SKU: 21354420017

CURT 57186 - 4-Way Flat Electrical Adapter with Brake Controller Wiring

Sale price$86.40 Regular price$96.00
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Ships within 48 hours · Estimated delivery Jul 31 - Aug 5

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Description

CURT 57186 - 4-Way Flat Electrical Adapter with Brake Controller WiringThere are several different types of connectors used to supply power from a tow vehicle's electrical system to a trailer's wiring system. Some trailers only need the bare essentials running lights, brake lights and turn signals while others require a connection for reverse lights, electric brakes and auxiliary power. With connectors ranging from simple to complex, it may be the case that the connection between your vehicle and your trailer is not a

There are several different types of connectors used to supply power from a tow vehicle's electrical system to a trailer's wiring system. Some trailers only need the bare essentials -- running lights, brake lights and turn signals -- while others require a connection for reverse lights, electric brakes and auxiliary power. With connectors ranging from simple to complex, it may be the case that the connection between your vehicle and your trailer is not a perfect match. For example, your truck may be equipped with a 6-way round socket, but your trailer may have a 4-way flat plug. For this very common problem, CURT offers a quick and simple solution in the form of an electrical adapter. An adapter is an electrical device that allows a connection to be made between a mismatched trailer plug and vehicle socket. It easily plugs in your vehicle's electrical socket and usually requires no additional wiring. CURT offers an array of adapters to accommodate most types of plugs and sockets, including 4-way flat, 4-way round, 5-way flat, 6-way round, 7-way RV blades and more. This electrical adapter is designed to adapt a 4-way flat vehicle socket to fit a 7-way RV blade trailer plug. It also includes wiring and electrical components to splice in and route a trailer brake controller connection from the cab of the vehicle. All CURT wiring and electrical products come with a one-year limited warranty to give you the assurance you need to tow with confidence.

Trailer Wiring Connector Adapter; 4-Way Flat Car End to 7-Way Blade Trailer End; Includes Wiring For Brake Controller

Features & Benefits

  • Slit Loom Keeps Wires Contained And Well Protected
  • Spring-Loaded Dust Cover Keeps Connector Clean When Not In Use
  • 7-Way Connects Tail, Brake, Reverse, Turn Signals, Brakes And Auxiliary Power
  • Adapts A 4-Way Flat Vehicle Socket To Fit 7-Way RV Blade Trailer Plugs
  • Simple Plug-And-Play Design For Easy Installation
  • Limited 1 Year Warranty

Attributes

  • End Type: 7 Blade To 4 Flat
  • Color: Black

Additional Attributes:

 

  • GTIN: 612314571864
  • Parcel Allowed - XA: Yes
  • Finish - XA: N/A
  • Box Width in Inches - XA: 0
  • Tariff 301 - XA: No
  • Shipping Weight - XA: 2.550
  • Class ID: 11
  • Box Height in Inches - XA: 0
  • Retail Height - XA: 3.000
  • Item Width - XA: 0.000
  • Product Weight - XA: 0.000
  • Rate Class - XA: 70.0
  • Retail Length - XA: 11.000
  • Retail Width - XA: 9.000
  • Item Length - XA: 0.000
  • Box Length in Inches - XA: 0
  • Item Height - XA: 0.000
  • Warranty: One-Year Limited Warranty
  • Item Class - XA: CME

Packaging:

 

  • Quantity of Each: 1
  • Package UOM: EA
  • Dimension: 11.000 x 9.000 x 3.000 inches
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 21354420017

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Reviewed in the United States on February 28, 2026
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Anonymous
Omaha, US
★★★★★ 5
Great Value!
Color: Tall Set - Black White
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Reviewed in the United States on December 31, 2025
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MM72
New York, US
★★★★★ 3
Defective coarseness adjuster
Color: Tall Set - Black White
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