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Aftermarket Parts

Aftermarket Parts

  • Seastar Side Mount Control Sailboat Ch2100P
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    Seastar Side Mount Control Sailboat Ch2100P

    Seastar

    $330.89 $224.77
    Seastar Side Mount Control Sailboat Ch2100P Features single lever/dual action design. Compact construction is perfect for sailboats and other applications where space is at a premium. Drop-in replacement for NW, Onan, TX, Vetus, Volvo and other controls.
    Part Number:
    1-CH2100P
    Availability:
    In Stock - Ships same or next business day.
    $330.89 $224.77
    Add to Cart
  • Sierra Filter Oil-GM/Chev V-6 18-7879-1
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    Sierra Filter Oil-GM/Chev V-6 18-7879-1

    Sierra

    $10.39 $7.68
    Sierra Filter Oil-GM/Chev V-6 18-7879-1Sierra high efficiency filters meet OEM specifications for marine use. Epoxy coated inside for corrosion resistance.
    Part Number:
    47-78791
    Availability:
    In Stock - Ships same or next business day.
    Application:
    V6 GM - Chevy
    $10.39 $7.68
    Add to Cart
  • Sierra Fuel Pump Kit 55-250 18-7788
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    Sierra Fuel Pump Kit 55-250 18-7788

    Sierra

    $19.89 $15.85
    Sierra Fuel Pump Kit 55-250 18-7788Contains Gasket (rear); diaphragm (rear); gasket (front/top) diaphragm (front/top).
    Part Number:
    47-7788
    Availability:
    In Stock - Ships same or next business day.
    Fits:
    V4-V6
    OEM #:
    6E5-24411-00-00
    $19.89 $15.85
    Add to Cart
  • Centek Elbow - 45 Degree 4" 1200112
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    Centek Elbow - 45 Degree 4" 1200112

    Centek

    $130.19 $101.45
    Centek Elbow - 45 Degree 4" 1200112 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:
    383-1200112
    Availability:
    In Stock - Ships same or next business day.
    OD:
    4"
    Length:
    10-1/4"
    $130.19 $101.45
    Add to Cart
  • Centek Muffler-Vernalift 2X2 Side/Top 1500026
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    Centek Muffler-Vernalift 2X2 Side/Top 1500026

    Centek

    $405.19 $296.78
    Centek Muffler-Vernalift 2X2 Side/Top 1500026 Extremely effective in reducing engine exhaust noise and preventing water from returning to the engine. High strength design provides a significant safety margin over other existing fiberglass lift mufflers...
    Part Number:
    383-1500026
    Availability:
    In Stock - Ships same or next business day.
    A1:
    2
    A2:
    2
    B:
    2.5
    D:
    8.36
    E:
    4.68
    F:
    2
    $405.19 $296.78
    Add to Cart
  • Centek Vernalift Muffler 1500107
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    Centek Vernalift Muffler 1500107

    Centek

    $446.29 $339.83
    Centek Vernalift Muffler 1500107 Extremely effective in reducing engine exhaust noise and preventing water from returning to the engine. High strength design provides a significant safety margin over other existing fiberglass lift mufflers. For...
    Part Number:
    383-1500107
    Availability:
    In Stock - Ships same or next business day.
    A1:
    2
    A2:
    2
    B:
    2
    D:
    10.04
    E:
    5.3
    F:
    2.5
    $446.29 $339.83
    Add to Cart
  • Martyr Anodes 1 1/4 Magnesium Shaft Anode Cmx05M
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    Martyr Anodes 1 1/4 Magnesium Shaft Anode Cmx05M

    Martyr Anodes

    $29.29 $19.02
    Martyr Anodes 1 1/4 Magnesium Shaft Anode Cmx05M Aluminum for salt and brackish waterMagnesium for fresh waterZinc for salt water
    Part Number:
    194-CMX05M
    Availability:
    In Stock - Ships same or next business day.
    ID:
    1-1/4"
    OD:
    2-1/2"
    Length:
    2-1/2"
    Material:
    Magnesium
    $29.29 $19.02
    Add to Cart
  • Martyr Anodes Anode Hull Aluminum Zhc2 Cmzhc2A
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    Martyr Anodes Anode Hull Aluminum Zhc2 Cmzhc2A

    Martyr Anodes

    $19.99 $14.86
    Martyr Anodes Anode Hull Aluminum Zhc2 Cmzhc2A Zinc: For use in salt waterAluminum: For use in brackish waterMagnesium: For use in fresh water
    Part Number:
    194-CMZHC2AA
    Availability:
    In Stock - Ships same or next business day.
    Size:
    5-3/4" L X 2-1/2" W x 3/4" H
    Hole:
    2-7/8"
    Material:
    Aluminum
    $19.99 $14.86
    Add to Cart
  • Martyr Anodes Rud Anode Cmr1 1-7/8 Cmr01M
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    Martyr Anodes Rud Anode Cmr1 1-7/8 Cmr01M

    Martyr Anodes

    $12.99 $7.03
    Martyr Anodes Rud Anode Cmr1 1-7/8 Cmr01M Zinc: For use in salt waterAluminum: For use in brackish waterMagnesium: For use in fresh water
    Part Number:
    194-CMR01M
    Availability:
    In Stock - Ships same or next business day.
    Size:
    1-7/8" dia. x 1/4"
    Material:
    Magnesium
    $12.99 $7.03
    Add to Cart
  • NGK Spark Plugs B8Hs-10 Spark Plug 5126
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    NGK Spark Plugs B8Hs-10 Spark Plug 5126

    NGK Spark Plugs

    $6.59 $4.49
    NGK Spark Plugs B8Hs-10 Spark Plug 5126 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-B8HS10
    Availability:
    In Stock - Ships same or next business day.
    Model #:
    5126
    Pkg.:
    Boxed
    What's in the Box:
    4
    $6.59 $4.49
    Add to Cart
  • Seachoice Male Hose Barb-3/8 x 3/8 Npt 20791
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    Seachoice Male Hose Barb-3/8 x 3/8 Npt 20791

    Seachoice

    $9.04 $5.86
    Seachoice Male Hose Barb-3/8 x 3/8 Npt 20791 NOT TO BE USED IN POTABLE WATER SYSTEMS. • All brass machined fittingsIdeal for fuel fitting applications.
    Part Number:
    50-20791
    Availability:
    In Stock - Ships same or next business day.
    Thread:
    3/8" NPT
    Hose:
    3/8"
    $9.04 $5.86
    Add to Cart
  • Seastar Back Mount Steering Rack No Feedback Single Package SS151
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    Seastar Back Mount Steering Rack No Feedback Single Package SS151

    Seastar

    $439.69 $327.38
    Seastar Back Mount Steering Rack No Feedback Single Package SS151 No FeedBack technology and incredible precision of a rack and pinion system, and engineered-in serious advances in steering comfort and control. A drop-in replacement for "The Rack"...
    Part Number:
    NW-1SS151K
    Availability:
    In Stock - Ships same or next business day.
    $439.69 $327.38
    Choose Options
  • Sierra 09-812B Impeller 18-3306
    Add to Cart

    Sierra 09-812B Impeller 18-3306

    Sierra

    $82.29 $43.60
    Sierra 09-812B Impeller 18-330612 fin Neoprene - spline
    Part Number:
    47-3306
    Availability:
    In Stock - Ships same or next business day.
    Replaces:
    09-812B
    Depth:
    1-15/16"
    Dia.:
    2-1/4"
    Shaft:
    3/4" Dia.
    $82.29 $43.60
    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.