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

  • Sea-Dog Line Anchor Shackle 1/4 Glv Rated 147606

    Sea-Dog Line Anchor Shackle 1/4 Glv Rated 147606

    SEA-DOG LINE

    $6.06
    Sea-Dog Line Anchor Shackle 1/4 Glv Rated 147606   With their rounded shape, Screw Pin Anchor Bow Shackles are designed for many different applications. Features a screw pin closure for quick removal, making them ideal for rigging applications where...
    Part Number:
    354-147606
    Availability:
    In Stock - Ships same or next business day.
    A:
    5/16"
    B:
    9/16"
    C:
    13/16"
    D:
    1-1/8"
    WLL (In Tons):
    1/2
    Pkg.:
    Bulk
    $6.06
  • Sea-Dog Line Anchor Swivel SS 1/4 - 5/16" 182608-1

    Sea-Dog Line Anchor Swivel SS 1/4 - 5/16" 182608-1

    SEA-DOG LINE

    $77.95 $58.18
    Sea-Dog Line Anchor Swivel SS 1/4 - 5/16" 182608-1 Anchor Swivels are designed to easily slide over anchor rollers, preventing snagging, minimizing wear on the bow roller and windlass. These precision, high quality swivels feature double locking pins for...
    Part Number:
    354-1826081
    Availability:
    In Stock - Ships same or next business day.
    A:
    3 9/16"
    B:
    5/8"
    C:
    13/16"
    D:
    13/32"
    E:
    1-1/8"
    Chain Sizes:
    1/4"-5/16"
    B.S. (lb.):
    5,500
    $77.95 $58.18
  • Sea-Dog Line Battery Box Strap & Bracket 415094-1

    Sea-Dog Line Battery Box Strap & Bracket 415094-1

    SEA-DOG LINE

    $8.15
    Sea-Dog Line Battery Box Strap & Bracket 415094-1 Battery Box Strap & Brackets includes a woven polypropylene strap, injection molded nylon buckle, two brackets, and four #8 FH fasteners.  
    Part Number:
    354-4150941
    Availability:
    In Stock - Ships same or next business day.
    A:
    54"
    B:
    1-9/16"
    C:
    1"
    D:
    2-5/16"
    $8.15
  • Sea-Dog Line Black Bimini Strap - 8 Feet 298172-1

    Sea-Dog Line Black Bimini Strap - 8 Feet 298172-1

    SEA-DOG LINE

    $16.50 $15.20
    Sea-Dog Line Black Bimini Strap - 8 Feet 298172-1 Nylon Bimini Straps are used to replace lost or damaged Bimini top straps. Constructed of 1” wide nylon webbing with corrosion resistant stainless snap hooks. 8’ long.  
    Part Number:
    354-2981721
    Availability:
    In Stock - Ships same or next business day.
    Color:
    Black Nylon Webbing/Stainless Steel
    A:
    8'
    B:
    1"
    C:
    2-1/8"
    $16.50 $15.20
  • Sea-Dog Line Brass 3-Position Key Switch 420350-1

    Sea-Dog Line Brass 3-Position Key Switch 420350-1

    SEA-DOG LINE

    $39.25 $29.65
    Sea-Dog Line Brass 3-Position Key Switch 420350-13 Position brass ignition/starter switch w/ 3 screw terminals. 13/16" Shaft dia. Long shaft type. Functions: Off-Ignition-Start.
    Part Number:
    354-4203501
    Availability:
    In Stock - Ships same or next business day.
    Panel:
    1-1/8" Max
    Terminals:
    3 Screw
    Boot:
    No
    $39.25 $29.65
  • Sea-Dog Line Brass Berth Light - Small 400400-1

    Sea-Dog Line Brass Berth Light - Small 400400-1

    SEA-DOG LINE

    $97.15 $73.99
    Sea-Dog Line Brass Berth Light - Small 400400-1 This Berth Light is prewired with integral on/off switch and includes a 15 watt DC double contact bayonet style bulb. Can be converted to LED with bayonet bulb socket adapter (442042-1) BA150 style base...
    Part Number:
    354-4004001
    Availability:
    In Stock - Ships same or next business day.
    A:
    3-9/16"
    B:
    2-15/16"
    C:
    3-3/4"
    D:
    4-3/8"
    Finish:
    Brass
    $97.15 $73.99
  • Sea-Dog Line Circuit Breaker (Resettable) - 420853-1

    Sea-Dog Line Circuit Breaker (Resettable) - 420853-1

    SEA-DOG LINE

    $16.75 $15.99
    Sea-Dog Line Circuit Breaker (Resettable) - 420853-1 Resettable inline with manual reset button for use with higher amperage accessories. Complies with SAE standard J553. Splash proof. May be used on 12V or 24V systems.
    Part Number:
    354-4208531
    Availability:
    In Stock - Ships same or next business day.
    Description:
    Breaker w/Cover
    Amps:
    30
    $16.75 $15.99
  • Sea-Dog Line Circuit Breaker (Resettable) - 420855-1

    Sea-Dog Line Circuit Breaker (Resettable) - 420855-1

    SEA-DOG LINE

    $15.15 $14.04
    Sea-Dog Line Circuit Breaker (Resettable) - 420855-1Resettable inline with manual reset button for use with higher amperage accessories. Complies with SAE standard J553. Splash proof. May be used on 12V or 24V systems.
    Part Number:
    354-4208551
    Availability:
    In Stock - Ships same or next business day.
    Description:
    Breaker w/Cover
    Amps:
    50
    $15.15 $14.04
  • Sea-Dog Line Combination Bow Light (Round) 400150-1

    Sea-Dog Line Combination Bow Light (Round) 400150-1

    SEA-DOG LINE

    $37.55 $33.99
    Sea-Dog Line Combination Bow Light (Round) 400150-1 This Round Combination Bow Light is for replacement of existing lighting (not for new construction). Constructed of corrosion resistant stamped 304 stainless steel. Installs with three #4 RH fasteners...
    Part Number:
    354-4001501
    Availability:
    In Stock - Ships same or next business day.
    Description:
    Stamped 304 Stainless Steel
    A:
    2-5/16"
    B:
    1-3/8"
    C:
    3/4"
    Volts:
    12
    Light Arc:
    20 pts
    $37.55 $33.99
  • Sea-Dog Line Contura Switch Mom/Off/Mom Dp 420209-1

    Sea-Dog Line Contura Switch Mom/Off/Mom Dp 420209-1

    SEA-DOG LINE

    $25.95 $17.39
    Sea-Dog Line Contura Switch Mom/Off/Mom Dp 420209-1Stamped brass/injection molded nylon & polycarbonate. Ignition protected, water resistant. Rated 20 amps @12 volt. On in parenthesis (On) indicates a momentary position.
    Part Number:
    354-4202091
    Availability:
    In Stock - Ships same or next business day.
    Positions:
    (On)/Off/(On)
    Type:
    DPDT
    Terminals:
    6 Blades
    $25.95 $17.39
  • Sea-Dog Line Contura Switch On/Off/On 420203-1

    Sea-Dog Line Contura Switch On/Off/On 420203-1

    SEA-DOG LINE

    $16.95 $12.06
    Sea-Dog Line Contura Switch On/Off/On 420203-1Stamped brass/injection molded nylon & polycarbonate. Ignition protected, water resistant. Rated 20 amps @12 volt. On in parenthesis (On) indicates a momentary position.
    Part Number:
    354-4202031
    Availability:
    In Stock - Ships same or next business day.
    Positions:
    On/Off/On
    Type:
    SPDT
    Terminals:
    3 Blades
    $16.95 $12.06
  • Sea-Dog Line D Shackle SS 1/4" 147006-1

    Sea-Dog Line D Shackle SS 1/4" 147006-1

    SEA-DOG LINE

    $5.00 $4.58
    Sea-Dog Line D Shackle SS 1/4" 147006-1   These D-Shackles have straight sides with a U-shape rounded bottom. Designed for rigging applications. Constructed of corrosion resistant investment cast 316 stainless steel.    
    Part Number:
    354-1470061
    Availability:
    In Stock - Ships same or next business day.
    A:
    1/4"
    B:
    1/2"
    C:
    7/8"
    $5.00 $4.58
  • Sea-Dog Line Deck Anchor Chock SS Set 322150-1

    Sea-Dog Line Deck Anchor Chock SS Set 322150-1

    SEA-DOG LINE

    $94.95 $68.58
    Sea-Dog Line Deck Anchor Chock SS Set 322150-1   Anchor Chocks help protect the surface of your deck in rough seas or while the boat is underway. Secures the anchor when not in use while still maintaining easy access. For use with conventional...
    Part Number:
    354-3221501
    Availability:
    In Stock - Ships same or next business day.
    Anchor Size:
    5-20 lbs.
    Material:
    Stainless Steel
    Fastener:
    #10 FH
    $94.95 $68.58
  • Sea-Dog Line Deck Hinge 90Deg Hd Stainless 270205-1

    Sea-Dog Line Deck Hinge 90Deg Hd Stainless 270205-1

    SEA-DOG LINE

    $20.75 $18.99
    Sea-Dog Line Deck Hinge 90Deg Hd Stainless 270205-1 These Top Mount Hinge Fittings are designed to mount horizontally and attach an eye end in Bimini top applications. Concave Hinges are designed to rail mount on 1” tubing. Angled Hinges are...
    Part Number:
    354-2702051
    Availability:
    In Stock - Ships same or next business day.
    Material:
    316 Stainless
    Pin:
    5/16"
    Base:
    1" x 2-1/16"
    Fastener:
    1/4"
    $20.75 $18.99
  • Sea-Dog Line Deck Hinge Side Mount Four Hole (White) 273256-1

    Sea-Dog Line Deck Hinge Side Mount Four Hole (White) 273256-1

    SEA-DOG LINE

    $9.00 $8.29
    Sea-Dog Line Deck Hinge Side Mount Hd White Pr 273256-1 Side Mount Hinge Fittings are designed to mount vertically and attach an eye end in Bimini top applications. 1/4” pin size. Constructed of UV resistant injection molded nylon. Installs with...
    Part Number:
    354-2732561
    Availability:
    In Stock - Ships same or next business day.
    Color:
    White Injection Molded Nylon
    Width:
    1-3/4"
    Length:
    2"
    Pin:
    1/4"
    $9.00 $8.29
  • Sea-Dog Line Deluxe LED Courtesy Light-Large Down (Blue) 401421-1

    Sea-Dog Line Deluxe LED Courtesy Light-Large Down (Blue) 401421-1

    SEA-DOG LINE

    $59.95 $43.03
    Sea-Dog Line Deluxe LED Courtesy Light-Large Down (Blue) 401421-1 These Large Deluxe LED Courtesy Lights are available with outward or downward directed light. Feature 3 low amp, long life blue or white LEDs with a 60 or 24 lumen output. Constructed of a...
    Part Number:
    354-4014211
    Availability:
    In Stock - Ships same or next business day.
    Description:
    Plastic/Investment Cast 316 Stainless Steel
    Type:
    Down
    LED Color:
    Blue
    A:
    3-15/16"
    B:
    11/16"
    C:
    7/16"
    Volts:
    9-28
    Lumens:
    24
    $59.95 $43.03
  • Sea-Dog Line Double USB Power Socket 426515-1

    Sea-Dog Line Double USB Power Socket 426515-1

    SEA-DOG LINE

    $27.99 $23.97
    Sea-Dog Line Double USB Power Socket 426515-1Total output is 3.1A with the load being split between the two sides as needed - enough to charge iPhones, iPads and almost all other devices. Fits Sea-Dog line power socket shell. Injection molded nylon.
    Part Number:
    354-4265151
    Availability:
    In Stock - Ships same or next business day.
    A:
    1-7/16"
    B:
    1-1/2"
    C:
    1-1/16"
    Input:
    12-24V
    Output:
    5V DC/3.1 Amps
    $27.99 $23.97
  • Sea-Dog Line Flag Pole With Rail Mount 327120-1

    Sea-Dog Line Flag Pole With Rail Mount 327120-1

    SEA-DOG LINE

    $15.55 $14.99
    Sea-Dog Line Flag Pole With Rail Mount 327120-1 Injection molded nylon and stainless steel. Complete with split rings for easy attachment.
    Part Number:
    354-3271201
    Availability:
    In Stock - Ships same or next business day.
    Fits:
    7/8"-1" rails
    Length:
    15-1/2"
    $15.55 $14.99
  • Sea-Dog Line Halogen Floodlight 405115-1

    Sea-Dog Line Halogen Floodlight 405115-1

    SEA-DOG LINE

    $42.95 $36.99
    Sea-Dog Line Halogen Floodlight 405115-1 This marine grade Halogen Flood Light features H3 style 12VDC 55W halogen bulb. Constructed of fiberglass reinforced injection molded housing for strength and UV resistance, a solid glass lens, and a corrosion...
    Part Number:
    354-4051151
    Availability:
    In Stock - Ships same or next business day.
    A:
    5-7/8"
    B:
    4-1/16"
    C:
    3-3/16"
    Volts:
    12
    Amps:
    4.58
    Watts:
    55
    $42.95 $36.99

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.