Expert Review Video:
Combined wiring system - brake and turn signals are sent along the same wire.
Custom Fit Vehicle Wiring Specs:
Features:
This 7- and 4-pole trailer connector eliminates the need for an adapter and allows you to tow a trailer with either a 7- or 4-pole plug. Socket connects to your vehicle's OEM wiring system and mounts with included bracket.
Installation Notes:
Product intended as a factory replacement harness or socket
More Information >Custom Fit Vehicle Wiring Specs:
Features:
Quickly and easily install a 7-way and a 4-way trailer connector on your vehicle with this custom harness. Connector plugs directly into OEM tow package wiring harness - no cutting, splicing or tapping required.
Installation Notes:
For vehicles with factory tow package; may require additional components or may be used as a replacement harness
More Information >Custom Fit Vehicle Wiring Specs:
Plug-In Location:
Features:
Quickly and easily install a 4-way trailer connector on your vehicle. This T-One typically plugs directly into the back of your factory-installed 7-way connector so you can retain the 7-way and also pull a trailer that has a 4-pole flat.
Installation Notes:
Exterior mounted plug on some or all models. May require an aftermarket electrical mounting box or bracket (sold separately)
For vehicles with factory tow package; may require additional components or may be used as a replacement harness
More Information >Custom Fit Vehicle Wiring Specs:
Plug-In Location:
Features:
Quickly and easily install this custom harness to get a 7-way and a 4-way trailer connector on your vehicle. Connector plugs into OEM tow package wiring harness - no cutting or splicing required. Weathertight seal deters damage from water and debris.
More Information >Custom Fit Vehicle Wiring Specs:
Plug-In Location:
Features:
Upgrade the 7-way connection on your vehicle and trailer with this complete kit. Built-in magnets create tight connection. O-rings make a watertight seal. Face-to-face contacts mean no bent or broken terminals. Includes plug holder and dummy plug.
Installation Notes:
For vehicles with factory tow package; may require additional components or may be used as a replacement harness
More Information >Custom Fit Vehicle Wiring Specs:
Plug-In Location:
Features:
Replace the existing 7-way on your vehicle with this socket. Built-in magnet creates tight connection with EZ Connector trailer-end plug (sold separately). Face-to-face contacts mean no bent or broken terminals. O-ring on lid makes a watertight seal.
Installation Notes:
For vehicles with factory tow package; may require additional components or may be used as a replacement harness
This wiring is intended to be used with the 319-S7-07 trailer side plug, which is sold separately.
If your trailer has conventional 7-way wiring, this wiring harness is made compatible with an EZConnect Adapter, which is sold separately.
More Information >Custom Fit Vehicle Wiring Specs:
Plug-In Location:
Features:
Replace the existing 7-way on your vehicle with this socket. Built-in magnet creates tight connection with EZ Connector trailer-end plug (sold separately). Face-to-face contacts mean no bent or broken terminals.
Installation Notes:
For vehicles with factory tow package; may require additional components or may be used as a replacement harness
This wiring is intended to be used with the 319-R7-07 trailer side plug, which is sold separately.
If your trailer has conventional 7-way wiring, this wiring harness is made compatible with an EZConnect Adapter, which is sold separately.
More Information >Trailer Wiring Specs:
Plug-In Location:
Features:
This 7-pole, RV-style trailer connector replaces your damaged 7-way socket at the rear of your vehicle. Spring-loaded cover keeps out moisture and debris.
More Information >Custom Fit Vehicle Wiring Specs:
Features:
Replace the worn or damaged 7-way, RV-style trailer connector on your tow vehicle with this sealed, vehicle-end socket. Spring-loaded dust cover protects the copper-plated terminals. Easy installation - plugs into OEM port.
Installation Notes:
Product intended as a factory replacement harness or socket
More Information >Custom Fit Vehicle Wiring Specs:
Plug-In Location:
Features:
Quickly and easily install a 5-way trailer connector on your vehicle with this custom harness. T-connector plugs directly into OEM tow package wiring harness - no cutting, splicing or tapping required. Ideal for towing a trailer with surge brakes.
More Information >Custom Fit Vehicle Wiring Specs:
Plug-In Location:
Features:
Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. Connector plugs directly into OEM tow package port - no cutting, splicing or tapping required.
Installation Notes:
For vehicles with factory tow package; may require additional components or may be used as a replacement harness
More Information >Custom Fit Vehicle Wiring Specs:
Plug-In Location:
Features:
Quickly and easily install a 5-way trailer connector on your vehicle with this custom harness. Connector plugs directly into OEM tow package port - no cutting, splicing or tapping required. Ideal for towing a trailer with surge brakes.
More Information >Custom Fit Vehicle Wiring Specs:
Plug-In Location:
Features:
Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-connector plugs directly into 7-way OEM tow package wiring harness - no cutting, splicing or tapping required.
Installation Notes:
For vehicles with factory tow package; may require additional components or may be used as a replacement harness
More Information >Custom Fit Vehicle Wiring Specs:
Features:
Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-connector plugs directly into OEM tow package wiring harness - no cutting or splicing required.
Installation Notes:
For vehicles with factory tow package; may require additional components or may be used as a replacement harness
More Information >Custom Fit Vehicle Wiring Specs:
Features:
Quick-splice wire taps let you splice this 4-way flat trailer connector into your vehicle. Bonded wires are color coded to make installation a little easier.
More Information >Custom Fit Vehicle Wiring Specs:
Installation Notes:
For vehicles with factory tow package; may require additional components or may be used as a replacement harness
More Information >Custom Fit Vehicle Wiring Specs:
Features:
This universal, splice-in wiring kit includes a 4-way flat connector, circuit tester, 72" of bonded wire, and 4 wire tap connectors. Color-coded, bonded wires have functions printed on them to make installation easier.
More Information >Videos
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Expert Answers
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The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…
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