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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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Trailer Adapters & Wiring Harnesses

(115 products)

All Categories
  • Sea Choice - 5Way Flat Connector12" - 57881

    SEACHOICE

    Sea Choice - 5Way Flat Connector12" - 57881

    $11.66 $12.53
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  • Sea Choice - 5Way Flat Connector48" - 57871

    SEACHOICE

    Sea Choice - 5Way Flat Connector48" - 57871

    $13.12 $14.09
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  • 5-WAY FLAT CONNECTOR (FULTYME) - 2019

    FULTYME RV

    5-WAY FLAT CONNECTOR (FULTYME) - 2019

    $11.00
    Learn More
  • 5-WAY FLAT CONNECTOR (FULTYME) - 2010

    FULTYME RV

    5-WAY FLAT CONNECTOR (FULTYME) - 2010

    $11.98
    Learn More
  • Anderson Marine - Trailer-Trunk 30" Extension - E5401

    ANDERSON

    Anderson Marine - Trailer-Trunk 30" Extension - E5401

    $23.91
    Learn More
  • Seachoice - 4 Pole Flat Female Trailer Connector For Car Side - 13901

    SEACHOICE

    Seachoice - 4 Pole Flat Female Trailer Connector For Car Side - 13901

    $7.21 $7.73
    Learn More
  • TRAILER CONNECTOR - 4 PIN (FULTYME RV) - 1006

    FULTYME RV

    TRAILER CONNECTOR - 4 PIN (FULTYME RV) - 1006

    $12.84
    Learn More
  • Seachoice - 4 Pole Flat Male Trailer Connector For Trailer Side - 13891

    SEACHOICE

    Seachoice - 4 Pole Flat Male Trailer Connector For Trailer Side - 13891

    $7.03 $7.56
    Learn More
  • TRAILER CONNECTOR - 4 PIN (FULTYME RV) - 1009

    FULTYME RV

    TRAILER CONNECTOR - 4 PIN (FULTYME RV) - 1009

    $12.02
    Learn More
  • TRAILER CONNECTOR - 4 PIN (FULTYME RV) - 1008

    FULTYME RV

    TRAILER CONNECTOR - 4 PIN (FULTYME RV) - 1008

    $7.19
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  • Seachoice - 4 Pole Flat Trailer Connector Set Includes Car Side And Trailer Side - 13871

    SEACHOICE

    Seachoice - 4 Pole Flat Trailer Connector Set Includes Car Side And Trailer Side - 13871

    $9.53 $10.21
    Learn More
  • 4-WAY FLAT FACTORY TOW HARNESS (FULTYME) - 2006

    FULTYME RV

    4-WAY FLAT FACTORY TOW HARNESS (FULTYME) - 2006

    $16.50
    Learn More
  • Sea Choice - 4Way Flat Factory Tow Harness For Current GM Trucks & SUV's With USCar 7Way Harness - 57831

    SEACHOICE

    Sea Choice - 4Way Flat Factory Tow Harness For Current GM Trucks & SUV's With USCar 7Way Harness - 57831

    $12.03 $12.15
    Learn More
  • Pollak Corp - 7WAY RV TO 4WAY FLAT FLEX ADPT,7-WAY RV TO 4-WAY FLAT FLEX ADAPTER - 12743EV

    POLLAK CORP

    Pollak Corp - 7WAY RV TO 4WAY FLAT FLEX ADPT,7-WAY RV TO 4-WAY FLAT FLEX ADAPTER - 12743EV

    $20.09
    Learn More
  • Sea Choice - 7Way Automotive Style to 4Flat - 58091

    SEACHOICE

    Sea Choice - 7Way Automotive Style to 4Flat - 58091

    $11.79 $12.67
    Learn More
  • 7-WAY TRAILER WIRING ADAPTERS (FULTYME) - 2032

    FULTYME RV

    7-WAY TRAILER WIRING ADAPTERS (FULTYME) - 2032

    $10.78
    Learn More
  • 7-WAY TRAILER WIRING ADAPTERS (FULTYME) - 2031

    FULTYME RV

    7-WAY TRAILER WIRING ADAPTERS (FULTYME) - 2031

    $13.19
    Learn More
  • Sea Choice - 7Way RV Style to 6Flat - 58081

    SEACHOICE

    Sea Choice - 7Way RV Style to 6Flat - 58081

    $14.34 $15.40
    Learn More
  • Sea Choice - 7Way RV Style to 5Flat - 58061

    SEACHOICE

    Sea Choice - 7Way RV Style to 5Flat - 58061

    $13.59 $17.65
    Learn More
  • Sea Choice - 7Way RV Style to 4Flat - 58051

    SEACHOICE

    Sea Choice - 7Way RV Style to 4Flat - 58051

    $11.67 $15.15
    Learn More
  • 7-WAY ROUND RV-STYLE CONNECTORS (FULTYME) - 2015

    FULTYME RV

    7-WAY ROUND RV-STYLE CONNECTORS (FULTYME) - 2015

    $13.97
    Learn More
  • Sea Choice - 7Way Round RV Style Trailer ConnectorTrailer Side - 57891

    SEACHOICE

    Sea Choice - 7Way Round RV Style Trailer ConnectorTrailer Side - 57891

    $8.22 $8.84
    Learn More
  • Sea Choice - 7Way Round RV Style Trailer ConnectorCar Side with Sealed Door - 57981

    SEACHOICE

    Sea Choice - 7Way Round RV Style Trailer ConnectorCar Side with Sealed Door - 57981

    $9.79 $10.52
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  • Sea Choice - 2 Pole Molded Line Connector With 12" Lead On Each Side - 13841

    SEACHOICE

    Sea Choice - 2 Pole Molded Line Connector With 12" Lead On Each Side - 13841

    $5.66 $6.08
    Learn More
  • MOLDED LINE CONNECTOR (FULTYME RV) - 3068

    FULTYME RV

    MOLDED LINE CONNECTOR (FULTYME RV) - 3068

    $6.36 $6.99
    Learn More
  • Pollak Corp - 7WAY RV TO 6WAY ROUND ADAPTER,7-WAY RV TO 6-WAY ROUND ADAPTER - 12719EV

    POLLAK CORP

    Pollak Corp - 7WAY RV TO 6WAY ROUND ADAPTER,7-WAY RV TO 6-WAY ROUND ADAPTER - 12719EV

    $16.52
    Learn More
  • Pollak Corp - 7WAY RV TO 4WAY FLAT ADAPTER,7-WAY RV TO 4-WAY FLAT ADAPTER - 12716EV

    POLLAK CORP

    Pollak Corp - 7WAY RV TO 4WAY FLAT ADAPTER,7-WAY RV TO 4-WAY FLAT ADAPTER - 12716EV

    $11.53
    Learn More
  • 6 AND 7-WAY ROUND CONNECTOR ATTACHMENT BRACKET WITH CLAMP (FULTYME) - 2026

    FULTYME RV

    6 AND 7-WAY ROUND CONNECTOR ATTACHMENT BRACKET WITH CLAMP (FULTYME) - 2026

    $12.41
    Learn More
  • Seachoice - Flat 4 Pole Trailer "Y" Harness With Marine-grade Tinned Wire - 13961

    SEACHOICE

    Seachoice - Flat 4 Pole Trailer "Y" Harness With Marine-grade Tinned Wire - 13961

    $45.34 $48.71
    Learn More
  • Seachoice - Flat 4 Pole Trailer "Y" Harness - 13941

    SEACHOICE

    Seachoice - Flat 4 Pole Trailer "Y" Harness - 13941

    $40.38 $43.37
    Learn More
  • Attwood Marine - 7 to 4 Way Trailer Plug Adapter - 141357

    Attwood Marine

    Attwood Marine - 7 to 4 Way Trailer Plug Adapter - 141357

    $12.64
    Learn More
  • TRAILER ADAPTER (FULTYME RV) - 1004

    FULTYME RV

    TRAILER ADAPTER (FULTYME RV) - 1004

    $14.98
    Learn More
  • 7-WAY TRAILER ADAPTERS (ATTWOOD) - 141347

    Attwood Marine

    7-WAY TRAILER ADAPTERS (ATTWOOD) - 141347

    $15.66 $15.79
    Learn More
  • TRAILER ADAPTER (FULTYME RV) - 1005

    FULTYME RV

    TRAILER ADAPTER (FULTYME RV) - 1005

    $10.67
    Learn More
  • Wesbar - 5-Flat Trailer End Connector - 4' Wishbone Harness - 4' Ground - 4' Auxiliary - 707283

    Wesbar

    Wesbar - 5-Flat Trailer End Connector - 4' Wishbone Harness - 4' Ground - 4' Auxiliary - 707283

    $17.26
    Learn More
  • Wesbar - 4-Flat Car End Connector - 48" Long - 18" Ground - 707275

    Wesbar

    Wesbar - 4-Flat Car End Connector - 48" Long - 18" Ground - 707275

    $20.24
    Learn More

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.