OE Number: The referencing OE number of this locking kit is 09231 2B100, which is molded and designed depend on the original car data. OE Number: 09231 2B100. Item Type: Flywheel Locking Tool. Features: This tool ensures the crankshaft is locked to allow the crankshaft pulley, clutch bolts and flywheel bolts to be removed and torqued without moving the crankshaft.