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Orders $99 or more ship free within the contiguous U.S.
May not apply to engines or oversized orders.

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Earn up to 1.5 points for every $1 spent. That’s up to 4.5% back that you can redeem and save on future orders. Excludes engine & lower unit sales.

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Our top priority is your ultimate satisfaction, and to get you back to boating as soon as possible.

Contact a Parts Pro

Trailer Adapters & Wiring Harnesses

(104 products)

All Categories
  • Wesbar - 4-Pin Flat Trailer End Connector - 11 foot - 54000026

    Wesbar

    Wesbar - 4-Pin Flat Trailer End Connector - 11 foot - 54000026

    $80.97
    Learn More
  • 7-WAY FIFTH WHEEL ADAPTER HARNESS (TOW READY) - 20111

    Fulton

    7-WAY FIFTH WHEEL ADAPTER HARNESS (TOW READY) - 20111

    $163.98 $191.19
    Learn More
  • Pollak Corp - 7-WAY HARNESS ADAPTER,7-WAY RV HARNESS ADAPTER - 11933

    POLLAK CORP

    Pollak Corp - 7-WAY HARNESS ADAPTER,7-WAY RV HARNESS ADAPTER - 11933

    $50.26
    Learn More
  • Sea Choice - 7Way Round to 5Way Flat Adapter With Lead - 52981

    SEACHOICE

    Sea Choice - 7Way Round to 5Way Flat Adapter With Lead - 52981

    $17.76 $19.09
    Learn More
  • Seachoice - 7 Way Trailer Connector - 13881

    SEACHOICE

    Seachoice - 7 Way Trailer Connector - 13881

    $24.62 $26.49
    Learn More
  • Seachoice - 7 Way Trailer Connector - 13831

    SEACHOICE

    Seachoice - 7 Way Trailer Connector - 13831

    $19.33 $20.78
    Learn More
  • Seachoice - 7 Way Trailer Connector - 13821

    SEACHOICE

    Seachoice - 7 Way Trailer Connector - 13821

    $25.43 $27.31
    Learn More
  • 7-WAY ADAPTER (FULTYME RV) - 1000

    FULTYME RV

    7-WAY ADAPTER (FULTYME RV) - 1000

    $18.21 $19.99
    Learn More
  • Seachoice - 7 Way Trailer Connector - 13811

    SEACHOICE

    Seachoice - 7 Way Trailer Connector - 13811

    $20.48 $22.00
    Learn More
  • 7-WAY ADAPTER (FULTYME RV) - 1007

    FULTYME RV

    7-WAY ADAPTER (FULTYME RV) - 1007

    $18.57 $20.99
    Learn More
  • Wesbar - 7-Way Flat Pin to 5-Flat Adapter w/LED Lamp - Out By-Pass for European Vehicles - 20141

    Wesbar

    Wesbar - 7-Way Flat Pin to 5-Flat Adapter w/LED Lamp - Out By-Pass for European Vehicles - 20141

    $20.72 $21.29
    Learn More
  • Sea Choice - 7Way Round USCar Style ConnectorCar Side, Heavy Duty - 57861

    SEACHOICE

    Sea Choice - 7Way Round USCar Style ConnectorCar Side, Heavy Duty - 57861

    $7.22
    Learn More
  • Optronics - Optronics A57WBP 7-Way Round Blade to 5-Way Flat Pin Connector Adapter 16" Cable - A57WBP

    OPTRONICS

    Optronics - Optronics A57WBP 7-Way Round Blade to 5-Way Flat Pin Connector Adapter 16" Cable - A57WBP

    $18.26 $19.49
    Learn More
  • Pollak Corp - 7-5 WAY ADAPTER,7-WAY TO 5 WAY CONNECTOR ADAPTER - 12718EP

    POLLAK CORP

    Pollak Corp - 7-5 WAY ADAPTER,7-WAY TO 5 WAY CONNECTOR ADAPTER - 12718EP

    $15.05
    Learn More
  • Seachoice - 48" Trailer Wire Harness Extension - 13991

    SEACHOICE

    Seachoice - 48" Trailer Wire Harness Extension - 13991

    $15.95 $17.12
    Learn More
  • Seachoice - 48" Trailer Wire Harness Extension - 13931

    SEACHOICE

    Seachoice - 48" Trailer Wire Harness Extension - 13931

    $16.17 $17.38
    Learn More
  • 6-WAY ROUND TO 4-FLAT ADAPTER (FULTYME) - 2004

    FULTYME RV

    6-WAY ROUND TO 4-FLAT ADAPTER (FULTYME) - 2004

    $10.03 $10.99
    Learn More
  • Sea Choice - 7Way RV Style Connector to 6Way Round and 5Way Flat Adapter - 58101

    SEACHOICE

    Sea Choice - 7Way RV Style Connector to 6Way Round and 5Way Flat Adapter - 58101

    $20.90 $21.55
    Learn More
  • Sea Choice - 6 Way Round to 4 Flat Trailer Wiring Adapter - 57731

    SEACHOICE

    Sea Choice - 6 Way Round to 4 Flat Trailer Wiring Adapter - 57731

    $11.00 $11.81
    Learn More
  • 7-WAY BLADE TO 6-WAY ROUND AND 5-WAY FLAT ADAPTER (FULTYME) - 2033

    FULTYME RV

    7-WAY BLADE TO 6-WAY ROUND AND 5-WAY FLAT ADAPTER (FULTYME) - 2033

    $28.60
    Learn More
  • TRAILER WIRING MOUNTING BRACKET (FULTYME) - 2027

    FULTYME RV

    TRAILER WIRING MOUNTING BRACKET (FULTYME) - 2027

    $6.69
    Learn More
  • TRAILER WIRING MOUNTING BRACKET (FULTYME) - 2001

    FULTYME RV

    TRAILER WIRING MOUNTING BRACKET (FULTYME) - 2001

    $1.83 $3.99
    Learn More
  • Sea Choice - Adapter, 7Way to Single 12V Accessory Port - 58071

    SEACHOICE

    Sea Choice - Adapter, 7Way to Single 12V Accessory Port - 58071

    $7.93 $7.95
    Learn More
  • 7-WAY TO SINGLE 12V ACCESSORY PORT (FULTYME) - 2030

    FULTYME RV

    7-WAY TO SINGLE 12V ACCESSORY PORT (FULTYME) - 2030

    $10.71
    Learn More
  • Pollak Corp - 7-Way to 6-Way Connector Adapter - 12719EP

    POLLAK CORP

    Pollak Corp - 7-Way to 6-Way Connector Adapter - 12719EP

    $8.41
    Learn More
  • Attwood Marine - Complete Trailer Wiring Kit - 76217

    Attwood Marine

    Attwood Marine - Complete Trailer Wiring Kit - 76217

    $20.55 $21.19
    Learn More
  • Wesbar Vehicle/Trailer Adapter - 7-Way Blade to 5-Way Flat - 18" Wire - 707250

    Wesbar

    Wesbar Vehicle/Trailer Adapter - 7-Way Blade to 5-Way Flat - 18" Wire - 707250

    $34.62 $36.39
    Learn More
  • Boating Essentials - Trailer Wire Adapter - BE-TR-59396-DP

    T-H MARINE

    Boating Essentials - Trailer Wire Adapter - BE-TR-59396-DP

    $14.29
    Learn More
  • Boating Essentials - Trailer Wiring Adapter - BE-TR-59394-DP

    T-H MARINE

    Boating Essentials - Trailer Wiring Adapter - BE-TR-59394-DP

    $8.49
    Learn More
  • Boating Essentials - 4-Way Trunk Side Trailer Wire Connector - BE-TR-59380-DP

    T-H MARINE

    Boating Essentials - 4-Way Trunk Side Trailer Wire Connector - BE-TR-59380-DP

    $7.59
    Learn More
  • Boating Essentials - 4-Way Vehicle End Trailer Connector - BE-TR-59377-DP

    T-H MARINE

    Boating Essentials - 4-Way Vehicle End Trailer Connector - BE-TR-59377-DP

    $5.59
    Learn More
  • Boating Essentials - 12 Volt Power Socket - BE-EL-51416-DP

    T-H MARINE

    Boating Essentials - 12 Volt Power Socket - BE-EL-51416-DP

    $6.59
    Learn More

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PartsVu offers a full range of Boat Trailer Parts and Accessories to help you maintain your trailer. Follow these links to find: Boat Trailer Lights; Boat Trailer Bow Rollers & Stops; Trailer Adapters & Wiring Harnesses; Boat Trailer Jacks; Boat Trailer Hubs, Brakes & Bearings; Boat Trailer Balls & Couplers; Boat Trailer Hitches; Boat Trailer Accessories, Chocks & Tires; Boat Trailer Hardware, Brackets, Springs & Bolts; Boat Trailer Guides & Poles; Boat Trailer Bunk, Boards & Components; Boat Trailer Straps, Winches & Safety Chains.

Everything you need to know about wiring a Boat Trailer is featured in this article from the PartsVU Exchange.

Here's some great information about how to secure your boat trailer safely for the ride home.

Check out all of the great Boat Trailering Tips & Resources available at the PartsVU Exchange.

PartsVu is proud to carry a range of trailer accessories including trailer adapters and trailer wiring harnesses from leading manufacturers such as Seachoice, Wesbar, Sierra, RV Pigtails, Pollak Corporation, Hopkins Manufacturing, Attwood Marine, and others.