Plugs and Sockets

Original Equipment Replacement Connectors

CURT Dual-Output Electrical Adapter with Tester (Adds 6-Way Round to 4-Way Flat) Trailer Wiring Adapter ConnectorCURT In Stock

Integrated LED tester confirms proper vehicle-side wiring function
Includes dust covers, slit loom, metal mounting bracket
Requires some manual wiring; one-year limited warranty

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CURT 57626 4-Way Flat Vehicle-Side to 6-Way Round Trailer Wiring Adapter with TesterCURT In Stock

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CURT Dual-Output Electrical Adapter with Tester (Adds 7-Way RV Blade to 4-Way Flat) Trailer Wiring Adapter ConnectorCURT In Stock

Integrated LED tester confirms proper vehicle-side wiring function
Includes dust covers, mounting bracket, and all hardware
Requires manual wiring; slit loom protects wire routing

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

Integrated LED tester verifies vehicle-side wiring connector function
Spring-loaded dust cover protects connector when disconnected
Includes metal mounting bracket and installation hardware
Requires some manual wiring; simple plug-and-play design

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Match your tow vehicle's connector to your trailer with the right blade count, whether that's a straight replacement socket, a dual-output adapter, or a USCAR-side harness extension. CURT and Hopkins parts here cover factory OE swaps and adapters that step a 4-way flat up to 6-way or 7-way RV blade configurations, some with built-in circuit testers.

Plugs and Sockets

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