Aftermarket Parts
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Sierra Rotor Del-Voy V8 Mc808484--1 18-5405
Sierra
$21.59 $15.26Sierra Rotor Del-Voy V8 Mc808484--1 18-5405- Part Number:
- 47-5405
- Availability:
- In Stock - Ships same or next business day.
$21.59 $15.26 -
Sierra Volvo/OMC Sx Transom Seal Kit 18-2772-1
Sierra
$270.29 $184.83Sierra Volvo/OMC Sx Transom Seal Kit 18-2772-1- Part Number:
- 47-27721
- Availability:
- In Stock - Ships same or next business day.
- Contains:
- Gimbal Bearing 2100 -
Bellows 2765 & 1074 - Seal 2996 - Hose Clamp - Application:
- OMC Sterndrive/Cobra
& Volvo SX cobra drives w/cone clutch
$270.29 $184.83 -
Sierra Wire 6In Plug Evinrude/Johnson 18-8816-1
Sierra
$23.89 $16.75Sierra Wire 6In Plug Evinrude/Johnson 18-8816-1Magnetic 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:
- 47-88161
- Availability:
- In Stock - Ships same or next business day.
- Application:
- Johnson/Evinrude - 6" wire
$23.89 $16.75 -
Sierra Wire Set GM 4.3L V6 Electronic 18-8810-1
Sierra
$70.29 $53.88Sierra Wire Set GM 4.3L V6 Electronic 18-8810-1Magnetic 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:
- 47-88101
- Availability:
- In Stock - Ships same or next business day.
- Application:
- Flagship - Indmar - Marine Power & Mastercraft - 262 - 4.3L EST - EFI 6 cylinder. Mercruiser - 262 - 4.3L - & 4.3XL & EFI (TBI) - V6 - Thunderbolt ignition
$70.29 $53.88 -
Sierra Wire-Plug Mag MerCruiser #84-881908T 18-28083
Sierra
$27.29 $22.44Sierra Wire-Plug Mag MerCruiser #84-881908T 18-28083- Part Number:
- 47-28083
- Availability:
- In Stock - Ships same or next business day.
- Application:
- V6 EFI/DFI/DTS
- Replaces:
- 84-881908T (1 wire)
$27.29 $22.44 -
Starbrite Star Tron Gas Additive 32 Oz 93032
Starbrite
$52.99 $35.94Starbrite Star Tron Gas Additive 32 Oz 93032 • Cures & prevents ethanol fuel problems• Makes any engine run more smoothly, start more easily• Eliminates & prevents gum, varnish and carbon deposits• Stabilizes fuel, helps...- Part Number:
- 74-93032
- Availability:
- In Stock - Ships same or next business day.
- Size:
- 32 oz.
- Treats:
- 512 gal.
$52.99 $35.94 -
Sold Out, please call for ETA.
Uflex Fitting-Boss For Uc128Obf Boss Fitting
Uflex
$45.45Uflex Fitting-Boss For Uc128Obf Boss Fitting- Part Number:
- 216-BOSSFITTING
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Boss Fitting 3/8"(9.5mm)
- Fits:
- all cylinders except UC94-OBF with serial# prior to 30 1156 000001
$45.45 -
Attwood Marine 90 Deg Fl Tank Vent with Black Cap 1670-1
Attwood Marine
$20.29 $12.41Attwood Marine 90 Deg Fl Tank Vent with Black Cap 1670-1 These vents help prevent water from entering the fuel tank, yet allow air to vent freely, during normal sea conditions and washdowns. This eliminates the need for an anti-siphon loop in the vent...- Part Number:
- 23-16701
- Availability:
- In Stock - Ships same or next business day.
- Type:
- Black
- Hose:
- 5/8" I.D.
- Max Hull Thickness:
- 9/16"
- Hole:
- 3/4"
- Pkg.:
- Bulk
$20.29 $12.41 -
Centek 4.00 Thru Hull (Black With Fla 1200325
Centek
$209.79 $153.64Centek 4.00 Thru Hull (Black With Fla 1200325- Part Number:
- 383-1200325
- Availability:
- In Stock - Ships same or next business day.
- Color:
- Black
- Hose:
- 4"
- Length:
- 7-3/4"
$209.79 $153.64 -
Centek 6.00 Vernalift Side In/Top Out 1500092
Centek
$1,218.29 $873.41Centek 6.00 Vernalift Side In/Top Out 1500092Extremely effective in reducing engine exhaust noise and preventing water from returning to the engine. High strength design provides a significant safety margin over other existing fiberglass lift mufflers...- Part Number:
- 383-1500092
- Availability:
- In Stock - Ships same or next business day.
- A1:
- 6
- A2:
- 6
- B:
- 5
- D:
- 16.17
- E:
- 8.75
- F:
- 4
$1,218.29 $873.41 -
Centek Vernalift 3" x 3 Side In/Top Out 1500232
Centek
$473.59 $344.27Centek Vernalift 3" x 3 Side In/Top Out 1500232Extremely effective in reducing engine exhaust noise and preventing water from returning to the engine. High strength design provides a significant safety margin over other existing fiberglass lift mufflers...- Part Number:
- 383-1500232
- Availability:
- In Stock - Ships same or next business day.
- A1:
- 3
- A2:
- 3
- B:
- 3
- D:
- 10.06
- E:
- 4.75
- F:
- 2.25
$473.59 $344.27 -
Martyr Anodes Anode Aluminum Alpha-Plate Gen II Cm821629Ca
Martyr Anodes
$29.09 $16.82Martyr Anodes Anode Aluminum Alpha-Plate Gen II Cm821629CaAluminum for salt and brackish waterMagnesium for fresh waterZinc for salt water- Part Number:
- 194-CM821629CA
- Availability:
- In Stock - Ships same or next business day.
- Description:
- Alpha I - Gen. II
- Material:
- Aluminum
$29.09 $16.82 -
Martyr Anodes Anode-Yamaha 4T 40-60 Hp Ob Aluminum Cmy4060Kita
Martyr Anodes
$34.49 $24.16Martyr Anodes Anode-Yamaha 4T 40-60 Hp Ob Aluminum Cmy4060Kita Comes complete with 3 anodes, hardware and installation instructions. CMY4060KIT Yamaha 4T 40-60HP Anode Kit- Includes: CM6E04525111 (3), CM67C4525100 (1), CM67C4537100 (1)CMY6090KIT Yamaha...- Part Number:
- 194-CMY4060KITA
- Availability:
- In Stock - Ships same or next business day.
- Description:
- 40-60 HP Outboards
- Material:
- Aluminum
$34.49 $24.16 -
Martyr Anodes Zinc Med Tear Drop Cmt21
Martyr Anodes
$21.09 $12.44Martyr Anodes Zinc Med Tear Drop Cmt21Zinc: For use in salt waterAluminum: For use in brackish waterMagnesium: For use in fresh water- Part Number:
- 194-CMT21
- Availability:
- In Stock - Ships same or next business day.
- Size:
- 5-1/4"L x 2"W x 1"H
- Hole:
- 1-5/8"
- Material:
- Zinc
$21.09 $12.44 -
NGK Spark Plugs B7Hs Spark Plug 5110
NGK Spark Plugs
$6.49 $4.10NGK Spark Plugs B7Hs Spark Plug 5110 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 gasket sealing...- Part Number:
- 41-5110
- Availability:
- In Stock - Ships same or next business day.
- Model #:
- B7HS
- Pkg.:
- Boxed
$6.49 $4.10 -
Permatex Dielectric Tune-Up Grease 3oz 22058
Permatex
$17.89 $15.99Permatex Dielectric Tune-Up Grease 3oz 22058 Protects electrical connections and wiring from salt, dirt and corrosion. Extends the life of bulb sockets. Prevents voltage leakage around any electrical connection. Also prevents spark plugs from fusing to...- Part Number:
- 180-22058
- Availability:
- In Stock - Ships same or next business day.
- Size:
- 3 oz. tube
$17.89 $15.99 -
Racor Element-Replacement 500 Turbine 2M 2010Sm-Or
Racor
$17.69 $13.38Racor Element-Replacement 500 Turbine 2M 2010Sm-OrWaterproof, 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:
- 62-2010SMOR
- Availability:
- In Stock - Ships same or next business day.
- Micron:
- 2
- End Cap:
- Brown
- Fits:
- 500
$17.69 $13.38 -
Racor Filter with Head-Gas Metal Bowl 320R-Rac-02
Racor
$212.19 $178.62Racor Filter with Head-Gas Metal Bowl 320R-Rac-02 Spin-On series filters these filters are designed for high performance applications, and with flow rates between 30 and 120 GPH your engine will perform better than ever with clean, waterfree fuel. These...- Part Number:
- 62-320RRAC02
- Availability:
- In Stock - Ships same or next business day.
- GPH:
- 60
- Micron:
- 10
- Ports:
- 1/4"-18 NPTF
- Bowl:
- Metal
- Application:
- Inboard/Outboard
- Size:
- 4" D x 4" W x 9.3" H
$212.19 $178.62 -
Seachoice Bravo One Kit - Al 50-95041
Seachoice
$76.11 $61.19Seachoice Bravo One Kit - Al 50-95041 Cadmium free, environmentally friendly. • Aluminum: For salt and brackish waterConform to: Mil-Spec A-24779(SH) • Magnesium: For freshwater onlyConform to: Mil-Spec A-21412(SH)...- Part Number:
- 50-95041
- Availability:
- In Stock - Ships same or next business day.
- Material:
- Aluminum
$76.11 $61.19 -
Seachoice Fuel Pump Gold-Flokt 5.5-4Psi 12V 20301
Seachoice
$269.84 $170.12Seachoice Fuel Pump Gold-Flokt 5.5-4Psi 12V 20301 This rugged, lightweight, solid state fuel pump provides the high output performance required by heavy duty construction, agricultural, industrial, marine or military equipment in addition to the power...- Part Number:
- 50-20301
- Availability:
- In Stock - Ships same or next business day.
- PSI:
- 5.5 - 4
- GPH:
- 34
- OEM #:
- 40131E
- Volts:
- 12
$269.84 $170.12
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.