The SEAL KIT GEAR HOUSING by RECMAR is a high-quality OEM replacement part designed specifically for Mercruiser engines. This kit includes the necessary components to effectively seal the gear housing, ensuring optimal performance and preventing any leaks or damage. With the OEM part number 683-W0001-21, you can trust that this seal kit is a perfect fit for your Mercruiser engine. Whether you're a professional mechanic or a DIY enthusiast, this seal kit is easy to install and will provide long-lasting durability. Don't compromise on the quality of your engine's gear housing seal - choose the SEAL KIT GEAR HOUSING by RECMAR for reliable and efficient performance.