Mercruiser Oil & Filters

      • Quicksilver High Performance Gear Lube
        List Price: $7.98
        Starting At: $7.58

        Quicksilver High-Performance Gear Lube SAE90 Quicksilver High Performance synthetic blend gear lube outperforms automotive gear oil in marine applications because of its specialized additive package design.  Continued use of this gear case...

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      • Quicksilver Conventional 25w-40 Engine Oil
        List Price: $7.72
        Starting At: $6.43

        Quicksilver Conventional 25w-40 Marine Inboard & Sterndrive Engine Oil Specifically formulated and developed to meet the needs of high-output sterndrive and inboard engines. Multi-viscosity 25W-40 oil formulated to eliminate thermal breakdown (no...

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      • Filter-Oil , Mercury - Mercruiser 35-866340Q03
        List Price: $9.77
        Starting At: $8.14

        Filter-Oil , Mercury - Mercruiser 35-866340Q03 The 866340Q03 oil filter fits all Mercury MerCruiser and Mercury inboard engines, except V-6 models with filter mounted on the engine block...

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      • Sierra 18-7824-2 Oil Filter Replaces 35-866340Q03
        List Price: $8.99
        Starting At: $5.81

        Sierra Oil Filter for Sterndrive and Inboard Engines Sierra oil filters are engineered with premium grade materials that will not only withstand but excel in the extreme environment of the marine world. Sierra ensures the excellent performance of their...

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      • Quicksilver Synthetic Blend Sterndrive Inboard Oil
        List Price: $9.60
        Starting At: $8.00

        Synthetic Blend Quicksilver/Mercury (25W-40) Engine Oil Specifically formulated and developed to meet the needs of: High-output sterndrive and inboard engines. Developed for the rigors of the marine environment. Industry-leading corrosion...

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      • Mercury-Mercruiser 35-866340K01 Oil Filter
        List Price: $9.77
        Starting At: $8.14

        Mercury-Mercruiser 35-866340K01 Oil Filter Mercury OEM oil filters screen particles smaller than 1/1000th of an inch, keeping engine oil cleaner for longer. Standard Mercury Oil Filters should be changed every 100 hours. Application: Mercruiser...

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      • Sierra High Performance Syn Blend Lower Unit Gear Lube
        List Price: $8.99
        Starting At: $7.62

        High Performance Synthetic Blend Gear Lube by Sierra Synthetic blended marine formulation reduces operating friction for increased performance and protection of gears, bearings and other gearcase components. Recommended for use in high performance...

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      • Sierra Full Synthetic Lower Unit Gear Lube
        List Price: $18.49
        Starting At: $11.45

        Sierra Full Synthetic Lower Unit Gear Lube - Qt Specifically formulated to optimize gear life by reducing friction and providing superior wear protection in severe operating conditions. The unique synthetic formulation is shear stable and resists...

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      • Sierra 18-7876-1 Oil Filter Replaces 35-866340Q03
        List Price: $9.99
        Starting At: $6.07

        18-7876-1 GM Marine Long Oil Filter by Sierra Sierra oil filters are engineered with premium grade materials that will not only withstand but excel in the extreme environment of the Marine world. Sierra ensures the excellent performance of their...

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      • Sierra 30W Synthetic Engine Oil
        List Price: $10.99
        Starting At: $7.75

        Full Synthetic SAE 30 Marine Engine Oil by Sierra Recommended for gasoline/diesel inboard and stern drive engines. A special blend of synthetic base oil and a balanced additive system that exceeds the FC-W requirements for marine engine oil...

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      • Sierra Type "C" Lower Unit Gear Lube
        List Price: $18.29
        Starting At: $12.80

        Sierra Type "C" Lower Unit Gear Lube Formulated for older model outboards and I/O's equipped with electric shift. Reduces friction and protects gears, bearings and other gearcase components. Replaces: OMC (System Matched) Premium Blend Sizes...

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      • Sierra 18-7879-1 Oil Filter Replaces 35-883702K
        List Price: $7.99
        Starting At: $5.58

        Sierra 18-7879-1 Oil Filter for Mercruiser, Volvo, OMC V-6 Sierra oil filters are engineered with premium grade materials that will not only withstand but excel in the extreme environment of the Marine world. Sierra ensures the excellent performance of...

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      • Quicksilver Premium Gear Lube
        List Price: $6.45
        Starting At: $6.13

        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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      • Quicksilver V6 Oil Filter
        List Price: $7.28
        Starting At: $6.07

        Fits GM V6 marine engines without remote oil filter

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      • Mercury-Mercruiser 35-881126K01 High Efficiency Oil Filter
        List Price: $23.49
        Starting At: $19.36

        Mercury-Mercruiser 35-881126K01 High Efficiency Oil Filter Mercury OEM oil filters screen particles smaller than 1/1000th of an inch, keeping engine oil cleaner for longer. This high level of screening efficiency assures a constant level of oil to...

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      Oil, Lube and Filters

      Mercruiser Oil for Sterndrive Engines

      Changing the oil on a Mercruiser sterndrive is not that difficult. With a little patience, this can be performed by a DIYer. Mercury recommends that you change your sterndrive oil every year or 100 hours of use. Wholesale Marine carries everything you need including Mercruiser oil for your sterndrive. Review these simple directions and you’ll soon determine if this is a project for a weekend afternoon.

      1)    Following your owner’s manual, remove the propeller. Next you’ll be starting the motor so make sure that no one, including animals, is near the stern before starting your motor.

      2)    If you are inside, use a fan to check for fuel or vapors to avoid possible carbon monoxide poisoning.

      3)    Ensure that your engine has a water supply.

      4)    Make sure to cover the area under the engine with rags--there will be oil leakage.

      5)    Start your motor and allow it to warm up. Turn it off, wait a few minutes and remove the dipstick.

      6)    Carefully thread the oil hand pump onto the end of the dipstick tube. If using an electric oil changer, follow manufacturer’s instructions.

      7)    Remove your oil into a container.

      8)    Replace the oil filter--Sierra makes a filter for almost every Mercruiser sterndrive, making sure to coat the new filter o-ring with clean oil.

      9)    Hand tighten the new filter.

      10) Use a filter wrench no more than ¾ turn to finish installing the filter.

      11) Check your owner’s manual to determine the engine oil capacity. Inline 4’s usually require up to 5 quarts while V8s can consume up to 7 quarts. We recommend Quicksilver Conventional 24W-40 Engine Oil in a gallon bottle or if you prefer synthetic oil try Quicksilver Synthetic Blend Sterndrive Inboard Oil

      12) Once filled, wait 5 minutes and check the oil level. Top up if necessary.

      13) Again ensure that the engine has water. Turn it on and let it warm up.

      14) Take an oil reading. Top up if necessary.

      15) Clean up and go boating!

      Wholesale Marine carries everything you’ll need for your Mercruiser. Oil changes are simple to perform and one call to Wholesale Marine ensures you’ll have everything you require for this project. If you have a question as to which oil or lube product is right for your boat, give us a call. We’re boating enthusiasts as well and will be glad to help you. Our representatives are available Monday through Friday, from 9:00 AM until 6:00 PM, EST so give us a call at (877) 388-2628.