The GLT Bearing BMZL14050 cylinder liner is a high-quality engine component designed for robust performance and durability. This aftermarket cylinder sleeve is engineered to precise specifications, ensuring optimal engine compression and efficient oil control. It is a direct replacement for various Perkins 1004 series engines, including models 1004-4, 1004-4T, 1004-40, 1004-40T, and 1004-40TA. The liner also fits Massey Ferguson agricultural machinery that utilizes these Perkins engines, such as tractor models 390, 398, 3065, 3070, 3075, 698, 699, 3080, 3090, and 3095. It cross-references with OEM part numbers like Perkins 31358361 and U5LL0011, and Massey Ferguson 3638459M1, providing a reliable solution for engine rebuilds and maintenance.