Water Distribution Housings Replacement Fit for Mercury MerCruiser Mercruisermx 4.3 5.0 5.7 6.2 350 MAG MPI 1998 Water Distribute Ball，863631T1(2 Drain Plugs)

Compatible With : Mercury、Alpha、MerCruiser、Bravo、QuicksilverNote: Please check the part number before buying to make sure it fits your HousingsPackage Included:1 x Water Distribution Housings(2 Drain Plugs)About UsOur products are 100% brand new quality products, welcome to buy. With our best products and best services, we believe this will be a pleasant shopping experience.We care about our valued customers and hope to establish a long-term business relationship with you, so please help us do better.Quality Assurance1. Each item has been factory tested and meets or exceeds oem specifications.2. Provide lifetime warranty service. If you are not satisfied with the product or the product has quality problems, you can contact us at any time, we will provide you with a satisfactory answer and solve the after-sales problem for you.We attach great importance to quality and service. If you have any questions about the project or our services, please contact us first. We value your feedback, so we will strive to answer all inquiries within 24 hours. (Except Sundays and public holidays.)

• 【Compatible】: Water Distribution Housings Replacement Fit for Mercury、Alpha、MerCruiser、Bravo、Quicksilver Inboard 4.3L, 5.0L, 5.7L, 6.2L for MPI, 350 377 for Mag for MPI, 383 for Mag Stroker, 262 305 350 377 CID, V6 V8 systems. The housing features two drain plugs for convenient winterization. Verify your engine serial number and OEM part reference before ordering.
• 【OE】: OEM service parts 863631T1, 863802T2, 863444T2. Matches the original thermostat housing footprint, hose barb sizes, and bolt pattern to ensure a leak-free seal and proper coolant circulation through the engine and exhaust manifolds.
• 【High performance】: Fixing common failures such as a cracked or corroded housing, coolant leaks from the thermostat area, engine running hot at idle or under load, and saltwater-induced pitting that causes poor sealing. Replacing a compromised housing restores proper coolant flow and eliminates air pockets, preventing costly engine damage.
• 【High quality】: Manufactured from high-quality cast aluminum or corrosion-resistant alloy designed to withstand the harsh marine environment, including exposure to saltwater, coolant, and high operating temperatures. The included brass or stainless steel drain plugs resist seizing and make seasonal draining quick and reliable.
• 【After-sales service】：We warranty the quality of with a 2 Year Warranty. If you experience any problems, simply contact us for a REFUND/REPLACEMENT. Your satisfaction is our top priority!