This is a Piko 36180 G Idler Gear 4 Wheel Gearbox (2)

This is a Kato 20-111 N Scale 11 Radius 15° Curved UniTrack (Pack of 4)

Features: Matches #933-3260

Keep your drive wheels clean with this handy tool

7 Inside Curve Sections

MTH 20-3478-1 Union Pacific 4-6-6-4 Challenger Steam Engine w/PS3.0 #3976 ProductID_11467553 This is a Piko 36180This is the Mth 20 3478 1 Union Pacific 4 6 6 4 Challenger Steam Engine with Proto Sound 3. 0 #3976. It Features: Diecast Boiler and Tender Body 1: 48 Scale Proportions Diecast Metal Chassis Authentic Paint Scheme Metal Wheels and Axles Constant Voltage Headlight Diecast Truck Sides Precision Flywheel Equipped Motor Locomotive Speed Control In Scale MPH Increments Wireless Drawbar Proto Scale 3 2 3 Rail 2 Rail Conversion Capable Remote Controlled