Sierra Premium Lower Unit Gear Lube 18-9600 - Available in 10 Oz Tube and Quart Bottle
Sierra Premium Lower Unit Gear Lube 18-9600 - Available in 10 Oz Tube and Quart Bottle
Sierra Premium Lower Unit Gear Lube is a GL-5 class gear lubricant formulated for outboard and sterndrive lower units operating in freshwater or saltwater. It is designed to reduce friction and protect gears, bearings, and other gear case components from wear and corrosion during all standard marine applications. The lubricant has a viscosity of 75W-90 or 80W-90, matching the requirements of most marine lower unit and gear case applications, and comes packaged in a plastic bottle for clean, controlled pouring at the fill and vent plugs.
This gear lube is part of the Sierra 18-9600 line and is sold in two sizes to match different service needs: a 10 Oz tube sized for topping off or a single small gear case fill, and a Quart bottle sized for a full lower unit gear lube change or keeping extra lubricant on board for routine maintenance. Both sizes share the same formulation, so the choice comes down to how much lubricant the job requires.
Specifications
- Brand: Sierra
- Manufacturer Part Number: 18-9600
- Product Type: Lower Unit Gear Lube
- Lubricant Class: GL-5
- Viscosity: 75W-90 or 80W-90
- Recommended Use: Freshwater and saltwater marine applications
- Specific Use: Reduces friction and protects gears, bearings, and other gear case components; helps prevent corrosion
- Item Form: Oil
- Container Material: Plastic
- Package Type: Bottle/Tube
- Available Sizes: 10 Oz, Quart
- OEM Cross Reference: Mercury 92-802844Q02 (10 Oz size); Mercury 92-858058Q01 (Quart size)
Sizes & Options
Choose the 10 Oz tube for a quick top-off or a single small-capacity gear case, or choose the Quart bottle for a complete lower unit gear lube change or to keep a fuller supply on hand. Select the size using the option list on this page; both are the same Sierra 18-9600 Premium Gear Lube formulation.
Frequently Asked Questions
What class of gear lube is the Sierra 18-9600? The Sierra 18-9600 Premium Lower Unit Gear Lube is a GL-5 class lubricant, suitable for all general marine applications that call for a GL-5 gear oil.
Can this gear lube be used in saltwater? Yes, Sierra 18-9600 Premium Gear Lube is formulated for use in both freshwater and saltwater marine applications.
What sizes does the Sierra 18-9600 gear lube come in? It is available as a 10 Oz tube or a Quart bottle, both using the same GL-5 formulation, so pick the size based on whether you need a top-off or a full gear lube change.
How much gear lube do I need for a full lower unit change? A full lower unit gear lube change typically calls for the Quart bottle of Sierra 18-9600, while the 10 Oz tube suits a top-off or a smaller gear case.
What is the viscosity of Sierra Premium Gear Lube? Sierra 18-9600 Premium Gear Lube has a viscosity of 75W-90 or 80W-90.
Does the Sierra 18-9600 gear lube cross-reference to a Mercury part number? The 10 Oz tube corresponds to Mercury 92-802844Q02 and the Quart bottle corresponds to Mercury 92-858058Q01.
What container does the gear lube come in? Sierra 18-9600 Premium Gear Lube is packaged in a plastic bottle or tube, depending on the size selected.
Does this gear lube protect against corrosion? Yes, one of its specific uses is helping prevent corrosion in addition to reducing friction and protecting gears, bearings, and other gear case components.
Is Sierra 18-9600 the same as Sierra's synthetic gear lube? No, Sierra 18-9600 is the standard GL-5 gear lube, while Sierra also offers a separate Hi-Performance Synthetic gear lube line under a different part number for buyers wanting a full-synthetic option.
What is included with each size of the Sierra 18-9600 gear lube? Each size is sold as a single container of Sierra Premium Gear Lube: a 10 Oz tube or a Quart bottle, with no additional accessories included.