Athearn MCH450 HO Knuckle Spring Coupler (25PR) Cup Racer Parts The crankshaft converts combustion into

The crankshaft converts combustion into rotation and is the backbone of the engine's bottom end

Multiple discharge ratings and configurations available

Direct replacement for compatible steering components

Dense brass construction lowers your rig's center of gravity for improved crawling stability while standing up to hard use

(1) Shell Tank Car

Athearn MCH450 HO Knuckle Spring Coupler (25PR) Cup Racer Parts The crankshaft converts combustion intoAthearn MCH450 HO Knuckle Spring Coupler (25PR) Product Features: * Scale size couplers are about 3 4 the size of standard couplers * Athearn HO SCALE KNUCKLE SPRING COUPLER (25PR)