Wiring Adapters & Extensions

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  1. Curt 58080 6-Way Round Trailer End, Die Cast
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    $5.24
  2. Curt 57620 6-Way Round Adapter to 4-Way Flat
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    $5.48
  3. Curt 58540 5-Way Flat Trailer Wiring Harness, 48" Inch, Fits Trailer
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    $7.50
  4. Curt 58070 4-Way Round Connector Socket (Vehicle Side), Die-cast
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    $8.27
  5. Curt 58530 5-Way Flat Vehicle Wiring Harness, 60" Inch, Fits Vehicle
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    $8.51
  6. Curt 58090 6-Way Round Vehicle End, Die-cast
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    $8.83
  7. Curt 58050 4-Way Flat Connector Plug & Socket with 72" inch Wires
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    $9.14
  8. Curt 58550 5-Way Flat Vehicle Wiring Harness, 72" Inch, Fits Vehicle & Trailer
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    $9.79
  9. Curt 58051 4-Way Flat Vehicle Wiring Harness, 72" Inch Long, Fits Vehicle & Trailer
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    $9.83
  10. Curt 57245 7-Way RV Adapter to 4-Way Flat w/ Dust Cover
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    $10.13
  11. Curt 57187 4-Way to 5-Way Flat Adapter for Boat Trailers with Surge Brakes
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    Curt 57187 4-Way to 5-Way Flat Adapter for Boat Trailers with Surge Brakes Install Time: 30 min - Availability: Ship or Pick up at Miami Store
    • This requires an existing 4-way Flat wiring on your vehicle.
    • This electrical adapter is designed to adapt a 4-way flat vehicle socket to fit a 5-way flat trailer plug. It is specifically intended for boat trailers with surge brakes, adding in a fifth wire for the reverse lights and allowing your vehicle's 4-way flat to easily plug into your boat trailer 5-way flat. 
    $10.19
  12. Curt 55415 OEM 7-Way Twist RV Adapter Replacement
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    $13.00
  13. Curt 56415 OEM 7-Way Twist RV Adapter Replacement
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    $14.93
  14. Curt 57250 Electrical Adapter (7-Way RV Blade Vehicle to 5-Way Flat Trailer)
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    $14.99
  15. Curt 56229 OEM 7-Way Plug Replacement, USCAR Socket with 24" Wires (Vehicle Side)
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    Curt 56229 OEM 7-Way Plug Replacement, USCAR Socket with 24" Wires (Vehicle Side) Install Time: 30 min - Availability: Ship or Pick up at Miami Store
    • Replaces damaged or missing USCAR vehicle harnesses
    • Retrofits weatherproof USCAR-type 7-way to vehicles not equipped by using CURT part numbers 55415, 55515, 55664, 55774, 56514, 56515 or 57101.
    $17.00
  16. Curt 57187 4-Way to 5-Way Flat Adapter Kit for Boat Trailers with Surge Brakes (Includes: 5-Way, Bracket and Dust Cover)
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    Curt 57187 4-Way to 5-Way Flat Adapter Kit for Boat Trailers with Surge Brakes (Includes: 5-Way, Bracket and Dust Cover) Availability: Shipping Required
    • Plugs into Existing 4-Way flat connections
    • Provide a 5-way, Bracket and Dust Cover 
    • The Five Way is for Trailer That Require Reverse signal
    • Part Number: 57187, 58303, 58202
    $17.55
  17. Curt 57183 4-Way Flat Adapter to 6-Way Round, Die Cast
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    $20.10
  18. Curt 55151 Powered Converter Wiring Kit (10 Amps)
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    Curt 55151 Powered Converter Wiring Kit (10 Amps) Install Time: 20 min - Availability: Shipping Required
    • Routes power from vehicle battery to powered converter.
    • Designed for use with battery-powered electrical converters
    • 20' of 12 gauge cross-linked wire for flexible installation
    • Includes cross-linked wire, in-line fuse holder, ATC 10-amp fuse, 3/8" ring terminal, a 12-10 gauge butt connector, eight 6" cable ties and one 14-1/2" cable tie
    $20.95
  19. Curt 57185 4-Way Flat Adapter to 7-Way RV, Steel
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    $22.51
  20. Curt 57604 4-Way Flat Adapter to 6-Way Round & 4-Way Flat
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    $25.60
  21. Curt 55152 Powered Converter Wiring Kit (15 Amps)
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    Curt 55152 Powered Converter Wiring Kit (15 Amps) Install Time: 60 min - Availability: Shipping Required
    • Routes power from vehicle battery to powered converter
    • Designed for use with battery-powered electrical converters
    • 20' of 12 gauge cross-linked wire for flexible installation
    • Includes cross-linked wire, in-line fuse holder, ATC 15-amp fuse, 3/8" ring terminal, a 12-10 gauge butt connector, eight 6" cable ties and one 14-1/2" cable tie
    $26.95
  22. Curt 55664 OEM Adapter Vehicle Wiring Harness, 6-Way Round & 4- Way flat connectors
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    $27.71
  23. Curt 57020 OEM  7-Way Round & 4- Way flat connectors w/o Bracket
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    $27.99
  24. Curt 56130 Universal Vehicle Wiring Harness with 4-way Flat
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    $29.95
  25. Curt 57300 Mercedes Sprintet Factory Harness Adapter to 7-way OEM
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    Curt 57300 Mercedes Sprintet Factory Harness Adapter to 7-way OEM Install Time: 5 min - Availability: Ship or Pick up at Miami Store
    • 8-Prong Factory Harness Adapter (Rectangular 8-Prong to USCAR Socket)
    • Adapts 8-prong harness applications to fit USCAR replacement plugs
    • Fits rectangular 8-prong on Chrysler, Dodge, Freightliner, Jeep and Mitsubishi
    • Simple plug-and-play design eliminates the need for cutting or splicing
    • Slit loom keeps wires contained and well protected
    $29.95
  26. Curt 55774 OEM Adapter Vehicle Wiring Harness, 7-Way RV & 4- Way flat connectors
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    $30.52
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