Aftermarket Parts
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Seastar Safe-T II No Feedback Steering Package SS132
Seastar
$314.99Seastar Safe-T II No Feedback Steering Package SS132 Rugged, compact, lightweight, and with Seastar Solutions No FeedBack technology, this ultra-smooth 3-turn system takes the work out of steering...- Part Number:
- NW-1SS132K
- Availability:
- In Stock - Ships same or next business day.
$314.99 -
Sierra Filter-Oil Honda#15400-Pfb-014 18-7913
Sierra
$12.49 $9.94Sierra Filter-Oil Honda#15400-Pfb-014 18-7913Please see manufacturer application guide for complete application references.- Part Number:
- 47-7913
- Availability:
- In Stock - Ships same or next business day.
- Replaces:
- Honda: 15400-PFB-014
Mercury: 35-822626Q1 - Q03
$12.49 $9.94 -
Sierra Filterh2O Sep-Yamaha 10M Lg 18-7866
Sierra
$25.89 $21.91Sierra Filterh2O Sep-Yamaha 10M Lg 18-7866Sierra fuel water separators remove over 98.8% of emulsified water from your gasoline. Sierra's 10 micron filters are over 90% efficient at removing...- Part Number:
- 47-7866
- Availability:
- In Stock - Ships same or next business day.
- Type:
- High Capacity - 6"
- Replaces:
- Yamaha - MAR-FUELF-IL-TR
$25.89 $21.91 -
Sierra Thermostat Kit-160Deg MerCruiser #807252Q 5 18-3647
Sierra
$44.79 $32.45Sierra Thermostat Kit-160Deg MerCruiser #807252Q 5 18-3647- Part Number:
- 47-3647
- Availability:
- In Stock - Ships same or next business day.
- Replaces:
- 807252Q5
$44.79 $32.45 -
Uflex Fitting-Bulkhead Dual Hyd Hose R8B
Uflex
$93.89 $67.79Uflex Fitting-Bulkhead Dual Hyd Hose R8B For use with preassembled hoses to provide a waterproof thru-bulkhead connection.- Part Number:
- 216-R8B
- Availability:
- In Stock - Ships same or next business day.
- Color:
- Black
- Size:
- 4.2" x 3.5"
$93.89 $67.79 -
Sierra Gimbal Bearing-Omc/Vp#3853807 18-2100
Sierra
$90.19 $72.99Sierra Gimbal Bearing-Omc/Vp#3853807 18-2100OMC Sterndrive/CobraOMC Volvo- Part Number:
- 47-2100
- Availability:
- In Stock - Ships same or next business day.
- Replaces:
- Merc 30-60794A4
Volvo 3853807
OMC 983937
$90.19 $72.99 -
Racor Bowl Kit-Clr 900/3Ma-1000/3Ma Rk 11-1606-1
Racor
$159.39 $83.59Racor Bowl Kit-Clr 900/3Ma-1000/3Ma Rk 11-1606-1- Part Number:
- 62-RK1116061
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Clear Bowl with Water Sensor Plug
- Fits:
- 500/900/1000 Series
$159.39 $83.59 -
Seachoice Exhaust Gard Cover-3 (2/Card 28351
Seachoice
$32.73 $24.99Seachoice Exhaust Gard Cover-3 (2/Card 28351 Black rubber with adjustable stainless steel clampFlap valve prevents following seas from entering exhaust outlet when stopping or moving slowlyAll...- Part Number:
- 50-28351
- Availability:
- In Stock - Ships same or next business day.
- Size:
- 3"
- Pack:
- 1 pr.
$32.73 $24.99 -
Seastar seal kit with wrench HS5157
Seastar
$218.49 $188.99Replacement front seal kit for SeaStar pivot / front mount cylinders Kit contains: (2) Seal Glands, Pin Wrench, Seal Gland Assembly Guide Tool- Part Number:
- 1-HS5157
- Availability:
- In Stock - Ships same or next business day.
$218.49 $188.99 -
Sierra Drain Plug W-Magnet Honda-MerCruiser 18-2375
Sierra
$10.19 $7.68Sierra Drain Plug W-Magnet Honda-MerCruiser 18-2375- Part Number:
- 47-2375
- Availability:
- In Stock - Ships same or next business day.
- Fits:
- Mercruiser Alpha MR/Gen II lower units. OEM # 10-14834A1 - 22-67892A1
- Drain Screw:
- Magnetic Drain Screw
$10.19 $7.68 -
Jabsco Impeller Neoprene 189480001P
Jabsco
$86.89 $54.53Jabsco Impeller Neoprene 189480001P- Part Number:
- 6-189480001P
- Availability:
- In Stock - Ships same or next business day.
- Fig.:
- X
- Description:
- Impeller
- Type:
- Neoprene
- Blades:
- 12
- Size:
- 2-9/16"
- Depth:
- 1-5/8"
$86.89 $54.53 -
Martyr Anodes Anode Shaft 1.25 Aluminum Cmx05Al
Martyr Anodes
$14.09 $10.69Martyr Anodes Anode Shaft 1.25 Aluminum Cmx05Al Aluminum for salt and brackish waterMagnesium for fresh waterZinc for salt water- Part Number:
- 194-CMX05AL
- Availability:
- In Stock - Ships same or next business day.
- ID:
- 1-1/4"
- OD:
- 2-1/2"
- Length:
- 2-1/2"
- Material:
- Aluminum
$14.09 $10.69 -
NGK Spark Plugs Br10Es Spark Plug 4832
NGK Spark Plugs
$6.69 $5.36NGK Spark Plugs Br10Es Spark Plug 4832 Chosen by more automotive, and marine engine manufacturers than any other. The unique copper core and exclusive electrode design assure fast starts, peak...- Part Number:
- 41-BR10ES
- Availability:
- In Stock - Ships same or next business day.
- Model #:
- 4832
- Pkg.:
- Boxed
- What's in the Box:
- (1) Spark Plug
$6.69 $5.36 -
Seastar Quad Ring .210 Hyd Helm 20/Pk Hs6037
Seastar
$25.39 $21.68Seastar Quad Ring .210 Hyd Helm 20/Pk Hs6037- Part Number:
- 1-HS6037
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Quad Ring #210
- Pack:
- 20
$25.39 $21.68 -
Sold Out, please call for ETA.
Sierra Carb Repair Kit MerCruiser #1395-9650 18-7226
Sierra
$107.59 $69.99Sierra Carb Repair Kit MerCruiser #1395-9650 18-7226- Part Number:
- 47-7226
- Availability:
- In Stock - Ships same or next business day.
- OEM #:
- Mercruiser 1395-9650
$107.59 $69.99 -
Sierra Eclipse 3 Tachometer 0-4000Rpm 68398P
Sierra
$189.69 $156.18Sierra Eclipse 3 Tachometer 0-4000Rpm 68398PSmart white and blue graphics on a black dial background; these very low profile bezels follow the curve of the lense to eliminate water trapping. Design...- Part Number:
- 11-68398P
- Availability:
- In Stock - Ships same or next business day.
- Size:
- 3"
- Type:
- Tachometer - Diesel Alt
- Dial Range:
- 0-4000 rpm
- Sender Code:
- Alternator
$189.69 $156.18 -
Sierra Fuel Connector-Suzuki #65750-94404 18-80419
Sierra
$24.99 $17.64Sierra Fuel Connector-Suzuki #65750-94404 18-80419- Part Number:
- 47-80419
- Availability:
- In Stock - Ships same or next business day.
- Connector:
- Hose - Female
- Fits:
- Suzuki
- Application:
- Fits - DF25-DF140. Mates with 18-80425
- Replaces:
- 65750-87J10 - 65750-87J11
- Thread:
- 5/16" NPT
- Hose:
- -
$24.99 $17.64 -
Sierra Head Gasket Set-GM 5.7L Vortec 18-1254
Sierra
$301.69 $194.99Sierra Head Gasket Set-GM 5.7L Vortec 18-1254- Part Number:
- 47-1254
- Availability:
- In Stock - Ships same or next business day.
$301.69 $194.99 -
Sierra MerCruiser Carb Kit 18-7098-1
Sierra
$92.99 $64.99Sierra MerCruiser Carb Kit 18-7098-1- Part Number:
- 47-70981
- Availability:
- In Stock - Ships same or next business day.
- OEM #:
- Mercruiser 3302-804844002
$92.99 $64.99 -
Sierra Premium Marine Spark Plug Wire Set Mc 5.0-5.7-6.2L V8 Mpi 18-8828-1
Sierra
$156.79 $113.99Sierra Wire Set Mc5.0-5.7-6.2L V8 Mpi 18-8828-1Magnetic Suppression Core manufactured for your specific application.Kevlar® core for maximum durability and long lifeDurable stainless steel wound...- Part Number:
- 47-88281
- Availability:
- In Stock - Ships same or next business day.
- Application:
- Mercruiser - 5.0L MIE MPI 8 cylinder - Delco HEI ignition
$156.79 $113.99
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.