Aftermarket Parts
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Seachoice Primer Bulb 5/16 Low Perm 21321
Seachoice
$28.95 $22.16Seachoice 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
$28.95 $22.16 -
Special Order! See availaility for details
Seachoice Reed Switch 350Mm 14 50-15561
Seachoice
$104.86 $78.89Seachoice 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"
$104.86 $78.89 -
Seachoice SS Destroyer Boat Marine 5-Spoke Steering Wheel 28551
Seachoice
$123.84 $101.34Seachoice SS Destroyer Steering Wheel 28551 5 spoke for sturdy trouble free operation • Diameter - 15" • Dish - 25°, • Fits standard 3/4" tapered shaft • All welded and polished 304...- Part Number:
- 50-28551
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Stainless Steel with genuine teak cap
$123.84 $101.34 -
Seachoice Steering Wheel W/Knob SS 15.5 28531
Seachoice
$380.55 $194.58Seachoice 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"
$380.55 $194.58 -
Seastar 33LU Cable with Knob T-Handle CC343
Seastar
$109.86Seastar 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.
$109.86 -
Seastar 630 Series Control Cable CC210
Seastar
$82.19 $51.87Seastar 630 Series Control Cable CC210 Mariner/Mercury/Mercruiser/Force/US MarineStainless steel and brass fittings. Fits Mariner (pre-1993 40hp & less w/Mercury/Mariner controls. 8" Min bend radius.- Part Number:
- NW-1CC210
- Availability:
- In Stock - Ships same or next business day.
$82.19 $51.87 -
Seastar Bleeder Tee Horz 3/8 Tube (2) Hf5520
Seastar
$147.99 $113.24Seastar 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
$147.99 $113.24 -
Seastar Bulk Head Hose Kits 22' 2/Bx Ho8122
Seastar
$403.39 $295.71Seastar 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
$403.39 $295.71 -
Seastar Cable Conn Kit 212151003
Seastar
$64.49 $50.46Seastar 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
$64.49 $50.46 -
Seastar Clamp & Shim #031532/031538 42756
Seastar
$15.19 $12.40Seastar Clamp & Shim #031532/031538 42756- Part Number:
- 1-042756
- Availability:
- In Stock - Ships same or next business day.
- Cable:
- 4300
- Description:
- Clamp & Shim
- Center:
- 1/2"
- Width:
- 1"
$15.19 $12.40 -
Seastar Clamp Block Kit Stainless Sa27149P
Seastar
$324.99 $247.91Seastar Clamp Block Kit Stainless Sa27149P- Part Number:
- 1-SA27149P
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Outdoor Clamp Block - Stainless Steel for outboard engines
$324.99 $247.91 -
Sold Out, please call for ETA.
Seastar Control Adaptor - OMC 304939
Seastar
$170.39 $168.52Seastar Control Adaptor - OMC 304939 For 3300/33C style cables- Part Number:
- 1-304939
- Availability:
- In Stock - Ships same or next business day.
- Description:
- OMC/Johnson/Evinrude - 1979 On
$170.39 $168.52 -
Seastar Cylinder Hose Kit 18" S Star Ha5731
Seastar
$130.99 $119.81Seastar Cylinder Hose Kit 18" S Star Ha5731 Contains two hoses 18" long. For single cylinder applications. Supplied with 1/2" swivel flare nuts on each end. Required of steering systems installed with copper tubing to accommodate slight cylinder...- Part Number:
- 1-HA5731
- Availability:
- In Stock - Ships same or next business day.
$130.99 $119.81 -
Seastar Fill & Vent Plug Kit SStar3 Ha5450
Seastar
$139.69 $106.80Seastar Fill & Vent Plug Kit SStar3 Ha5450 Will facilitate filling and purging of steering system at a more convenient and accessible area than at a helm pump. Contains thru-dash fitting, waterproof vent plug, elbow fittings and 18" of vinyl tube.- Part Number:
- 1-HA5450
- Availability:
- In Stock - Ships same or next business day.
- Description:
- For Capilano Systems
$139.69 $106.80 -
Sold Out, please call for ETA.
Seastar Helm-Seastar 2.0 Hh5273-3
Seastar
$1,033.99 $913.67Seastar 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
$1,033.99 $913.67 -
Sold Out, please call for ETA.
Seastar Helm-Seastar 2.4 Classic Tilt Hh6542-3
Seastar
$1,507.29 $1,330.06Seastar 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
$1,507.29 $1,330.06 -
Sold Out, please call for ETA.Special Order! See availaility for details
Seastar Helm-Seastar Fm 1.7 Commercial Hh5217-3
Seastar
$939.29 $831.58Seastar 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
$939.29 $831.58 -
Seastar Hose Kit-2Pc Seastar O/B 10 Ft Ho5110
Seastar
$201.59 $147.95Seastar 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
$201.59 $147.95 -
Seastar Hose Kit-2Pc Seastar O/B 2 Ft Ho5102
Seastar
$201.59 $146.41Seastar 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
$201.59 $146.41 -
Seastar Kit Changes Hc4645 Into Hc4658 Ha4643
Seastar
$169.09 $128.27Seastar Kit Changes Hc4645 Into Hc4658 Ha4643Converts HC4645 into HC4658- Part Number:
- 1-HA4643
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Adapter Plate
$169.09 $128.27
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.