Genuine HT spare/option part. The engine quick mount replaces the standard clutch housing. It allows a much faster installation or removal of the engine since the clutch side of the engine is only be clamped by one single screw. The gear plate remains in the vehicle, the motor flange on the engine.The engine quick mount fits all FG 2WD on-road cars with horizontal engine (except Formula 1) Sportsline, Competition and Evo (EVO model range till 2003, except Evo 2020 series).We are sorry, but due to the design the quick mount cannot be used for FG 1/6 off-road and monster cars.For the first time it is now possible to install the Zenoah G320 in these cars! For cars allready equipped with a FG quick mount only the engine flange y1423/02 is required.The quick mount is available in two versions:y1421/01 for all Zenoah and Chung Yang engines up to 30 cm³ with standard bolt pattern 50 x 36 mmy1421/02 for Zenoah G320When mounting the motor flange the bolts/nuts must be tightened together in small steps. To mount the studs from y1421/01 or the screws from y1421/02 the use of thread locking compound (link) is required.Please note: y1421/01 does not fit in combination with Zenoah OEM clutch!