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Over 50 years of Trusted Marine Service

Oils & Lubricants

Marine Oils & Lubricants

Marine Engine Oils, Gear Lube, Transmission Fluid & Grease

Shop marine engine oil, transmission fluid, gear oil, hydraulic fluid, grease, oil filters, oil change pumps, corrosion protection fluids, and lubrication products for engine and drive-system maintenance.

Shop Oils & Lubricants Engine Oil Gear Oil
Fitment Check

Match oil type, viscosity, specification, engine model, drive type, transmission model, and service interval before ordering fluids.

Ask Parts Desk

Use the oil, lubricant, and fluid specifications listed by the engine or drive manufacturer. Confirm viscosity, marine rating, capacity, filter match, and service procedure before maintenance.

Quick ShopTop OEMShop by BrandFitmentFluid TypesServiceFAQOil Change PumpsOil Filters

Fitment

Use the Correct Specification, Not Just the Brand

Marine oils and fluids are selected by viscosity, certification, application, and equipment requirement. Check the engine manual, drive manual, transmission plate, or existing part number before mixing or replacing fluids.

10W-30 Marine Oil15W-40 Marine OilFC-W Oil

Service

Fluids Tell a Story

Milky oil, burnt smell, metal flakes, dark gear lube, low fluid level, or repeated contamination can point to leaks, water intrusion, overheating, wear, or improper service.

Record hours, date, oil type, filter part number, quantity, and observations at every oil or fluid change.

OIL

Engine Oils

Marine gasoline, diesel, 2-stroke, synthetic, and OEM-approved oils help protect engines under load.

DRV

Drive & Gear Fluids

Gear lube, lower-unit oil, transmission fluid, and hydraulic fluid protect drives, gearboxes, trim, and steering systems.

GRS

Grease & Additives

Marine grease, anti-rust agents, corrosion inhibitors, and service additives support long-term maintenance.

Maintenance

Build Oil Changes Around the Whole Service

A proper oil or fluid service includes filters, drain plugs, gaskets, pumps, absorbent pads, inspection, correct disposal, and a final leak check after running the engine.

Change filtersReplace oil filters and seals when changing oil unless the service manual says otherwise.
Use clean transfer toolsKeep oil pumps, funnels, hoses, and containers clean to avoid contamination.
Check for waterMilky engine oil or gear lube can indicate water intrusion and should be investigated.
Dispose properlyUsed oil, filters, and absorbents should be handled as waste fluids according to local rules.

FAQ

Oils & Lubricants Questions

What oil should I use in my marine engine?

Use the viscosity and specification listed by the engine manufacturer. Marine gasoline engines often require NMMA FC-W oil, while marine diesels and OEM engines may call for specific diesel or OEM-approved oils.

How often should boat engine oil be changed?

Follow the engine manual. Many recreational engines are serviced annually or by engine hours, whichever comes first, and more often after contamination or severe use.

Is gear oil the same as engine oil?

No. Gear oil, lower unit lube, engine oil, transmission fluid, and hydraulic fluid are different products with different specifications. Use the correct fluid for the component.

Why is my gear oil milky?

Milky gear oil usually suggests water contamination. Inspect seals, drain plugs, gaskets, and pressure-test the drive or gearcase as recommended before refilling.

Ready for Fluid Service?

Shop Marine Engine Oil, Gear Lube, Transmission Fluid, Grease & Filters

Search by engine brand, viscosity, OEM part number, oil type, fluid specification, filter part number, drive type, or maintenance task.

Shop Oils & LubricantsOil FiltersOil Change Pumps

Filters

Parfit™ Gasoline Filter

Parfit™ Gasoline Filter

$21.39 - $21.39
$21.39
$21.39 - $21.39
$21.39
Item locally warehoused

The PFF5510 gasoline fuel filter/water separator replaces standard fuel filters. It fits these popular engine applications with it's 11/16"-16 cent...

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$21.39 - $21.39
$21.39
$21.39 - $21.39
$21.39
Filter- 300Rc 490-690-790R 10M

Filter- 300Rc 490-690-790R 10M

$73.89 - $73.89
$73.89
$73.89 - $73.89
$73.89
Item locally warehoused

Racor replacement fuel filter element for 300RC and compatible 490/690/790R series housings—10 micron filtration (T element). Key Features Fuel fi...

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$73.89 - $73.89
$73.89
$73.89 - $73.89
$73.89
Rep. Element 2 Mic

Rep. Element 2 Mic

$63.79 - $63.79
$63.79
$63.79 - $63.79
$63.79
Item locally warehoused

Keep your fuel system protected with this Rep. Element 2 Mic replacement filter element designed to help remove fine contamination. Micron rating r...

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$63.79 - $63.79
$63.79
$63.79 - $63.79
$63.79
Racor R11T Replacement Element for Diesel Gas Spin-On Fuel/Water Separators

Racor R11T Replacement Element for Diesel Gas Spin-On Fuel/Water Separators

$46.89 - $46.89
$46.89
$46.89 - $46.89
$46.89
Item locally warehoused

Racor R11T replacement element for diesel/gas spin-on fuel/water separators—designed to match the element’s micron rating and end-cap color so you ...

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$46.89 - $46.89
$46.89
$46.89 - $46.89
$46.89
WSM 00651001 Fuel Filter O-Ring

WSM 00651001 Fuel Filter O-Ring

$4.23 - $4.23
$4.23
$4.23 - $4.23
$4.23
Item locally warehoused

WSM 00651001 Fuel Filter O-Ring is a replacement 0-ring designed to seal the 006-510 filter assembly. Key Features Replacement fuel filter 0-ring ...

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$4.23 - $4.23
$4.23
$4.23 - $4.23
$4.23
Racor Replacement Element for Turbine Fuel Filter/Water Seperators

Racor Replacement Element for Turbine Fuel Filter/Water Seperators

$24.29 - $24.29
$24.29
$24.29 - $24.29
$24.29
Item locally warehoused

Waterproof, rustproof, dirtproof. Engineered to repel water and remove solid contaminants before they can damage precision engine components. Racor...

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$24.29 - $24.29
$24.29
$24.29 - $24.29
$24.29
Filter-Repl 225R 10M

Filter-Repl 225R 10M

$85.69 - $85.69
$85.69
$85.69 - $85.69
$85.69
Item locally warehoused

Keep fuel filtration performing with this Racor Filter-Replacement element for the 225R series—listed as “Filter-Repl 225R 10M” with the 62-R26T el...

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$85.69 - $85.69
$85.69
$85.69 - $85.69
$85.69
Filter-Repl 225R 30M

Filter-Repl 225R 30M

$85.69 - $85.69
$85.69
$85.69 - $85.69
$85.69
Item locally warehoused

Keep your diesel fuel filtration on spec with the Racor Filter-Repl 225R 30M replacement element (62-R26P). This 30 micron element provides primary...

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$85.69 - $85.69
$85.69
$85.69 - $85.69
$85.69
Replacement Element 220 (2M)

Replacement Element 220 (2M)

$72.49 - $72.49
$72.49
$72.49 - $72.49
$72.49
Item locally warehoused

Replacement fuel filter element 220 (2M) for keeping your Racor fuel/water separator filtration at the micron level your system is designed to prot...

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$72.49 - $72.49
$72.49
$72.49 - $72.49
$72.49
Racor R120P Element For 4120R

Racor R120P Element For 4120R

$85.99 - $85.99
$85.99
$85.99 - $85.99
$85.99
Item locally warehoused

Racor R120P replacement element for the 4120R series—designed to restore fuel filtration performance as part of your spin-on filtration service rou...

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$85.99 - $85.99
$85.99
$85.99 - $85.99
$85.99
Filter-Repl 225R 2M

Filter-Repl 225R 2M

$82.29 - $82.29
$82.29
$82.29 - $82.29
$82.29
Item locally warehoused

Maintain clean fuel delivery with the Filter-Repl 225R 2M (62-R26S) replacement element for Racor-style 225R filtration. Micron-rated filtration he...

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$82.29 - $82.29
$82.29
$82.29 - $82.29
$82.29
Racor 500MA2 Marine Turbine Fuel Filter/Water Separator w/Metal Shield, 2 Micron

Racor 500MA2 Marine Turbine Fuel Filter/Water Separator w/Metal Shield, 2 Micron

$734.89 - $734.89
$734.89
$734.89 - $734.89
$734.89
Item locally warehoused

Turbine series filter assemblies are designed to be installed on the vacuum side of the fuel transfer pump for best efficiency and protect precisio...

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$734.89 - $734.89
$734.89
$734.89 - $734.89
$734.89
Replacement Element 220 (2M)

Replacement Element 220 (2M)

$73.99 - $73.99
$73.99
$73.99 - $73.99
$73.99
Item locally warehoused

Replacement Element 220 (2M) is a fuel filter replacement element designed for spin-on Racor 220 series filter assemblies, providing 2 micron (brow...

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$73.99 - $73.99
$73.99
$73.99 - $73.99
$73.99
Racor Replacement Element for Diesel Gas Spin-On Fuel/Water Separators

Racor Replacement Element for Diesel Gas Spin-On Fuel/Water Separators

$64.59 - $64.59
$64.59
$64.59 - $64.59
$64.59
Item locally warehoused

Keep your diesel spin-on fuel/water separator working at peak performance with this Racor replacement element. Choose the micron rating that matche...

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$64.59 - $64.59
$64.59
$64.59 - $64.59
$64.59
Racor Replacement Element for Diesel Gas Spin-On Fuel/Water Separators

Racor Replacement Element for Diesel Gas Spin-On Fuel/Water Separators

$50.79 - $50.79
$50.79
$50.79 - $50.79
$50.79
Item locally warehoused

Keep your fuel system running clean with this Racor replacement element for diesel/gas spin-on fuel/water separators. Element micron ratings affect...

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$50.79 - $50.79
$50.79
$50.79 - $50.79
$50.79
Replacement Element For 215R

Replacement Element For 215R

$81.99 - $81.99
$81.99
$81.99 - $81.99
$81.99
Item locally warehoused

Replacement Element For 215R—an element cartridge for Racor 215R spin-on diesel fuel filter/water separator assemblies, available in a 10-micron ra...

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$81.99 - $81.99
$81.99
$81.99 - $81.99
$81.99
Replacement Element 220 (2M)

Replacement Element 220 (2M)

$72.49 - $72.49
$72.49
$72.49 - $72.49
$72.49
Item locally warehoused

The Racor Replacement Element 220 (2M) is a spin-on diesel fuel filter element designed for fine filtration. Micron ratings determine filtration fi...

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$72.49 - $72.49
$72.49
$72.49 - $72.49
$72.49
Replacement Element For 215R

Replacement Element For 215R

$83.69 - $83.69
$83.69
$83.69 - $83.69
$83.69
Item locally warehoused

Replacement fuel filter element for the Racor 215R fuel filter/water separator assembly. Choose the correct micron rating for your filtration strat...

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$83.69 - $83.69
$83.69
$83.69 - $83.69
$83.69
Racor Replacement Element for Diesel Gas Spin-On Fuel/Water Separators

Racor Replacement Element for Diesel Gas Spin-On Fuel/Water Separators

$50.39 - $50.39
$50.39
$50.39 - $50.39
$50.39
Item locally warehoused

Racor replacement filter element for diesel gas spin-on fuel/water separators—engine filtration media designed to help protect the fuel system by t...

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$50.39 - $50.39
$50.39
$50.39 - $50.39
$50.39
Racor Replacement Element for Diesel Gas Spin-On Fuel/Water Separators

Racor Replacement Element for Diesel Gas Spin-On Fuel/Water Separators

$65.99 - $65.99
$65.99
$65.99 - $65.99
$65.99
Item locally warehoused

Keep your Racor Spin-On fuel/water separator working at its best with this replacement element. Correct micron selection helps match your engine’s ...

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$65.99 - $65.99
$65.99
$65.99 - $65.99
$65.99
Racor 60 GPH Turbine Fuel Filter/Water Separator w/Clear Bowl, 2 Micron

Racor 60 GPH Turbine Fuel Filter/Water Separator w/Clear Bowl, 2 Micron

$592.19 - $592.19
$592.19
$592.19 - $592.19
$592.19
Item locally warehoused

Turbine series filter assemblies are designed to be installed on the vacuum side of the fuel transfer pump for best efficiency and protect precisio...

View full details
$592.19 - $592.19
$592.19
$592.19 - $592.19
$592.19
Racor Replacement Element for Diesel Gas Spin-On Fuel/Water Separators

Racor Replacement Element for Diesel Gas Spin-On Fuel/Water Separators

$64.59 - $64.59
$64.59
$64.59 - $64.59
$64.59
Item locally warehoused

Keep your fuel system filtration on track with this Racor replacement element for diesel gas spin-on fuel/water separators. Choose the micron ratin...

View full details
$64.59 - $64.59
$64.59
$64.59 - $64.59
$64.59
Racor 2040V2 Replacement Element for Turbine Fuel Filter/Water Seperators

Racor 2040V2 Replacement Element for Turbine Fuel Filter/Water Seperators

$24.89 - $24.89
$24.89
$24.89 - $24.89
$24.89
Item locally warehoused

Waterproof, rustproof, dirtproof. Engineered to repel water and remove solid contaminants before they can damage precision engine components. Racor...

View full details
$24.89 - $24.89
$24.89
$24.89 - $24.89
$24.89
Racor 2020V2 Replacement Element for Turbine Fuel Filter/Water Seperators

Racor 2020V2 Replacement Element for Turbine Fuel Filter/Water Seperators

$28.99 - $28.99
$28.99
$28.99 - $28.99
$28.99
Item locally warehoused

Waterproof, rustproof, dirtproof. Engineered to repel water and remove solid contaminants before they can damage precision engine components. Racor...

View full details
$28.99 - $28.99
$28.99
$28.99 - $28.99
$28.99
Racor Replacement Element for Diesel Gas Spin-On Fuel/Water Separators

Racor Replacement Element for Diesel Gas Spin-On Fuel/Water Separators

$50.39 - $50.39
$50.39
$50.39 - $50.39
$50.39
Item locally warehoused

Racor replacement element for diesel/gas spin-on fuel/water separators (SKU 62-R12T). This is a 10 micron element—designed to help protect your eng...

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$50.39 - $50.39
$50.39
$50.39 - $50.39
$50.39
Racor Replacement Element for Turbine Fuel Filter/Water Seperators

Racor Replacement Element for Turbine Fuel Filter/Water Seperators

$43.79 - $43.79
$43.79
$43.79 - $43.79
$43.79
Item locally warehoused

Waterproof, rustproof, dirtproof. Engineered to repel water and remove solid contaminants before they can damage precision engine components. Racor...

View full details
$43.79 - $43.79
$43.79
$43.79 - $43.79
$43.79
Racor 2040V30 Replacement Element for Turbine Fuel Filter/Water Seperators

Racor 2040V30 Replacement Element for Turbine Fuel Filter/Water Seperators

$24.89 - $24.89
$24.89
$24.89 - $24.89
$24.89
Item locally warehoused

Waterproof, rustproof, dirtproof. Engineered to repel water and remove solid contaminants before they can damage precision engine components. Racor...

View full details
$24.89 - $24.89
$24.89
$24.89 - $24.89
$24.89
Racor 2040V10 Replacement Element for Turbine Fuel Filter/Water Seperators

Racor 2040V10 Replacement Element for Turbine Fuel Filter/Water Seperators

$24.89 - $24.89
$24.89
$24.89 - $24.89
$24.89
Item locally warehoused

Waterproof, rustproof, dirtproof. Engineered to repel water and remove solid contaminants before they can damage precision engine components. Racor...

View full details
$24.89 - $24.89
$24.89
$24.89 - $24.89
$24.89
Racor Replacement Element for Turbine Fuel Filter/Water Seperators

Racor Replacement Element for Turbine Fuel Filter/Water Seperators

$43.79 - $43.79
$43.79
$43.79 - $43.79
$43.79
Item locally warehoused

Waterproof, rustproof, dirtproof. Engineered to repel water and remove solid contaminants before they can damage precision engine components. Racor...

View full details
$43.79 - $43.79
$43.79
$43.79 - $43.79
$43.79
Sierra 99184 Repalcement Racor Turbine Fuel Water Separator Filter, 30 Micron

Sierra 99184 Repalcement Racor Turbine Fuel Water Separator Filter, 30 Micron

$21.99 - $21.99
$21.99
$21.99 - $21.99
$21.99
Item locally warehoused

Keep your fuel filtration system performing with the Sierra 99184 Replacement Racor Turbine Fuel Water Separator Filter (30 micron). This replaceme...

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$21.99 - $21.99
$21.99
$21.99 - $21.99
$21.99
Sierra 99183 Repalcement Racor Turbine Fuel Water Separator Filter, 30 Micron

Sierra 99183 Repalcement Racor Turbine Fuel Water Separator Filter, 30 Micron

$21.69 - $21.69
$21.69
$21.69 - $21.69
$21.69
Item locally warehoused

Sierra replacement fuel water separator filter for Racor Turbine-style systems—30 micron filtration with an easy-grip bail for quick element remova...

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$21.69 - $21.69
$21.69
$21.69 - $21.69
$21.69
Racor Replacement Element for Turbine Fuel Filter/Water Seperators

Racor Replacement Element for Turbine Fuel Filter/Water Seperators

$43.79 - $43.79
$43.79
$43.79 - $43.79
$43.79
Item locally warehoused

Waterproof, rustproof, dirtproof. Engineered to repel water and remove solid contaminants before they can damage precision engine components. Racor...

View full details
$43.79 - $43.79
$43.79
$43.79 - $43.79
$43.79
Racor 2020V10 Replacement Element for Turbine Fuel Filter/Water Seperators

Racor 2020V10 Replacement Element for Turbine Fuel Filter/Water Seperators

$28.99 - $28.99
$28.99
$28.99 - $28.99
$28.99
Item locally warehoused

Waterproof, rustproof, dirtproof. Engineered to repel water and remove solid contaminants before they can damage precision engine components. Racor...

View full details
$28.99 - $28.99
$28.99
$28.99 - $28.99
$28.99
Sierra 99293 Fuel/Water Separator Diesel Kit W/ Bowl For Racor, 10 Micron

Sierra 99293 Fuel/Water Separator Diesel Kit W/ Bowl For Racor, 10 Micron

$158.49 - $158.49
$158.49
$158.49 - $158.49
$158.49
Item locally warehoused

Complete Kit Containing Filter, Collection Bowl and Bracket Fast and simple element changing with spin-on design Meets OEM specifications for remo...

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$158.49 - $158.49
$158.49
$158.49 - $158.49
$158.49
Racor 2020V30 Replacement Element for Turbine Fuel Filter/Water Seperators

Racor 2020V30 Replacement Element for Turbine Fuel Filter/Water Seperators

$28.99 - $28.99
$28.99
$28.99 - $28.99
$28.99
Item locally warehoused

Waterproof, rustproof, dirtproof. Engineered to repel water and remove solid contaminants before they can damage precision engine components. Racor...

View full details
$28.99 - $28.99
$28.99
$28.99 - $28.99
$28.99
Sierra 99182 Repalcement Racor Turbine Fuel Water Separator Filter, 10 Micron

Sierra 99182 Repalcement Racor Turbine Fuel Water Separator Filter, 10 Micron

$21.69 - $21.69
$21.69
$21.69 - $21.69
$21.69
Item locally warehoused

Sierra 99182 Replacement Racor Turbine Fuel Water Separator Filter is a 10-micron replacement element made for Racor Turbine FWS filter housings. H...

View full details
$21.69 - $21.69
$21.69
$21.69 - $21.69
$21.69
Sierra 99184 Repalcement Racor Turbine Fuel Water Separator Filter, 10 Micron

Sierra 99184 Repalcement Racor Turbine Fuel Water Separator Filter, 10 Micron

$20.99 - $20.99
$20.99
$20.99 - $20.99
$20.99
Item locally warehoused

Sierra 99184 replacement for Racor Turbine fuel water separator (FWS) filters—10 micron filtration for helping protect your fuel system from water ...

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$20.99 - $20.99
$20.99
$20.99 - $20.99
$20.99
Fuel / Water Separator Kit

Fuel / Water Separator Kit

$89.79 - $89.79
$89.79
$89.79 - $89.79
$89.79
Item locally warehoused

Sierra fuel water separators remove over 98.8% of emulsified water from your gasoline. Sierra's 10 micron filters are over 90% efficient at removin...

View full details
$89.79 - $89.79
$89.79
$89.79 - $89.79
$89.79

Sierra 99294 Fuel/Water Separator Diesel Kit W/ Bowl For Racor, 2 Micron

$158.49 - $158.49
$158.49
$158.49 - $158.49
$158.49
Item locally warehoused

Overview Diesel fuel/water separator kit designed for Racor-compatible diesel engines. This complete kit includes a filter element, collection bowl...

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$158.49 - $158.49
$158.49
$158.49 - $158.49
$158.49
Fuel Filter, Yanmar

Fuel Filter, Yanmar

$18.39 - $18.39
$18.39
$18.39 - $18.39
$18.39
Item locally warehoused

A Sierra fuel filter replacement for Yanmar engines—identified by Sierra SKU 47-79960 (47-79960). Key Features Fuel filter replacement for Yanmar ...

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$18.39 - $18.39
$18.39
$18.39 - $18.39
$18.39
Sierra 79809 Yamaha Replacement Fuel Filter Element

Sierra 79809 Yamaha Replacement Fuel Filter Element

$36.19 - $36.19
$36.19
$36.19 - $36.19
$36.19
Item locally warehoused

Keep fuel flowing cleanly with the Sierra 79809 Yamaha Replacement Fuel Filter Element (47-79809). This replacement fuel filter element is designed...

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$36.19 - $36.19
$36.19
$36.19 - $36.19
$36.19
Sierra 8622 Suzuki Fuel Filter

Sierra 8622 Suzuki Fuel Filter

$56.39 - $56.39
$56.39
$56.39 - $56.39
$56.39
Item locally warehoused

Keep your Suzuki outboard’s fuel system performing at its best with the Sierra 8622 Suzuki Fuel Filter (47-8622). Designed as a replacement fuel fi...

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$56.39 - $56.39
$56.39
$56.39 - $56.39
$56.39

Sierra 99192 Fuel/Water Separator Gas Kit w/ Clear Bowl For Racor

$168.79 - $168.79
$168.79
$168.79 - $168.79
$168.79
Item locally warehoused

Overview Fuel/Water Separator Gas Kit with Clear Bowl for marine fuel systems. Designed for outboard engines, it features a corrosion-resistant pai...

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$168.79 - $168.79
$168.79
$168.79 - $168.79
$168.79
Fuel / Water Separator Kit

Fuel / Water Separator Kit

$89.19 - $89.19
$89.19
$89.19 - $89.19
$89.19
Item locally warehoused

Sierra fuel water separators remove over 98.8% of emulsified water from your gasoline. Sierra's 10 micron filters are over 90% efficient at removin...

View full details
$89.19 - $89.19
$89.19
$89.19 - $89.19
$89.19
Fuel / Water Separator Bonus Pack

Fuel / Water Separator Bonus Pack

$110.19 - $110.19
$110.19
$110.19 - $110.19
$110.19
Item locally warehoused

Sierra fuel water separators remove over 98.8% of emulsified water from your gasoline. Sierra's 10 micron filters are over 90% efficient at removin...

View full details
$110.19 - $110.19
$110.19
$110.19 - $110.19
$110.19
Fuel / Water Separator Kit

Fuel / Water Separator Kit

$77.49 - $77.49
$77.49
$77.49 - $77.49
$77.49
Item locally warehoused

Sierra fuel water separators remove over 98.8% of emulsified water from your gasoline. Sierra's 10 micron filters are over 90% efficient at removin...

View full details
$77.49 - $77.49
$77.49
$77.49 - $77.49
$77.49
In-Line Fuel Filter

In-Line Fuel Filter

$13.19 - $13.19
$13.19
$13.19 - $13.19
$13.19
Item locally warehoused

Keep fuel flow clean with this Sierra in-line fuel filter. Designed for marine fuel line applications using 5/16" fuel hose/barbs. Key Features In...

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$13.19 - $13.19
$13.19
$13.19 - $13.19
$13.19
Sierra 7981 Mercury/Mercruiser Replacement Fuel Filter Element

Sierra 7981 Mercury/Mercruiser Replacement Fuel Filter Element

$50.29 - $50.29
$50.29
$50.29 - $50.29
$50.29
Item locally warehoused

Refer to the Sierra catalog for complete application information.

$50.29 - $50.29
$50.29
$50.29 - $50.29
$50.29