FREE SHIPPING OVER $99

BEST PRICE GUARANTEED

EARN POWERBOAT REWARDS

SUPPORT M-F 9-5 EST: 856-232-6969

Mercury Outboard Warranty Event: FREE 7-year factory coverage or Platinum upgrade — limited time savings.
See Mercury Outboards

Boat Accessories and Supplies

Boat Accessories and Supplies

  • Sierra Ignition Switch Mp51020

    Sierra Ignition Switch Mp51020

    Sierra

    $126.59 $97.52
    Sierra Ignition Switch Mp51020Exact OEM replacements installation for Yamaha outboards. Ideal for use with DFI; EFI and MPI engine packages. A rubber molded key combines OEM appearance and feel with a solid; secure grip in all conditions - even when...
    Part Number:
    11-MP51020
    Availability:
    In Stock - Ships same or next business day.
    For:
    2 & 4 Stroke (control box)
    OEM #:
    703-82510-12-00
    $126.59 $97.52
  • Sierra Ignition Switch Mp51040

    Sierra Ignition Switch Mp51040

    Sierra

    $159.59 $121.64
    Sierra Ignition Switch Mp51040Exact OEM replacements installation for Yamaha outboards. Ideal for use with DFI; EFI and MPI engine packages. A rubber molded key combines OEM appearance and feel with a solid; secure grip in all conditions - even when...
    Part Number:
    11-MP51040
    Availability:
    In Stock - Ships same or next business day.
    For:
    2 & 4 Stroke (Control Box)
    OEM #:
    703-82510-43-00
    $159.59 $121.64
  • Sierra In-Line Fuse Holder Fs45410

    Sierra In-Line Fuse Holder Fs45410

    Sierra

    $10.99 $8.51
    Sierra In-Line Fuse Holder Fs45410Designed to accept automative style spade-terminal fuses. ATO/ATC. Bulk packed
    Part Number:
    11-FS45410
    Availability:
    In Stock - Ships same or next business day.
    Rating:
    20A
    Gauge:
    14
    Fuse:
    20A
    $10.99 $8.51
  • Sierra Indicator Lamp Un22150

    Sierra Indicator Lamp Un22150

    Sierra

    $16.19 $12.59
    Sierra Indicator Lamp Un22150Wire leads for easy hookup.
    Part Number:
    11-UN22150
    Availability:
    In Stock - Ships same or next business day.
    Lens:
    Red
    Hole:
    5/16"
    Volts:
    125V AC
    $16.19 $12.59
  • Sierra Mom ON-OFF-Mom On S.P. Rocker Rk40350

    Sierra Mom ON-OFF-Mom On S.P. Rocker Rk40350

    Sierra

    $13.29 $11.04
    Sierra Mom ON-OFF-Mom On S.P. Rocker Rk40350Non corrosive plastic construction. Black face plate. Non-illuminated. Silver contacts and brass blade terminals. Rated: 20 amps @ 12 VDC. ON in parenthesis (On) indicates a momentary position.
    Part Number:
    11-RK40350
    Availability:
    In Stock - Ships same or next business day.
    Positions:
    (On)/Off/(On)
    Color:
    Black
    Type:
    SPDT
    Terminals:
    3 Blade
    $13.29 $11.04
  • Sold Out, please call for ETA.
    Sierra Mom.ON-OFF Illuminated Rocker Rk40120

    Sierra Mom.ON-OFF Illuminated Rocker Rk40120

    Sierra

    $16.19 $13.10
    Sierra Mom.ON-OFF Illuminated Rocker Rk40120Non-corrosive plastic construction; silver contacts; brass blade terminals. Rated 20 amps @ 12VDC. Fits a cutout of .830'' x 1.45''. Fits panel up to .187'' thick. ON in parenthesis (On) indicates a momentary...
    Part Number:
    11-RK40120
    Availability:
    In Stock - Ships same or next business day.
    Positions:
    (On)/Off
    Type:
    SPST
    Terminals:
    3 Blade
  • Sierra Mom.ON-OFF-Mom.On Tip Light Tg40330

    Sierra Mom.ON-OFF-Mom.On Tip Light Tg40330

    Sierra

    $21.79 $16.96
    Sierra Mom.ON-OFF-Mom.On Tip Light Tg40330Lights through tip of handle. Non-corrosive plastic construction. Illuminates white when panel lights are ON; changes to red when switch is ON. Brass blade terminals; silver contacts. 15/32" L x 15/32" -32...
    Part Number:
    11-TG40330
    Availability:
    In Stock - Ships same or next business day.
    Positions:
    (On)/Off/(On)
    Terminals:
    5 Blade
    Type:
    SPDT
    Pkg.:
    Retail
    $21.79 $16.96
  • Sierra Off/On/On Switch Mp39610

    Sierra Off/On/On Switch Mp39610

    Sierra

    $25.29 $19.85
    Sierra Off/On/On Switch Mp39610Sierra push pull switches feature solid brass construction with stainless steel springs. 3/8" Diameter mounting stem fits panels up to 1" thick. 15 amp @12VDC; 25A @24VDC.MP39600: energizes two separate circuits in the ON...
    Part Number:
    11-MP39610
    Availability:
    In Stock - Ships same or next business day.
    Description:
    Off/On (1)/On (2&3)
    Type:
    SPDT
    Terminals:
    4 Screw
    Knob:
    Chr/Plastic
    $25.29 $19.85
  • Sierra ON-OFF-ON D.P.6 Pole Toggle Tg40450-1

    Sierra ON-OFF-ON D.P.6 Pole Toggle Tg40450-1

    Sierra

    $15.79 $12.88
    Sierra ON-OFF-ON D.P.6 Pole Toggle Tg40450-1Non-corrosive plastic construction. Brass blade terminals; silver contacts. 15/32" L x 15/32" - 32 mounting stem. Rated: 20 amps @ 12 VDC. On in parenthesis (On) indicates a momentary position.
    Part Number:
    11-TG404501
    Availability:
    In Stock - Ships same or next business day.
    Positions:
    On/Off/On
    Terminals:
    6 Blade
    Type:
    DPDT
    Pkg.:
    Retail
    $15.79 $12.88
  • Sierra ON-OFF-ON S.P.Illum Rocker Switch Rk40110

    Sierra ON-OFF-ON S.P.Illum Rocker Switch Rk40110

    Sierra

    $17.79 $14.19
    Sierra ON-OFF-ON S.P.Illum Rocker Switch Rk40110Non-corrosive plastic construction; silver contacts; brass blade terminals. Rated 20 amps @ 12VDC. Fits a cutout of .830'' x 1.45''. Fits panel up to .187'' thick. ON in parenthesis (On) indicates a...
    Part Number:
    11-RK40110
    Availability:
    In Stock - Ships same or next business day.
    Positions:
    On/Off/On
    Type:
    SPDT
    Terminals:
    4 Blade
    $17.79 $14.19
  • Sierra On/Off Switch Mp39520

    Sierra On/Off Switch Mp39520

    Sierra

    $24.79 $19.40
    Sierra On/Off Switch Mp39520Sierra push pull switches feature solid brass construction with stainless steel springs. 3/8" Diameter mounting stem fits panels up to 1" thick. 15 amp @12VDC; 25A @24VDC.MP39600: energizes two separate circuits in the ON...
    Part Number:
    11-MP39520
    Availability:
    In Stock - Ships same or next business day.
    Description:
    Off/On
    Type:
    SPST
    Terminals:
    2 Screw
    Knob:
    Chr/Plastic
    $24.79 $19.40
  • Sold Out, please call for ETA.
    Sierra On/Off/On Switch Mp39570

    Sierra On/Off/On Switch Mp39570

    Sierra

    $24.19 $18.65
    Sierra On/Off/On Switch Mp39570Sierra push pull switches feature solid brass construction with stainless steel springs. 3/8" Diameter mounting stem fits panels up to 1" thick. 15 amp @12VDC; 25A @24VDC.MP39600: energizes two separate circuits in the ON...
    Part Number:
    11-MP39570
    Availability:
    In Stock - Ships same or next business day.
    Description:
    Off/On (1)/On (1&2)
    Type:
    SPDT
    Terminals:
    3 screw
    Knob:
    Chr/Plastic
  • Sold Out, please call for ETA.
    Sierra Pigtail 1 Ft Male Tc44054

    Sierra Pigtail 1 Ft Male Tc44054

    Sierra

    $9.19 $7.80
    Sierra Pigtail 1 Ft Male Tc44054Shrouded connectors provide better protection against weather; dirt and moisture. Unshrouded connectors are found on most OEM trailers. The plugs are interchangeable and can connect together.White = GroundBrown = Tail;...
    Part Number:
    11-TC44054
    Availability:
    In Stock - Ships same or next business day.
    Description:
    Trailer Side
    Connector:
    4 Pole
    Shrouded:
    No
    Lead:
    4-12"
  • Sierra Polyester Ign.Switch 4-Pos. Mp39800

    Sierra Polyester Ign.Switch 4-Pos. Mp39800

    Sierra

    $29.99 $22.00
    Sierra Polyester Ign.Switch 4-Pos. Mp39800All amperage ratings are at 12V DC.Polyester Switches: Provide maximum corrosion protection and eliminate potential shorts. Inner seal between cylinder lock and contact plate.Brass Switches: Traditional corrosion...
    Part Number:
    11-MP39800
    Availability:
    In Stock - Ships same or next business day.
    Type:
    Conventional
    Material:
    Polyester
    Max Panel Thickness:
    1-1/8"
    Terminals:
    4 Blade
    Boot:
    No
    Mtg Hole:
    7/8"
    $29.99 $22.00
  • Sierra Polyester Toggles Switch Tg40040-1

    Sierra Polyester Toggles Switch Tg40040-1

    Sierra

    $12.89 $10.25
    Sierra Polyester Toggles Switch Tg40040-1Non-corrosive plastic construction. Brass blade terminals; silver contacts. 15/32" L x 15/32" - 32 mounting stem. Rated: 20 amps @ 12 VDC. On in parenthesis (On) indicates a momentary position.
    Part Number:
    11-TG400401
    Availability:
    In Stock - Ships same or next business day.
    Positions:
    On/Off/On
    Terminals:
    3 Blade
    Type:
    SPDT
    Pkg.:
    Retail
    $12.89 $10.25
  • Sierra Polyester Toggles/11-40310 Tg40310

    Sierra Polyester Toggles/11-40310 Tg40310

    Sierra

    $18.89 $14.59
    Sierra Polyester Toggles/11-40310 Tg40310Lights through tip of handle. Non-corrosive plastic construction. Illuminates white when panel lights are ON; changes to red when switch is ON. Brass blade terminals; silver contacts. 15/32" L x 15/32" -32...
    Part Number:
    11-TG40310
    Availability:
    In Stock - Ships same or next business day.
    Positions:
    (On)/Off
    Terminals:
    4 Blade
    Type:
    SPST
    Pkg.:
    Retail
    $18.89 $14.59
  • Sierra Polyester Toggles/S11-40060 Tg40060

    Sierra Polyester Toggles/S11-40060 Tg40060

    Sierra

    $15.69 $13.09
    Sierra Polyester Toggles/S11-40060 Tg40060Non-corrosive plastic construction. Illuminates white when panel lights are OFF; changes to red when switch is ON. Brass blade terminals; silver contacts. 15/32" L x 15/32" -32 mounting stem. Rated: 20 amps @ 12...
    Part Number:
    11-TG40060
    Availability:
    In Stock - Ships same or next business day.
    Positions:
    On/Off
    Terminals:
    4 Blade
    Type:
    SPST
    $15.69 $13.09
  • Sierra Push Button Start Switch Mp39320

    Sierra Push Button Start Switch Mp39320

    Sierra

    $34.09 $26.24
    Sierra Push Button Start Switch Mp39320Momentary ON-OFF SPSTFor starter; horn or other functions. Solid brass construction. 1-1/4" long; 5/8" diameter mounting stem. Overall length is 2-7/8"
    Part Number:
    11-MP39320
    Availability:
    In Stock - Ships same or next business day.
    Description:
    Dust proof rubber boot nut - Screw terminals
    Amps:
    20
    $34.09 $26.24

Shop the Best Boat Accessories Online

Whether you're prepping for a weekend on the water or upgrading your gear, PowerBoatSupply.com has all the boat accessories you need. From electrical components and drink holders to safety gear and dock lines, our wide selection of boat accessories ensures you're ready for anything out on the water.

We carry trusted brands like Sea-Dog Line, Seachoice, Attwood Marine, and more — offering both essential and specialized boat accessories for every type of boater. Not sure which part is right for your setup? Our team is here to help you choose the best boat accessories for your vessel and your adventures.

Browse our best-selling items below and get fast shipping, great prices, and top-rated customer service from PowerBoatSupply.com — your source for quality marine parts and accessories since 1987.