Kroil penetrating oil, Super Lube synthetic grease and Corrosion Block grease beside a grease gun on a yacht deck.

MARINE GREASE & LUBRICANTS

Choose the Right Lubricant for Your Boat Maintenance Task

Shop marine grease, penetrating oils and specialty lubricants for component-specific boat maintenance. Match the product to your equipment requirements, then compare formulas, application formats and package sizes before ordering.

Grease, Lubricants & Penetrating Oils

Explore marine grease, marine lubricants and penetrating oils for maintaining boat hardware and equipment. Compare synthetic grease, water-resistant grease, precision oils, dry-film lubricants and snap or zipper care products by their documented purpose and application.

Choose according to the component and its maintenance requirements. Check the exact product’s specifications, material compatibility and instructions, then confirm the container size and package quantity. Grease tubes, cartridges, aerosols, kits and case packs represent different purchases.

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  • Kroil Original Penetrant - Aerosol - 10z Can - Aerokroil Formula
    Out Of Stock

    Kroil Original Penetrant - Aerosol - 10z Can - Aerokroil Formula MPN - KS102 SKU: 106274
    MPN: KS102

    $25.38
    $27.92
    $25.38
    Original Penetrant - Aerosol - 10z Can - Aerokroil FormulaLoosen frozen metal parts professionally, with Kroil Original Penetrant in liquid and aerosol (Aerokroil) formulas. Discover why Kroil has been trusted to help loosen bolts in various applications since 1939. Loosen frozen metal parts professionally,...
    $25.38
    $27.92
    $25.38
    Out Of Stock
  • Super Lube Multi-Purpose Synthetic Grease w/Syncolon® (PTFE) - 30lbs

    Super Lube Multi-Purpose Synthetic Grease with Syncolon® (PTFE) - 30lbs MPN - 41030 SKU: 102876
    MPN: 41030

    $774.15
    $851.57
    $774.15
    Multi-Purpose Synthetic Grease with Syncolon® - 30lbsSuper Lube Grease is a synthetic heavy-duty, multi-purpose lubricant with Syncolon® (PTFE). Synthetic base fluids and the addition of Syncolon® (PTFE) micro powders combine to form a premium lubricant that provides longer life protection against friction, wear, rust,...
    $774.15
    $851.57
    $774.15
  • Super Lube Silicone Heat Sink Compound - 3oz Tube

    Super Lube Silicone Heat Sink Compound - 3oz Tube MPN - 98003 SKU: 85523
    MPN: 98003

    $13.58
    $14.94
    $13.58
    Super Lube Silicone Heat Sink Compound in the 3 oz tube format is identified by MPN 98003 and Mariners Warehouse SKU 85523. This purchase supplies one 3 oz tube. A thermally conductive silicone compound for suitable component-to-heat-sink interfaces. Choose by the actual component, full...
    $13.58
    $14.94
    $13.58
  • Super Lube Sportsman's Kit w/ Oil, Grease, Cleaning Cloth, and Foam Swabs

    Super Lube Sportsman's Kit with Oil, Grease, Cleaning Cloth, and Foam Swabs MPN - 11520 SKU: 85527
    MPN: 11520

    $18.39
    $20.23
    $18.39
    Sportsman Kit LubricantThe Super Lube® Sportsman's Kit is designed specifically to meet the needs of hunters, fisherman and other sportsman by helping keep your sports gear working smoothly and reliably. These items come in a clear, plastic container for quick travel.The Super Lube® Sportsman's...
    $18.39
    $20.23
    $18.39
  • Super Lube Air Tool Pneumatic Lubricant - 4oz

    Super Lube Air Tool Pneumatic Lubricant - 4oz MPN - 12004 SKU: 85510
    MPN: 12004

    $9.88
    $10.87
    $9.88
    Super Lube Air Tool Pneumatic Lubricant in the 4 US fl oz bottle format is identified by MPN 12004 and Mariners Warehouse SKU 85510. This purchase supplies one 4 US fl oz bottle. A compact bottle of pneumatic lubricant for air tools whose service...
    $9.88
    $10.87
    $9.88
  • Super Lube Engine Assembly Grease - 3oz Tube

    Super Lube Engine Assembly Grease - 3oz Tube MPN - 19003 SKU: 85521
    MPN: 19003

    $15.20
    $16.72
    $15.20
    Super Lube Engine Assembly Grease in the 3 oz tube format is identified by MPN 19003 and Mariners Warehouse SKU 85521. This purchase supplies one 3 oz tube. A soft assembly grease for engine rebuild points where the engine service procedure permits this formula....
    $15.20
    $16.72
    $15.20
  • Super Lube O-Ring Silicone Lubricant - 4oz Bottle

    Super Lube O-Ring Silicone Lubricant - 4oz Bottle MPN - 56204 SKU: 85511
    MPN: 56204

    $13.34
    $14.67
    $13.34
    Super Lube O-Ring Silicone Lubricant in the 4 US fl oz bottle format is identified by MPN 56204 and Mariners Warehouse SKU 85511. This purchase supplies one 4 US fl oz bottle. A non-curing silicone oil for compatible O-rings where the assembly instructions permit...
    $13.34
    $14.67
    $13.34
  • Super Lube Multi-Purpose Synthetic Grease w/Syncolon® - 14.1oz Canister

    Super Lube Multi-Purpose Synthetic Grease with Syncolon® - 14.1oz Canister MPN - 41160 SKU: 85492
    MPN: 41160

    $26.50
    $29.15
    $26.50
    Super Lube Multi-Purpose Synthetic Grease with Syncolon® in the 14.1 oz canister format is identified by MPN 41160 and Mariners Warehouse SKU 85492. This purchase supplies one 14.1 oz canister. Open-container supply for approved manual or bulk dispensing using clean tools. Start by identifying...
    $26.50
    $29.15
    $26.50
  • Super Lube Synthetic Gear Oil IOS 220 - 1qt

    Super Lube Synthetic Gear Oil IOS 220 - 1qt MPN - 54200 SKU: 85509
    MPN: 54200

    $43.51
    $47.86
    $43.51
    Super Lube Synthetic Gear Oil ISO 220 in the 1 US qt bottle format is identified by MPN 54200 and Mariners Warehouse SKU 85509. This purchase supplies one 1 US qt bottle. A synthetic gear oil supply for machinery whose lubrication requirements call for...
    $43.51
    $47.86
    $43.51
  • Super Lube Multi-Purpose Synthetic Grease w/Syncolon® - 3oz Cartridge

    Super Lube Multi-Purpose Synthetic Grease with Syncolon® - 3oz Cartridge MPN - 21036 SKU: 85489
    MPN: 21036

    $13.41
    $14.75
    $13.41
    Super Lube Multi-Purpose Synthetic Grease with Syncolon® in the 3 oz cartridge format is identified by MPN 21036 and Mariners Warehouse SKU 85489. This purchase supplies one 3 oz cartridge. Small cartridge for a grease gun whose actual cartridge dimensions have been confirmed. Start...
    $13.41
    $14.75
    $13.41
  • Super Lube Food Grade Syncopen Penetrant - 11oz

    Super Lube Food Grade Syncopen Penetrant - 11oz MPN - 85011 SKU: 85516
    MPN: 85011

    $17.46
    $19.21
    $17.46
    Super Lube Syncopen® Synthetic Penetrant in the 11 oz aerosol can format is identified by MPN 85011 and Mariners Warehouse SKU 85516. This purchase supplies one 11 oz aerosol can. A penetrating solvent-and-oil formula for appropriate rusted fasteners and mechanisms, leaving a lubricating protective...
    $17.46
    $19.21
    $17.46
  • Super Lube Food Grade Silicone - 11oz

    Super Lube Food Grade Silicone - 11oz MPN - 91110 SKU: 85517
    MPN: 91110

    $19.09
    $21.00
    $19.09
    Super Lube Silicone Lubricant in the 11 oz aerosol can format is identified by MPN 91110 and Mariners Warehouse SKU 85517. This purchase supplies one 11 oz aerosol can. A silicone aerosol for approved component lubrication, with particular care around plastics and finished surfaces....
    $19.09
    $21.00
    $19.09
  • Super Lube Food Grade Anti-Seize w/Syncolon® - 11oz

    Super Lube Food Grade Anti-Seize with Syncolon® - 11oz MPN - 31110 SKU: 85513
    MPN: 31110

    $22.63
    $24.89
    $22.63
    Super Lube Listed 11 oz Product — Identity Confirmation Required is the neutral working identification for SKU 85513, which the source lists with code 31110. This product record requires a label check before an application can be selected. Keep the original store title and...
    $22.63
    $24.89
    $22.63
  • Super Lube Engine Assembly Grease - 8oz Brush Bottle

    Super Lube Engine Assembly Grease - 8oz Brush Bottle MPN - 19008 SKU: 85522
    MPN: 19008

    $37.91
    $41.70
    $37.91
    Engine Assembly Grease - 8oz Brush BottleSuper Lube® Engine Assembly Grease is a soft White NLGI 0 grease. Super Lube® Engine Assembly Grease is waterproof and is an excellent lubricant for anti-seize and engine assembly applications.Super Lube® Engine Assembly Grease can be used on...
    $37.91
    $41.70
    $37.91
  • Super Lube Food Grade Synthetic Oil - 1qt Trigger Sprayer

    Super Lube Food Grade Synthetic Oil - 1qt Trigger Sprayer MPN - 51600 SKU: 85518
    MPN: 51600

    $38.05
    $41.85
    $38.05
    Super Lube Multi-Use Synthetic Oil in the 1 US qt non-aerosol trigger sprayer format is identified by MPN 51600 and Mariners Warehouse SKU 85518. This purchase supplies one 1 US qt non-aerosol trigger sprayer. A quart trigger-spray oil package for approved lubrication tasks; confirm...
    $38.05
    $41.85
    $38.05

Check Product Compatibility


Match the product to your surface, finish, tool or equipment before ordering.

Review Product Details


Check the size, quantity and included items to choose the right option for your task.

Follow Product Directions


Review manufacturer instructions for preparation, application and any use restrictions.

Product Selection Support


Need help choosing? Contact our team with your task and the product you are considering.

Four Checks Before Choosing a Marine Lubricant

Compare the component, product role, compatibility requirements and package format to narrow your options.

  1. Match the Component

    Choose marine lubricants according to the part being maintained. Bearings, fittings, seals, fasteners and canvas hardware can require different products, so check the equipment’s maintenance instructions before selecting a formula.

  2. Choose the Product Role

    Marine grease, penetrating oil and dry-film lubricants serve different maintenance needs. Identify whether the task calls for ongoing lubrication, assistance with seized hardware or a specialty product for a specific component.

  3. Check Compatibility

    Review lubricant compatibility with the exact component and nearby materials. Check the product’s guidance for seals, plastics and painted finishes rather than assuming a marine label establishes universal suitability.

  4. Confirm Format & Quantity

    Compare grease cartridges, tubes, tubs and spray containers against your application setup. Confirm cartridge fit, pack quantity and included items so a single unit, refill, grease-gun kit or case pack matches your order.

Match Marine Lubricants to Your Component’s Requirements

Technician checking a boat component against maintenance instructions beside Super Lube grease and Kroil penetrating oil.

Choosing marine grease or another marine lubricant starts with the component’s maintenance requirements. A bearing, O-ring, threaded fastener and canvas zipper may need different formulas. Check the equipment manual for the required lubricant type, specification and application method before comparing products.

If you are considering a penetrating oil, replacement grease or specialty formula, have the equipment model, component details and existing lubricant information ready. These details help narrow relevant options and identify the product compatibility guidance to verify before ordering.

How to Choose Marine Grease and Boat Lubricants

Compare marine grease, penetrating oils and specialty boat lubricants using these five checks. Start with the maintenance task, then verify the exact product and package.

  1. Identify the Maintenance Task

    Decide whether you need lubrication, help loosening rusted hardware, seal care or a specialty maintenance product. A penetrating oil for seized fasteners serves a different role from grease specified for ongoing component lubrication.

  2. Read the Equipment Requirements

    Check whether the equipment calls for grease, oil or a dry-film lubricant. Match any required grade, viscosity or formulation to the exact product documentation rather than selecting solely by brand or marine labeling.

  3. Review Material Compatibility

    Identify nearby materials that may contact the lubricant, including seals, O-rings, plastics and painted finishes. Review the product’s compatibility guidance and exclusions before choosing a marine lubricant for that component.

  4. Match the Application Format

    Compare grease tubes, cartridges, tubs, aerosols and precision applicators against the maintenance procedure. Check whether your grease gun accepts the specified cartridge and whether the product’s residue suits the application.

Clean, Treat & Protect Your Boat Hardware

Preparation, targeted treatment and ongoing lubrication serve different maintenance roles. Follow the component’s approved procedure and choose marine grease, penetrating oils or specialty lubricants for the work required. Not every task needs all three steps.

  1. Clean — Prepare the Component

    Check the equipment and product instructions for removing dirt, contamination or existing lubricant before treatment. Use a cleaning method approved for the component and nearby materials. Preparing a fitting, fastener or mechanism helps you assess its condition and follow the specified lubrication procedure.

  2. Treat — Address the Maintenance Task

    Consider penetrating oil when its stated purpose matches rusted or seized metal hardware. For seals, snaps, zippers or other specialty parts, compare products specifically intended for that application. Check formula differences and material restrictions before applying a treatment.

  3. Protect — Apply the Specified Lubricant

    Choose marine grease, oil or a dry-film lubricant that meets the component’s ongoing maintenance requirements. Where corrosion protection is needed, verify that the exact product documents that function. A penetrant or protective treatment does not automatically replace the specified lubricant.

Single Units, Refills & Case Packs: Choose the Right Quantity

Comparison of a single Kroil penetrating oil can, Super Lube grease refills and a Kroil case pack.

Marine grease and penetrating oils are available in different container formats and package quantities. Compare tubes, tubs, cartridges, bottles and aerosols according to the product directions and your application setup. Check individual container sizes separately from the total quantity supplied.

A single lubricant container, replacement cartridge, multipack and case pack represent different orders. Before purchasing, confirm the exact product MPN, package quantity and included items. For grease-gun refills, check the cartridge format against your existing equipment.

Compare Marine Grease, Penetrating Oils & Specialty Lubricants

Use this comparison to identify the product role that matches your maintenance task. Confirm the exact product specifications and component requirements before ordering.

Product Type & Selection Focus Verify Before Ordering
Marine Grease — For components whose maintenance procedure specifies grease. Compare supported synthetic, white lithium and water-resistant formulas. Check the required grade, formulation, approved application, material compatibility and container format.
Penetrating Oils — For rusted or seized metal hardware where the exact formula is approved. Check formula differences, nearby materials, application restrictions and required follow-up maintenance.
Precision & General-Purpose Oils — For components requiring the matching oil and application method. Verify the required specification, viscosity where relevant, residue and applicator format.
Dry-Film Lubricants — For applications calling for a documented dry-film product. Check approved materials, preparation instructions, residue requirements and component restrictions.
O-Ring & Seal Lubricants — For the seal-care applications stated in the product documentation. Verify the exact seal material, equipment guidance and compatibility with the selected formula.
Snap & Zipper Lubricants — For manufacturer-approved canvas hardware, snaps and zippers. Check the hardware type, surrounding materials and product-specific application instructions.
Anti-Seize Products — For threaded assembly procedures that specifically call for anti-seize. Verify fastener materials, the approved formulation and equipment assembly or torque instructions.
Marine Grease Guns & Kits — Application equipment for compatible cartridges and fittings. Check cartridge format, fitting connection, included grease, kit contents and refill compatibility.

What Our Customers Says

Excellent marine grease for trailer wheel bearings

Used this heavy-duty marine grease on my boat trailer wheel bearings and gimbal bearing. It holds up exceptionally well against saltwater washouts and provides smooth lubrication under high heat and heavy loads.
Travis Henderson Verified buyer
August 2026

Fast-acting penetrating oil freed rusted prop shaft bolts

Had two stubborn, corrosion-locked bolts on the lower unit housing. Sprayed this penetrating oil, let it soak for 10 minutes, and the hardware loosened cleanly without rounding off or breaking.
Dustin Mercer Verified buyer
July 2026

Smooth operation for steering cables and throttle linkages

Lubricated the mechanical steering cable and outboard shift linkages with this marine lubricant. Eliminated stiff cable movement instantly and keeps linkages shifting smoothly.
Gavin Callahan Verified buyer
June 2026

Water-resistant lithium grease for tilt and trim pins

Applied to the tilt/trim cylinder pivot pins and engine swivel bracket. It stays put without washing away during launches or high-speed runs in rough water.
Leon Radford Verified buyer
May 2026

Fast delivery and great workshop lubricant spray

Arrived well-packaged and leak-free within a couple of days. The spray applicator allows precise spraying into tight mechanical splines and pivot joints.
Wesley Vance Verified buyer
April 2025

Prevents corrosion on exposed trailer jack gears

Coated the trailer jack winch gears and coupler latch with this protective grease. Prevents binding and stops rust formation from constant exposure to salt air.
Nathanael Drake Verified buyer
March 2025

Must-have lubricant kit for outboard maintenance

Essential product for routine prop shaft greasing during propeller changes. Prevents prop hub seizing and ensures hassle-free removal during maintenance.
Colton Briggs Verified buyer
February 2025

Helpful Guides

Explore guides and tips related to this collection.

Corrosion Block waterproof grease, Kroil penetrating oil and Super Lube lubricant on a marine maintenance bench.

Marine Grease, Penetrating Oil & Corrosion Inhibitor: How to Choose

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Corrosion Block grease and Super Lube O-Ring silicone grease beside trailer bearings, seals and a grease gun.

How to Choose Marine Grease for Bearings, Fittings & Seals

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Super Lube grease cartridges in small and full-size formats beside grease guns and an open cartridge carton.

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Frequently Asked Questions

Which marine grease should I choose?

Choose marine grease whose documented specifications match your component’s maintenance requirements. Check the required grade, formulation, approved materials and operating conditions, then compare the exact product and package. No single grease suits every boat component.

Can penetrating oil replace marine grease?

Not automatically. Penetrating oil may help loosen rusted or seized hardware without meeting the component’s ongoing grease requirement. Follow the equipment’s maintenance procedure and verify the exact formula before selecting a follow-up lubricant.

Can I mix different grease types?

Do not assume different grease types are compatible. Check the manufacturers’ grease compatibility guidance and the equipment’s changeover procedure. Similar color or marine labeling does not establish that two formulas can be mixed.

How do I know whether a grease cartridge fits my grease gun?

Compare the grease gun’s specified cartridge format and dimensions with the exact refill. Also check package contents: some listings include a gun and grease, while others contain cartridges or equipment only.

What lubricant should I use on boat snaps and zippers?

Choose a boat snap or zipper lubricant whose directions approve the hardware and surrounding materials. Review application instructions rather than assuming a general grease or penetrating spray is suitable.

Is the listed price for one container or a case pack?

The quantity depends on the exact listing. Check the package label, number of containers and size of each unit on the product page. If the title and description disagree, contact our team before ordering.

Need Help?

 Find the Right Product Information Before You Order 

Share the component you are maintaining and the product you are considering. Whether you are comparing marine grease, penetrating oil or a specialty lubricant, clear equipment requirements and package details help narrow the options and identify what to verify before ordering.

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