The Shibaura 498221040 is a genuine OEM spring designed for various Shibaura, Iseki, and Landini tractor models. This essential component ensures proper function within the machinery, providing reliable performance. It is compatible with Shibaura ST series tractors including ST318, ST321, ST324, ST327, ST330, ST333, ST445, ST450, ST460, ST470. It also fits Iseki TG series tractors such as TG23, TG25, TG27, TG29, TG31, TG33, TG35, TG37, TG43, TG45, TG47, TG53, TG55, TG57, TG63, TG65, TG67, and Landini Mistral series tractors including Mistral 40, Mistral 45, Mistral 50, Mistral 55.