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      Mercury Outboard Parts Product Listings

      • Sierra 18-5227-1 Spark Plug Wire 9" Replaces 84-813715A1
        $29.89
        $21.49

        Spark Plug wire 9" for Mercury and Mariner Premium Marine Wire Leads Magnetic Suppression Core Manufactured for your specific application.  Features: 9" length Metallic core wire. 7mm copper core wire Durable stainless steel wound conductor...

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      • Sierra 18-6778 Tilt/Trim Reservoir Replaces 883166A2
        $107.19
        $77.19

        Sierra 18-6778 Tilt/Trim Reservoir Sierra Top Mount Tilt/Trim Reservoir for Oildyne P/T Pump with plastic reservoir & Tilt/Trim motors with 4 screw attachments. Interchangeable with: Mallory 9-18612 Mercruiser Stern...

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      • Seloc Service Manual, Mercury Outboard 4-Stroke 2005-2011
        $83.19
        $55.79

        Seloc Marine Manuals: The most comprehensive information available. Simple to follow illustrated procedures. Hundred of drawings, exploded views, photos and tables. Troubleshooting, specifications and wiring diagrams. Over 40 titles covering...

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      • Sierra 18-7818-1 Fuel Pump Kit Replaces 42909A4
        $21.59
        $16.89

        Sierra 18-7818-1 Fuel Pump Kit for Mercury and Mariner Outboards Fits: 70 hp (Serial No. A996142 & UP) 75 hp (3 Cylinders) (Serial No. A996142-D283221) 80 hp (3 Cylinders) (Serial No. A966142 & UP) 90 hp (3 Cylinders) (Serial No...

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      • SEI Mercury Outboard 3.0L Replacement Lower Unit 1.75, 25"
        $1,670.52
        $1,392.10

        Sterndrive Engineering Mercury Outboard 3.0L Replacement Lower Unit 1.75:1, 25" Driveshaft Note for purchasing: You must verify your Gear Ratio. Call for application assistance if needed, and have your engine serial number ready when calling...

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      • Sierra 18-7005 Carburetor Kit Replaces 1395-6452
        $10.69
        $9.09

        Sierra 18-7005 Carburetor Gasket Kit for Mercury, Mariner Sierra high-quality engine parts are designed to meet OEM specifications.  Interchangeable with: EMP 1300-01136 GLM 40420 Mallory 9-37300 Mercury...

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      • Seloc Service Manual, Mercury Outboard 1965 - 1989
        $83.19
        $55.79

        Seloc Marine Manuals: The most comprehensive information available. Simple to follow illustrated procedures. Hundred of drawings, exploded views, photos and tables. Troubleshooting, specifications and wiring diagrams. Over 40 titles covering...

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      • Sierra 18-7965-1 Fuel Water Separator Assembly
        $48.59
        $34.99

        Sierra 18-7965-1 10 Micron Compact Fuel Water Separator Assembly Sierra high-quality engine parts are designed to meet OEM specifications. Features aluminum bracket for mounting in freshwater conditions and includes brass plugs to allow easy flow-thru...

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      • Sierra 18-5849 Relay Shrouded Trim Replaces 882751A1
        $22.09
        $15.89

        Sierra 18-5849 Mercury Power Trim Relay for Outboards  Fits Power Trim Relay used on most 2 & 4 Stroke (non-Verado) engines. HP Serial # Power Trim Relay Letter 9.9 (4-STROKE)(323CC) 0G760300-0T979999 - - 15...

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      • NGK IZFR5J Spark Plug
        $27.49
        $19.99

        NGK IZFR5J Spark Plug NGK Laser Iridium spark plugs offer the best combination of performance and longevity. The iridium tipped center electrode provides durability six times harder than platinum. NGK's high-grade pure alumina ceramic and 98% pure...

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      • Mercury - Mercruiser 57-8M0026410 Serpentine Belt
        $76.19
        $63.49

        Mercury - Mercruiser 57-8M0026410 Serpentine Belt Genuine OEM Mercury-Mercruiser part. Special Order Mercury Marine Information: Additional Handling Time: Item transfers from an alternate warehouse requires an additional 1–3 business days to...

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      • Quicksilver 8M0082880 Drain Plug Seal
        $5.39
        $4.49

        Quicksilver 8M0082880 Drain Plug Seal Gear case seal (washer) kit 8M0082880 is for use on select 5hp Mercury propane fueled outboards (serial No. 0R936270 and above), 8/9.9hp 4-stroke outboards (serial No. 0R008146 and above), 15-20hp Mercury EFI...

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      • Mercury - Mercruiser 8M0204680 Seal
        $3.99
        $3.49

        Mercury-MerCruiser 26-8M0204680 Gear Housing Seal The Mercury-MerCruiser 26-8M0204680 Gear Housing Seal is a genuine OEM replacement seal for select MerCruiser sterndrive applications. This seal is used on compatible MerCruiser 1, MC-1, R, MR, Alpha...

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      • Mercury - Mercruiser 1395-811223-1 Carb Gasket Set Od 0 Thumbnail Image
        $14.39
        $11.99

        Quicksilver 8112231 Carburetor Gasket Set for Mercury & Mariner 2-Stroke Outboards Quicksilver 8112231 carburetor gasket set is designed for Mercury and Mariner 2-stroke outboards from 30HP to 125HP. Includes essential gaskets for servicing...

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      • Flo-Torque Ii Assembly Kit, Mercury - Mercruiser 835257K-1
        $80.99
        $71.49

        Mercury 835257K1 Flo-Torq II Propeller Hub Kit The Mercury 835257K1 Flo-Torq II Propeller Hub Kit is a genuine Mercury hub kit designed to help protect the drivetrain from minor damage-causing impacts. The Flo-Torq II system uses a specialized drive...

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      Shop Mercury Outboard Parts

      Wholesale Marine stocks thousands of OEM and aftermarket marine engine parts, including Mercury outboard parts for routine maintenance, repairs, and complete engine service. Whether you are replacing a worn component, servicing an engine system, or preparing your outboard for the boating season, our selection includes genuine Mercury parts and trusted aftermarket alternatives.

      Shop Mercury replacement parts for cooling, fuel, ignition, electrical, lubrication, control, gearcase, trim, and propulsion systems.

      Browse our selection to find parts for Mercury outboard maintenance, repair, and engine service.

      Find the Right Parts for Your Mercury Outboard

      Mercury outboard parts can vary by engine model, horsepower, production range, model year, and serial number. Two outboards with the same horsepower rating may not always use the same components, so confirm your engine information before ordering whenever possible.

      Use our Mercury Engine Parts Finder to narrow the available parts by engine model and part type. This makes it easier to locate maintenance items, repair components, and replacement parts for your specific Mercury outboard.

      When confirming fitment, have the following information available:

      • Engine model number
      • Serial number
      • Horsepower
      • Model year or production information
      • Existing OEM part number, when available

      Use Mercury Engine Breakdowns and Boat Schematics

      A Mercury engine breakdown provides an exploded view of the systems and assemblies within the outboard. These diagrams can help you determine where a component is installed, identify surrounding hardware, and see whether related seals, gaskets, fasteners, or service parts may also be required.

      Our Mercury boat schematics organize components by engine model and assembly, making it easier to locate parts for cooling, fuel, ignition, electrical, powerhead, gearcase, control, and trim systems. Select the correct Mercury outboard model and assembly before reviewing the available OEM and aftermarket replacement parts.

      The number displayed beside a component in an engine breakdown may be a diagram reference number rather than the orderable manufacturer part number. Match the reference number to the accompanying parts list to confirm the current part number and determine whether the original number has been superseded.

      OEM and Aftermarket Mercury Outboard Parts

      Wholesale Marine offers both genuine OEM Mercury components and aftermarket replacement parts. OEM parts are manufactured or approved for the original Mercury application. Aftermarket parts are produced by other manufacturers and may provide additional availability, value, or service options while replacing the same type of engine component.

      Always review the listed fitment information before selecting a replacement. When an original Mercury part number has been discontinued or superseded, the current replacement may use a different part number while serving the same application.

      Common Mercury Maintenance and Repair Parts

      Regular maintenance helps protect your Mercury outboard from corrosion, overheating, fuel-system problems, lubrication issues, and premature component wear. The parts required will depend on the engine model, operating conditions, and recommended service interval.

      Common Mercury outboard maintenance and repair parts include:

      • Anodes: Help protect submerged metal components from galvanic corrosion.
      • Fuel-system parts: Include fuel filters, pumps, lines, carburetor components, and fuel-injection parts.
      • Cooling-system parts: Include water pumps, impellers, thermostats, housings, and related seals.
      • Ignition parts: Include spark plugs, ignition coils, stators, switches, and other starting and ignition components.
      • Electrical parts: Include starter motors, relays, sensors, switches, and charging-system components.
      • Oil and filters: Support proper lubrication and routine service for compatible Mercury outboards.
      • Gearcase and drive parts: Transfer engine power through the lower unit to the propeller.
      • Propellers and propeller hardware: Transfer power to the water and help determine acceleration, engine speed, handling, and overall boat performance.
      • Control cables: Support accurate throttle and shift operation.
      • Trim-system parts: Include trim motors, relays, seals, and related components used to adjust the outboard’s running angle.
      • Maintenance kits: Combine commonly replaced service parts for specific Mercury models and service intervals.

      Maintain Mercury Two-Stroke and Four-Stroke Outboards

      Mercury two-stroke and four-stroke outboards have different maintenance requirements, so always follow the service schedule and specifications for your exact engine model. Routine service may include replacing engine oil and filters, gearcase lubricant, fuel filters, spark plugs, water pump components, anodes, and other wear items.

      Inspect cooling-system components regularly and flush the outboard with fresh water as recommended, especially after use in saltwater or silty conditions. Fuel lines, filters, electrical connections, propeller hardware, control cables, and corrosion-protection components should also be checked periodically for wear or damage.

      Refer to your Mercury owner’s or service manual for the correct maintenance intervals, fluids, capacities, replacement procedures, and torque specifications. For help determining the correct amount of engine oil and gear lubricant, see our Mercury Marine oil and gear lube capacity guide.

      Get Help Identifying Mercury Outboard Parts

      Not sure which part fits your motor? Our marine parts specialists can help you review engine information, compare part numbers, navigate engine breakdown diagrams and boat schematics, and narrow down the correct component for your Mercury outboard.

      Call Wholesale Marine at 877-388-2628 Monday through Friday from 8:30 AM to 4:30 PM for assistance. Having your model number, serial number, horsepower, and existing part number ready will help our team research the application more accurately. If you need help locating or understanding that information, see our guide on how to identify your Mercury outboard serial number, model, and year.

      Mercury Outboard Parts FAQs

      Does Wholesale Marine carry OEM and aftermarket Mercury outboard parts?

      Yes. Wholesale Marine stocks thousands of OEM and aftermarket marine engine parts, including genuine Mercury components and trusted aftermarket replacements. Available parts cover routine maintenance, cooling, fuel, ignition, electrical, lubrication, powerhead, gearcase, control, trim, and propulsion systems.

      How do I find the correct Mercury part for my outboard?

      Start with your engine model number, serial number, and horsepower, then use the Wholesale Marine Mercury Engine Parts Finder to narrow the available parts by engine and part type. Because components can vary by production range and configuration, do not rely on horsepower alone when confirming fitment.

      How do I use a Mercury engine breakdown or boat schematic?

      Select your Mercury outboard model, then choose the system or assembly you need to repair. The engine breakdown will display an exploded diagram with numbered components. Match the diagram reference number to the accompanying parts list to locate the current OEM or aftermarket replacement part.

      Why do I need my Mercury outboard model and serial number?

      The model and serial number help identify the outboard’s production range and exact configuration. Mercury may use different components within the same horsepower or engine family, so this information can help distinguish between parts that appear similar but fit different applications.

      What is the difference between OEM and aftermarket Mercury parts?

      OEM parts are manufactured or approved for the original Mercury application. Aftermarket parts are produced by another manufacturer as replacement options and may provide different pricing, availability, or material choices. The best option depends on the repair, application, and listed fitment requirements.

      What does it mean when a Mercury part number has been superseded?

      A superseded part number means the original Mercury number has been replaced by a newer orderable number. The replacement may include a design, material, packaging, or manufacturing update. Always verify that the newer number is listed as the correct replacement for your outboard application.

      How much oil does my Mercury outboard need?

      The correct oil capacity depends on the Mercury outboard model, horsepower, and engine configuration. Check your owner’s or service manual before completing an oil change, or use our Mercury Marine oil capacity guide to review capacities for popular models.

      Can Wholesale Marine help me identify a Mercury outboard part?

      Yes. Our marine parts specialists can help review your model number, serial number, horsepower, existing part number, and available parts information. We can also help you navigate available engine breakdowns and boat schematics. Call 877-388-2628 Monday through Friday from 8:30 AM to 4:30 PM with as much engine information as possible.