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Aftermarket Parts

Aftermarket Parts

  • Seachoice Alpha One Gen 2 Kit Aluminum 50-95021

    Seachoice Alpha One Gen 2 Kit Aluminum 50-95021

    Seachoice

    $69.99 $54.84
    Seachoice Alpha One Gen 2 Kit Aluminum 50-95021 Cadmium free, environmentally friendly. • Aluminum: For salt and brackish waterConform to: Mil-Spec A-24779(SH)  • Magnesium: For freshwater onlyConform to: Mil-Spec...
    Part Number:
    50-95021
    Availability:
    In Stock - Ships same or next business day.
    Material:
    Aluminum
    $69.99 $54.84
  • Seachoice Marine Boat Adj Fuel Tank Sender 6-12" 15461

    Seachoice Marine Boat Adj Fuel Tank Sender 6-12" 15461

    Seachoice

    $42.51 $41.99
    Seachoice Adj Fuel Tank Sender 6-12" 15461 Can be used for gas or dieselMade of non-ferrous materials and compatible with 35 (full) to 240 (empty) ohm gaugesMounting screws and gasket includedFloat arm can be rotated in 90&deg, intervals to assure...
    Part Number:
    50-15461
    Availability:
    In Stock - Ships same or next business day.
    Tank Depth:
    6" to 12"
    $42.51 $41.99
  • Seastar Hose Kit-2Pc Seastar O/B 14 Ft Ho5114

    Seastar Hose Kit-2Pc Seastar O/B 14 Ft Ho5114

    Seastar

    $188.99 $164.99
    Seastar Hose Kit-2Pc Seastar O/B 14 Ft Ho5114 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-HO5114
    Availability:
    In Stock - Ships same or next business day.
    Length:
    14'
    Box:
    2
    $188.99 $164.99
  • Seloc Publishing Manual MerCruiser 01-13 Gas Drives I/B 3208

    Seloc Publishing Manual MerCruiser 01-13 Gas Drives I/B 3208

    Seloc Publishing

    $61.49 $55.99
    Seloc Publishing Manual MerCruiser 01-13 Gas Drives I/B 3208 The only marine tune-up manuals to be certified by the engine manufacturers as accurate and complete. Seloc uses easy to understand, step-by-step, illustrated procedures for the complete...
    Part Number:
    230-3208
    Availability:
    In Stock - Ships same or next business day.
    Type:
    Mercruiser Sterndrives & Inboards
    Description:
    All Gas Engines & Drives - incl. Inboards
    Year:
    2001-2013
    $61.49 $55.99
  • Attwood Marine Gear Lube Pump 11891D7

    Attwood Marine Gear Lube Pump 11891D7

    Attwood Marine

    $10.59 $8.99
    Attwood Marine Gear Lube Pump 11891D7 The pump fits any outboard or sterndrive and includes one Yamaha® adapter.
    Part Number:
    23-11891D7
    Availability:
    In Stock - Ships same or next business day.
    Fits:
    22 oz. Gear Lube bottles
    $10.59 $8.99
  • Martyr Anodes 1 1/4 Zinc Shaft Anode Cmx05

    Martyr Anodes 1 1/4 Zinc Shaft Anode Cmx05

    Martyr Anodes

    $13.99 $11.99
    Martyr Anodes 1 1/4 Zinc Shaft Anode Cmx05 Aluminum for salt and brackish waterMagnesium for fresh waterZinc for salt water
    Part Number:
    194-CMX05
    Availability:
    In Stock - Ships same or next business day.
    ID:
    1-1/4"
    OD:
    2-1/2"
    Length:
    2-1/2"
    Material:
    Zinc
    $13.99 $11.99
  • Martyr Anodes 1 Magnesium Shaft Anode Cmx03M

    Martyr Anodes 1 Magnesium Shaft Anode Cmx03M

    Martyr Anodes

    $27.19 $19.99
    Martyr Anodes 1 Magnesium Shaft Anode Cmx03M Aluminum for salt and brackish waterMagnesium for fresh waterZinc for salt water
    Part Number:
    194-CMX03M
    Availability:
    In Stock - Ships same or next business day.
    ID:
    1"
    OD:
    2-1/8"
    Length:
    2-1/8"
    Material:
    Magnesium
    $27.19 $19.99
  • Martyr Anodes Anode Aluminum Button Cm55989A

    Martyr Anodes Anode Aluminum Button Cm55989A

    Martyr Anodes

    $7.59 $4.58
    Martyr Anodes Anode Aluminum Button Cm55989AAluminum for salt and brackish waterMagnesium for fresh waterZinc for salt water
    Part Number:
    194-CM55989A
    Availability:
    In Stock - Ships same or next business day.
    Description:
    Alpha Gimbal HSG
    Material:
    Aluminum
    $7.59 $4.58
  • NGK Spark Plugs 6499 Spark Plug LFR4AE Mercury 8m0157328

    NGK Spark Plugs 6499 Spark Plug LFR4AE Mercury 8m0157328

    NGK Spark Plugs

    $18.04 $9.99
    NGK Spark Plugs 6499 Spark Plug LFR4AE Mercury 8m0157328 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...
    Part Number:
    41-6499
    Availability:
    In Stock - Ships same or next business day.
    Model #:
    6499
    What's in the Box:
    (1) Spark Plug
    $18.04 $9.99
  • Seachoice Anode Kit Mercruiser Bravo2  II (1989-Present) 3 III (1989-2003) Magnesium Fresh Water only 95071

    Seachoice Anode Kit Mercruiser Bravo2 II (1989-Present) 3 III (1989-2003) Magnesium Fresh Water only 95071

    Seachoice

    $108.60 $71.16
    Seachoice Bravo II/III Kit - Mg Freshwat 50-95071 Cadmium free, environmentally friendly. • Aluminum: For salt and brackish waterConform to: Mil-Spec A-24779(SH)  • Magnesium: For freshwater onlyConform to: Mil-Spec...
    Part Number:
    50-95071
    Availability:
    In Stock - Ships same or next business day.
    Fits:
    Bravo II 1989-Pres. Bravo III 1989-2003
    Material:
    Magnesium
    $108.60 $71.16
  • Sierra Eclipse Tachometer 0-7000 Rpm 68399P

    Sierra Eclipse Tachometer 0-7000 Rpm 68399P

    Sierra

    $141.89 $92.99
    Sierra Eclipse Tachometer 0-7000 Rpm 68399PSmart white and blue graphics on a black dial background; these very low profile bezels follow the curve of the lense to eliminate water trapping. Design with domed glass sheds water and resists scratching...
    Part Number:
    11-68399P
    Availability:
    In Stock - Ships same or next business day.
    Size:
    3"
    Type:
    Tachometer - Petrol/Gas
    Dial Range:
    0-7000 rpm
    Sender Code:
    O/B Alt or Coil
    $141.89 $92.99
  • Sierra Filter-H2O Separator Vp-Om Sx-Efi 21M 18-7789

    Sierra Filter-H2O Separator Vp-Om Sx-Efi 21M 18-7789

    Sierra

    $12.99 $11.99
    Sierra Filter-H2O Separator Vp-Om Sx-Efi 21M 18-7789Clear Bowls: Use for outboard and above deck installations.USCG regulations require the use of flame resistant Metal bowls below deck.
    Part Number:
    47-7789
    Availability:
    In Stock - Ships same or next business day.
    Description:
    Element
    Replaces:
    Volvo SX/EFI - Replaces: 3851218-2 - 3852413 - 3862228. Cobra EFI - Replaces: OMC 502906
    $12.99 $11.99

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.