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Aftermarket Parts

Aftermarket Parts

  • Martyr Anodes Rud Anode Cmr2 2-13/16 Cmr02Al
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    Martyr Anodes Rud Anode Cmr2 2-13/16 Cmr02Al

    Martyr Anodes

    $13.69 $8.91
    Martyr Anodes Rud Anode Cmr2 2-13/16 Cmr02Al Zinc: For use in salt waterAluminum: For use in brackish waterMagnesium: For use in fresh water
    Part Number:
    194-CMR02AL
    Availability:
    In Stock - Ships same or next business day.
    Size:
    2-13/16" dia. x 1/2"
    Material:
    Aluminum
    $13.69 $8.91
    Add to Cart
  • Sierra Filter-Water Separator 21M Short 18-7844
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    Sierra Filter-Water Separator 21M Short 18-7844

    Sierra

    $16.49 $12.43
    Sierra Filter-Water Separator 21M Short 18-7844Sierra fuel water separators remove over 98.8% of emulsified water from your gasoline. Sierra's 10 micron filters are over 90% efficient at removing...
    Part Number:
    47-7844
    Availability:
    In Stock - Ships same or next business day.
    Type:
    Short - 3.875"
    Replaces:
    Mercury - 35-807172 - 35-802893Q
    $16.49 $12.43
    Add to Cart
  • Sierra Impeller Kit MerCruiser #47-8M0104229 18-3016-1
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    Sierra Impeller Kit MerCruiser #47-8M0104229 18-3016-1

    Sierra

    $44.09 $28.66
    Sierra Impeller Kit MerCruiser #47-8M0104229 18-3016-1Please note the gasket may appear differently than the OEM part, but it will work the same for the same applications. 
    Part Number:
    47-30161
    Availability:
    In Stock - Ships same or next business day.
    Fits:
    Late-model Bravo & High Performance
    Replaces:
    47-862232A2
    $44.09 $28.66
    Add to Cart
  • GROCO 1/2" NPT 90° Bronze Fuel Valve FV-590
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    GROCO 1/2" NPT 90° Bronze Fuel Valve FV-590

    Groco

    $35.00 $24.84
    1/2" NPT 90° Bronze Fuel Valve Features: Compact design 90° flow path 1/2" NPT male and female ports Use FV-590 (Brass) for fiberglass tanks Use FV-590-S (316SS) with aluminum or stainless...
    Part Number:
    34-FV590
    Availability:
    In Stock - Ships same or next business day.
    Description:
    Brass
    Size:
    1/2"-14 NPT
    A:
    2.75"
    B:
    2.50"
    C:
    1.26"
    $35.00 $24.84
    Add to Cart
  • NGK Spark Plugs Br8Es Solid Spark Plug 3961
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    NGK Spark Plugs Br8Es Solid Spark Plug 3961

    NGK Spark Plugs

    $6.58 $4.49
    NGK Spark Plugs Br8Es Solid Spark Plug 3961 Chosen by more automotive, and marine engine manufacturers than any other. The unique copper core and exclusive electrode design assure fast starts, peak...
    Part Number:
    41-3961
    Availability:
    In Stock - Ships same or next business day.
    Model #:
    BR8ES Solid
    Pkg.:
    Boxed
    What's in the Box:
    (1) Spark Plug
    $6.58 $4.49
    Add to Cart
  • Attwood Marine Kit Motor Steering 11663-7
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    Attwood Marine Kit Motor Steering 11663-7

    Attwood Marine

    $34.69 $22.95
    Attwood Marine Kit Motor Steering 11663-7   Link your kicker motor to your main steering system with ease Works with all dual or single cable steering systems & on popular hydraulic systems
    Part Number:
    23-116637
    Availability:
    In Stock - Ships same or next business day.
    $34.69 $22.95
    Add to Cart
  • CRC 6-56 Multi-Purpose Lubricant 11oz 6007
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    CRC 6-56 Multi-Purpose Lubricant 11oz 6007

    CRC

    $18.79 $13.99
    CRC CRC 6-56 Multi-Purpose Lubricant 11oz 6007 Drives out moisture to help start wet engines. Lubricates and protects against saltwater corrosion. Loosens rusted parts.
    Part Number:
    77-06007
    Availability:
    In Stock - Ships same or next business day.
    Size:
    11 oz.
    $18.79 $13.99
    Add to Cart
  • Seastar Bleed Nipple @2 Hf5548
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    Seastar Bleed Nipple @2 Hf5548

    Seastar

    $49.09 $28.99
    Seastar Bleed Nipple @2 Hf5548 All Older Style SeaStar manual hydraulic steering systems. These are 3/8" compression fittings which utilize a 9/16"-24 extra fine thread. (Seastar Solutions New...
    Part Number:
    1-HF5548
    Availability:
    In Stock - Ships same or next business day.
    Type:
    Bleed Nipple - Includes O-ring.
    For use with Front Mount Cylinder ONLY.
    Material:
    Aluminum
    Bag:
    2
    $49.09 $28.99
    Add to Cart
  • Seachoice Motorwell Boot-Vinyl Plas-4 29251
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    Seachoice Motorwell Boot-Vinyl Plas-4 29251

    Seachoice

    $12.27 $10.73
    Seachoice Motorwell Boot-Vinyl Plas-4 29251 Seals off water intake and protects cables, wiring and gas linesMade of durable vinyl plastisol.
    Part Number:
    50-29251
    Availability:
    In Stock - Ships same or next business day.
    Size:
    4"
    $12.27 $10.73
    Add to Cart
  • Seastar Steering Cable Safe-T QC SSC62
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    Seastar Steering Cable Safe-T QC SSC62

    Seastar

    $173.19 $149.46
    Seastar Steering Cable Safe-T QC SSC62 This standard quick connect rotary cable fits SH50941P, SH4910P, SH91190P, SH91526P, SH91527P, and SH915231P helms. These rotary cables exceed ABYC safety...
    Part Number:
    NW-1SSC62
    Availability:
    In Stock - Ships same or next business day.
    $173.19 $149.46
    Choose Options
  • Martyr Anodes 2 1/2 Zinc Shaft Anode Cmx11
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    Martyr Anodes 2 1/2 Zinc Shaft Anode Cmx11

    Martyr Anodes

    $88.89 $39.99
    Martyr Anodes 2 1/2 Zinc Shaft Anode Cmx11 Aluminum for salt and brackish waterMagnesium for fresh waterZinc for salt water
    Part Number:
    194-CMX11
    Availability:
    In Stock - Ships same or next business day.
    ID:
    2-1/2"
    OD:
    4-1/4"
    Length:
    3-3/4"
    Material:
    Zinc
    $88.89 $39.99
    Add to Cart
  • Sierra Shift Cable 18-2190
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    Sierra Shift Cable 18-2190

    Sierra

    $115.49 $80.41
    Sierra Shift Cable 18-2190  • Sierra 18-2190 Alpha Shift Cable Assembly • Fits MerCruiser #1 drives s/n #6225577 & up • For Aft installation into bell housing
    Part Number:
    47-2190
    Availability:
    In Stock - Ships same or next business day.
    Fits:
    Mercruiser 1 drives
    Replaces:
    19543A4 - A10
    $115.49 $80.41
    Add to Cart
  • Racor Filter-Water Separator Gas 10M Pff5510
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    Racor Filter-Water Separator Gas 10M Pff5510

    Racor

    $17.69 $13.99
    Racor Filter-Water Separator Gas 10M Pff5510 The PFF5510 gasoline fuel filter/water separator replaces standard fuel filters. It fits these popular engine applications with it's 11/16"-16 center...
    Part Number:
    62-PFF5510
    Availability:
    In Stock - Ships same or next business day.
    Micron:
    10
    Application:
    Mercury - Mercruiser - Yamaha - Suzuki - Honda and Tohatsu
    Size:
    3.6" dia. x 4.2"H
    $17.69 $13.99
    Add to Cart
  • Martyr Anodes Rud Anode Cmr3 3-3/4 Cmr03M
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    Martyr Anodes Rud Anode Cmr3 3-3/4 Cmr03M

    Martyr Anodes

    $32.29 $21.19
    Martyr Anodes Rud Anode Cmr3 3-3/4 Cmr03M Zinc: For use in salt waterAluminum: For use in brackish waterMagnesium: For use in fresh water
    Part Number:
    194-CMR03M
    Availability:
    In Stock - Ships same or next business day.
    Size:
    3-3/4" dia. x 1/2"
    Material:
    Magnesium
    $32.29 $21.19
    Add to Cart

Aftermarket Boat Parts & Marine Engine Supplies

Looking for dependable aftermarket boat parts? PowerBoatSupply.com carries a wide selection of aftermarket marine parts, engine supplies, oils, fuel components, steering parts, anodes, tools, and maintenance essentials for boat owners and marine professionals.

Whether you're handling routine service, replacing worn components, or stocking up for the season, our aftermarket parts selection helps keep your boat running smoothly and reliably.

Marine Engine Parts & Maintenance Essentials

Keep your motor protected and performing with key maintenance categories like engine parts, motor oil, marine oil systems and accessories, and lubricants, fluids and sealants.

  • Engine Parts – Replacement components for service and repair
  • Motor Oil – Marine-grade oils for routine maintenance
  • Oil Systems & Accessories – Helpful products for oil changes and upkeep
  • Lubricants, Fluids & Sealants – Protect, seal, and maintain marine systems

Fuel, Steering & Control Parts

Reliable fuel delivery and responsive steering are critical on the water. Browse marine fuel parts and steering and controls to help maintain safer handling, smoother operation, and dependable performance.

  • Fuel Parts – Components for reliable fuel system performance
  • Steering & Controls – Parts that help improve control and handling
  • Engine Instruments – Monitor key systems while underway
  • Engine Tools – Tools for maintenance, repair, and service work

Anodes, Instruments & Service Tools

Small parts can make a big difference in long-term protection and performance. Shop marine anodes, engine instruments, and engine tools to help protect your boat, monitor performance, and complete service work more efficiently.

  • Anodes – Help protect metal components from corrosion
  • Engine Instruments – Gauges and monitoring products for marine engines
  • Engine Tools – Service tools for DIY boaters and marine technicians
  • Maintenance Supplies – Everyday essentials for seasonal upkeep

Yamaha Oil Change Kits & Routine Service Products

Staying ahead of routine service is one of the best ways to protect your investment. PowerBoatSupply.com also carries Yamaha oil change kits and other service products that make maintenance easier and more convenient.

  • Oil Change Kits – Convenient service kits for scheduled maintenance
  • Marine Oils – Protect engines under real boating conditions
  • Sealants & Fluids – Support repairs, installs, and regular service
  • Tools & Accessories – Make maintenance faster and cleaner

Why Buy Aftermarket Marine Parts from PowerBoatSupply.com?

PowerBoatSupply.com helps boat owners find reliable parts and maintenance products without the guesswork. From routine oil service to engine repair, fuel system work, corrosion protection, and steering maintenance, our aftermarket category is built to support the jobs boaters handle every season.

  • Wide selection of aftermarket boat parts and marine supplies
  • Products for DIY boat owners and marine professionals
  • Helpful categories for seasonal service and repairs
  • Fast shipping and dependable support

Shop aftermarket boat parts today and get the engine parts, oils, fuel components, steering supplies, anodes, tools, and maintenance products you need to keep your boat ready for the water.