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      Marine Oil

      • Quicksilver Premium Gear Lube
        $7.49

        Premium Gear Lube Mercury Marine gear lube outperforms automotive gear oil in marine applications because of its specialized additive package designed for marine gear cases. Continued use of this gear case lubricant will: Provide maximum protection...

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      • Sierra 18-9200 Spline Grease Replaces 92-816391A4
        $9.49
        $7.49

        Sierra Pro Performance Spline Grease Sierra Pro Performance Spline Grease is specifically formulated for Marine applications. Premium lithium formulation for optimum corrosion protection in fresh and saltwater applications Ideal for marine trailer...

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      • Mercury 200-400HP L6 Verado Oil Change Kit 8M0188359
        $122.49
        $106.49

        Mercury 200-400HP L6 Verado Oil Change Kit 8M0188359 Genuine OEM Mercury-Mercruiser part. This Mercury 4-Stroke Oil Change Kit contains everything you need to change the oil on your 200-400HP L6 Verado Outboard. Mercury's line of DIY oil change...

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      • Sierra 25W-40 Conventional Engine Oil
        $11.49
        $9.99

        Sierra Marine 25W-40 4-Stroke Sterndrive Conventional Engine Oil 25W-40 4 STROKE MARINE STERN DRIVE ENGINE OIL has been formulated to provide excellent lubrication and corrosion protection. Stern drive and inboard engines operate under high load and...

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      • Yamalube Marine Gearcase Lubricant - Quart Front
        $14.36
        $12.49

        Yamalube SAE 90, 80W90 Marine Gearcase Lubricant The Yamalube is a quality gearcase lube for marine environments and optimal performance. The formula features both rust and corrosion inhibitors that help protect bearings & internal components from...

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      • Quicksilver 91-8M0072133 Gear Lube Pump
        $13.49
        $11.99

        Quicksilver 91-8M0072133 Gear Lube Pump Quicksilver universal gear lube pump. This pump fits any outboard or stern drive with a 3/8"-16 drain plug. The included adapter can be used for gear vases with a M8 x 1.25 drain plug. Use with quart or liter...

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      • Sierra TC-W3 Premium Marine Engine Oil
        $9.19
        $7.99

        Sierra Premium TC-W3 2-Cycle Outboard Engine Oil Sierra TC W3 oil is a high performance lubricant that has been manufactured and designed to meet and exceed all (Domestic & Import) engine manufacturers warranties. The TC-W3 formula provides superior...

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      • Quart of Quicksilver Premium 2-Cycle TC-W3 Outboard Engine Oil
        $11.99
        $9.99

        Quicksilver Premium 2-Cycle TC W3 Outboard Oil Quicksilver Premium TC W3 Oil is formulated to provide excellent 2-stroke lubrication for all horsepower outboards and other 2-stroke water- or air-cooled engines. An exclusive formula designed to help...

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      • Mercury/Mercruiser 91-8M0072135 Gear Lube Pump
        $13.49
        $11.99

        Mercury/Mercrusier 91-8M0072135 Gear Lube Pump OEM 91-8M0072135 Mercury Precision Gear Lube Pump. Fits all MerCruiser sterndrives and Mercury/Mariner Outboards except those models of Japanese origin. Also fits Mercury Speedmaster gear housings...

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      • Yamalube 5W-30 Synthetic 4 Stroke Engine Oil - Quart Front
        $17.24
        $14.99

        Yamalube 4M Synthetic 4 Stroke Engine Oil 5W-30 Yamalube 5W-30 is a fully synthetic FC-W NMMA certified marine oil designed for 4 stroke engines. This high performance oil is designed to help push your performance by increasing lubrication and...

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      • Yamalube Marine Performance 2 Stroke Engine Oil - Quart Front
        $13.21
        $11.49

        Yamalube Marine Performance 2 Stroke Engine Oil The Yamalube is a certified 2 stroke oil engine blend that delivers superb lubrication with excellent anti-wear and rust protection for outboard engines. Exclusive additives guard against power-robbing...

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      • Mercury Mercruiser 8M0182228 Sterndrive & Inboard Oil Change Kit
        $106.99
        $92.99

        Mercury Mercruiser Sterndrive & Inboard Oil Change Kit Genuine OEM Mercury-Mercruiser part. This Mercury 4-Stroke Oil Change Kit contains everything you need to change the oil on your Mercrusier Sterndrive & Inboards. Mercury's line of DIY oil...

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      • Quicksilver 25W-50 Synthetic Blend 4-Stroke Marine Oil
        $56.39
        $46.99

        Quicksilver 25W-50 Synthetic Blend 4-Stroke Marine Oil 92-8M0053664 The Quicksilver 25W-50 Synthetic Blend Oil is recommended for engines used in high performance applications. This oil provides maximum lubrication for your marine engine while also...

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      • Yamalube ACC-YAMSH-LD-00 Yamashield Protectant 12oz
        $11.99
        $10.49

        Yamalube ACC-YAMSH-LD-00 Yamashield Protectant 12oz Yamashield offers an advanced corrosion protection formulation ideal for outboards, Personal watercraft, and recreational watercraft. The formula provides long term protection by drying into a waxy,...

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      • Mercury Optimax DFI 2-Stroke Outboard Oil
        $76.79
        $63.99

        Mercury Optimax DFI 2-Stroke Synthetic Blend Outboard Oil Mercury Optimax DFI 2-Stroke Outboard Oil provides the best protection in all 2-stroke applications. This oil has been formulated to provide industry-leading protection against wear and corrosion...

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      • Mercury SAE 0W-30 Power Steering Fluid 92-858077K01
        $19.49
        $16.99

        Mercury SAE 0W-30 Synthetic Power Steering Fluid 92-858077K01 Mercury Synthetic Power Steering Fluid is for use in power steering systems on Mercury and Mariner Outboards where SAE 0W-30 oil is recommended. There is no need to drain the system before...

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      • Volvo 3851039 Power Steering & Trim Fluid
        $13.08
        $10.90

        Volvo 3851039 Power Steering & Trim Fluid The Volvo 3851039 fluid is designed for both Volvo Penta power & hydraulic steering and power trim systems. The formula helps resist oxidation with excellent rust and corrosion resistance. Designed to...

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      • Quicksilver Mercury 40/50/60 HP EFI 4-Stroke Oil Change Kit
        $60.49
        $52.49

        Quicksilver Mercury 40/50/60 HP EFI 4-Stroke Oil Change Kit The Quicksilver Mercury 40/50/60 HP EFI 4-Stroke Oil Change Kit has everything you need for your boat's routine oil change. This kit includes one liter of Quicksilver 25W-40 engine oil, an oil...

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      • Mercury Power Trim & Steering Fluid
        $7.49
        $6.99

        Mercury 92-858074K01 Power Trim & Steering Fluid Mercury 92-858074K01 Power Trim & Steering Fluid is for use in most power trim and power steering systems on Mercury, Mariner, and Force outboards and Mercury Mercruiser Sterndrives. You do not...

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      Marine Oil

      In order to keep your marine engine running and avoiding costly repairs, it is important to change out your boat oil during your routine maintenance. Just like your car engine needs oil, your boat engine requires oil. However, marine oil typically has extra additives that help protect the engine from corrosion, moisture, and oxidation that can develop from harsh marine conditions. Wholesale Marine knows how important it is to have high-quality boat oil, which is why they only carry the top brands like Quicksilver, Mercury, and Sierra.

      Marine Oil for All Types Of Engines

      For top engine performance, it is important to change your marine oil annually or after every 100 hours of use. So having quality oil on hand will make your job easier when the time comes. Make sure when you are selecting the right oil, you know what type of engine you have and what type of boat oil is best. There are 2-Stroke and 4-Stroke oils.

      Just as with our automotive counterparts, when shopping for marine oil, you should know that there are conventional and synthetic oils available, and whatever your boat requires, Wholesale Marine stocks both. For high-output outboards and inboards, the Quicksilver 25W-40 is a top choice for conventional marine engine oils. If you're shopping for the popular synthetic oil, Sierra’s 25W-40 Synthetic Blend Boat Oil is an excellent choice. This marine oil’s synthetic blend is formulated with antioxidants, anti-wear, and corrosion protection properties.

      When it is time for your routine maintenance on your boat, be sure to shop at Wholesale Marine. We carry a huge inventory of boat oils and lubricants needed to ensure that your engine remains at its optimal performance level. If you have questions about which marine oil is right for your engine, call our boat experts at 877-388-2628 Monday through Friday from 9:00 AM until 6:00 PM EST. We offer same day, flat rate shipping on most items.