Walthers Cornerstone 933-4049 HO Scale Express Motor Freight Lines Kit SCT410 Parts they're a wear item worth

they're a wear item worth checking whenever your drivetrain starts to feel less responsive than it used to

This is the Starting Shaft for the HPI 21BB Engine

Two Gearbox Housings

11mm outside diameter

Walthers Cornerstone 933-4049 HO Scale Express Motor Freight Lines Kit SCT410 Parts they're a wear item worthWalthers Cornerstone 933 4049 HO Scale Express Motor Freight Lines Kit * Molded in Five Colors and Clear Plastic * Complete Trucking Facility in One Kit * Fits Late Steam and Early Diesel Era Layouts * Great Go With Industrial Building for Vintage Piggyback Service * Detailed "Brick" Main Office * "Concrete Block" Garage Build with Overhead Doors Open or Closed * Vintage Gas Pumps and Oil Drums * Colorful Printed Signs for Tanks & Gas Pumps Measures: