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CURT 57626  
$20.99
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$0.00
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+ Sold in packs of 1x1
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$20.99
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4-Way Flat to 6-way round trailer plugs; With Tester; Plastic
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 6-way round trailer plug. Some manual wiring is required. It comes with an integrated electrical tester, a mounting bracket and all necessary hardware for a complete installation. All CURT wiring and electrical products come with a one-year limited warranty to give you the assurance you need to tow with confidence.

Features & Benefits:
  • Adapts a 4-way flat vehicle socket to fit 6-way round trailer plugs
  • Simple plug-and-play design for easy installation (some manual wiring required)
  • 6-way connects tail, brake, turn signals, electric brakes and auxiliary power
  • Integrated LED tester confirms proper vehicle and trailer electrical function
  • Spring-loaded dust cover keeps connector clean when not in use
  • Slit loom keeps wires contained and well protected
  • Metal bracket securely mounts wiring to the vehicle or trailer hitch
Which Adapter Do You Need?

Reference table showing trailer side connectors along the x axis and and vehicle side connector types along the y axis
Additional Resources

Installation Instructions
Wiring Plug Diagram

Attention California Customers - WARNING: This product can expose you to chemicals including Di(2-ethylhexyl) phthalate; which is known to the State of California to cause cancer; and Di-n-butyl phthalate; which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov


Warranty Information:
12 Months