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Aftermarket Parts

Aftermarket Parts

  • Sierra P-Water Pump Kt Om983218 Strngr 18-3386
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    Sierra P-Water Pump Kt Om983218 Strngr 18-3386

    Sierra

    $117.99 $91.07
    Sierra P-Water Pump Kt Om983218 Strngr 18-3386Refer to Sierra's Catalog for more information.
    Part Number:
    47-3386
    Availability:
    In Stock - Ships same or next business day.
    Description:
    Water Pump Kit: OMC Stringer Mount I/O Replaces OEM # OMC# 983218 (1964-86)
    $117.99 $91.07
    Add to Cart
  • Sold Out, please call for ETA.
    Sierra Pump Motor-Power Pole Pro-F 18-6819

    Sierra Pump Motor-Power Pole Pro-F 18-6819

    Sierra

    $503.19 $445.85
    Sierra Pump Motor-Power Pole Pro-F 18-6819All NEW (not remanufactured) tilt and trim motors and assembliesMeets OEM specifications or late design upgrades90/10 copper bushings for longer lifeHigh temperature epoxy armature provides strength to secure...
    Part Number:
    47-6819
    Availability:
    In Stock - Ships same or next business day.
    Type:
    New
    Application:
    Power Pole
    OEM #:
    PUMP PRO-F
    $503.19 $445.85
    Sold out - Special order may be available, please call 856-232-6969 ext1
  • Sold Out, please call for ETA.
    Sierra Reman Carb-600Cfm Holley 4Bbl 18-7637

    Sierra Reman Carb-600Cfm Holley 4Bbl 18-7637

    Sierra

    $1,026.19 $929.88
    Sierra Reman Carb-600Cfm Holley 4Bbl 18-7637Sierra'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:
    47-7637
    Availability:
    In Stock - Ships same or next business day.
    Mfg:
    Holley
    Mfg #:
    N/A
    Type:
    4V/600cfm
    OEM:
    Universal
    OEM #:
    N/A
    Application:
    Standard inlet - electric choke
    $1,026.19 $929.88
    Sold out - Special order may be available, please call 856-232-6969 ext1
  • Sierra Sahara 6 Gauge Set 65485P
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    Sierra Sahara 6 Gauge Set 65485P

    Sierra

    $409.49 $290.58
    Sierra Sahara 6 Gauge Set 65485PBlack graphics on a Tan dial background light Red at night. Very low profile bezels follow the curve of the lens to eliminate water "trapping". Pointers are Black with a Fire-Orange tip. Perimeter and through-dial lighting...
    Part Number:
    11-65485P
    Availability:
    In Stock - Ships same or next business day.
    Type:
    Inboard/Sterndrive 6 Gauge Set: Tach (to 7 -000 rpm) - Speedo (to 65 mph) - Voltmeter (12V systems) - Fuel gauge - Water temp - Oil pressure 0-80psi
    Sender Code:
    C - D - F
    $409.49 $290.58
    Add to Cart
  • Sierra Sahara Oil Pressure Gauge 80 59705P
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    Sierra Sahara Oil Pressure Gauge 80 59705P

    Sierra

    $56.39 $49.99
    Sierra Sahara Oil Pressure Gauge 80 59705PBlack graphics on a tan dial background light red at night. Very low profile bezels follow the curve of the lens to eliminate water "trapping". Pointers are black with a fire-orange tip. Perimeter and...
    Part Number:
    11-59705P
    Availability:
    In Stock - Ships same or next business day.
    Size:
    2"
    Type:
    Oil Pressure - Electrical
    Dial Range:
    0-80 psi
    Sender Code:
    C
    $56.39 $49.99
    Add to Cart
  • Sold Out, please call for ETA.
    Sierra Sahara Water Temp Gauge I/O 59706P

    Sierra Sahara Water Temp Gauge I/O 59706P

    Sierra

    $66.89 $48.45
    Sierra Sahara Water Temp Gauge I/O 59706PBlack graphics on a tan dial background light red at night. Very low profile bezels follow the curve of the lens to eliminate water "trapping". Pointers are black with a fire-orange tip. Perimeter and through-dial...
    Part Number:
    11-59706P
    Availability:
    In Stock - Ships same or next business day.
    Size:
    2"
    Type:
    Water Temperature - Electric
    Dial Range:
    120-240 F
    Sender Code:
    D
    $66.89 $48.45
    Sold out - Special order may be available, please call 856-232-6969 ext1
  • Sierra Sterling Oil Pressure0-80 Psi 63479P
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    Sierra Sterling Oil Pressure0-80 Psi 63479P

    Sierra

    $53.29 $41.65
    Sierra Sterling Oil Pressure0-80 Psi 63479PBlack graphics on a brushed aluminum dial background. Pointers are black. Perimeter lighting is provided for night visibility. Domed glass convex lenses are scratch resistant.
    Part Number:
    11-63479P
    Availability:
    In Stock - Ships same or next business day.
    Size:
    2"
    Type:
    Oil Pressure - Electrical
    Dial Range:
    0-80 psi
    Sender Code:
    C
    $53.29 $41.65
    Add to Cart
  • Sierra Sterling Speedo Kit 80 Mph 63476P
    Add to Cart

    Sierra Sterling Speedo Kit 80 Mph 63476P

    Sierra

    $98.99 $81.28
    Sierra Sterling Speedo Kit 80 Mph 63476PBlack graphics on a brushed aluminum dial background. Pointers are black. Perimeter lighting is provided for night visibility. Domed glass convex lenses are scratch resistant.
    Part Number:
    11-63476P
    Availability:
    In Stock - Ships same or next business day.
    Size:
    3"
    Type:
    Speedometer - Head Only
    Dial Range:
    20-80 mph
    Sender Code:
    G included
    $98.99 $81.28
    Add to Cart
  • Sierra Thermostat Kit 3856961 18-3677
    Add to Cart

    Sierra Thermostat Kit 3856961 18-3677

    Sierra

    $32.69 $23.52
    Sierra Thermostat Kit 3856961 18-3677
    Part Number:
    47-3677
    Availability:
    In Stock - Ships same or next business day.
    Description:
    T-Stat Kit (160 Deg -) : OMC 4.3l - 5.0l & 5.8l '94-'97/ 4.3HO '91-'97/5. 8EFI '93-'97 / Volvo 4.3GL/GS/Gi - 5.0FL/Fi - 5.7GL/Gi & 5.8FL/Fi/Fsi
    $32.69 $23.52
    Add to Cart
  • Sierra Thermostat Kit Mer-Nis-Toh 9.9-30Hp 18-43175
    Add to Cart

    Sierra Thermostat Kit Mer-Nis-Toh 9.9-30Hp 18-43175

    Sierra

    $69.79 $53.85
    Sierra Thermostat Kit Mer-Nis-Toh 9.9-30Hp 18-43175Mercury/Mariner: Replaces- 855676002Fits: Mercury 15 Carb(2cyl) 4-Stroke(R235949& Up); 15 SeaPro 4-Stroke(R051685 & Up); 20 Carb(2cyl)4-Stroke(R235168 & Up); 25 EFI(3cyl)4-Stroke(R106999 & Up); 25 Jet...
    Part Number:
    47-43175
    Availability:
    In Stock - Ships same or next business day.
    $69.79 $53.85
    Add to Cart

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.