The Case IH 1387290201 is a genuine OEM piston ring designed for a wide range of Case IH agricultural equipment. This essential engine component ensures proper compression and oil control within the cylinder, contributing to efficient engine operation and longevity. Manufactured to precise specifications, it provides a perfect fit and reliable sealing for compatible models including JX, MXM, MXU, Puma, Maxxum, and Farmall series tractors. Verify fitment with your specific machine model for optimal performance.