Camshaft Engine Timing Tools Fit for BMW 318I 320I 316I E87 E46 E60 E9 N42 N46. Fits DOHC engines, For BMW N42 (B18A + B20AJ) and for BMW N46 (B18B + B20 + B20B). This engine timing tool kit includes an intake and exhaust camshaft locking device with fixing screws.