Aftermarket Parts
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NGK Spark Plugs 6499 Spark Plug LFR4AE Mercury 8m0157328
NGK Spark Plugs
$18.04 $9.99NGK Spark Plugs 6499 Spark Plug LFR4AE Mercury 8m0157328 Chosen by more automotive, and marine engine manufacturers than any other. The unique copper core and exclusive electrode design assure fast starts, peak performance and long life. •?Triple...- Part Number:
- 41-6499
- Availability:
- In Stock - Ships same or next business day.
- Model #:
- 6499
- What's in the Box:
- (1) Spark Plug
$18.04 $9.99 -
NGK Spark Plugs Br9Es Solid Spark Plug 3194
NGK Spark Plugs
$6.62 $4.10NGK Spark Plugs Br9Es Solid Spark Plug 3194Chosen by more automotive, and marine engine manufacturers than any other. The unique copper core and exclusive electrode design assure fast starts, peak performance and long life.•?Triple gasket sealing process...- Part Number:
- 41-3194
- Availability:
- In Stock - Ships same or next business day.
- Model #:
- BR9ES Solid
- Pack:
- 4
- Pkg.:
- Boxed
$6.62 $4.10 -
Seachoice Anode Kit Mercruiser Bravo2 II (1989-Present) 3 III (1989-2003) Magnesium Fresh Water only 95071
Seachoice
$83.81 $66.89Seachoice Bravo II/III Kit - Mg Freshwat 50-95071 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:
- 50-95071
- Availability:
- In Stock - Ships same or next business day.
- Fits:
- Bravo II 1989-Pres. Bravo III 1989-2003
- Material:
- Magnesium
$83.81 $66.89 -
Sherwood Pump Pump-Engine-Kohler G910P
Sherwood Pump
$481.39 $357.21Sherwood Pump Pump-Engine-Kohler G910P Impeller Kit: 9000K- Part Number:
- 762-G910P
- Availability:
- In Stock - Ships same or next business day.
- Engine:
- Ford & Kohler
- Pulley:
- w/o Pulley
- Inlet:
- 3/8" NPT
- Outlet:
- 3/8" NPT
$481.39 $357.21 -
Sierra 46-96148A8/46-42579A3 Kit/Base 18-3319
Sierra
$80.99 $60.43Sierra 46-96148A8/46-42579A3 Kit/Base 18-3319- Part Number:
- 47-3319
- Availability:
- In Stock - Ships same or next business day.
- Replaces:
- 46-42579A4
$80.99 $60.43 -
Sierra Filter-H2O Separator Vp-Om Sx-Efi 21M 18-7789
Sierra
$13.59 $10.06Sierra Filter-H2O Separator Vp-Om Sx-Efi 21M 18-7789Clear Bowls: Use for outboard and above deck installations.USCG regulations require the use of flame resistant Metal bowls below deck.- Part Number:
- 47-7789
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Element
- Replaces:
- Volvo SX/EFI - Replaces: 3851218-2 - 3852413 - 3862228. Cobra EFI - Replaces: OMC 502906
$13.59 $10.06 -
Sierra Filter-Oil Honda Bf75-Bf225 18-7909
Sierra
$11.59 $9.33Sierra Filter-Oil Honda Bf75-Bf225 18-7909Please see manufacturer application guide for complete application references.- Part Number:
- 47-7909
- Availability:
- In Stock - Ships same or next business day.
- Replaces:
- Honda: 15400-P0H-305PE - 15400-POH-305 - 15400-ZJI-004 - 15400-PLM-A01PE
$11.59 $9.33 -
Sierra Filter-Oil Seadoo Brp420956741 18-8880
Sierra
$16.79 $12.80Sierra Filter-Oil Seadoo Brp420956741 18-8880- Part Number:
- 47-8880
- Availability:
- In Stock - Ships same or next business day.
- Application:
- SeaDoo & 4 Stroke
- Replaces:
- BRP: 420956741 - Yamaha: 6M6-8183E00-00
$16.79 $12.80 -
Sierra Gasket-Head GM 5.0L-5.7L 18-3876
Sierra
$49.59 $34.46Sierra Gasket-Head GM 5.0L-5.7L 18-3876- Part Number:
- 47-3876
- Availability:
- In Stock - Ships same or next business day.
$49.59 $34.46 -
Sierra Inlet Valve MerCruiser #1395-879194011 18-7062
Sierra
$14.69 $10.35Sierra Inlet Valve MerCruiser #1395-879194011 18-7062- Part Number:
- 47-7062
- Availability:
- In Stock - Ships same or next business day.
$14.69 $10.35 -
Sierra Oil Drain Kit 1/2 -20 Thread 18-7891
Sierra
$149.59 $114.13Sierra Oil Drain Kit 1/2 -20 Thread 18-7891Total length 42 inches.- Part Number:
- 47-7891
- Availability:
- In Stock - Ships same or next business day.
- Description:
- For GM - Chrysler & Most Ford oil pans - 1/2" 20 Threads
$149.59 $114.13 -
Sierra Water Shutter-Exhaust MerCruiser #60930 18-2727
Sierra
$41.39 $33.37Sierra Water Shutter-Exhaust MerCruiser #60930 18-2727- Part Number:
- 47-2727
- Availability:
- In Stock - Ships same or next business day.
- Replaces:
- 60930
$41.39 $33.37 -
Sierra Wire-9In Hi Perf Plug-Om582365 18-5231-1
Sierra
$22.39 $16.99Sierra Wire-9In Hi Perf Plug-Om582365 18-5231-1Magnetic Suppression Core manufactured for your specific application.Kevlar® core for maximum durability and long lifeDurable stainless steel wound conductor for maximum horsepower and engine...- Part Number:
- 47-52311
- Availability:
- In Stock - Ships same or next business day.
- Application:
- Johnson/Evinrude - 9" wire
$22.39 $16.99 -
CRC Marine Formula 6-56 9oz 6006
CRC
$11.79 $9.99CRC Marine Formula 6-56 9oz 6006 Drives out moisture to help start wet engines. Lubricates and protects against saltwater corrosion. Loosens rusted parts.- Part Number:
- 77-06006
- Availability:
- In Stock - Ships same or next business day.
- Size:
- 9 oz. Spray
$11.79 $9.99 -
Martyr Anodes Sl Shaft Anode Cmx-4 (1-1/8 ) Cmx04Al
Martyr Anodes
$21.59 $10.20Martyr Anodes Sl Shaft Anode Cmx-4 (1-1/8 ) Cmx04Al Aluminum for salt and brackish waterMagnesium for fresh waterZinc for salt water- Part Number:
- 194-CMX04AL
- Availability:
- In Stock - Ships same or next business day.
- ID:
- 1-1/8"
- OD:
- 2-1/8"
- Length:
- 2-1/8"
- Material:
- Aluminum
$21.59 $10.20 -
Sold Out, please call for ETA.
Racor Element-Replacement 900 Turbine 10M 2040N-10
Racor
$13.99 $1.30Racor Element-Replacement 900 Turbine 10M 2040N-10Waterproof, rustproof, dirtproof. Engineered to repel water and remove solid contaminants before they can damage precision engine components. Racor Aquabloc elements are available in different lengths for...- Part Number:
- 62-2040N10
- Availability:
- In Stock - Ships same or next business day.
- Micron:
- 10
- End Cap:
- Blue
- Fits:
- 900
$13.99 $1.30 -
Sea-Dog Line Tiller Rope Spring-4 Inch 2/Cd 091814-1
SEA-DOG LINE
$12.00 $9.91Sea-Dog Line Tiller Rope Spring-4 Inch 2/Cd 091814-1- Part Number:
- 354-0918141
- Availability:
- In Stock - Ships same or next business day.
- Length:
- 5"
- Compressed:
- 6"
- Pack:
- 2
$12.00 $9.91 -
Seastar Control Cable 3600 Merc TFXtreme CCX630
Seastar
$95.89 $89.99Seastar Control Cable 3600 Merc TFXtreme CCX630 Fits Mercury Sport Jets. Cable has a 10-32 threaded terminal at control end and Mercury type engine end. The splined, coated core minimizes lost motion and offers maximum smoothness for complex and/or long...- Part Number:
- NW-1CCX630
- Availability:
- In Stock - Ships same or next business day.
$95.89 $89.99 -
Seastar OMC 400 Control Cable CC170
Seastar
$49.49 $41.25Seastar OMC 400 Control Cable CC170 Stainless steel and brass fittings with stainless steel core. Fits pre-1979 OMC/Johnson/Evinrude w/BRP/OMC controls.- Part Number:
- NW-1CC170
- Availability:
- In Stock - Ships same or next business day.
$49.49 $41.25 -
Sold Out, please call for ETA.
Seastar Solutions Stainless Steel Replacement Control Lever Handle 50010 Ca69060P
Seastar
$121.69 $93.18Seastar Solutions Stainless Steel Replacement Control Lever Handle 50010 Ca69060P Replacement Stainless Steel Lever fits Teleflex CH5600 SLT and Morse Twin SR controls onlyFEATURES Material: Stainless Steel- Part Number:
- 1-CA69060P
- Availability:
- In Stock - Ships same or next business day.
- Description:
- SS Replacement Lever
$121.69 $93.18
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.