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Aftermarket Parts

Aftermarket Parts

  • Sold Out, please call for ETA.
    Sierra Filter-Gas W-Metal Bowl OMC 10M 18-7943

    Sierra Filter-Gas W-Metal Bowl OMC 10M 18-7943

    Sierra

    $0.00
    Sierra Filter-Gas W-Metal Bowl OMC 10M 18-7943Sierra 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:
    47-7943
    Availability:
    In Stock - Ships same or next business day.
    Type:
    Kit: Filter & Metal Bowl
    Contains:
    18-7920 - 18-7924
    Replaces:
    OMC Style
  • Sierra Filter-Oil Bypass Vp#3582733 18-0036

    Sierra Filter-Oil Bypass Vp#3582733 18-0036

    Sierra

    $35.09 $33.65
    Sierra Filter-Oil Bypass Vp#3582733 18-0036Epoxy 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...
    Part Number:
    47-0036
    Availability:
    In Stock - Ships same or next business day.
    Application:
    Bypass
    Replaces:
    Volvo: 3582733
    $35.09 $33.65
  • Sold Out, please call for ETA.
    Sierra Filter-Oil Chrome GM L4-L6-V8 18-7824C

    Sierra Filter-Oil Chrome GM L4-L6-V8 18-7824C

    Sierra

    $0.00
    Sierra Filter-Oil Chrome GM L4-L6-V8 18-7824CSierra high efficiency filters meet OEM specifications for marine use. Epoxy coated inside for corrosion resistance.
    Part Number:
    47-7824C
    Availability:
    In Stock - Ships same or next business day.
    Type:
    Short (chrome)
    Application:
    GM style filter - Thead Spec: 13/16" x 16NPT
    OEM #:
    Chris-Craft: 16.81-08746 - Crusader: 201104
    Indmar: 50-1001
    Mercruiser: 35-802885Q - 32716 - 866340Q02 - Q03 - 866340K01 -
    Mercruiser Vazer - OMC: 173232 - 502902
    Pleasurecraft: R077002
    Volvo-Penta: 835440
    Yamaha: YSC-10231-20-0C
  • Sierra Filter-Oil Ford-Chr-Volvo Short 18-7878-1

    Sierra Filter-Oil Ford-Chr-Volvo Short 18-7878-1

    Sierra

    $14.99 $12.78
    Sierra Filter-Oil Ford-Chr-Volvo Short 18-7878-1Sierra high efficiency filters meet OEM specifications for marine use. Epoxy coated inside for corrosion resistance.
    Part Number:
    47-78781
    Availability:
    In Stock - Ships same or next business day.
    Type:
    Short
    Application:
    Ford style filter for most Volvo/Ford engines
    OEM #:
    Chrysler 3549957 - L-19 - L-1008 - Mercruiser 803470 - OMC 502904 - Volvo 1266286-2 - 430143-8 - 3517857-3
    $14.99 $12.78
  • Sierra Filter-Oil Full Flow Vp3582732 18-0035

    Sierra Filter-Oil Full Flow Vp3582732 18-0035

    Sierra

    $31.39 $29.50
    Sierra Filter-Oil Full Flow Vp3582732 18-0035Epoxy 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...
    Part Number:
    47-0035
    Availability:
    In Stock - Ships same or next business day.
    Application:
    Full Flow
    Replaces:
    Volvo: 3582732
    $31.39 $29.50
  • Sold Out, please call for ETA.
    Sierra Filter-Oil GM L4-6 & V8 Short 18-7824-1

    Sierra Filter-Oil GM L4-6 & V8 Short 18-7824-1

    Sierra

    $0.00
    Sierra Filter-Oil GM L4-6 & V8 Short 18-7824-1Sierra high efficiency filters meet OEM specifications for marine use. Epoxy coated inside for corrosion resistance.
    Part Number:
    47-78241
    Availability:
    In Stock - Ships same or next business day.
    Type:
    Short
    Application:
    GM style filter - for L4-6 & V8
    OEM #:
    Chris-Craft 16.81-08746 - Crusader 201104 - Indmar 50-1001 - Mercruiser 35-802885Q - 32716 - 866340Q02 - 866340K01 - OMC 173232 - 778864. Pleasurecraft R077002 - Volvo Penta 835440-9 - Yamaha YSC-10231-20-0C
  • Sierra Filter-Oil Kohler# GM47465 23-7824

    Sierra Filter-Oil Kohler# GM47465 23-7824

    Sierra

    $13.39 $10.46
    Sierra Filter-Oil Kohler# GM47465 23-7824
    Part Number:
    47-237824
    Availability:
    In Stock - Ships same or next business day.
    OEM #:
    Kohler #GM47465
    Fits:
    7 EFOZD(Var 1) - 8.5 EFOZD(Var 1) - 9 EOZD(Var 1) - 9 EFOZD (Var 1) - 10 EOZD(Var 1) - 11 EFOZD - 11.5 EFOZD - 13 EOZD - 13 EFOZD - 14 EOZD - 15.5 EOZD - 17 EFOZD - 17.5 EFOZD - 19 EFOZD - 20 EOZD - 20 EFOZD - 23 EOZD - 24 EOZD
    $13.39 $10.46
  • Sierra Filter-Oil Onan# 185-7444 23-7804

    Sierra Filter-Oil Onan# 185-7444 23-7804

    Sierra

    $10.46
    Sierra Filter-Oil Onan# 185-7444 23-7804
    Part Number:
    47-237804
    Availability:
    In Stock - Ships same or next business day.
    OEM #:
    Onan #185-7444
    Fits:
    Fischer Panda 15853-99170. Fits: PMS 8 MINI - PMS 8 DP - PMS 4200 - PMS 6500 - PMS 12 DP - PMS 12 Mini
    $10.46
  • Sierra Filter-Oil Yanmar & Westerbeke 18-7910-1

    Sierra Filter-Oil Yanmar & Westerbeke 18-7910-1

    Sierra

    $14.19 $11.89
    Sierra Filter-Oil Yanmar & Westerbeke 18-7910-1Epoxy 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...
    Part Number:
    47-79101
    Availability:
    In Stock - Ships same or next business day.
    Application:
    20mm x 1.5
    Replaces:
    Westerbeke: 30220. Yanmar 124450-35100
    Note:
    1
    $14.19 $11.89
  • Sierra Filter-Oil Ym6G8134400000MerCruiser 18-7901

    Sierra Filter-Oil Ym6G8134400000MerCruiser 18-7901

    Sierra

    $23.29 $17.81
    Sierra Filter-Oil Ym6G8134400000MerCruiser 18-7901Please see manufacturer application guide for complete application references.
    Part Number:
    47-7901
    Availability:
    In Stock - Ships same or next business day.
    Replaces:
    Yamaha: 6G8-13440-00-00
    Mercury: 825467A1 - 825467T1
    $23.29 $17.81
  • Sold Out, please call for ETA.
    Sierra Filter-Vst Yamaha # 6Cb-13915-00 18-79978

    Sierra Filter-Vst Yamaha # 6Cb-13915-00 18-79978

    Sierra

    $62.99 $49.10
    Sierra Filter-Vst Yamaha # 6Cb-13915-00 18-79978
    Part Number:
    47-79978
    Availability:
    In Stock - Ships same or next business day.
    Application:
    F225 4.2L (2010) - F250 4.2L (2010) - F300 4.2L (2010) - LF225 4.2L (2010) - LF250 4.2L (2010) - LF300 4.2L (2010) - VF200 4.2L (2009-10) - VF225 4.2L (2009-10) - VF250 4.2L (2009-10)
    OEM #:
    Yamaha 6CB-13915-00
  • Sierra Filterfuel/Yamaha #646 24251 02 00 18-7713

    Sierra Filterfuel/Yamaha #646 24251 02 00 18-7713

    Sierra

    $19.59 $14.31
    Sierra Filterfuel/Yamaha #646 24251 02 00 18-7713
    Part Number:
    47-7713
    Availability:
    In Stock - Ships same or next business day.
    Replaces:
    Mercury/Mariner 35-80365M -
    Yamaha 646-24251-02-00
    Application:
    Merc/Mariner 9.9 4-Stroke ('95-98) - 15 4-Stroke('98 & Up)
    Yamaha 6 ('89 - '92-99) - 8 ('89-99 - '01-02) - F4 ('99-02) - F9.9 (1989-95 - 97-99 - 2001-02) - FT 9.9 ('88-90)
    $19.59 $14.31

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.