This is the Crankshaft for the O.S. Max .18CV-R Engine, OSMG2101. / / FEATURES: Machined steel construction / / INCLUDES: One crankshaft for the .18CV-R Engine / / REQUIRES: Installing in the engine / / SPECS: Length: 57.4mm end to end / 12mm threaded portion / Diameter: 5mm threaded portion / / / tjt 050504 / ir/jxs