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      Mercury Outboard Parts Product Listings

      • Sierra 18-3116 Water Pump Housing Replaces 46-96148T1
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        $53.09
        $38.19

        Sierra 18-3116 Water Pump Housing for Mercury, Mercruiser Sierra high-quality replacement engine parts are designed to meet OEM specifications.  For use with 18-3109 Water Tube Guide and 18-3110 Water Pump Housing Brushing Interchangeable...

      • Sierra 18-3007 Water Pump Impeller Replaces 47-89983T
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        $23.99
        $17.29

        Sierra 18-3007 Water Pump Impeller Sierra high-quality engine parts are designed to meet OEM specifications. Fits various 30-70 HP outboards. Interchangeable with: GLM 89830 Mallory 9-45300 Mercruiser Stern Drive 47-20268 Mercury...

      • Sierra 18-3553 Thermostat Replaces 75692
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        $27.59
        $21.49

        Sierra 18-3553 Mercury Thermostat The Sierra 18-3553 Thermostat has a 143°F temperature rating. For use on Mercury Marine engines. Interchangeable with: GLM 13010 Mallory 9-43019 Mercury...

      • SALE
        Sierra 18-3217 Impeller Kit Replaces 46-96148A8
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        $39.29
        $28.29
        $21.99

        Sierra 18-3217 Water Pump Repair Kit for MerCruiser, Mercury For #1 Units thru S/N D494568 (Similar to #46-96148A5 without base or housing) Used on MerCruiser Stern Drives and Mercury Outboards. This kit contains all the components needed to properly...

      • Sierra 18-3675 Thermostat Cover Gasket
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        $4.09
        $3.59

        Sierra 18-3675 Thermostat Cover Gasket Sierra replacement thermostat cover gasket for Mercury Marine engines. For: 200-250 Hp 3.0L, (DFI and EFI) Interchangeable with: Mercury Marine 27-850318 27-8503181 Mercury Sport...

      • Sierra 18-5225 Spark Plug Wire Kit Replaces 84-813706A26
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        $62.89
        $59.19

        Sierra 18-5225 Universal Spark Plug Wire Kit Sierra Spark Plug Wires are the highest quality marine wire sets available anywhere in the world. Spark Plug wires are constructed of Hypalon with a metallic core. Kit includes spark plug wire and 3 different...

      • Sierra 18-5226 Johnson/Evinrude 7mm Ignition Wire - Per Foot
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        $2.69
        $2.29

        Sierra 18-5226 Hypalon Ignition Wire - Sold by the Foot Sierra high-quality hypalon ignition wire. Sold by the foot. Material: Metallic Core Wire: 7mm Hypalon Interchangeable with: Johnson/Evinrude Outboard 772584 510883

      • Sierra 18-5929 Alternator
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        $546.69
        $393.59

        Sierra 18-5929 Mercury Alternator Sierra replacement engine parts are designed to meet or exceed OEM requirements. This 18-5929 Mercury Alternator fits all Mercury Verado engines. Interchangeable with: Arco 20860 Mallory 9-19202 Mercury...

      • Sierra 18-7007 Carburetor Kit Replaces 1399-5135
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        $14.29
        $11.09

        Sierra 18-7007 Carburetor Kit for Mercury Marine Engines Sierra 18-7007 is a replacement carburetor kit for use with Mercury Marine engines. Sierra aftermarket engine parts are manufactured to meet or exceed OEM requirements. Includes: Gasket,...

      • Sierra 18-6273-1 Mercury 35-220HP Tilt/Trim Motor
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        $897.09
        $645.89

        Sierra 18-6273-1 Mercury Tilt/Trim Motor For Mercury and Mariner Outboard Engines. High performance cartridge pump with replaceable motor. Three ram integral power trim Fits Mercury/Mariner 70/75/80/90 hp. (3 cyl.) 2 cycle outboards, 1987 through...

      • Sierra 18-7951 Fuel Water Separator Kit
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        $173.19
        $124.69

        Sierra 18-7951 10 Micron Aluminum Fuel Water Separator Kit - 1/4" Thread w/metal drain bowl - Special Order est. 10 Days 10 MICRON FILTER KITS WITH DRAIN BOWLS Sierra AquaVue and metal bowl separator filters allow water to be drained from the filter to...

      • Sierra 18-7211-1 Mercury Carburetor Kit
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        $12.79
        $9.99

        Sierra 18-7211-1 Mercury Carburetor Kit Sierra aftermarket engine parts are manufactured to meet or exceed OEM requirements. Kit Includes: Gasket NSS Carburetor to Manifold Gasket 18-0324 Interchangeable...

      • Sierra 18-7214 Carburetor Kit Replaces 810749
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        $26.59
        $19.09

        Sierra 18-7214 Carburetor Kit Sierra replacement carburetor kit for Mercury engines. Sierra carburetor kits utilize superior corrosion-resistant materials and unmatched quality testing. Includes (1) 18-0641 Carburetor Mounting...

      • Sierra 18-7774 Bracket Filter
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        $46.39
        $33.39

        COMPACT ALUMINUM BRACKET - Special Order est. 10 Days FOR SMALL OUTBOARDS AND FRESH WATER APPLICATIONS

      • Sierra 18-7215 Carburetor Kit Replaces 1395-9024
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        $15.79
        $13.39

        Sierra 18-7215 Mercury Carburetor Kit Sierra high-quality carburetor kits are designed to get you back on the water faster. Sierra carburetor kits utilize superior ethanol resistant materials with unsurpassed quality control. Interchangeable...

      • Sierra 18-7956-9 O-Ring (Priced Per Pkg Of 5)
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        $23.29
        $18.09

        Sierra 18-7956-9 O-Ring (Priced Per Pkg Of 5) Sierra replacement O-ring. I.D.: 2.480" or 63mm Width: 0.197" or 5mm Package of 5 Interchangeable with: Chrysler/Force/US...

      • Sierra 18-8382 Lower Unit Seal Kit
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        $46.89
        $33.79

        Sierra 18-8382 Mercury Lower Unit Seal Kit Sierra replacement lower unit seal kit for Mercury Outboards. For: 225Hp EFI/250Hp EFI (G129222 & Up), 200Hp (T801000 & Up), 200Hp Optimax DFI (G386496 & Up) For: 225Hp Optimax DFI...

      • Sierra 18-7776-1 Fuel Water Separator Kit
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        $126.89
        $91.39

        Sierra 18-7776-1 21 Micron Stainless Steel Fuel Water Separator Kit - 3/8" Thread Tall Filter Sierra fuel water separators remove over 99.8% of emulsified water from your gasoline. This filter prevents damage to sensitive inboard, sterndrive, and...

      • Sierra 18-7848-1 Fuel Water Separator Kit
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        $61.39
        $44.19

        Sierra 18-7848-1 21-Micron Aluminum Fuel Water Separator Kit 1/4" Thread Short Filter Sierra fuel water separators remove over 99.8% of emulsified water from your gasoline All filters flow at 90 GPH to feed even the hungriest motor Prevent...

      • Sierra 18-7044-1 Service Valve Kit
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        $21.89
        $15.79

        Sierra 18-7044-1 Service Valve Kit for Johnson & Evinrude Engines Fits all Johnson/Evinrude outboards with primer valve (except 1993 9.9 & 15 horsepower). Kit Includes: (1) 18-0871 Service Valve w/ O-Ring Replaces Johnson/Evinrude...

      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.