The Replacement Zenoah Large Oil Seal 1850-21220 is designed to provide a secure and lasting seal for various Zenoah and Chung crankcases, ensuring optimal engine performance. Crafted with premium construction, this high-quality black seal guarantees durability and effective oil retention, preventing leaks and enhancing engine longevity. Whether you’re performing repairs or maintenance, this oil seal is the reliable solution for keeping your engine running smoothly.