Aftermarket Parts
-
Seastar I/O & Inboard Fitting Kit Hf5502
Seastar
$149.19 $114.24Seastar I/O & Inboard Fitting Kit Hf5502These fitting kits enable installation of a 2nd station helm or an autopilot pump into an existing SeaStar steering system. Some additional parts which are...- Part Number:
- 1-HF5502
- Availability:
- In Stock - Ships same or next business day.
- Application:
- Inboard/Sterndrive Kit
$149.19 $114.24 -
Sold Out, please call for ETA.
Seastar I6300 Kit-Twin Eng No Tilt-Trm I6312
Seastar
$12.80Seastar I6300 Kit-Twin Eng No Tilt-Trm I6312Suitable for all mechanical throttle/mechanical shift applications. Delivers finger tip precise control of your engine's shift and throttle functions...- Part Number:
- 1-I6312
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Dual Engine
- Volts:
- 43458
$12.80 -
Sold Out, please call for ETA.
Seastar I6800 Add-Sta 1-Eng No Trim I6811A
Seastar
$1,197.59 $9.25Seastar I6800 Add-Sta 1-Eng No Trim I6811AThe i6800 system delivers precise control of a boat's shift and throttle functions and is suitable for all single or twin engine applications w/ mechanical...- Part Number:
- 1-I6811A
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Add a station: 1 engine w/o Trim
$1,197.59 $9.25 -
Sold Out, please call for ETA.
Seastar I6800 Add-Sta 2-Eng No Trim I6812A
Seastar
$1,427.49 $16.89Seastar I6800 Add-Sta 2-Eng No Trim I6812AThe i6800 system delivers precise control of a boat's shift and throttle functions and is suitable for all single or twin engine applications w/ mechanical...- Part Number:
- 1-I6812A
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Add a station: 2 engine w/o Trim
$1,427.49 $16.89 -
Sold Out, please call for ETA.
Seastar I6800 Add-Sta 2-Eng W-Trim I6852A
Seastar
$1,482.49 $16.89Seastar I6800 Add-Sta 2-Eng W-Trim I6852AThe i6800 system delivers precise control of a boat's shift and throttle functions and is suitable for all single or twin engine applications w/ mechanical...- Part Number:
- 1-I6852A
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Add a station: 2 engine w/Trim
$1,482.49 $16.89 -
Sold Out, please call for ETA.
Seastar I6800 Kit 1-Eng 1-Sta No Trim I6811
Seastar
$2,763.69 $24.00Seastar I6800 Kit 1-Eng 1-Sta No Trim I6811The i6800 system delivers precise control of a boat's shift and throttle functions and is suitable for all single or twin engine applications w/ mechanical...- Part Number:
- 1-I6811
- Availability:
- In Stock - Ships same or next business day.
- Description:
- I6800 Kit: 1 engine - 1 station - w/o trim
$2,763.69 $24.00 -
Sold Out, please call for ETA.
Seastar I6800 Kit 2-Eng 1-Sta No Trim I6812
Seastar
$24.00Seastar I6800 Kit 2-Eng 1-Sta No Trim I6812The i6800 system delivers precise control of a boat's shift and throttle functions and is suitable for all single or twin engine applications w/ mechanical...- Part Number:
- 1-I6812
- Availability:
- In Stock - Ships same or next business day.
- Description:
- I6800 Kit: 2 engine - 1 station - w/o trim
$24.00 -
Sold Out, please call for ETA.
Seastar I6800 Kit 2-Eng 1-Sta W-Trim I6852
Seastar
$4,689.69 $24.00Seastar I6800 Kit 2-Eng 1-Sta W-Trim I6852The i6800 system delivers precise control of a boat's shift and throttle functions and is suitable for all single or twin engine applications w/ mechanical...- Part Number:
- 1-I6852
- Availability:
- In Stock - Ships same or next business day.
- Description:
- I6800 Kit: 2 engine - 1 station - w/trim
$4,689.69 $24.00 -
Sold Out, please call for ETA.
Seastar I6800-Setup Display Tool Epsk1207
Seastar
$1,078.60Seastar I6800-Setup Display Tool Epsk1207- Part Number:
- 1-EPSK1207
- Availability:
- In Stock - Ships same or next business day.
- Description:
- EST Display Setup Tool
$1,078.60 -
Sold Out, please call for ETA.
Seastar Kit Connection Master SS Sa27255
Seastar
$532.89 $473.39Seastar Kit Connection Master SS Sa27255- Part Number:
- 1-SA27255P
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Transom Support Mount - Stainless Steel - For all inboard and most outboard motor installations.Includes clamp block - clevis kit and support tube.
$532.89 $473.39 -
Seastar Morse Stop Collar 37693
Seastar
$38.79 $31.94Seastar Morse Stop Collar 37693- Part Number:
- 1-037693
- Availability:
- In Stock - Ships same or next business day.
- Cable:
- 3300
- A:
- 3/8"
- B:
- 3/8"
- C:
- 11902
- D:
- 3/32"
$38.79 $31.94 -
Seastar Mounting Hardware And Slide Plate F Hp6031
Seastar
$581.39 $442.63Seastar Mounting Hardware And Slide Plate F Hp6031- Part Number:
- 1-HP6031
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Mounting hardware & slide plate for OB cylinder
$581.39 $442.63 -
Sold Out, please call for ETA.
Seastar Neut. Safety Switch Kit Ch4400 Ca68075P
Seastar
$70.59 $53.62Seastar Neut. Safety Switch Kit Ch4400 Ca68075PFor use with CH4400 series controls.- Part Number:
- 1-CA68075P
- Availability:
- In Stock - Ships same or next business day.
- Description:
- NSS for CH4400 Controls
$70.59 $53.62 -
Sold Out, please call for ETA.
Seastar Neutral Safety Switch 300928
Seastar
$73.29 $58.12Seastar Neutral Safety Switch 300928For use with CH4400 series controls.- Part Number:
- 1-300928
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Neutral Safety Switch
$73.29 $58.12 -
Sold Out, please call for ETA.
Seastar Neutral Safety Switch Ca27090P
Seastar
$63.19 $40.57Seastar Neutral Safety Switch Ca27090P- Part Number:
- 1-CA27090P
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Optional Neutral Safety Switch
$63.19 $40.57 -
Seastar Neutral Safety Switch Mt3 & Sg 305499
Seastar
$47.69 $38.15Seastar Neutral Safety Switch Mt3 & Sg 305499- Part Number:
- 1-305499
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Neutral Safety Switch
$47.69 $38.15 -
Sold Out, please call for ETA.
Seastar Nfb Rack Black Bezel Kit Sb39544P
Seastar
$37.98Seastar Nfb Rack Black Bezel Kit Sb39544P- Part Number:
- 1-SB39544P
- Availability:
- In Stock - Ships same or next business day.
- Type:
- 90 Deg -
$37.98 -
Seastar O/B Tie Bar Kit (Side Mount Cyl) Ho5009
Seastar
$508.69 $455.76Seastar O/B Tie Bar Kit (Side Mount Cyl) Ho5009Includes bar and extension plate. For twin engines.- Part Number:
- 1-HO5009
- Availability:
- In Stock - Ships same or next business day.
- Fits:
- Yamaha (1989 to Date)
$508.69 $455.76 -
Seastar Pivot 30 Series 1/4 Dia 39890
Seastar
$67.09 $52.71Seastar Pivot 30 Series 1/4 Dia 39890- Part Number:
- 1-039890
- Availability:
- In Stock - Ships same or next business day.
- Cable:
- 3300
- A:
- 1/4"
- B:
- 43297
- C:
- 3/8"
- D:
- 0.316
- E:
- 15/16"
$67.09 $52.71 -
Seastar Pivot 40 Series 39110
Seastar
$19.69 $16.82Seastar Pivot 40 Series 39110- Part Number:
- 1-039110
- Availability:
- In Stock - Ships same or next business day.
- Cable:
- 4300
- A:
- 1/4"
- B:
- 1/2"
- C:
- 7/16"
- D:
- 9/64"
- E:
- 3/4"
$19.69 $16.82
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.