OPTIMAL G1-666 Direksiyon Sistemi Mafsal, TOYOTA HIACE II Minibüs/Otobüs (_H11, _H2_, _H3_, _H4_), TOYOTA HIACE III Minibüs/Otobüs (_H5_, _H6_, _H7_, _H8_, _H9_), TOYOTA HILUX V Pick-up (_N8_, _N9_, _N10_, _N11_), TOYOTA 4 RUNNER II (_N13_), TOYOTA HIACE III Panelvan/Van (_H5_, _H6_, _H7_, _H8_, _H9_), TOYOTA HILUX IV Pick-up (_N5_, _N6_), TOYOTA HILUX VI Pick-up (_N1_), TOYOTA 4 RUNNER I (_N5_, _N6_, _N7_), TOYOTA 4 RUNNER III (_N18_) modelleri ile uyumludur.