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Aftermarket Parts

Aftermarket Parts

  • Seachoice Bravo One Kit-Mg Freshwater 50-95051

    Seachoice Bravo One Kit-Mg Freshwater 50-95051

    Seachoice

    $101.47 $66.72
    Seachoice Bravo One Kit-Mg Freshwater 50-95051 Cadmium free, environmentally friendly. • Aluminum: For salt and brackish waterConform to: Mil-Spec A-24779(SH)  • Magnesium: For freshwater onlyConform to: Mil-Spec A-21412(SH)...
    Part Number:
    50-95051
    Availability:
    In Stock - Ships same or next business day.
    Material:
    Magnesium
    $101.47 $66.72
  • Seachoice Fuel Elbow 90 Deg 3/8 x 3/8Np 20861

    Seachoice Fuel Elbow 90 Deg 3/8 x 3/8Np 20861

    Seachoice

    $14.09 $12.99
    Seachoice Fuel Elbow 90 Deg 3/8 x 3/8Np 20861 All brass machined fittingsIdeal for fuel fitting applicationsExcellent for use with fuel/water separator where space is limited.
    Part Number:
    50-20861
    Availability:
    In Stock - Ships same or next business day.
    Thread:
    3/8" NPT
    Hose:
    3/8"
    $14.09 $12.99
  • Seachoice Yamaha 200-250 Hp Kit - Al 50-95231

    Seachoice Yamaha 200-250 Hp Kit - Al 50-95231

    Seachoice

    $52.51 $36.57
    Seachoice Yamaha 200-250 Hp Kit - Al 50-95231 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:
    50-95231
    Availability:
    In Stock - Ships same or next business day.
    Fits:
    200-250 HP
    Material:
    Aluminum
    $52.51 $36.57
  • Seastar Baystar Tubing Kit 30' Ht4430H

    Seastar Baystar Tubing Kit 30' Ht4430H

    Seastar

    $344.19 $195.58
    Seastar Baystar Tubing Kit 30' Ht4430HCan be used with all BayStar helms with appropriate fittings. Kit contains two cut lengths of tubing.(NOTE: BayStar Cylinders with H suffix must use tubing part number with H suffix.)
    Part Number:
    1-HT4430H
    Availability:
    In Stock - Ships same or next business day.
    Description:
    Baystar Tubing
    Length:
    30' (2 x 30')
    $344.19 $195.58
  • Seastar Cable Gard/Tilt Tube Seal Nut Sa39329P

    Seastar Cable Gard/Tilt Tube Seal Nut Sa39329P

    Seastar

    $23.79 $19.99
    Seastar Cable Gard/Tilt Tube Seal Nut Sa39329P A unique wiper seal that slips over the cable output ram and snaps onto the tilt tube nut. Dirt and corrosion are wiped out while essential lubrication is sealed in the engine tilt tube. Adds years of...
    Part Number:
    1-SA39329P
    Availability:
    In Stock - Ships same or next business day.
    $23.79 $19.99
  • Seastar Control Cable 4300CC TFXtreme CCX433

    Seastar Control Cable 4300CC TFXtreme CCX433

    Seastar

    $106.39 $90.71
    Seastar Control Cable 4300CC TFXtreme CCX433 4300CC/43CC universal type cables for heavy duty applications with clamp ends at the control and the drive. Splined core allows easy movement and minimum lost motion. Both ends have a 1/4-28 threaded fitting...
    Part Number:
    NW-1CCX433
    Availability:
    In Stock - Ships same or next business day.
    $106.39 $90.71
  • Seastar Grounding Strap-O/B Hyd Cyl Ha5477

    Seastar Grounding Strap-O/B Hyd Cyl Ha5477

    Seastar

    $40.09 $35.99
    Seastar Grounding Strap-O/B Hyd Cyl Ha5477 The grounding strap kit is designed to provide added protection against corrosion caused by stray current. This is designed for use on the SeaStar and BayStar front mount outboard cylinders. Included with all...
    Part Number:
    1-HA5477
    Availability:
    In Stock - Ships same or next business day.
    $40.09 $35.99
  • Sold Out, please call for ETA.
    Seastar Helm-Seastar 2 2.4 Hh5272-3

    Seastar Helm-Seastar 2 2.4 Hh5272-3

    Seastar

    $959.89 $849.34
    Seastar Helm-Seastar 2 2.4 Hh5272-3Efficient, 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-HH52723
    Availability:
    In Stock - Ships same or next business day.
    Type:
    SeaStar 2.4
    Mount:
    Front
  • Seastar Hose Kit-2Pc Seastar O/B 26 Ft Ho5126

    Seastar Hose Kit-2Pc Seastar O/B 26 Ft Ho5126

    Seastar

    $339.09 $289.99
    Seastar Hose Kit-2Pc Seastar O/B 26 Ft Ho5126 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-HO5126
    Availability:
    In Stock - Ships same or next business day.
    Length:
    26'
    Box:
    2
    $339.09 $289.99
  • Seastar Pro Series Tilt Mechanism Sh91800P

    Seastar Pro Series Tilt Mechanism Sh91800P

    Seastar

    $222.39 $169.99
    Seastar Pro Series Tilt Mechanism Sh91800P Tilt mechanism with flexible bellows and 3/4" tapered shaft. Requires tilt helm assembly.
    Part Number:
    1-SH91800P
    Availability:
    In Stock - Ships same or next business day.
    Description:
    Tilt Mechanism
    $222.39 $169.99
  • Seastar Seal Kit Hp5608

    Seastar Seal Kit Hp5608

    Seastar

    $212.39 $169.99
    Seastar Seal Kit Hp5608
    Part Number:
    1-HP5608
    Availability:
    In Stock - Ships same or next business day.
    Description:
    Gland/seal kit
    Fits:
    HC4645H/47H/48H/58H starboard side
    $212.39 $169.99
  • Seastar Tee Fitting End 3/8 Tube(3/Bg) Hf5530

    Seastar Tee Fitting End 3/8 Tube(3/Bg) Hf5530

    Seastar

    $71.19 $47.99
    Seastar Tee Fitting End 3/8 Tube(3/Bg) Hf5530 All 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-HF5530
    Availability:
    In Stock - Ships same or next business day.
    Type:
    Tee Fitting
    Material:
    Brass
    Bag:
    3
    $71.19 $47.99
  • Sherwood Water Pump Impeller Kit with Gaskets 10615k

    Sherwood Water Pump Impeller Kit with Gaskets 10615k

    Sherwood Pump

    $55.09 $41.99
    Sherwood Pump P Impeller Kit with Gaskets 10615K Neoprene maximum temperature 130°F.Part numbers ending in "K" designate impeller kits which include impeller, gasket and O-ring.
    Part Number:
    762-10615K
    Availability:
    In Stock - Ships same or next business day.
    Description:
    Impeller
    Blades:
    12
    Dia.:
    2-9/16"
    Width:
    1-5/8"
    Shaft:
    5/8"
    Keyway:
    3/16"
    $55.09 $41.99

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.