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Aftermarket Parts

Aftermarket Parts

  • Sierra Eclipse 3 Speedo Kit 0-65Mph 68396P

    Sierra Eclipse 3 Speedo Kit 0-65Mph 68396P

    Sierra

    $104.99 $78.47
    Sierra Eclipse 3 Speedo Kit 0-65Mph 68396PSmart white and blue graphics on a black dial background; these very low profile bezels follow the curve of the lense to eliminate water trapping. Design with domed glass sheds water and resists scratching...
    Part Number:
    11-68396P
    Availability:
    In Stock - Ships same or next business day.
    Size:
    3"
    Type:
    Speedo Kit (includes pitot and hose)
    Dial Range:
    10-65 mph
    Sender Code:
    G included
    $104.99 $78.47
  • Sierra Eclipse I/B/Strdrv6 Gauge Set 68413P

    Sierra Eclipse I/B/Strdrv6 Gauge Set 68413P

    Sierra

    $409.49 $290.58
    Sierra Eclipse I/B/Strdrv6 Gauge Set 68413PSmart white and blue graphics on a black dial background; these very low profile bezels follow the curve of the lense to eliminate water trapping. Design with domed glass sheds water and resists scratching...
    Part Number:
    11-68413P
    Availability:
    In Stock - Ships same or next business day.
    Size:
    -
    Type:
    6 Gauge Set - Tach (to 7 -000 rpm) - Speedometer (to 65 mph) - Voltmeter (12-volt systems) - Fuel (requires tank with 240-33 ohm sender) - Water Temp 120-240 Deg - - Oil Pressure 0-80 psi
    Sender Code:
    C - D - F
    $409.49 $290.58
  • Sold Out, please call for ETA.
    Sierra Eclipse Speedo GPS-80Mph 781-684-080P

    Sierra Eclipse Speedo GPS-80Mph 781-684-080P

    Sierra

    $140.29 $1.30
    Sierra Eclipse Speedo GPS-80Mph 781-684-080PProvides accurate speed over ground readings and heading information all in one attractive package. This product is ideal for all speed applications and is particularly useful for slow and high speeds where...
    Part Number:
    11-781684080P
    Availability:
    In Stock - Ships same or next business day.
    Model:
    Eclipse - Black - Domed
    Size:
    3"
    Type:
    GPS Speedometer
    Dial Range:
    0-80 mph
    Sender Code:
    G included
  • Sierra Elbow Brass 90 Deg. 18-8067

    Sierra Elbow Brass 90 Deg. 18-8067

    Sierra

    $12.89 $10.99
    Sierra Elbow Brass 90 Deg. 18-8067NOT TO BE USED IN POTABLE WATER SYSTEMS.
    Part Number:
    47-8067
    Availability:
    In Stock - Ships same or next business day.
    Connector:
    90 Deg - Elbow
    Replaces:
    -
    Thread:
    1/4" NPT
    Hose:
    3/8" Barb
    $12.89 $10.99
  • Sierra Filter Kit H2O-10M Al 1/4 Lg 18-7966-1

    Sierra Filter Kit H2O-10M Al 1/4 Lg 18-7966-1

    Sierra

    $60.49 $49.16
    Sierra Filter Kit H2O-10M Al 1/4 Lg 18-7966-1Sierra fuel water separators remove over 98.8% of emulsified water from your gasoline. Sierra's 10 micron filters are over 90% efficient at removing particles as small as 10 micron. All filters flow @ 90 GPH...
    Part Number:
    47-79661
    Availability:
    In Stock - Ships same or next business day.
    Type:
    1/4" Aluminum
    Filter:
    High Capacity
    Contains:
    (1) 7866 & (1) 7853-1
    Replaces:
    Yamaha - MAR-SEPAR-AT-OR
    $60.49 $49.16
  • Sierra Filter Kith2O Sep-Ss 1/4'Tall 18-7777-1

    Sierra Filter Kith2O Sep-Ss 1/4'Tall 18-7777-1

    Sierra

    $118.39 $92.27
    Sierra Filter Kith2O Sep-Ss 1/4'Tall 18-7777-1Sierra fuel water separators remove over 98.8% of emulsified water from your gasoline. Sierra's 10 micron filters are over 90% efficient at removing particles as small as 10 micron. All filters flow @ 90 GPH...
    Part Number:
    47-77771
    Availability:
    In Stock - Ships same or next business day.
    Type:
    1/4" Stainless Steel
    Filter:
    Tall
    Contains:
    (1) 7845 & (1) 7777
    Replaces:
    Yamaha - ABB-SPRTR-HD-SS
    $118.39 $92.27
  • Sierra Filter Kith2O/10M Al 3/8 Long 18-7986-1

    Sierra Filter Kith2O/10M Al 3/8 Long 18-7986-1

    Sierra

    $65.09 $49.99
    Sierra Filter Kith2O/10M Al 3/8 Long 18-7986-1Sierra fuel water separators remove over 98.8% of emulsified water from your gasoline. Sierra's 10 micron filters are over 90% efficient at removing particles as small as 10 micron. All filters flow @ 90 GPH...
    Part Number:
    47-79861
    Availability:
    In Stock - Ships same or next business day.
    Type:
    3/8" Aluminum
    Filter:
    Tall
    Contains:
    (1) 7945 & (1) 7775
    $65.09 $49.99
  • Sierra Filter Oil/Sz#16510 87J00Brp 18-7915-1

    Sierra Filter Oil/Sz#16510 87J00Brp 18-7915-1

    Sierra

    $12.99 $10.99
    Sierra Filter Oil/Sz#16510 87J00Brp 18-7915-1Please see manufacturer application guide for complete application references.
    Part Number:
    47-79151
    Availability:
    In Stock - Ships same or next business day.
    Replaces:
    Johnson Evinrude: 778885 - 5031411
    Suzuki 16510-87J00
    $12.99 $10.99
  • Sierra Filter-Oil GM Ls Sb Remote Mnt 18-57824

    Sierra Filter-Oil GM Ls Sb Remote Mnt 18-57824

    Sierra

    $18.99 $16.20
    Sierra Filter-Oil GM Ls Sb Remote Mnt 18-57824Sierra high efficiency filters meet OEM specifications for marine use. Epoxy coated inside for corrosion resistance.
    Part Number:
    47-57824
    Availability:
    In Stock - Ships same or next business day.
    Application:
    Mastercraft
    OEM #:
    Mastercraft and Ilmor V8 GM New LS Series SB engines (Remote Mount)
    $18.99 $16.20
  • Sierra Filter-Oil Kohler# 267714 23-7823

    Sierra Filter-Oil Kohler# 267714 23-7823

    Sierra

    $10.69 $8.55
    Sierra Filter-Oil Kohler# 267714 23-7823
    Part Number:
    47-237823
    Availability:
    In Stock - Ships same or next business day.
    OEM #:
    Kohler #267714
    Fits:
    3.5 CFZ - 3.5 EFZ - 4 CZ - 4 ESZ - 5 CFZ - 5 EFZ - 6.5 CZ - 6.5 ESZ
    $10.69 $8.55

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.