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Aftermarket Parts

Aftermarket Parts

  • Seloc Publishing Manual MerCruiser 64-91 Gas & Sterndrive 3200

    Seloc Publishing Manual MerCruiser 64-91 Gas & Sterndrive 3200

    Seloc Publishing

    $61.49 $55.99
    Seloc Publishing Manual MerCruiser 64-91 Gas & Sterndrive 3200The only marine tune-up manuals to be certified by the engine manufacturers as accurate and complete. Seloc uses easy to understand, step-by-step, illustrated procedures for the complete...
    Part Number:
    230-3200
    Availability:
    In Stock - Ships same or next business day.
    Type:
    Mercruiser Sterndrives
    Description:
    All Gas Engines & Sterndrives
    Year:
    1964-1991
    $61.49 $55.99
  • Sierra 09-812B Impeller 18-3306

    Sierra 09-812B Impeller 18-3306

    Sierra

    $79.09 $42.99
    Sierra 09-812B Impeller 18-330612 fin Neoprene - spline
    Part Number:
    47-3306
    Availability:
    In Stock - Ships same or next business day.
    Replaces:
    09-812B
    Depth:
    1-15/16"
    Dia.:
    2-1/4"
    Shaft:
    3/4" Dia.
    $79.09 $42.99
  • Sierra Amega Gauge-Water Temp I/O-I/B 57904P

    Sierra Amega Gauge-Water Temp I/O-I/B 57904P

    Sierra

    $76.89 $59.99
    Sierra Amega Gauge-Water Temp I/O-I/B 57904PSmart white and red graphics on a black dial background; these very low profile bezels follow the curve of the lenses to eliminate water trapping. Design with domed glass sheds water and resists scratching...
    Part Number:
    11-57904P
    Availability:
    In Stock - Ships same or next business day.
    Size:
    2"
    Type:
    Water Temp Gauge - Inboard/Outboard
    Dial Range:
    120 Deg --240 Deg -F
    Sender Code:
    D
    $76.89 $59.99
  • Sierra Bearing-Gimbal Mc-Vp 388555 18-21001

    Sierra Bearing-Gimbal Mc-Vp 388555 18-21001

    Sierra

    $124.89 $74.99
    Sierra Bearing-Gimbal Mc-Vp 388555 18-21001Refer to the Sierra catalog for complete application information.
    Part Number:
    47-21001
    Availability:
    In Stock - Ships same or next business day.
    Fits:
    Mercruiser Stern Drives
    Replaces:
    30-879194A02
    $124.89 $74.99
  • Sierra Belt MerCruiser 57-69143Q OMC 311606 18-15400

    Sierra Belt MerCruiser 57-69143Q OMC 311606 18-15400

    Sierra

    $34.59 $23.16
    Sierra Belt MerCruiser 57-69143Q OMC 311606 18-15400High strength synthetic cords resist shockload failure.The compression section is a special rubber compound that assures smooth and even transfer of load forces to the cords.Cogs are molded to precise...
    Part Number:
    47-15400
    Availability:
    In Stock - Ships same or next business day.
    Eff. Length:
    40"
    Top Width:
    29/64"
    OEM #:
    57-32850 - 57-69143T - OMC 311606
    $34.59 $23.16
  • Sierra Carburetor Rochester 4 Bbl 18-7615-1

    Sierra Carburetor Rochester 4 Bbl 18-7615-1

    Sierra

    $935.49 $709.99
    Sierra Carburetor Rochester 4 Bbl 18-7615-1Sierra's marine aftermarket for high quality remanufactured carburetors. With carefully selected cores that are brought back to exacting OEM specifications. Each unit is flow tested to ensure proper operation...
    Part Number:
    47-76151
    Availability:
    In Stock - Ships same or next business day.
    Mfg:
    Rochester
    Mfg #:
    17057298 - 17059280 -
    17059288 - 17080561 -
    17085013
    Type:
    R4/4MV
    OEM:
    Mercruiser/OMC
    OEM #:
    1347-804624R02/985822
    Application:
    MCM 250/255/260/5.7L (1975-1991) -
    OMC 3.8L/4.3L/5.0L/5.7L/305/350
    & 454 (1977-1989) - 300MR/TRS
    $935.49 $709.99
  • Sierra Elbow Exh-Omc/Vp#3855270-9 18-1909-1

    Sierra Elbow Exh-Omc/Vp#3855270-9 18-1909-1

    Sierra

    $384.49 $299.99
    Sierra Elbow Exh-Omc/Vp#3855270-9 18-1909-1Sierra manifolds are painted; packaged and leak tested.
    Part Number:
    47-19091
    Availability:
    In Stock - Ships same or next business day.
    Replaces:
    OMC Sterndrive/Cobra 913784 - 3855270 - 3850456 - 3857944 and Volvo 3855270-9 - 3857944-7 - 3863061
    $384.49 $299.99
  • Sierra Filter oil Vp 834337 18-7884

    Sierra Filter oil Vp 834337 18-7884

    Sierra

    $17.99 $14.18
    Sierra Filteroil Vp 834337 18-7884Epoxy coating on all canisters for corrosion resistanceHeavy-wall steel canister for further corrosion protectionHigh-efficiency filter media that meets or exceeds the OE's filtrationBacked by Sierra's industry leading...
    Part Number:
    47-7884
    Availability:
    In Stock - Ships same or next business day.
    Application:
    3/4" x 16 NPT Thread
    Replaces:
    Universal: 299381 - Volvo 834337
    Note:
    1
    $17.99 $14.18
  • Sierra Filter-Water Separator OMC 10M 18-7946

    Sierra Filter-Water Separator OMC 10M 18-7946

    Sierra

    $13.99 $12.99
    Sierra Filter-Water Separator OMC 10M 18-7946Sierra fuel water separators remove over 98.8% of emulsified water from your gasoline. All filters flow @ 90 GPH to feed even the hungriest motor.Clear Bowls: Use for outboard and above deck installations...
    Part Number:
    47-7946
    Availability:
    In Stock - Ships same or next business day.
    Type:
    10 MIcron
    Replaces:
    OMC 502905
    $13.99 $12.99
  • Sierra Hourmeter Small Engine 56968P

    Sierra Hourmeter Small Engine 56968P

    Sierra

    $59.19 $51.99
    Sierra Hourmeter Small Engine 56968PAllows hour monitoring for even the smallest gasoline motors. Great for 2 or 4 stroke. No power or ground required. Water and shock proof. Automatically turns on and off with the engine. Displays up to 9999 hours. 10...
    Part Number:
    47-56968P
    Availability:
    In Stock - Ships same or next business day.
    $59.19 $51.99
  • Sierra Wire Set GM 4.3L V6 Electronic 18-8810-1

    Sierra Wire Set GM 4.3L V6 Electronic 18-8810-1

    Sierra

    $61.79 $49.99
    Sierra 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
    $61.79 $49.99
  • STA-BIL Gas Stabilizer 32oz 22214

    STA-BIL Gas Stabilizer 32oz 22214

    STA-BIL

    $24.99 $17.32
    STA-BIL Gas Stabilizer 32oz 22214   Keeps fuel fresh for quick, easy starts after storage Removes water according to OEM specs to prevent corrosion Cleans carburetors and fuel injectors Protects engine from gum, varnish, rust, and corrosion ...
    Part Number:
    269-22214
    Availability:
    In Stock - Ships same or next business day.
    Size:
    32 oz.
    Treats:
    80 gal.
    $24.99 $17.32
  • Starbrite Adaptor Nissan Yamaha Tohatsu and Honda Lower Unit 28401

    Starbrite Adaptor Nissan Yamaha Tohatsu and Honda Lower Unit 28401

    Starbrite

    $15.69 $9.99
    Starbrite Adaptor Nissan Yamaha Tohatsu and Honda Lower Unit 28401 Quick, easy and clean way to change marine lower unit gear lube For use with all 8 fl. oz. and 10 fl. oz. squeeze tubes (28600). Flexible hose gets to hard-to-reach fill plugs...
    Part Number:
    74-28401
    Availability:
    In Stock - Ships same or next business day.
    Description:
    Adapter for Yamaha - Nissan - Tohatsu & Honda (2-50hp)
    $15.69 $9.99
  • Starbrite Fogging Oil 12 Oz 84812

    Starbrite Fogging Oil 12 Oz 84812

    Starbrite

    $15.59 $10.65
    Starbrite Fogging Oil 12 Oz 84812 • Prevents corrosion when storing inboard or outboard engines for an extended period of time• Special formula makes starting engine after storage quick and easy
    Part Number:
    74-84812
    Availability:
    In Stock - Ships same or next business day.
    Size:
    12 oz.
    $15.59 $10.65

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.