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Boat Accessories and Supplies

Boat Accessories and Supplies

  • Sea-Dog Line Adjustable Pantographic Wiper Arm (Black) 413322-1

    Sea-Dog Line Adjustable Pantographic Wiper Arm (Black) 413322-1

    SEA-DOG LINE

    $112.00 $90.24
    Sea-Dog Line Adjustable Pantographic Wiper Arm (Black) 413322-1 Adjustable Pantographic Wiper Arm for use on standard MRV and heavy duty waterproof wiper motors with 5/8" shaft diameter. Compatible with 1.5”, 2.5” and 3.5” shaft lengths...
    Part Number:
    354-4133221
    Availability:
    In Stock - Ships same or next business day.
    Description:
    Formed 304 Stainless Steel
    Finish:
    Black
    A:
    17"-22"
    Shaft Size:
    5/8"
    $112.00 $90.24
  • Sea-Dog Line Adjustable Wiper Arm (Black) 413111B-1

    Sea-Dog Line Adjustable Wiper Arm (Black) 413111B-1

    SEA-DOG LINE

    $64.25 $49.99
    Sea-Dog Line Adjustable Wiper Arm (Black) 413111B-1 Adjustable Wiper Arm for use on MRV and heavy duty waterproof wiper motors with 5/8" shaft diameter. Compatible with 1.5”, 2.5” and 3.5” shaft lengths. Constructed of corrosion...
    Part Number:
    354-413111B1
    Availability:
    In Stock - Ships same or next business day.
    Finish:
    Black
    Shaft:
    5/8"
    A:
    8"-11-1/4"
    $64.25 $49.99
  • Sea-Dog Line Adjustable Wiper Arm (Silver) 413114S-1

    Sea-Dog Line Adjustable Wiper Arm (Silver) 413114S-1

    SEA-DOG LINE

    $50.75 $37.33
    Sea-Dog Line Adjustable Wiper Arm (Silver) 413114S-1 Adjustable Wiper Arm for use on MRV and heavy duty waterproof wiper motors with 5/8" shaft diameter. Compatible with 1.5”, 2.5” and 3.5” shaft lengths. Constructed of corrosion...
    Part Number:
    354-413114S1
    Availability:
    In Stock - Ships same or next business day.
    Finish:
    Silver
    Shaft Size:
    5/8"
    A:
    10-7/16"-13-3/16"
    $50.75 $37.33
  • Sea-Dog Line Anchor Line Premium - 60'X1/2 302112060G/W-1

    Sea-Dog Line Anchor Line Premium - 60'X1/2 302112060G/W-1

    SEA-DOG LINE

    $60.20 $56.61
    Sea-Dog Line Anchor Line Premium - 60'X1/2 302112060G/W-1100% premium double braided nylon anchor lines have excellent flexibility and stretch to absorb shock with a soft feel.Stainless steel thimbleProfessionally splicedYacht whipped at thimble splice...
    Part Number:
    354-302112060GW1
    Availability:
    In Stock - Ships same or next business day.
    Color:
    Gold/White
    Size:
    1/2" × 60'
    $60.20 $56.61
  • 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

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.