Quickly verify the electrical output of a vehicle-side 7-way RV blade trailer connector. Color-coded, labeled LEDs make it easy to check lighting, electric brake, reverse, and auxiliary power circuits.
The Curt 58273 provides a fast way to diagnose a vehicle-side 7-way RV blade trailer wiring connection. Simply plug the tester into the vehicle socket and activate each electrical function to verify that the corresponding circuit is receiving power.
Each function has its own clearly labeled, color-coded LED for easier identification during testing. Integrated resistors provide compatibility with Smart Trailer Tow Connection systems, while the adjustable LED head can be rotated to improve visibility when the vehicle's 7-way socket is mounted at an awkward angle.
Individual labeled indicators make each trailer wiring circuit easy to identify
Plugs directly into a standard vehicle-side 7-way RV blade socket
Integrated resistors provide compatibility with Smart Trailer Tow Connection systems
LED display can be rotated for easier viewing based on socket orientation
Curt 58273 tests electrical output from the tow vehicle's 7-way RV blade socket. It does not directly test or repair trailer-side wiring. A successful vehicle-side test can help determine whether an electrical problem is located on the vehicle or trailer.
In The Package: • Curt 58273 7-Way RV Blade LED Connector Tester
Curt 58273 supersedes the discontinued Curt 58271 tester. The newer design adds color-coded LEDs and integrated resistors for Smart Trailer Tow Connection compatibility.