OEM irashobora kugabanya ibiciro byumusaruro no kwirinda ishoramari ridakenewe. Inyungu igaragara yikiguzi cya OEM nubushobozi bwo gutanga ibicuruzwa bihari, umurimo wubukungu, imiterere yubumenyi bugamije kuzamura umusaruro, nibindi bisobanuro bitunganijwe byumwuga. Mugabanye ibiciro byumusaruro murubu buryo, ibigo ntibishobora kugumana inyungu zipiganwa gusa mumarushanwa akaze, ariko kandi byongera inyungu zubukungu bwibigo.