with very free rolling RP-25 metal wheels

SP/Black Widow #6402/#8303

This is an Stewart 4721 HO Scale Union Pacific Diesel Baldwin VO-1000 Powered No Unit Number

This drive hub assembly fits into the spur gear assembly

Lionel 6-38021 Western Pacific Lionmaster 4-6-6-4 Challenger Steam Loco #402 ProductID_11394346 with very free rolling RP-25This is a Lionel 38021 Western Pacific 4 6 6 4 Challenger Steam Locomotive and Tender from 2002. The Lionel LionMaster series brings the giants of the rails to layouts with tight O 31 curves. LionMaster locomotives are fully featured with a level of detailing, including many separately applied parts, unsurpassed by any other line of semi scale sized locomotives. Great care is taken when designing the proportions of each LionMaster locomotive to ensure