CURT 57245 7-Way RV Blade Vehicle-Side to 4-Way Flat Trailer Wiring Adapter with Tester

VERSATILE DESIGN. This trailer wiring adapter makes it easy to connect a mismatched vehicle socket and trailer plug, adapting your 7-way RV blade connector into a standard 4-way flat socket

INTEGRATED TESTER. This trailer wiring adapter features a dust cover with a built-in LED wiring tester to ensure proper functionality of your vehicle towing electrical system. The dust cover also protects the 4-pin wiring socket

STANDARD CONNECTION. This trailer hitch wiring adapter plugs into any standard 7-way RV blade and can be used to connect the taillights, brake lights, reverse lights, turn signals, trailer brakes and auxiliary power

NO-SPLICE INSTALL. This 7-pin to 4-pin trailer adapter wiring comes ready to plug into your vehicle or trailer wiring with zero splicing required

DURABLE CONSTRUCTION. For long-lasting use and a reliable connection, the housing of this trailer harness adapter is made from durable black plastic that will never rust or corrode

Retail Price: $ 10.88

Wholesale Price: Inquire Now

Wherever your work or play takes you

CURT offers custom trailer hitches, electrical products and a complete line of towing accessories to get you there with confidence and enjoy every mile of the journey.

CURT Trailer Hitches Camper RV Jeep Towing

Towing accessories to fit your lifestyle

Hitches, trailer wiring, cargo carriers and more!

CURT offers a complete line of towing accessories to let you fully enjoy your passion!

With everything from custom trailer hitches and trailer wiring to 5th wheel hitches and cargo carriers, we have the towing equipment you need to make the most of each adventure.

Whether you're working, playing or doing a little of both, CURT towing products enable you and your crew to make memories that will last a lifetime.

A complete line of towing products

Trailer hitches
5th wheel hitches
Gooseneck hitches
Towing electrical
Towing accessories
Weight distribution
Trailer parts and accessories
Cargo management


Custom hitches A trailer hitch receiver is the starting point for most people looking to tow with their vehicle. CURT offers over 1,000 different custom hitch models to provide a perfect, factory-like fit on most vehicles on the road today. Our custom hitches provide a standard hitch receiver to mount a variety of towing accessories.	Vehicle-trailer wiring The next step in equipping your vehicle for towing is to add a trailer wiring harness. Like our hitches, CURT custom wiring is made vehicle-specific for each make and model. Virtually all of our custom vehicle-trailer wiring harnesses install using existing factory connectors on the vehicle for a plug-and-play connection. No splicing necessary!	Ball mounts With a custom trailer hitch receiver installed on your vehicle, a variety of ball mount options can be installed as needed. We offer loaded ball mounts with a trailer ball already torqued in place, as well as adjustable ball mounts, multi-ball mounts, tow hooks and more. A ball mount can be secured into the receiver using one of our hitch pins or hitch locks.	Cargo management To add cargo space to your vehicle, CURT offers a number of cargo management accessories. Our cargo carriers are available in a convenient, use-as-needed hitch-mounted design, as well as a roof rack option. We also offer bike racks, cargo bags, cargo nets and ratchet straps for additional item security.


5th wheel hitches For heavy-duty towing of an RV or travel trailer with your pickup truck, CURT has a wide array of 5th wheel hitch options. 5th wheel hitches are available in capacities up to 25,000 lbs. and in various series, each with own unique set of features and benefits. To install a 5th wheel hitch in your pickup truck bed, CURT offers traditional 5th wheel rails and brackets, as well as puck system options and gooseneck adapters.	Gooseneck hitches For towing heavy-duty trailers around the farm or out to the construction site, CURT gooseneck hitches are a highly dependable extension of your truck. We offer puck system gooseneck hitch kits to accommodate trucks with the factory towing prep package. We also offer original-equipment-style gooseneck hitches for select applications, as well as traditional gooseneck hitches and brackets, such as our original Double Lock.	Trailer brake controllers CURT offers several different electrical trailer brake controller options to perfectly suit your towing setup and lifestyle. Our Echo mobile trailer brake controller is particularly unique, featuring a Bluetooth connection that links to your smartphone and provides highly responsive braking with your Apple or Android device as the interface. It easily plugs in with no tools or extra wires needed. We also offer our factory-like Spectrum and traditional TriFlex.


Adjustable channel mounts To give your vehicle greater capability for towing a variety of trailers, CURT adjustable trailer hitch ball mounts provide the answer. This versatile ball hitch comes in standard hitch receiver sizes and provides flexible vertical adjustment to ensure level towing, even with large, lifted trucks and SUVs.	Weight distribution hitches Give yourself more control over your vehicle and trailer with a CURT weight distribution hitch. This receiver hitch attachment helps level the vehicle-trailer combination for a smoother ride. Our TruTrack weight distribution hitch is particularly unique, featuring integrated trailer sway control.	Pintle hitches These heavy-duty hitches are perfect for agriculture, construction and military towing. We offer pintle hitches, pintle hooks, ball and pintle hitch combinations, as well as channel-mount pintle hitches for an adjustable option. We also carry high-strength lunette rings for a solid connection to the trailer.	Ratchet straps Keep your cargo fully secure in your truck bed or trailer with a set of CURT ratchet straps. These cargo tie-down straps come with heavy-duty ratcheting mechanisms and are available in wide variety of capacities, lengths, hook types and colors.

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CURT 57245 7-Way RV Blade Vehicle-Side to 4-Way Flat Trailer Wiring Adapter with Tester

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Product introduction

Shipping Notices

There are several different types of connectors used to supply power from a tow vehicle's electrical system to a trailer's wiring system. Some trailers only need the bare essentials -- running lights, brake lights and turn signals -- while others require a connection for reverse lights, electric brakes and auxiliary power. With connectors ranging from simple to complex, it may be the case that the connection between your vehicle and your trailer is not a perfect match. For example, your truck may be equipped with a 6-way round socket, but your trailer may have a 4-way flat plug. For this very common problem, CURT offers a quick and simple solution in the form of an electrical adapter. An adapter is an electrical device that allows a connection to be made between a mismatched trailer plug and vehicle socket. It easily plugs in your vehicle's electrical socket and usually requires no additional wiring. CURT offers an array of adapters to accommodate most types of plugs and sockets, including 4-way flat, 4-way round, 5-way flat, 6-way round, 7-way RV blades and more. This electrical adapter is designed to adapt a 7-way RV blade vehicle socket to fit a 4-way flat trailer plug. It features quality plastic construction, requires no splicing and comes with an LED connector tester dust cover. Not only does this dust cover protect the socket from dirt, water and road grime, but it also allows you to test your vehicle-side wiring connector to ensure your electrical systems are functioning properly. All CURT wiring and electrical products come with a one-year limited warranty to give you the assurance you need to tow with confidence.

From the manufacturer

Wherever your work or play takes you

CURT offers custom trailer hitches, electrical products and a complete line of towing accessories to get you there with confidence and enjoy every mile of the journey.

Towing accessories to fit your lifestyle

Hitches, trailer wiring, cargo carriers and more!

CURT offers a complete line of towing accessories to let you fully enjoy your passion!

With everything from custom trailer hitches and trailer wiring to 5th wheel hitches and cargo carriers, we have the towing equipment you need to make the most of each adventure.

Whether you're working, playing or doing a little of both, CURT towing products enable you and your crew to make memories that will last a lifetime.

A complete line of towing products

Trailer hitches
5th wheel hitches
Gooseneck hitches
Towing electrical
Towing accessories
Weight distribution
Trailer parts and accessories
Cargo management


Custom hitches A trailer hitch receiver is the starting point for most people looking to tow with their vehicle. CURT offers over 1,000 different custom hitch models to provide a perfect, factory-like fit on most vehicles on the road today. Our custom hitches provide a standard hitch receiver to mount a variety of towing accessories.	Vehicle-trailer wiring The next step in equipping your vehicle for towing is to add a trailer wiring harness. Like our hitches, CURT custom wiring is made vehicle-specific for each make and model. Virtually all of our custom vehicle-trailer wiring harnesses install using existing factory connectors on the vehicle for a plug-and-play connection. No splicing necessary!	Ball mounts With a custom trailer hitch receiver installed on your vehicle, a variety of ball mount options can be installed as needed. We offer loaded ball mounts with a trailer ball already torqued in place, as well as adjustable ball mounts, multi-ball mounts, tow hooks and more. A ball mount can be secured into the receiver using one of our hitch pins or hitch locks.	Cargo management To add cargo space to your vehicle, CURT offers a number of cargo management accessories. Our cargo carriers are available in a convenient, use-as-needed hitch-mounted design, as well as a roof rack option. We also offer bike racks, cargo bags, cargo nets and ratchet straps for additional item security.


5th wheel hitches For heavy-duty towing of an RV or travel trailer with your pickup truck, CURT has a wide array of 5th wheel hitch options. 5th wheel hitches are available in capacities up to 25,000 lbs. and in various series, each with own unique set of features and benefits. To install a 5th wheel hitch in your pickup truck bed, CURT offers traditional 5th wheel rails and brackets, as well as puck system options and gooseneck adapters.	Gooseneck hitches For towing heavy-duty trailers around the farm or out to the construction site, CURT gooseneck hitches are a highly dependable extension of your truck. We offer puck system gooseneck hitch kits to accommodate trucks with the factory towing prep package. We also offer original-equipment-style gooseneck hitches for select applications, as well as traditional gooseneck hitches and brackets, such as our original Double Lock.	Trailer brake controllers CURT offers several different electrical trailer brake controller options to perfectly suit your towing setup and lifestyle. Our Echo mobile trailer brake controller is particularly unique, featuring a Bluetooth connection that links to your smartphone and provides highly responsive braking with your Apple or Android device as the interface. It easily plugs in with no tools or extra wires needed. We also offer our factory-like Spectrum and traditional TriFlex.


Adjustable channel mounts To give your vehicle greater capability for towing a variety of trailers, CURT adjustable trailer hitch ball mounts provide the answer. This versatile ball hitch comes in standard hitch receiver sizes and provides flexible vertical adjustment to ensure level towing, even with large, lifted trucks and SUVs.	Weight distribution hitches Give yourself more control over your vehicle and trailer with a CURT weight distribution hitch. This receiver hitch attachment helps level the vehicle-trailer combination for a smoother ride. Our TruTrack weight distribution hitch is particularly unique, featuring integrated trailer sway control.	Pintle hitches These heavy-duty hitches are perfect for agriculture, construction and military towing. We offer pintle hitches, pintle hooks, ball and pintle hitch combinations, as well as channel-mount pintle hitches for an adjustable option. We also carry high-strength lunette rings for a solid connection to the trailer.	Ratchet straps Keep your cargo fully secure in your truck bed or trailer with a set of CURT ratchet straps. These cargo tie-down straps come with heavy-duty ratcheting mechanisms and are available in wide variety of capacities, lengths, hook types and colors.

Shipping Notices:

1 Contraband and limited items:

Clgarette,Alcohol,Contraband ?Do not accept

Liquid,cream or cosmetics items are quantity limited in shopping agent service

Chinese medicine is limited to ship by Chinese exporting goods.

2 Limitation for different shipping methods:

3 Yoybuy Product's Label:

Sensitive Product(SEN)

Product With battery

Cream

Powder

Dangerous Products

4 Volume weight Requested:

volume weight=length*height*Width/5000

one side must be less than 120cm，otherwise there is additional fee；250cm products can not be accept；

Any side must be less than 60cm，otherwise you will be charged the greater one between real weight and volume weight，more than 120cm will be not accepted.