Trailer Parts Superstore® sells a wide variety of Vehicle-to-Trailer Wiring Adapters & Plugs. Adapters may be used to easily mate trailers and vehicles with different end plugs. Industry wiring standards are generally used for 4, 6 & 7-pole systems, however circuit testing your system to confirm compatibility is always recommended before using an adapter.
Stock# 5177187 HOPKINS incorporates Endurance™ design features that include oversized hinges, internal grommets for enhanced weather proofing and a lid that opens 180 degrees, this connector is guaranteed to last for years of trouble free use. Multi-Tow® design feature adds multiple towing options from one connector by providing sockets for towing both 7 blade and 4 flat trailers.
Stock# 5177189 HOPKINS OEM replacement Multi-Tow® design features multiple towing options from one connector by providing sockets for towing both 7 blade and 4 flat trailers. This connector is Plug-In Simple!® with no cutting or splicing, saving you time by utilizing an OEM connector to create an exact fit for easy installation and maximum weatherproofing.
Stock# 5177155 Some boat trailers have 5-Flat connectors on them to activate the surge brake. The 47515 4-Flat to 5-Flat adapter allows you to add the reverse wire to your existing 4-Flat that allows the surge brake to release.
Stock# 5177154 HOPKINS adapter lets you use a 6-Round vehicle side connector with a 4-Flat trailer side connector. Integrated LED lights lets you know if know when wiring is functioning properly.
Stock# 5177153 HOPKINS adapter converts a 7-blade vehicle connector to a 4-flat trailer side connector. Its Nite-Glow™ function checks to see if you are getting power from the tow vehicle, and confirms you have installed the adapter properly.
Stock# 5177185 HOPKINS adapter converts a 7-blade vehicle connector to a 4 and a 5-flat trailer side connector. Its Nite-Glow™ function checks to see if you are getting power from the tow vehicle, and confirms you have installed the adapter properly. If the connector glows red, you have a solid connection. Also, includes dust cover for 4/5-Flat to help prevent corrosion.
Stock# 5177033 Plastic socket adapter utilizes existing 4-flat vehicle harness for installation. Allows vehicles wired with 4-flat connectors to be easily converted to tow Trailers with 7-RV Blade end plugs.
Stock# 5177121 Hopkins 47675 adapter is perfect for bringing 12 Volt power to back of the vehicle without eliminating the ability to tow a trailer. Adapting a 7 Blade vehicle side connector down to a 5 Flat or 4 Flat trailer connector along with 12 Volt outlet makes this a great connector for camping or outdoor enthusiasts.
Stock# 5177108 Adapter allows vehicles wired with 7-RV Blade socket to tow trailers with 4-flat connector. The LED lights verify right turn, left turn, taillights and brakes are working.
Stock# 5177134 Endurance™ 7-RV Blade Vehicle to 4-Flat Trailer Flex Adapter is one of the toughest adapters on the market. It comes with a dust cover and protected wire for added endurance as well as LED tester lights.
Stock# 5177095 Flex-Coil Nite-Glow™ adapter allows vehicles wired with 7-RV Blade socket to tow trailers with 4-flat connector. Stretches up to 3' long.
Stock# 5177097 Flex-Coil Nite-Glow™ adapter allows vehicles wired with 7-RV Blade socket to tow trailers with 5-flat connector. Stretches up to 3' long.
Stock# 5177101 Adapter allows vehicles wired with 7-RV Blade socket to tow trailers with 6-way round connector. Universal center pin can be switched to auxiliary or electric brake. Includes dust cover.
Stock# 5177041 Adapter allows vehicles wired with 7-RV Blade socket to tow trailers with 6-way round connector. Center pin designated for electric brake. Includes dust cover.
Stock# 5177100 Multi-Tow® 7:4 Adapter helps convert a tow vehicle with flat-4 connector to be able to accept a trailer with 7-Way RV Blade plug or standard Flat-4 plug. Provides multiple towing options from one connector.
Stock# 5177018 Application: Provides 7 RV Blade AND 4-wire flat connection from one location. Package includes mounting bracket. Click above for Vehicle Application
Stock# 1566516 Quick connect junction box is used on many rental trucks. It allows fast and easy electrical hook up of tow dollies and trailers. It has four color coded wires and weather pack connector. SUPPLIES LIMITED
Stock# 5444186 Use to protect trailer electrical connections and bulb contacts. 8 oz. tub. Ideal for heavy-duty, automotive, agricultural, marine, industrial, and recreational applications, Grote’s Ultra-Seal corrosion preventive sealant contained added tackifiers to improve adhesion and resistance to washout.
Stock# 5444185 Use to protect trailer electrical connections and bulb contacts. 4 oz. tube. Ideal for heavy-duty, automotive, agricultural, marine, industrial, and recreational applications, Grote’s Ultra-Seal corrosion preventive sealant contained added tackifiers to improve adhesion and resistance to washout.