CURT 7-Way RV Blade Replacement Socket for USCAR Vehicles — Black Plastic, Spring-Loaded Dust Cover

The CURT 55415 is a durable 7-way RV blade replacement socket built to plug directly into a USCAR vehicle outlet, restoring full trailer lighting, braking and auxiliary power connections.

Whether you tow occasionally or regularly, a reliable vehicle-side connector is essential for safe trailer operation. The CURT 55415 replaces worn or damaged vehicle-end sockets and is made to fit USCAR-style outlets found on many Ford, GM and Nissan models. Constructed from rust-free black plastic and fitted with a spring-loaded dust cover, this female 7-pin socket keeps electrical contacts protected and provides a standard RV blade interface for tail lights, turn signals, electric brakes, reverse lights, auxiliary 12V power and ground.

How does this socket restore my trailer’s electrical functions?

Install the CURT 55415 into the vehicle’s USCAR socket to re-establish all seven standard trailer circuits from the vehicle to the trailer. It provides consistent contact for lighting, braking and auxiliary power without splicing or rewiring your vehicle.

• Direct plug-in to USCAR-equipped vehicle socket — no cutting or splicing required.
• Seven-blade female socket supplies lighting, brakes, reverse, 12V and ground.
• Spring-loaded cover protects pins from moisture and debris when not in use.

Will this CURT connector fit my vehicle’s towing plug?

This part is designed specifically for vehicles equipped with a USCAR-style outlet. Confirm the vehicle uses a USCAR female receptacle before purchasing to ensure a correct, hassle-free fit.

• Fits Ford, GM and Nissan models that use USCAR sockets—verify application details.
• No adapter is needed when mating with a matching USCAR vehicle socket.
• Intended as the vehicle-side (female) replacement component for standard blade-style 7-pin trailers.

How durable and weather-resistant is the CURT 55415?

The housing is molded from black plastic that won’t rust, and the integrated spring-loaded cover reduces exposure to water and dirt. These features help maintain reliable electrical contact and extend service life under typical towing conditions.

• Rust-free plastic construction resists corrosion compared to metal housings.
• Spring-loaded dust cover seals pins when not connected to a trailer.
• Compact, vehicle-side design minimizes snagging and exposure while driving.

How easy is installation and what tools are required?

Installation is intended to be simple because this unit plugs directly into the USCAR vehicle socket—no cutting, splicing, or rewiring is necessary. In most cases, minimal effort and basic hand tools (if any) are required to secure the connector in place.

• No electrical cutting or splicing — plugs directly into factory USCAR outlet.
• Typical installation requires only access to the vehicle socket and basic tools to fasten as needed.
• Clear mating interface makes connecting your trailer quick and repeatable.

Who is this for: The CURT 55415 is aimed at vehicle owners who tow trailers with a standard 7-blade blade plug and whose tow vehicle uses a USCAR-style outlet. It's a practical replacement for drivers who need a weather-protected, OEM-compatible vehicle-side socket for lighting, braking and auxiliary trailer power, and for anyone who wants a straightforward, non-invasive installation without cutting into vehicle wiring.