Sierra Marine Lower Unit Fill Tubes
Lower Unit Fill Tube, Clear, Plastic, Gear Lube 10oz., Standard Lower Unit Fitting, Each
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Estimated Ship Date: Oct 26, 2026 Would you rather pick it up?
Overview
Sierra Marine Lower Unit Fill Tubes
To service your boat engine yourself you will need some special tools. Sierra Marine lower unit fill tubes and kits can help. These flush and fill tools (standard or import) are for small gearcases requiring a 10 oz. tube of gear lube and include the appropriate lower unit fitting for specific applications. Sierra also offers the standard fill tube in a kit along with two 10 oz. tubes of gear lubricant. Choose the product(s) you need for your boat maintenance.
Features of lubricant:
* Recommended for all general marine applications requiring a GL-5 class lubricant
* Ideal for replacing all old hypoid 90 application needs
* Formulated for use in freshwater or saltwater conditions and all standard marine applications
* Reduces friction and protects gears, bearings, and other gear case components
* Amber color
* 80W-90 weight
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Some parts are not legal for use in California or other states with similar laws / regulations
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