FREE SHIPPING OVER $99

BEST PRICE GUARANTEED

EARN POWERBOAT REWARDS

SUPPORT M-F 9-5 EST: 856-232-6969

Aftermarket Parts

Aftermarket Parts

  • Seachoice Motorwell Boot-Vinyl Plas-3 29301

    Seachoice Motorwell Boot-Vinyl Plas-3 29301

    Seachoice

    $9.84 $8.99
    Seachoice Motorwell Boot-Vinyl Plas-3 29301 Seals off water intake and protects cables, wiring and gas linesMade of durable vinyl plastisol.
    Part Number:
    50-29301
    Availability:
    In Stock - Ships same or next business day.
    Size:
    3"
    $9.84 $8.99
  • Seachoice Reed Switch 150Mm 13" 50-15556

    Seachoice Reed Switch 150Mm 13" 50-15556

    Seachoice

    $140.58 $79.99
    Seachoice Reed Switch 150Mm 13" 50-15556 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:
    50-15556
    Availability:
    In Stock - Ships same or next business day.
    Length:
    13"
    $140.58 $79.99
  • Seachoice Self Priming Pump 19141

    Seachoice Self Priming Pump 19141

    Seachoice

    $25.16 $19.99
    Seachoice Self Priming Pump 19141 Just shake end with glass ball while in tank to be drainedPut other end of hose in tank to be filledIdeal for transferring liquids (fuel, water, etc.) Anti-static for transferring fuel.
    Part Number:
    50-19141
    Availability:
    In Stock - Ships same or next business day.
    Size:
    1/2" x 6'
    $25.16 $19.99
  • Seachoice Square Hour Meter-Black Bezel 15321

    Seachoice Square Hour Meter-Black Bezel 15321

    Seachoice

    $53.07 $44.99
    Seachoice Square Hour Meter-Black Bezel 15321 High impact polycarbonate caseSelf-lubricating parts, increases shelf life, reduces frictionPolarity insensitivity prevents installation errorsU-bracket mounting4V to 50V DCMeets NEMA and SAE specifications.
    Part Number:
    50-15321
    Availability:
    In Stock - Ships same or next business day.
    Finish:
    Rectangular
    $53.07 $44.99
  • Seachoice SS Destroyer Steering Wheel 28541

    Seachoice SS Destroyer Steering Wheel 28541

    Seachoice

    $167.98 $123.35
    Seachoice SS Destroyer Steering Wheel 28541 5 spoke for sturdy trouble free operation • Diameter - 15" • Dish - 25°, • Fits standard 3/4" tapered shaft • All welded and polished 304 stainless...
    Part Number:
    50-28541
    Availability:
    In Stock - Ships same or next business day.
    Description:
    Stainless Steel with turning knob & black center cap
    $167.98 $123.35
  • Seachoice SS Steering Guard-1 28261

    Seachoice SS Steering Guard-1 28261

    Seachoice

    $43.24 $29.21
    Seachoice SS Steering Guard-1 28261 The Steering Guard should be installed on all cable and side-mounted hydraulic steering systems to lubricate, clean and seal the systemWill more than double the life of a new cable systemMade of stainless steelInstalls...
    Part Number:
    50-28261
    Availability:
    In Stock - Ships same or next business day.
    Size:
    1"
    $43.24 $29.21
  • Seachoice SS Steering Guard-7/8 28251

    Seachoice SS Steering Guard-7/8 28251

    Seachoice

    $43.24 $29.78
    Seachoice SS Steering Guard-7/8 28251 The Steering Guard should be installed on all cable and side-mounted hydraulic steering systems to lubricate, clean and seal the systemWill more than double the life of a new cable systemMade of stainless...
    Part Number:
    50-28251
    Availability:
    In Stock - Ships same or next business day.
    Size:
    7/8"
    $43.24 $29.78
  • Seachoice Suzuki 90-140 - Aluminum 50-95431

    Seachoice Suzuki 90-140 - Aluminum 50-95431

    Seachoice

    $45.91 $30.01
    Seachoice Suzuki 90-140 - Aluminum 50-95431 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:
    50-95431
    Availability:
    In Stock - Ships same or next business day.
    Fits:
    90-140 HP
    Material:
    Aluminum
    $45.91 $30.01
  • Seachoice Turning Knob SS-Medium 28521

    Seachoice Turning Knob SS-Medium 28521

    Seachoice

    $36.99 $24.91
    Seachoice Turning Knob SS-Medium 28521 Easily converts existing Destroyer wheels to the most modern versionsInstallation tool includedFits Destroyer wheels only.
    Part Number:
    50-28521
    Availability:
    In Stock - Ships same or next business day.
    $36.99 $24.91
  • Seachoice Turning Knob-SS-Large 28491

    Seachoice Turning Knob-SS-Large 28491

    Seachoice

    $41.99 $27.77
    Seachoice Turning Knob-SS-Large 28491 Easily converts existing Destroyer wheels to the most modern versionsAttractive and durable black plastic centerFits Destroyer wheels only.
    Part Number:
    50-28491
    Availability:
    In Stock - Ships same or next business day.
    $41.99 $27.77
  • Seachoice Volvo/Omc Sx Kit - Al 50-95341

    Seachoice Volvo/Omc Sx Kit - Al 50-95341

    Seachoice

    $59.99 $45.85
    Seachoice Volvo/Omc Sx Kit - Al 50-95341 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:
    50-95341
    Availability:
    In Stock - Ships same or next business day.
    Fits:
    SX
    Material:
    Aluminum
    $59.99 $45.85
  • Seachoice Wire Tube Brush 90391

    Seachoice Wire Tube Brush 90391

    Seachoice

    $19.99 $12.53
    Seachoice Wire Tube Brush 90391 Cleans tilt tubes • For use with electric drills • Sold in pairs
    Part Number:
    50-90391
    Availability:
    In Stock - Ships same or next business day.
    Pack:
    1 pr.
    $19.99 $12.53
  • Sold Out, please call for ETA.
    Seastar 1250V Seastar Helm Pump Hh5250

    Seastar 1250V Seastar Helm Pump Hh5250

    Seastar

    $2,095.59 $1,452.50
    Seastar 1250V Seastar Helm Pump Hh5250For extra heavy duty/commercial vessels, the Capilano steering system offers extremely rugged and reliable 'variable flow'. Rear-mount helms and heavy duty brass cylinders with stainless steel and bronze mounting...
    Part Number:
    1-HH5250
    Availability:
    In Stock - Ships same or next business day.
    Description:
    Model 1250V
  • Seastar Autopilot Pump-Type 2 12V Ap1233

    Seastar Autopilot Pump-Type 2 12V Ap1233

    Seastar

    $806.99
    Seastar Autopilot Pump-Type 2 12V Ap1233 Fixed flow, reversible pump set that uses an internal hydraulic gear pump, producing very little vibration or noise. Long life 12 VDC motor (i.e. long life brushes) Compact design Simplified...
    Part Number:
    1-AP1233
    Availability:
    In Stock - Ships same or next business day.
    Description:
    100 cu in
    $806.99
  • Seastar Back Mount Steering Rack No Feedback Dual Package SS152

    Seastar Back Mount Steering Rack No Feedback Dual Package SS152

    Seastar

    $797.39 $629.99
    Seastar Back Mount Steering Rack No Feedback Dual Package SS152 NFB Pro Rack systems are suitable for single-station, high performance boats equipped with a single non-power-assisted outboard (up to V-6) in which engine flutter or steering instability is...
    Part Number:
    NW-1SS152K
    Availability:
    In Stock - Ships same or next business day.
    $797.39 $629.99

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.