Engineered for sterndrive and outboard applications, Quicksilver High-Performance SAE 90 Gear Lube has been extensively tested to ensure impressive protection against corrosion and wear and specifically formulated to help prevent failures due to water entering the gear housing. This kit includes a hand pump that fits outboards and sterndrives with a 3/8" 16-thread drain fill screw.a Lower unit gear oil formulated to protect against corrosion and excessive weara For outboard motor lower unit and sterndrive applications above 75 HPa Extreme pressure synthetic additives protect gears from metal to metal contacta Extends gear life in extreme conditions including high-speed and high-horsepower applicationsa Lower Unit Oil Kit includes one quart bottle of gear oil with hand pumpa Manufacturer Part Number 802891Q05 Extreme pressure synthetic additives protect gears from metal to metal contact Includes one quart bottle of gear lube and hand pump SAE 90 High-Performance Gear Lube and Pump Kit, 32 oz.