Features 1. Fitment: Works on BMW N20 and N26 engines. Used for securing the crankshaft with the transmission installed(connected to engine) 2. Function: While replacing the timing chain, this tool can hold the flywheel; It helps to release and tighten down the central bolts on the vibration damper. 3. Superior Material: Made from advanced heavy duty soild steel structure, durability and anti-corrosion, providing a long term service. 4. Replacement: Comparable to BMW Factory Tool No. 83302222742. (Note: Automatic transmissions only.) .