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Aftermarket Parts

Aftermarket Parts

  • Martyr Anodes Grouper Magnesium Cmgrouperm
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    Martyr Anodes Grouper Magnesium Cmgrouperm

    Martyr Anodes

    $123.39 $71.72
    Martyr Anodes Grouper Magnesium Cmgrouperm 15' of cableDo Not connect to batteryZinc for saltwaterMagnesium for use in fresh waterAluminum for salt and brackish water
    Part Number:
    194-CMGROUPERM
    Availability:
    In Stock - Ships same or next business day.
    Size:
    8-1/4" x 3-1/4" x 1-3/8"
    Material:
    Magnesium
    $123.39 $71.72
    Add to Cart
  • NGK Spark Plugs 4495 Spark Plug 4495
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    NGK Spark Plugs 4495 Spark Plug 4495

    NGK Spark Plugs

    $20.09 $10.81
    NGK Spark Plugs 4495 Spark Plug 4495 Chosen by more automotive, and marine engine manufacturers than any other. The unique copper core and exclusive electrode design assure fast starts, peak performance and long life. • Triple gasket sealing...
    Part Number:
    41-BPZ8HN10
    Availability:
    In Stock - Ships same or next business day.
    Model #:
    4495
    Pkg.:
    Boxed
    $20.09 $10.81
    Add to Cart
  • Seastar Bleed Nipple Caps @12 Hp6044
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    Seastar Bleed Nipple Caps @12 Hp6044

    Seastar

    $39.59 $31.02
    Seastar Bleed Nipple Caps @12 Hp6044
    Part Number:
    1-HP6044
    Availability:
    In Stock - Ships same or next business day.
    Type:
    Bleed Nipple Soft cap
    Description:
    Bleed nipple caps for all Seastar Cylinders
    Bag:
    12
    $39.59 $31.02
    Add to Cart
  • Centek Elbow - 90 Degree 3" 1200171
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    Centek Elbow - 90 Degree 3" 1200171

    Centek

    $141.39 $104.53
    Centek Elbow - 90 Degree 3" 1200171 These fittings are made of the same fiberglass and fire retardant resins used to make Vernatube. Fittings, couplings and elbows are lightweight, strong, non-corroding and durable.
    Part Number:
    383-1200171
    Availability:
    In Stock - Ships same or next business day.
    OD:
    3"
    Length:
    7-1/2"
    $141.39 $104.53
    Add to Cart
  • Martyr Anodes Rudder Anode Set 1 7/8" Dia. Cmr01S
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    Martyr Anodes Rudder Anode Set 1 7/8" Dia. Cmr01S

    Martyr Anodes

    $7.69 $4.47
    Martyr Anodes Rudder Anode Set 1 7/8" Dia. Cmr01S Streamlined rudder anodes include combination fasteners.Slotted hardware. Zinc for salt water.
    Part Number:
    194-CMR01S
    Availability:
    In Stock - Ships same or next business day.
    Size:
    1-7/8" dia.
    Material:
    Zinc
    $7.69 $4.47
    Add to Cart
  • NGK Spark Plugs Br9Es Spark Plug 5722
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    NGK Spark Plugs Br9Es Spark Plug 5722

    NGK Spark Plugs

    $6.62 $4.10
    NGK Spark Plugs Br9Es Spark Plug 5722 Chosen by more automotive, and marine engine manufacturers than any other. The unique copper core and exclusive electrode design assure fast starts, peak performance and long life. •?Triple gasket sealing...
    Part Number:
    41-5722
    Availability:
    In Stock - Ships same or next business day.
    Model #:
    BR9ES
    $6.62 $4.10
    Add to Cart
  • Seachoice Anti-Syphon Valve 1/4Nptx3/8 20991
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    Seachoice Anti-Syphon Valve 1/4Nptx3/8 20991

    Seachoice

    $14.85 $12.99
    Seachoice Anti-Syphon Valve 1/4Nptx3/8 20991 Coast Guard industry standards require anti-siphon protection on all gasoline powered boatsThis valve combines anti-syphon protection with a convenient hose barb designMade of corrosion resistant aluminum.
    Part Number:
    50-20991
    Availability:
    In Stock - Ships same or next business day.
    Thread:
    1/4" NPT
    Hose:
    3/8" ID
    $14.85 $12.99
    Add to Cart
  • Sierra C-Gimbal Bearng 30-879194A01 18-21006
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    Sierra C-Gimbal Bearng 30-879194A01 18-21006

    Sierra

    $166.59 $96.05
    Sierra C-Gimbal Bearng 30-879194A01 18-21006Refer to the Sierra catalog for complete application information.
    Part Number:
    47-21006
    Availability:
    In Stock - Ships same or next business day.
    Fits:
    Mercruiser Stern Drives
    Replaces:
    30-879194A01
    $166.59 $96.05
    Add to Cart
  • Uflex C2 Control Cable 33C
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    Uflex C2 Control Cable 33C

    Uflex

    $38.29 $35.04
    Uflex C2 Control Cable 33C Universal 33C style control cable with brass and stainless steel 10/32 threaded end fittings. Featuring an 18 laywire conduit for enhanced efficiency, durability and longevity the C2 cables have brass end fittings. They are...
    Part Number:
    NW-216C233C
    Availability:
    In Stock - Ships same or next business day.
    $38.29 $35.04
    Choose Options

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.