The 829107 Oil Pump Alignment Toolhas been developed to allowthe user to correctly align theengine oil pump in the sump after anengine rebuild etc. it is importantthat the pump be correctly andaccurately aligned to ensure the oilpump sprocket is not operatingwith excessive side loads. Please carry out an up-to-date cross reference test for thespecific vehicle on our Website For the professional engine repair For locking the crankshaft or camshaft and injectionpump Very high degree of accuracy In foam inlay in a durable BMCS (Blow mould case storage)