Sierra - Lower Unit Fill Tube - Standard - 9786Sierra Lower Unit Fill Tube Standard 9786 Flush and fill tool for small gearcase requiring the 10 oz. tube. Ideal for "do it yourself" in home maintenance. Includes appropriate lower unit fitting for specific applications. Features: Flush and fill tool for small gearcases requiring the 10 oz tube package Ideal for "do it yourself" in home maintenance Includes appropriate lower unit fitting for specific applications