Caterpillar 8F9960 O-Ring Seal is a genuine Cat replacement part designed to seal components in Caterpillar heavy equipment, including the 3512 and 3512B engines. This large-diameter O-ring has an inside diameter of 380.36 mm, ensuring a precise fit for compatible housings and grooves. The 8F9960 seal is cataloged as a Caterpillar O-ring, offering the OEM geometry and sealing capability required for high-demand engine service where a reliable leak path must be prevented.
