retract manually Powerful maintenance-free motor Traction tire Die-cast metal frame Detailed cab interior Interior illumination Crew figure Manuals Find the latest manuals in our support section. Replacement Parts Buy any replacement parts in our support section. Contact Contact a service station to fix your product