The DEUTZ-FAHR 4118409 Piston Ring Set is an original equipment manufacturer (OEM) component designed for specific Deutz engine models. This high-quality ring set features a bore diameter of 100 mm and includes rings with thicknesses of 3 mm, 2.5 mm, and 4 mm. Essential for maintaining proper compression and oil control, this piston ring set ensures reliable and efficient operation of your agricultural or industrial machinery powered by compatible Deutz engines.