The MD016317 is a genuine Mitsubishi OEM crankshaft rear oil seal, specifically designed for various Mitsubishi engines including K3E, K4E, S3L, S4L, L2E, L3E, S3Q2, and S4Q2. This critical engine component ensures a tight seal at the rear of the crankshaft, preventing oil leaks and maintaining optimal engine lubrication. It is a direct fit for Hanix H15B-2 mini excavators and other machinery utilizing these Mitsubishi engine models. With precise dimensions of 80mm inner diameter, 100mm outer diameter, and 10mm width, this seal guarantees reliable performance and durability for demanding applications.