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      Yamaha Outboard Parts Product Listings

      • Sierra 18-3373 Water Pump Kit
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        $107.99
        $89.59

        Sierra 18-3373 Yamaha Water Pump Kit with Housing Replacement Water Pump Kit for Yamaha Outboards. Includes housing. Interchangeable with: Yamaha Outboard 6E5-W0078-A1-00 6E5-W0078-00-00 6E5-W0078-01-00 Contains: (1) 18-0244 Water Pump...

      • Sierra 18-3311 Water Pump Kit
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        $112.39
        $80.89

        Sierra 18-3311 Yamaha Water Pump Kit with Housing & Cup Sierra high-quality engine parts are designed to meet OEM specifications. Interchangeable with: Mallory 9-48614 Yamaha...

      • Sierra 18-3310 Water Pump Kit Replaces 6G5-w0078-A1-00
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        $95.59
        $68.79

        Sierra 18-3310 Yamaha Water Pump Kit Sierra high-quality engine parts are designed to meet OEM specifications. Does not include housing. Kit Contains: (1) 18-0244 Water Pump Gasket (4) 18-0256 Bolt (1) 18-3071 Impeller (1) 18-3302 Impeller...

      • Sierra 18-3726 Prop Nut
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        $10.49
        $8.89

        Sierra 18-3726 Prop Nut Sierra replacement prop nut for Suzuki and Yamaha Outboards. Interchangeable with: GLM 21241 Mallory 9-73909 Suzuki Outboard 09141-18005 Yamaha Outboard 90171-18M04-00  

      • Sierra 18-3433 Water Pump Kit
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        $31.49
        $24.59

        Sierra 18-3433 Water Pump Kit Sierra replacement water pump kit for Yamaha Outboards. Kit Contains: (1) 18-3040 Impeller (1) 18-3444 Insert Cup (1) 18-3195 Impeller Plate (4) 18-0256 Bolt (1) 189-3294 Impeller Key Interchangeable...

      • Sierra 18-3429 Water Pump Kit
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        $55.19
        $39.69

        Sierra 18-3429 Water Pump Kit Sierra replacement water pump kit for Yamaha Outboards. Kit Contains: (2) 18-0256 Bolt (1) 18-0292 Wear Plate to Pump Housing Gasket (1) 18-0294 Wear Plate to Pump Base Gasket (1) 18-3068 Impeller (1) 18-3435 Insert...

      • CLEARANCE
        Sierra 18-3832 Head Gasket
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        $35.49
        $23.79

        Sierra 18-3832 Head Gasket Sierra high-quality replacement head gasket for Yamaha Outboards. Interchangeable with: GLM 34960 Mallory 9-63959 Yamaha...

      • Sierra 18-3831 Head Gasket
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        $52.59
        $40.99

        Head Gasket - Special Order est. 10 Days

      • Sierra 18-3074 Impeller
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        $32.29
        $23.29

        Sierra 18-3074 Impeller Interchangeable with: GLM 89880 Mallory 9-45605 Mercury Marine 47-84027M 47-84027T 47-96619M Yamaha Outboard 682-44352-01-00 682-44352-03-00 682-44352-00-00 682-44352-40-00

      • CLEARANCE
        Sierra 18-3891 Head Gasket
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        $85.99
        $61.89

        Head Gasket - Special Order est. 10 Days

      • Sierra 18-3073 Impeller Replaces 47-96305M
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        $23.29
        $16.79

        Sierra 18-3073 Impeller Sierra replacement impeller for Mercury Marine, and Yamaha Outboards. Use with: 18-48619 Water Pump Kit, Complete Interchangeable with: GLM 89860 Mallory 9-45611 Mercury Marine 47-96305M Yamaha...

      • Sierra 18-3070 Impeller Replaces 688-44352-03-00
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        $34.19
        $24.59

        Sierra 18-3070 Impeller Replaces 688-44352-03-00 Sierra replacement impeller for Yamaha Outboard engines. All Sierra marine parts are manufactured to meet or exceed all OEM requirements. Interchangeable...

      • Sierra 18-3069 Water Pump Impeller Replaces 47-81423M
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        $39.69
        $28.59

        Sierra 18-3069 Water Pump Impeller for Mercury, Yamaha Outboards Sierra high-quality replacement engine parts are designed to meet OEM specifications. Interchangeable with: GLM 89910 Mallory 9-45602 9-45602-10 Mercury...

      • Sierra 18-3068 Water Pump Impeller Replaces 6H4-44352-02-00
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        $32.79
        $25.59

        Sierra 18-3068 Yamaha Water Pump Impeller Sierra replacement water pump impeller for Yamaha Outboards. For Use On Engine Models: 30,40,50HP Use with: 18-3413 Water Pump Kit w/ Housing 18-3440 Water Pump Kit 18-3432 Water Pump Kit 18-3430...

      • Sierra 18-3067 Water Pump Impeller Replaces 47-84797M
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        $33.89
        $24.39

        Water Pump Impeller for Mercury, Yamaha For Use On Engine Model 25HP Replaces: Mercury - 47-84797M Yamaha - 689-44352-02-00 Mallory - 9-45600 GLM - 89890 Pro Marine - 18-3067 Redline - RL3067  

      • Sierra 18-0767 Water Jacket Cover Gasket
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        $25.39
        $18.29

        Water Jacket Cover Gasket - Special Order est. 10 Days

      • Moeller Mercury Engine Fuel Line Connector 3/8"
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        $12.59
        $10.79

        Moeller Marine Clip Engine Connector for Mercury Engines Attaches to fuel hose on the engine side. 3/8" Barb Female Clip Style For use with Moeller tank fitting part  #moe-033477-10 For use on Mercury Engines 1998 and Newer.  1997 & Older...

      Yamaha OEM Engine Parts Finder

      Shop Yamaha Outboard Parts

      Wholesale Marine stocks thousands of OEM and aftermarket marine engine parts, including Yamaha 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 Yamaha parts and trusted aftermarket alternatives.

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

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

      Find the Right Parts for Your Yamaha Outboard

      Yamaha 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 Yamaha 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 Yamaha outboard.

      When confirming fitment, have the following information available:

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

      Use Yamaha Engine Breakdowns and Boat Schematics

      A Yamaha 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 Yamaha boat schematics organize components by engine model and assembly, making it easier to locate parts for cooling, fuel, ignition, electrical, powerhead, lower unit, control, and trim systems. Select the correct Yamaha 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 Yamaha Outboard Parts

      Wholesale Marine offers both genuine OEM Yamaha components and aftermarket replacement parts. OEM parts are manufactured or approved for the original Yamaha 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 Yamaha part number has been discontinued or superseded, the current replacement may use a different part number while serving the same application.

      Common Yamaha Maintenance and Repair Parts

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

      Common Yamaha 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 Yamaha four-stroke outboards.
      • Propellers and propeller hardware: Transfer engine power to the water and help determine acceleration, engine speed, and overall boat performance.
      • Trim-system parts: Include trim motors, relays, seals, and related components used to adjust the outboard’s running angle.

      Maintain Yamaha Two-Stroke and Four-Stroke Outboards

      Yamaha 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, and corrosion-protection components should also be checked periodically for wear or damage.

      Refer to your Yamaha owner’s or service manual for the correct maintenance intervals, fluids, capacities, replacement procedures, and torque specifications for your engine.

      Get Help Identifying Yamaha 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 Yamaha 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 Yamaha outboard serial number, model, and year.

      Yamaha Outboard Parts FAQs

      Does Wholesale Marine carry OEM and aftermarket Yamaha outboard parts?

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

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

      Start with your engine model number, serial number, and horsepower, then use the Wholesale Marine Yamaha 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 Yamaha engine breakdown or boat schematic?

      Select your Yamaha 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 Yamaha outboard model and serial number?

      The model and serial number help identify the outboard’s production range and exact configuration. Yamaha 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 Yamaha parts?

      OEM parts are manufactured or approved for the original Yamaha 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 Yamaha part number has been superseded?

      A superseded part number means the original Yamaha 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.

      Can Wholesale Marine help me identify a Yamaha 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.