Sierra Lithium Grease

Sierra Lithium Grease: Marine-Grade Protection Built for the Water

When it comes to keeping a boat running reliably in harsh environments, the quality of lubricants matters just as much as the quality of engine parts. Sierra — a brand with more than 58 years of history as a leading global manufacturer of aftermarket marine parts — brings that same engineering discipline to its line of lithium grease products, formulated specifically for the demands of marine use.

Purpose-Built for Fresh and Saltwater Environments

Most general-purpose greases are not designed to handle the corrosive conditions that marine equipment faces daily. Sierra's lithium grease addresses this directly. Sierra Pro Performance Grease features a premium lithium formulation engineered for optimum corrosion protection in both fresh and saltwater applications — a distinction that matters enormously for boaters who operate in coastal, brackish, or open-ocean conditions.

The formula covers a wide operating temperature range of -40°F to 350°F, making it effective in cold-weather launches and high-heat mechanical environments alike. Whether you're greasing trailer wheel bearings before a summer haul-out or maintaining critical drivetrain components mid-season, Sierra's lithium grease delivers consistent lubrication across conditions.

The Right Grease for the Right Marine Components

Sierra's lithium grease is specifically suited for the components that take the most punishment on a marine vessel and trailer. Recommended application points include:

• Marine trailer wheel bearings
• Universal joints (U-joints)
• Outdrive pivot joints and pivot pins
• Gimbal bearings
• Shaft splines

For shift mechanisms and areas requiring lighter application, Sierra also offers a lithium spray grease in aerosol form — an easy-to-use multi-purpose lubricant ideal for shift components and other tight spaces where a traditional grease gun won't reach.

Formats to Fit Your Maintenance Routine

Sierra makes it straightforward to stock the right format for the job. The Pro Performance Grease line is available in compact 3 oz. cartridges — well suited for quick field maintenance — as well as larger 8 oz. squeeze tubes and full-size 14 oz. grease gun cartridges for marina shops and serious DIY boaters who service multiple vessels.

Backed by a Legacy of OEM-Level Quality

Sierra, a brand of Dometic, has long supplied OEM engine manufacturers and boat builders, and all Sierra products are engineered to meet or exceed the original equipment parts they replace. That commitment to OEM-grade quality means boaters can trust Sierra lithium grease not just as a stopgap, but as a long-term maintenance solution. The brand's products are designed, tested, and supported from its distribution facility in Litchfield, Illinois, ensuring consistent quality and availability across the U.S.

For boaters who take maintenance seriously, Sierra's lithium grease is a trusted part of a complete seasonal and routine service regimen. Explore the full Sierra brand catalog or shop the complete selection of marine lithium grease products to find the right formulation for your vessel.