Aftermarket Parts
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Seachoice Red Knob (For 2840 & 2839) 28411
Seachoice
$8.51 $7.83Seachoice Red Knob (For 2840 & 2839) 28411 Made of chrome plated brassEach separate lever controls clutch and throttle for one engineNot for dual station applicationsFuncti- Part Number:
- 50-28411
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Red Knob
$8.51 $7.83 -
Special Order! See availaility for details
Seachoice Reed Switch 150Mm 6 50-15521
Seachoice
$67.99 $46.19Seachoice Reed Switch 150Mm 6 50-15521 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...- Part Number:
- 50-15521
- Availability:
- In Stock - Ships same or next business day.
- Length:
- 6"
$67.99 $46.19 -
Seachoice Universal Fuel/Water Separator 20901
Seachoice
$47.70 $40.47Seachoice Universal Fuel/Water Separator 20901 28 Micron filterUniversal 3/8" Ports. • • 20901: Fits most 2 and 4 cycle gasoline engines- Part Number:
- 50-20901
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Fuel/Water Separator Kit
$47.70 $40.47 -
Seastar 3300 Brass Pivot Kit F/Ch4400& Ca27563P
Seastar
$65.89 $51.92Seastar 3300 Brass Pivot Kit F/Ch4400& Ca27563P Brass. Heavy duty. Fits Teleflex Morse and other control cables with 10-32 ends. Kit contains 2 each of pivot end, bushing, cotter pin and washer. For...- Part Number:
- 1-CA27563P
- Availability:
- In Stock - Ships same or next business day.
$65.89 $51.92 -
Seastar 3400/3300 Adapt-Kit OMC Only Ca27320P
Seastar
$39.59 $32.99Seastar 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
$39.59 $32.99 -
Seastar Bolt Hex Head & Nut 3/8 185921 Hp6007
Seastar
$98.39 $77.06Seastar Bolt Hex Head & Nut 3/8 185921 Hp6007- Part Number:
- 1-HP6007
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Bolt - hex head and nut - 3/8" x 1-5/8" - 3 each
$98.39 $77.06 -
Seastar Cable Clamp Two 7/32 Dia 31532
Seastar
$8.19 $7.18Seastar Cable Clamp Two 7/32 Dia 31532- Part Number:
- 1-031532
- Availability:
- In Stock - Ships same or next business day.
- Cable:
- 4300
- Description:
- Clamp
- Center:
- 1/2"
- Width:
- 1"
$8.19 $7.18 -
Seastar Cylinder Outboard Fm Pro Yam Hc6358-3
Seastar
$1,281.39 $920.34Seastar Cylinder Outboard Fm Pro Yam Hc6358-3The SeaStar Pro Front Mount Outboard Cylinders have keyed support brackets to prevent racking of the cylinder which gives it a more solid feel and more...- Part Number:
- 1-HC63583
- Availability:
- In Stock - Ships same or next business day.
- Description:
- SeaStar Pro - Yamaha
- Mount:
- Pivot
$1,281.39 $920.34 -
Seastar Helm Safe-T Qc Sngl Eng with Tilt Sh91523-1P
Seastar
$177.69 $158.69Seastar Helm Safe-T Qc Sngl Eng with Tilt Sh91523-1P Single cable tilt helm for inboards and power-assisted stern drives.Quick connect feature on both sides of helm allow port side helm mount...- Part Number:
- 1-SH915231P
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Tilt Helm w/quick connect
$177.69 $158.69 -
Sold Out, please call for ETA.
Seastar Helm-Seastar 1 1.7 Hh5271-3
Seastar
$793.39 $692.99Seastar Helm-Seastar 1 1.7 Hh5271-3Efficient, safe and reliable. Easy to install. Feature helm rotor supported by 3 roller bearings, ball bearing piston race, simplified integrated metal...- Part Number:
- 1-HH52713
- Availability:
- In Stock - Ships same or next business day.
- Type:
- SeaStar 1.7
- Mount:
- Front
$793.39 $692.99 -
Sold Out, please call for ETA.
Seastar Helm-Seastar 1.4 Hh5269-3
Seastar
$862.99 $789.23Seastar Helm-Seastar 1.4 Hh5269-3Efficient, safe and reliable. Easy to install. Feature helm rotor supported by 3 roller bearings, ball bearing piston race, simplified integrated metal construction,...- Part Number:
- 1-HH52693
- Availability:
- In Stock - Ships same or next business day.
- Type:
- SeaStar 1.4
- Mount:
- Front
$862.99 $789.23 -
Seastar Hose Kit-2Pc Seastar O/B 18 Ft Ho5118
Seastar
$266.29 $155.88Seastar Hose Kit-2Pc Seastar O/B 18 Ft Ho5118 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-HO5118
- Availability:
- In Stock - Ships same or next business day.
- Length:
- 18'
- Box:
- 2
$266.29 $155.88 -
Seastar Hose Kit-2Pc Seastar O/B 30 Ft Ho5130
Seastar
$404.09 $296.05Seastar Hose Kit-2Pc Seastar O/B 30 Ft Ho5130 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-HO5130
- Availability:
- In Stock - Ships same or next business day.
- Length:
- 30'
- Box:
- 2
$404.09 $296.05 -
Seastar Hose Kit-2Pc Seastar O/B 8 Ft Ho5108
Seastar
$187.09 $149.21Seastar Hose Kit-2Pc Seastar O/B 8 Ft Ho5108Includes 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-HO5108
- Availability:
- In Stock - Ships same or next business day.
- Length:
- 8'
- Box:
- 2
$187.09 $149.21 -
Seastar Liquid Tiebar Valve Ha54712
Seastar
$626.39 $433.56Seastar Liquid Tiebar Valve Ha54712 The SeaStar cylinder allows for the periodic required realignment of two outboard motors or rudders that are linked together with a hydraulic tie bar as opposed...- Part Number:
- 1-HA54712
- Availability:
- In Stock - Ships same or next business day.
$626.39 $433.56 -
Sold Out, please call for ETA.
Seastar OMC 479 Cable CC205
Seastar
$45.16Seastar OMC 479 Cable CC205 Stainless steel and brass fittings. Fits 1979-date BRP/OMC/Johnson/Evinrude w/BRP/OMC controls and OMC Turbo Jets w/OMC side mount controls that accept OMC "snap in" type...- Part Number:
- NW-1CC205
- Availability:
- In Stock - Ships same or next business day.
$45.16 -
Seastar Seal Kit 175-7Ba Std Tr M Hs5183
Seastar
$112.39 $88.18Seastar Seal Kit 175-7Ba Std Tr M Hs5183- Part Number:
- 1-HS5183
- Availability:
- In Stock - Ships same or next business day.
$112.39 $88.18 -
Seastar Seal Kit Hs5151
Seastar
$95.39 $73.51Seastar Seal Kit Hs5151 For the SeaStar helm pump. Units prior to 1984, there is no seal kit.- Part Number:
- 1-HS5151
- Availability:
- In Stock - Ships same or next business day.
$95.39 $73.51 -
Seastar Tee Fitting 1/4 x 3/8 (3/Bg) Hf5536
Seastar
$81.99 $47.14Seastar Tee Fitting 1/4 x 3/8 (3/Bg) Hf5536 All Older Style SeaStar manual hydraulic steering systems. These are 3/8" compression fittings which utilize a 9/16"-24 extra fine thread. (Seastar...- Part Number:
- 1-HF5536
- Availability:
- In Stock - Ships same or next business day.
- Type:
- Tee Fitting
- Material:
- Aluminum
- Bag:
- 3
$81.99 $47.14 -
Seastar Terminal Eye Pin Kit 301456
Seastar
$39.69 $32.67Seastar Terminal Eye Pin Kit 301456Contains terminal eye pin, E-ring, nut and washer.- Part Number:
- 1-301456
- Availability:
- In Stock - Ships same or next business day.
- Cable:
- 3300
- Pin:
- 1-1/2" x 5/16"
$39.69 $32.67
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.