Trailer-&-Towing-Accessories > Towing-Electrical > Trailer-Wire-Connections > Trailer-Plug-Adapters

7-Way RV Blade to 4-Way Flat Trailer Plug Adapter

Effortlessly join your socket and molded connectors with a trailer plug adapter. This one-piece molded trailer connector adapter allows you to convert a 7-way RV Blade-style trailer socket into a 4-way flat molded trailer connector.


  • Innovatively designed one-piece molded adapter.
  • Manufactured from Nylon material to resist corrosion.
Item Description Price
1+ I Ext. Price I 50+ Ext. Price I I 100+ Ext. Price I
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73012 Trailer Adapter, 7-Way RV Blade Style to 4-Way Flat Molded Connector (1 MIN)
12.13 12.13 I 10.72300 10.72 I 8.77700 8.78
1 EA

CURT LED Electrical Adapter (7-Way RV Blade Vehicle to 4 or 5-Way Flat Trailer)

LED Electrical Adapter (7-Way RV Blade Vehicle to 4 or 5-Way Flat Trailer)


  • Adapts a 7-way RV blade vehicle socket to fit 4-way or 5-way flat trailer plugs
  • Enables vehicles with a 7-way RV blade socket to recognize LED trailer lights
  • Built-in, integrated resistors for computers that don't recognize LED lights
  • 4-way flat output connects tail lights, brake lights and turn signals
  • 5-way flat adds connection for reverse lights
  • Simple plug-and-play design eliminates the need for cutting or splicing
  • All CURT items have a 15% restocking fee
Item Description Price Qty in
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In Stock Add to Cart
CURT57004 CURT 57004, LED-Compatible 7-Way RV Blade Vehicle-Side to 4-Way Flat Trailer-Side Trailer Wiring Adapter (1 MIN) 19.97 1 EA Call

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

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


  • Adapts a 7-way RV blade vehicle socket to fit 4-way flat trailer plugs
  • Simple plug-and-play design eliminates the need for cutting or splicing
  • 4-way flat output connects tail lights, brake lights and turn signals
  • All CURT items have a 15% restocking fee
Item Description Price Qty in
Package
In Stock Add to Cart
CURT57240 CURT 57240, 7-Way RV Blade Vehicle-Side to 4-Way Flat Trailer Wiring Adapter (1 MIN) 5.81 1 EA Call
CURT57241 CURT 57241, 7-Way RV Blade Vehicle-Side to 4-Way Flat Trailer Wiring Adapter (1 MIN) 7.96 1 EA Call

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

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


  • Adapts a 7-way RV blade vehicle socket to fit 4-way flat trailer plugs
  • Simple plug-and-play design eliminates the need for cutting or splicing
  • 4-way flat output connects tail lights, brake lights and turn signals
  • LED tester confirms proper function of vehicle-side wiring connector
  • Dust cover keeps connector clean when not in use
  • All CURT items have a 15% restocking fee
Item Description Price Qty in
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CURT57245 CURT 57245, 7-Way RV Blade Vehicle-Side to 4-Way Flat Trailer Wiring Adapter with Tester (1 MIN) 9.96 1 EA Call

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

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


  • Adapts 7-way RV blade vehicle socket to fit 4-way flat trailer plugs
  • Adapts 7-way RV blade vehicle socket to fit 4-way flat trailer plugs
  • All CURT items have a 15% restocking fee
  • All CURT items have a 15% restocking fee
  • UV-resistant coiled cable extends up to 5' without scraping the ground
  • UV-resistant coiled cable extends up to 5' without scraping the ground
  • Simple plug-and-play design eliminates the need for cutting or splicing
  • Simple plug-and-play design eliminates the need for cutting or splicing
  • 4-way flat output connects tail lights, brake lights and turn signals
  • 4-way flat output connects tail lights, brake lights and turn signals
  • Durable molded plastic housing resists corrosion
  • Durable molded plastic housing resists corrosion
Item Description Price Qty in
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CURT57271 CURT 57271, 5-Foot 7-Way RV Blade Vehicle-Side to 4-Way Flat Trailer Wiring Adapter Extension Harness (1 MIN) 28.42 1 EA Call
CURT57280 CURT 57280, 8’ Electrical Adapter Harness (7-Way RV Blade Vehicle To 4-Way Flat Trailer)  (1 MIN) 36.84 1 EA Call

CURT Adapter with Backup Alarm (7-Way RV Blade Vehicle to 4-Way Flat Trailer)

Adapter with Backup Alarm (7-Way RV Blade Vehicle to 4-Way Flat Trailer)


  • Adapts a 7-way RV blade vehicle socket to fit 4-way flat trailer plugs
  • Simple plug-and-play design eliminates the need for cutting or splicing
  • 4-way flat output connects tail lights, brake lights and turn signals
  • Integrated backup alarm sounds when vehicle is in reverse
  • Dust cover keeps connector clean when not in use
  • All CURT items have a 15% restocking fee
Item Description Price Qty in
Package
In Stock Add to Cart
CURT57724 CURT 57724, 7-Way RV Blade Vehicle-Side to 4-Way Flat Trailer Wiring Adapter with Backup Alarm (1 MIN) 16.75 1 EA Call
Prop65 Warning