Aftermarket Parts
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Sierra Gasket-Exhaust Elbow Mp#283109 18-2849-1
Sierra
$13.39 $11.18Sierra Gasket-Exhaust Elbow Mp#283109 18-2849-1- Part Number:
- 47-28491
- Availability:
- In Stock - Ships same or next business day.
$13.39 $11.18 -
Sierra Oil Filter-Yamaha # 5Gh-13440-20 18-8700
Sierra
$10.79 $8.38Sierra Oil Filter-Yamaha # 5Gh-13440-20 18-8700Please see manufacturer application guide for complete application references.- Part Number:
- 47-8700
- Availability:
- In Stock - Ships same or next business day.
- Replaces:
- Yamaha 5GH-13440-20
$10.79 $8.38 -
Sold Out, please call for ETA.
Sierra Power Steering Cooler 99356A 2 18-2587
Sierra
$298.49 $225.59Sierra Power Steering Cooler 99356A 2 18-2587- Part Number:
- 47-2587
- Availability:
- In Stock - Ships same or next business day.
$298.49 $225.59 -
Sierra Riser Spacer-3In Marine Power Cr 18-1908
Sierra
$198.89 $162.99Sierra Riser Spacer-3In Marine Power Cr 18-1908- Part Number:
- 47-1908
- Availability:
- In Stock - Ships same or next business day.
- Application:
- Mercruiser GM V6 229 and 262 CID (models 185 and 205) - GM small block V8 - 305-350 CID (models 200 - 228 - 230 - 260 and 898) - GM big block V8 - 454 CID (models 330 - 340 and 7.4L). Use with manifold 19521 - 19531 - 19571
$198.89 $162.99 -
Sierra T Wrench Spanner Nut (Tool) 18-9803
Sierra
$122.29 $95.98Sierra T Wrench Spanner Nut (Tool) 18-9803Replaces: Mercury Mariner 91-17256Removes and installs driveshaft bearing retainer on MC-1; R-MR; Blackhawk; all Bravo and all Alpha drive units.- Part Number:
- 47-9803
- Availability:
- In Stock - Ships same or next business day.
$122.29 $95.98 -
Sierra Thermostat - Crusader# 97895 18-3649
Sierra
$27.99 $22.33Sierra Thermostat - Crusader# 97895 18-3649- Part Number:
- 47-3649
- Availability:
- In Stock - Ships same or next business day.
$27.99 $22.33 -
Sierra Wire Set MerCruiser V6 Mpi Delco 18-8829-1
Sierra
$134.19 $101.88Sierra Wire Set MerCruiser V6 Mpi Delco 18-8829-1Magnetic 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:
- 47-88291
- Availability:
- In Stock - Ships same or next business day.
- Application:
- Mercruiser - V6
$134.19 $101.88 -
Sold Out, please call for ETA.
Starbrite Hypoid 90W Lower Gear Lube Quart 27132
Starbrite
$19.19 $16.07Starbrite Hypoid 90W Lower Gear Lube Quart 27132 • For API GL-5 service• For all outboards and stern drives with mechanical shift mechanisms• Formulated with special anti-wear additives, rust and corrosion inhibitors• Will not void...- Part Number:
- 74-27132
- Availability:
- In Stock - Ships same or next business day.
- Size:
- 32 fl. oz. Bottle
$19.19 $16.07 -
Uflex Control Cable C4 T/S LL J/E 1979+
Uflex
$40.79 $39.99Uflex Control Cable C4 T/S LL J/E 1979+ Fits pre-1979 OMC, Johnson; & Evinrude applications. Featuring an 18 laywire conduit for enhanced efficiency, durability and longevity, C4 cables have brass end fittings.- Part Number:
- NW-216C4
- Availability:
- In Stock - Ships same or next business day.
$40.79 $39.99 -
Uflex Standard Rotary Tilt Helm T81Fc
Uflex
$204.69 $149.99Uflex Standard Rotary Tilt Helm T81Fc For the ultimate in driving comfort the tilt helm features a 5 position tilt range, and the Planetary Gear design delivers responsive steering with reduced rudder torque. For use with the Uflex M66 steering cable...- Part Number:
- 216-T81FC
- Availability:
- In Stock - Ships same or next business day.
- Type:
- Standard - Single cable
$204.69 $149.99 -
Attwood Marine Twlocmerc Fitb-Net Setlp 8899Lp6
Attwood Marine
$19.89 $15.99Attwood Marine Twlocmerc Fitb-Net Setlp 8899Lp6 Attwood fuel tank fittings and hose fittings are suitable for use with leaded, unleaded, ethanol blended and alcohol-blended fuels. Clamps are not included. Use thread sealant tape on all threads.LP= Low...- Part Number:
- 23-8899LP6
- Availability:
- In Stock - Ships same or next business day.
- Connector:
- Hose & TankTwist Fitting Set
w/90 Deg - Elbow (88826 & 88926) - Fits:
- -
- Material:
- -
- Thread:
- 1/4" NPT
- Hose:
- -
- OEM #:
- 30185A3 - 22831A3
$19.89 $15.99 -
Centek Thru Hull with Flapper - 2 Inch 1200301
Centek
$110.29 $82.82Centek Thru Hull with Flapper - 2 Inch 1200301- Part Number:
- 383-1200301
- Availability:
- In Stock - Ships same or next business day.
- Color:
- Black
- Hose:
- 2"
- Length:
- 4-1/2"
$110.29 $82.82 -
Groco Filter Element For Gf 375 Gf-376
Groco
$81.00 $56.42Groco Filter Element For Gf 375 Gf-376Separate dirt and water from fuel. 2-5 micron filtration. Use with gasoline or diesel fuel. Marine UL listed. Pressure tested bronze castings. Piping not disturbed when changing element. Maximum flow is 3-1/2 GPM...- Part Number:
- 34-GF376
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Filter Element
- Fits:
- GF375
$81.00 $56.42 -
Martyr Anodes 1 1/2 Zinc Shaft Anode Cmx07
Martyr Anodes
$18.79 $15.99Martyr Anodes 1 1/2 Zinc Shaft Anode Cmx07 Aluminum for salt and brackish waterMagnesium for fresh waterZinc for salt water- Part Number:
- 194-CMX07
- Availability:
- In Stock - Ships same or next business day.
- ID:
- 1-1/2"
- OD:
- 2-1/2"
- Length:
- 2-1/2"
- Material:
- Zinc
$18.79 $15.99 -
Martyr Anodes 5 1/8 Zinc Rudder Anode Cmr05
Martyr Anodes
$47.19 $31.99Martyr Anodes 5 1/8 Zinc Rudder Anode Cmr05 Zinc: For use in salt waterAluminum: For use in brackish waterMagnesium: For use in fresh water- Part Number:
- 194-CMR05
- Availability:
- In Stock - Ships same or next business day.
- Size:
- 5-1/8" dia. x 7/8
- Material:
- Zinc
$47.19 $31.99 -
Special Order! See availaility for details
Martyr Anodes 70 Mm Max Prop Nut Cmmp70Rz
Martyr Anodes
$20.69 $13.99Martyr Anodes 70 Mm Max Prop Nut Cmmp70Rz Comes with cast-in insert. Zinc for saltwater use.- Part Number:
- 194-CMMP70RZ
- Availability:
- In Stock - Ships same or next business day.
- Size:
- 70 mm
- OD:
- 2-5/8"
- Material:
- Zinc
$20.69 $13.99 -
NGK Spark Plugs 7397 Spark Plug Iridium 7397
NGK Spark Plugs
$17.29 $9.36NGK Spark Plugs 7397 Spark Plug Iridium 7397 Designed specifically for the performance enthusiast. Iridium IX offers extreme ignitability, improved throttle response and superior anti-fouling. Fine-tipped iridium-center electrode ensures high...- Part Number:
- 41-TR5IX
- Availability:
- In Stock - Ships same or next business day.
- Model #:
- 7397
- What's in the Box:
- (1) Spark Plug
$17.29 $9.36 -
NGK Spark Plugs Br9Es Solid Spark Plug 3194
NGK Spark Plugs
$5.89 $4.06NGK 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
$5.89 $4.06 -
Perko 1-1/4 In-Line Valve 0456Dp7
Perko
$195.79 $129.99Perko 1-1/4 In-Line Valve 0456Dp7 Simple as connecting a garden hose! Flush your boat engine safely and easily. Plastic construction, stainless steel spring. Transparent body allows for visual inspection of water flow. Check valve automatically shuts...- Part Number:
- 9-0456DP7
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Valve
- Hose:
- 1-1/4"
$195.79 $129.99 -
Sold Out, please call for ETA.
Racor Check Ball with Seal For 900/1000 Rk 11028B
Racor
$38.29 $27.99Racor Check Ball with Seal For 900/1000 Rk 11028B- Part Number:
- 62-RK11028B
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Replacement Check Ball Kit
- Fits:
- 900/1000FG & MA Series
$38.29 $27.99
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.