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Aftermarket Parts

Aftermarket Parts

  • Seachoice Primer Bulb 5/16 Low Perm 21321

    Seachoice Primer Bulb 5/16 Low Perm 21321

    Seachoice

    $24.96 $16.15
    Seachoice Primer Bulb 5/16 Low Perm 21321 Meets all EPA, CARB, USCG and ABYC Requirements •  • High output primer bulb with 60% more output per pump than leading competitorsHigh flow double check valves ensure fast priming...
    Part Number:
    50-21321
    Availability:
    In Stock - Ships same or next business day.
    Fits:
    5/16" ID Fuel Hose
    $24.96 $16.15
  • Special Order! See availaility for details
    Seachoice Reed Switch 350Mm 14 50-15561

    Seachoice Reed Switch 350Mm 14 50-15561

    Seachoice

    $96.16 $82.99
    Seachoice Reed Switch 350Mm 14 50-15561 Compatible with most fuel gauges on the market today, with 33 (full) and 240 (empty) ohm gauges, and no moving mechanical parts makes them extremely durableOur senders feature stainless steel immersion tubes,...
    Part Number:
    50-15561
    Availability:
    In Stock - Ships same or next business day.
    Length:
    14"
    $96.16 $82.99
  • Seachoice Steering Wheel W/Knob SS 15.5 28531

    Seachoice Steering Wheel W/Knob SS 15.5 28531

    Seachoice

    $280.21 $179.45
    Seachoice Steering Wheel W/Knob SS 15.5 28531 3 spoke • Stainless steel fits 3/4" tapered shaft • Includes 5/8" - 18 and 1/2" - 20 nut
    Part Number:
    50-28531
    Availability:
    In Stock - Ships same or next business day.
    Dia.:
    15-1/2"
    $280.21 $179.45
  • Seachoice Universal Fuel/Water Separator 20901

    Seachoice Universal Fuel/Water Separator 20901

    Seachoice

    $46.09 $33.75
    Seachoice Universal Fuel/Water Separator 20901 28 Micron filterUniversal 3/8" Ports. •  • 20901: Fits most 2 and 4 cycle gasoline enginesPowder coated bracket includedIncludes 2 brass plugsOne complete set per boxReplaces...
    Part Number:
    50-20901
    Availability:
    In Stock - Ships same or next business day.
    Description:
    Fuel/Water Separator Kit
    $46.09 $33.75
  • Seastar 33LU Cable with Knob T-Handle CC343

    Seastar 33LU Cable with Knob T-Handle CC343

    Seastar

    $129.79 $109.86
    Seastar 33 LU Cable with Knob T-Handle CC343 Flexible push-pull cable for remote control of choke, throttle, shut off, fuel valves, vents and many other applications. Solid stainless steel core wire w/HDPE liner and outer casing for durability and...
    Part Number:
    NW-1CC343
    Availability:
    In Stock - Ships same or next business day.
    $129.79 $109.86
  • Seastar 3400/3300 Adapt-Kit OMC Only Ca27320P

    Seastar 3400/3300 Adapt-Kit OMC Only Ca27320P

    Seastar

    $37.99 $29.99
    Seastar 3400/3300 Adapt-Kit OMC Only Ca27320P For use with 3300 and 3300HP cable. Quick installation and maximum adjustment at engine. Includes throttle and shift adapters.
    Part Number:
    1-CA27320P
    Availability:
    In Stock - Ships same or next business day.
    For:
    OMC
    $37.99 $29.99
  • Seastar Bleeder Tee Horz 3/8 Tube (2) Hf5520

    Seastar Bleeder Tee Horz 3/8 Tube (2) Hf5520

    Seastar

    $137.49 $93.91
    Seastar Bleeder Tee Horz 3/8 Tube (2) Hf5520All 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 Updated cylinders with part numbers ending in...
    Part Number:
    1-HF5520
    Availability:
    In Stock - Ships same or next business day.
    Type:
    Horizontal bleeder tee
    Material:
    Aluminum/Brass
    Bag:
    2
    $137.49 $93.91
  • Seastar Bulk Head Hose Kits 22' 2/Bx Ho8122

    Seastar Bulk Head Hose Kits 22' 2/Bx Ho8122

    Seastar

    $387.79 $319.99
    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 splashwell bulkhead, helping to eliminate excess...
    Part Number:
    1-HO8122
    Availability:
    In Stock - Ships same or next business day.
    Length:
    22'
    Box:
    2
    $387.79 $319.99
  • Seastar Cable Conn Kit 212151003

    Seastar Cable Conn Kit 212151003

    Seastar

    $56.89 $39.13
    Seastar Cable Conn Kit 212151003
    Part Number:
    1-212151003
    Availability:
    In Stock - Ships same or next business day.
    Description:
    3300/33C/OEM Cable Adapter Kit
    For:
    Mounts 3300/33C and some OEM type cables to control
    $56.89 $39.13
  • Seastar Helm Safe-T Qc Sngl Eng with Tilt Sh91523-1P

    Seastar Helm Safe-T Qc Sngl Eng with Tilt Sh91523-1P

    Seastar

    $160.19 $144.70
    Seastar Helm Safe-T Qc Sngl Eng with Tilt Sh91523-1PSingle cable tilt helm for inboards and power-assisted stern drives.Quick connect feature on both sides of helm allow port side helm mount without need for an adaptor. The Quick connect snap in place...
    Part Number:
    1-SH915231P
    Availability:
    In Stock - Ships same or next business day.
    Description:
    Tilt Helm w/quick connect
    $160.19 $144.70
  • Sold Out, please call for ETA.
    Seastar Helm-Seastar 2.0 Hh5273-3

    Seastar Helm-Seastar 2.0 Hh5273-3

    Seastar

    $1,033.99 $913.67
    Seastar Helm-Seastar 2.0 Hh5273-3Efficient, safe and reliable. Easy to install. Feature helm rotor supported by 3 roller bearings, ball bearing piston race, simplified integrated metal construction, field replaceable shaft seal, 1/4'' NPT port threads,...
    Part Number:
    1-HH52733
    Availability:
    In Stock - Ships same or next business day.
    Type:
    SeaStar 2.0
    Mount:
    Front
  • Sold Out, please call for ETA.
    Seastar Helm-Seastar 2.4 Classic Tilt Hh6542-3

    Seastar Helm-Seastar 2.4 Classic Tilt Hh6542-3

    Seastar

    $1,507.29 $1,330.06
    Seastar Helm-Seastar 2.4 Classic Tilt Hh6542-3Unsurpassed performance and flexibility with smooth operation and feel, 48°, of tilt and 5 lock positions. Fits most styled and formed dashes. Preloaded dual taper bearings ensure minimal excess free play...
    Part Number:
    1-HH65423
    Availability:
    In Stock - Ships same or next business day.
    Model:
    2.4
  • Sold Out, please call for ETA.
    Special Order! See availaility for details
    Seastar Helm-Seastar Fm 1.7 Commercial Hh5217-3

    Seastar Helm-Seastar Fm 1.7 Commercial Hh5217-3

    Seastar

    $939.29 $831.58
    Seastar Helm-Seastar Fm 1.7 Commercial Hh5217-3Efficient, safe and reliable. Easy to install. Feature helm rotor supported by 3 roller bearings, ball bearing piston race, simplified integrated metal construction, field replaceable shaft seal, 1/4'' NPT...
    Part Number:
    1-HH52173
    Availability:
    In Stock - Ships same or next business day.
    Type:
    SeaStar 1.7 Commercial Duty
    Mount:
    Front
  • Seastar Hose Kit-2Pc Seastar O/B 10 Ft Ho5110

    Seastar Hose Kit-2Pc Seastar O/B 10 Ft Ho5110

    Seastar

    $188.59 $137.61
    Seastar Hose Kit-2Pc Seastar O/B 10 Ft Ho5110Includes 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-HO5110
    Availability:
    In Stock - Ships same or next business day.
    Length:
    10'
    Box:
    2
    $188.59 $137.61
  • Seastar Hose Kit-2Pc Seastar O/B 2 Ft Ho5102

    Seastar Hose Kit-2Pc Seastar O/B 2 Ft Ho5102

    Seastar

    $193.79 $159.99
    Seastar Hose Kit-2Pc Seastar O/B 2 Ft Ho5102 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-HO5102
    Availability:
    In Stock - Ships same or next business day.
    Length:
    2'
    Box:
    2
    $193.79 $159.99
  • Seastar Nylon Tube 3/8 x 50' 15.2 M Ht5095

    Seastar Nylon Tube 3/8 x 50' 15.2 M Ht5095

    Seastar

    $213.19 $169.99
    Seastar Nylon Tube 3/8 x 50' 15.2 M Ht5095 3/8" nylon tubing. Recommended for SeaStar I sterndrive, seadrive and inboard systems only. Do not use on outboard systems. Not recommended for use with any 2.0 or 2.4 helm pumps.
    Part Number:
    1-HT5095
    Availability:
    In Stock - Ships same or next business day.
    Length:
    50'
    $213.19 $169.99

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.