Trailer-&-Towing-Accessories > Trailer-Wire-Connections > Trailer-Connector-Adapters

CURT Electrical Adapter (4-Way Flat Vehicle to 7-Way RV Blade Trailer)

Electrical Adapter (4-Way Flat Vehicle to 7-Way RV Blade Trailer)


  • Adapts a 4-way flat vehicle socket to fit 7-way RV blade trailer plugs
  • 7-way connects tail, brake, reverse, turn signals, brakes and auxiliary power
  • Spring-loaded dust cover keeps connector clean when not in use
  • Slit loom keeps wires contained and well protected
  • All CURT items have a 15% restocking fee
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CURT57184 CURT 57184, 4-Way Flat Vehicle-Side to 7-Way RV Blade Trailer Wiring Adapter (1 MIN) 18.44 1 EA

CURT Electrical Adapter with Bracket (4-Way Flat Vehicle to 7-Way RV Blade Trailer)

Electrical Adapter with Bracket (4-Way Flat Vehicle to 7-Way RV Blade Trailer)


  • Adapts a 4-way flat vehicle socket to fit 7-way RV blade trailer plugs
  • 7-way connects tail, brake, reverse, turn signals, brakes and auxiliary power
  • Constructed from high-strength steel
  • Spring-loaded dust cover keeps connector clean when not in use
  • Slit loom keeps wires contained and well protected
  • Steel bracket securely mounts wiring to the vehicle or trailer hitch
  • All CURT items have a 15% restocking fee
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CURT57185 CURT 57185, 4-Way Flat Vehicle-Side to 7-Way RV Blade Trailer Wiring Adapter (1 MIN) 22.13 1 EA

CURT 4-Way Flat Electrical Adapter with Brake Controller Wiring

4-Way Flat Electrical Adapter with Brake Controller Wiring


  • Adapts a 4-way flat vehicle socket to fit 7-way RV blade trailer plugs
  • Simple plug-and-play design for easy installation (some manual wiring required)
  • Includes wiring and components to splice in a brake controller connection
  • 7-way connects tail, brake, reverse, turn signals, brakes and auxiliary power
  • Spring-loaded dust cover keeps connector clean when not in use
  • Slit loom keeps wires contained and well protected
  • All CURT items have a 15% restocking fee
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CURT57186 CURT 57186, 4-Way Flat Vehicle-Side to 7-Way RV Blade Trailer Adapter with Brake Controller Wiring (1 MIN) 80.29 1 EA

CURT Electrical Adapter with Tester (4-Way Flat Vehicle to 7-Way RV Blade Trailer)

Electrical Adapter with Tester (4-Way Flat Vehicle to 7-Way RV Blade Trailer)


  • Adapts a 4-way flat vehicle socket to fit 7-way RV blade trailer plugs
  • Simple plug-and-play design for easy installation (some manual wiring required)
  • 7-way connects tail, brake, reverse, turn signals, brakes and auxiliary power
  • Integrated LED tester confirms proper function of vehicle-side wiring connector
  • 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
  • All CURT items have a 15% restocking fee
Item Description Price Qty in
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CURT57676 CURT 57676, 4-Way Flat Vehicle-Side to 7-Way RV Blade Trailer Wiring Adapter with Tester (1 MIN) 30.90 1 EA
Prop65 Warning