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Aftermarket Parts

Aftermarket Parts

  • Seachoice Alpha One 84-90 Kit - Aluminum 50-95001
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    Seachoice Alpha One 84-90 Kit - Aluminum 50-95001

    Seachoice

    $57.67 $47.92
    Seachoice Alpha One 84-90 Kit - Aluminum 50-95001 Cadmium free, environmentally friendly. • Aluminum: For salt and brackish waterConform to: Mil-Spec A-24779(SH)
    Part Number:
    50-95001
    Availability:
    In Stock - Ships same or next business day.
    Fits:
    1984-1990
    Material:
    Aluminum
    $57.67 $47.92
    Add to Cart
  • Seachoice Black Knob (For 2840 & 2839) 28421
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    Seachoice Black Knob (For 2840 & 2839) 28421

    Seachoice

    $10.71 $9.53
    Seachoice Black Knob (For 2840 & 2839) 28421 Made of chrome plated brassEach separate lever controls clutch and throttle for one engineNot for dual station applicationsFunctions
    Part Number:
    50-28421
    Availability:
    In Stock - Ships same or next business day.
    Description:
    Black Knob
    $10.71 $9.53
    Add to Cart
  • Seachoice Econo Fuel Conn-Male Yam 3/8 20641
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    Seachoice Econo Fuel Conn-Male Yam 3/8 20641

    Seachoice

    $11.84 $10.99
    Seachoice Econo Fuel Conn-Male Yam 3/8 20641 Precision engineered fuel connectors
    Part Number:
    50-20641
    Availability:
    In Stock - Ships same or next business day.
    Connector:
    Tank Fitting - Male
    Fits:
    Yamaha/Mercury/Mariner
    Material:
    Brass
    Thread:
    1/4" NPT
    Hose:
    -
    $11.84 $10.99
    Add to Cart
  • Seachoice Fuel Pump Cube Kit 11.5-9.0Psi 12V 20321
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    Seachoice Fuel Pump Cube Kit 11.5-9.0Psi 12V 20321

    Seachoice

    $168.25 $100.87
    Seachoice Fuel Pump Cube Kit 11.5-9.0Psi 12V 20321 Compatible with gasoline, diesel, biodiesel, blended alcohol fuels and fuel additives • For 12 volt systems onlyNot intended for aircraft use.Easy...
    Part Number:
    50-20321
    Availability:
    In Stock - Ships same or next business day.
    PSI:
    11.5-9.0
    GPH:
    32
    OEM #:
    40185
    Volts:
    12
    $168.25 $100.87
    Add to Cart
  • Seachoice Honda Bf - Magnesium 50-95421
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    Seachoice Honda Bf - Magnesium 50-95421

    Seachoice

    $70.71 $57.67
    Seachoice Honda Bf - Magnesium 50-95421 Cadmium free, environmentally friendly. • Aluminum: For salt and brackish water • Conform to: Mil-Spec A-24779(SH)
    Part Number:
    50-95421
    Availability:
    In Stock - Ships same or next business day.
    Material:
    Magnesium
    $70.71 $57.67
    Add to Cart
  • Seastar Bulk Head Hose Kits 22' 2/Bx Ho8122
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    Seastar Bulk Head Hose Kits 22' 2/Bx Ho8122

    Seastar

    $403.39 $299.99
    Seastar Bulk Head Hose Kits 22' 2/Bx Ho8122 SeaStar® Bulkhead Hose Kits assure a neat hydraulic steering installation. Each hose has an integral bulkhead fitting for tidy routing of hoses through a...
    Part Number:
    1-HO8122
    Availability:
    In Stock - Ships same or next business day.
    Length:
    22'
    Box:
    2
    $403.39 $299.99
    Add to Cart
  • Seastar Control Ski/Jet Side Ch2200P
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    Seastar Control Ski/Jet Side Ch2200P

    Seastar

    $612.59 $503.03
    Seastar Control Ski/Jet Side Ch2200P   Single lever, dual action for throttle & shift Superior neutral engine warm-up control (ski version) Flush mount design for quick, tidy installation
    Part Number:
    1-CH2200P
    Availability:
    In Stock - Ships same or next business day.
    Description:
    Side mount ski boat control
    $612.59 $503.03
    Add to Cart
  • Seastar Dual Station Unit-Shift 207573
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    Seastar Dual Station Unit-Shift 207573

    Seastar

    $349.29 $236.11
    Seastar Dual Station Unit-Shift 207573The Dual Station (DS) unit is designed for inboard, sterndrive, or outboard boaters that like using one lever to do both throttle and shift in their dual station...
    Part Number:
    1-207573
    Availability:
    In Stock - Ships same or next business day.
    Description:
    Gear Shift Unit
    $349.29 $236.11
    Add to Cart
  • Seastar Elbow Tube Fit.1/4P (3/Bg) Hf5538
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    Seastar Elbow Tube Fit.1/4P (3/Bg) Hf5538

    Seastar

    $49.99 $39.59
    Seastar Elbow Tube Fit.1/4P (3/Bg) Hf5538All Older Style SeaStar manual hydraulic steering systems. These are 3/8" compression fittings which utilize a 9/16"-24 extra fine thread. (Seastar Solutions...
    Part Number:
    1-HF5538
    Availability:
    In Stock - Ships same or next business day.
    Type:
    Street Elbow
    Material:
    Brass
    Bag:
    3
    $49.99 $39.59
    Add to Cart
  • Seastar Hose Kit-2Pc Seastar O/B 22 Ft Ho5122
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    Seastar Hose Kit-2Pc Seastar O/B 22 Ft Ho5122

    Seastar

    $321.39 $198.62
    Seastar Hose Kit-2Pc Seastar O/B 22 Ft Ho5122 Includes two hoses - can be used with all SeaStar systems, except SeaStar PRO, BayStar, Capilano and 3-line inboard systems. ID of 5/16".
    Part Number:
    1-HO5122
    Availability:
    In Stock - Ships same or next business day.
    Length:
    22'
    Box:
    2
    $321.39 $198.62
    Add to Cart
  • Seastar Orb Kit-Add Helm/Autopilot I/B Hf6010
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    Seastar Orb Kit-Add Helm/Autopilot I/B Hf6010

    Seastar

    $123.99 $114.73
    Seastar Orb Kit-Add Helm/Autopilot I/B Hf6010 These fittings fit updated Seastar cylinders and all helm pump to use O-Ring (ORB) type fittings. Before the update all Seastar Solutions helms used NPT...
    Part Number:
    1-HF6010
    Availability:
    In Stock - Ships same or next business day.
    Description:
    Fitting Kit
    Fits:
    Helms
    $123.99 $114.73
    Add to Cart
  • Sold Out, please call for ETA.
    Seastar Sea Star Power Assist Hydraulic Steering Pump, 15' Harness PA13152 PA1200-3

    Seastar Sea Star Power Assist Hydraulic Steering Pump, 15' Harness PA13152 PA1200-3

    Seastar

    $3,227.59 $2,789.99
    DOMETIC SeaStar PA1200-3 Power Assist Hydraulic Steering Pump, 15' Harness The Dometic SeaStar Power Assist PA1200-3 is an electronically controlled gear pump integrated into the hydraulic steering...
    Part Number:
    1-PA12003
    Availability:
    In Stock - Ships same or next business day.
    $3,227.59 $2,789.99
    Sold out - Special order may be available, please call 856-232-6969 ext1
  • Seastar Seal Kit 125Em Mv Bj Atm Hs5154
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    Seastar Seal Kit 125Em Mv Bj Atm Hs5154

    Seastar

    $85.59 $62.93
    Seastar Seal Kit 125Em Mv Bj Atm Hs5154 125 EM MV BJ ATM   Includes thread locker   Seal Kit for Seastar: HC5303, HC5312, HC5328, HC5329, HC5330, HC5331, HC5335, HC5338, and HC5380 steering...
    Part Number:
    1-HS5154
    Availability:
    In Stock - Ships same or next business day.
    $85.59 $62.93
    Add to Cart
  • Seastar Seal Kit-O/B F/M Cylinder Hs5152
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    Seastar Seal Kit-O/B F/M Cylinder Hs5152

    Seastar

    $118.29 $83.52
    Seastar Seal Kit-O/B F/M Cylinder Hs5152   Front Mount Snap Ring Hydraulic Cylinder Seal kit   Contains replacement seals for cylinders with snap ring type end glands only  
    Part Number:
    1-HS5152
    Availability:
    In Stock - Ships same or next business day.
    $118.29 $83.52
    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.