89984T4 Water Pump Impeller, Mercury Optimax 2.5 L Non-Pro Outboards 

For Mercury Optimax 2.5L Non-pro models (serial number 1B227000 and above). See your owner’s manual for replacement schedule. The Quicksilver brand is the leader in delivering uncompromising engine oils, parts and accessories to the marine industry for over 65 years.  Quicksilver is the premier supplier of Mercury Marine Original Equipment replacement engine parts, oils, and accessories, but also works to serve all Original Equipment brands in the marine and powersports industries.  It has earned a loyal following by providing the highest quality products that are tested through some of the most rigorous environments and testing procedures. No aftermarket company comes close to the level of research and design as Quicksilver; buying Quicksilver is buying performance, protection and peace of mind

• Provides cooling water to your outboard engine
• Produced to meet Mercury Marine original equipment manufacturer specifications to best protect your Mercury 4-stroke outboard.
• Impeller elastomers provide improved flexibility across broad temperature ranges throughout the boating season
• Designed for durability to provide higher flow rates and cooling flow to protect your engine
• Center insert resists tearing to ensure performance