The Case IH 3147299R3 is a genuine OEM lock ring designed for critical fastening applications across a wide range of Case IH agricultural equipment. This essential component helps secure shafts, bearings, and other moving parts, preventing axial movement and ensuring reliable operation. Manufactured to original specifications, it provides a precise fit and durable performance for tractors including the 1066, MX series, and STX series, as well as numerous combine and cotton picker models.