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CURT 58300 Vehicle-Side Trailer Wiring Harness Mounting Bracket for 4-Way Flat, GLOSS BLACK POWDER COAT

4.5 4.5 out of 5 stars 4,364 ratings
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Purchase options and add-ons

Color GLOSS BLACK POWDER COAT
Brand CURT
Material Steel
Item dimensions L x W x H 7 x 2 x 2 inches
Item Weight 1.44 ounces

About this item

  • STANDARD FIT. This trailer wiring mounting bracket is designed to securely mount virtually any industry-standard 4-way flat connector
  • FLEXIBLE MOUNTING. The bracket features a simply friction fit design to accept a variety of trailer wiring harnesses. It allows you to mount the wiring harness onto your vehicle or trailer hitch, whichever is most convenient
  • HIGH-STRENGTH. This trailer wiring harness bracket is made from solid steel to provide plenty of strength for a solid mount and to remain fixed in spite of vibrations while towing. The steel body will not crack like plastic alternatives
  • CORROSION-RESISTANT. To face the weather and elements with ease, this trailer wiring bracket is covered in a black powder coat finish, helping to resist rust for long-lasting strength
  • EASY TO INSTALL. To install this mounting bracket for vehicle-trailer wiring, you can bolt it directly onto your vehicle using the top screw holes, or you can pair this bracket with the CURT #57204 for a convenient, no-drill, tube clamp mount
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From the manufacturer

CURT Towing Accessories

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

Basic towing components

CURT Trailer Hitch Towing Accessories Ball Mount

CURT Custom Trailer Wiring Harness Hitch Receiver

CURT Ball Hitch Mount Towing Accessories

CURT Hitch Cargo Carrier Cargo Net

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.

Heavy-duty towing equipment

CURT 5th Wheel Hitch Truck Bed Towing

CURT Gooseneck Hitch OEM Puck System Truck Bed

CURT Echo Mobile Electric Trailer Brake Controller Smartphone

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.

Specialized towing accessories

CURT Trailer Hitch Adjustable Channel Mount

CURT Weight Distribution Hitch Trailer Sway Control

CURT Pintle Hitch Mount Lunette Ring

CURT Cargo Ratchet Straps Trailer Truck Towing

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.

Product Description

CURT electrical connector brackets provide a simple solution for mounting wiring to your trailer hitch on the rear of your vehicle. Connector wires can be a nuisance when they are just lying around. They can get tangled up with cargo and even damaged. An electrical connector left to hang off the back end of your vehicle is an even greater hazard. Secure, protect and optimize the use of your electrical connector by mounting it with a CURT connector bracket. This trailer wire connector bracket is designed to hold a 4-way flat socket. It features sturdy steel construction with a black finish and can be mounted on your vehicle or trailer hitch. When it comes to plugging in your trailer lights, it pays not to skimp out. CURT electrical is the smart way to ensure that your trailer lights and electrical systems are prepared for the road ahead. Keep the power flowing, no matter where your adventures take you, with quality electrical products from CURT.

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Warranty & Support

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CURT 58300 Vehicle-Side Trailer Wiring Harness Mounting Bracket for 4-Way Flat, GLOSS BLACK POWDER COAT

CURT 58300 Vehicle-Side Trailer Wiring Harness Mounting Bracket for 4-Way Flat, GLOSS BLACK POWDER COAT


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What's in the box

  • 1 BRACKET,4-FLAT,BULK
  • Looking for specific info?

    Customer reviews

    4.5 out of 5 stars
    4.5 out of 5
    4,364 global ratings

    Customers say

    Customers like the performance, ease of installation, and quality of the mount bracket. For example, they mention it works great, it's easy to mount, and it looks of good quality. That said, opinions are mixed on fit.

    AI-generated from the text of customer reviews

    135 customers mention121 positive14 negative

    Customers like the performance of the mount bracket. For example, they say it works great, is sturdy, and has no issues. Some are satisfied with the final product and say it's a perfect solution.

    "...Perfect solution and makes the wiring look factory. Highly recommend this bracket." Read more

    "Worked fine." Read more

    "It works perfectly" Read more

    "Excellent part, fast shipping" Read more

    84 customers mention77 positive7 negative

    Customers find the installation of the mount bracket to be easy. They mention that it holds the 4 pin flat plug firmly, works perfectly, and is quick and simple. Some say that the bracket bolts right on.

    "Hard to go wrong with something this simple, quick and easy install." Read more

    "EASY TO PLUG TRAILER TO." Read more

    "Easy to install and seams very sturdy" Read more

    "Bolted right on and didn’t make me hungry. Probably won’t help you lose weight but won’t shrink in the wash." Read more

    64 customers mention54 positive10 negative

    Customers like the quality of the mount bracket. They say it's built well, sturdy, and worth the price. Some say it is easy to bend when installed, but sturdy enough to remain in place. Overall, most are satisfied with the quality and functionality of the product.

    "For $1.01, this was the perfect bracket to complement the Curt hitch receiver and Curt wiring that we installed on our 2021 Kia Sorento SX...." Read more

    "Connector fit perfectly, strong metal and worth the price ." Read more

    "...It IS well made and only a buck, so IF you have the style connector it's designed for, this will work for you." Read more

    "...Good quality bracket though." Read more

    48 customers mention48 positive0 negative

    Customers find the mount bracket to be good value for the money. They say it's a simple inexpensive solution to mounting the wiring plug. Some customers also say it works great for an amazing price.

    "Connector fit perfectly, strong metal and worth the price ." Read more

    "I LOVE that it is honestly priced at $1. So what that screws are not included!..." Read more

    "...I also usually find their prices to be the most competitive...." Read more

    "...I am happy with the price and OKAY with no screws provided. They would probably been not what I needed...." Read more

    35 customers mention32 positive3 negative

    Customers like the plug. They say it holds the wiring connector held firmly in place, and allows them to keep the wiring tucked neatly out. Some customers also mention that the bracket is easy to mount and holds the 4 pin flat plug firmly. Overall, most are satisfied with the plug and recommend it for its quality.

    "holds plug perfect" Read more

    "It's pretty solid and needs fasteners" Read more

    "It keeps the wires in a easy spot to plug into" Read more

    "...Super easy to install. Looks great. Holds the wire end quite well. Make the final product look much cleaner overall." Read more

    33 customers mention33 positive0 negative

    Customers are satisfied with the appearance of the mount bracket. For example, they mention it looks good, provides a professional finished installation, and has a quality painted finish. Some say it neatens up the hitch on their car.

    "...Perfect solution and makes the wiring look factory. Highly recommend this bracket." Read more

    "Served its purpose and cleaned up the wiring and gave it a cleaner look." Read more

    "Pretty handy and useful to have in place. It also looks better then having the wires dangle and possibly screw up the plug end by dragging on the..." Read more

    "...The Curt pigtail clipped right in. It looks great and no swinging wires that can get snagged on something. Would recommend it and buy it again." Read more

    107 customers mention66 positive41 negative

    Customers are mixed about the fit of the mount bracket. Some mention it fits right, installs easily, and has a tight fit on the plug end. However, some say that it wouldn't fit, is too small for their connector, and the plug is really snug.

    "...(especially considering the minimal cost), but the Curt 4 pin wiring harness fit perfectly in this bracket and snaps in securely...." Read more

    "The price is right but didn’t fit to well had to modify the facts plug to work because the hole was to small, when completed it looks fine" Read more

    "Connector fit perfectly, strong metal and worth the price ." Read more

    "This fit perfect on my vehicle" Read more

    53 customers mention5 positive48 negative

    Customers are dissatisfied with the screws that come with the mount bracket. They mention that it does not include the mounting hardware.

    "I LOVE that it is honestly priced at $1. So what that screws are not included!..." Read more

    "Sturdy product. Be aware that there are no screws to install but what do you want for a buck? Multiple installation locations...." Read more

    "...It did not come with any hardware, but that was easy enough to find. The plug which was a Tekonsha worked just fine...." Read more

    "Fits Curt's wiring harness perfectly. Only item missing are mounting screws. I bought them at Lowe's (black screws, washers, and nuts)...." Read more

    WARNING! NOT Universal!
    3 Stars
    WARNING! NOT Universal!
    I LOVE that it is honestly priced at $1. So what that screws are not included! Evaluate how you are going to mount, then get the screws appropriate for YOUR installation.I Dislike that the first statement is "designed to securely mount virtually any industry-standard 4-way flat connector". Very misleading!This is a CURT bracket designed for a CURT / Tekonsha style (or similar) connector.See the pics I posted. I have THREE vehicles with the style connector labeled "NO, will NOT work", installed at different times (virtually ANY?), and the only way I could get this bracket to work was by "whittling" on the connector with a Dremel (after trying to trim with a utility knife) and even then it took a lot of effort to force it in. 10 minutes to mount it to the underside of my plastic bumper..but a couple hours to figure out why it wouldn't work and then how to make the connector fit in it.I would normally give ZERO stars for misleading advertising, but I should have read the negative reviews and done my research.It IS well made and only a buck, so IF you have the style connector it's designed for, this will work for you.
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    Top reviews from the United States

    Reviewed in the United States on May 7, 2024
    Doesnt mount anywhere to the same brand hitch, or come with any hardware. Its just a bracket. But again, does what its meant to do.
    Reviewed in the United States on May 7, 2024
    Great transaction and product
    Reviewed in the United States on April 11, 2024
    It fit --
    Reviewed in the United States on February 22, 2024
    Worked fine.
    Reviewed in the United States on April 3, 2024
    Exactly what I wanted
    Reviewed in the United States on March 19, 2024
    Excelente fijador de cables de remolque
    Reviewed in the United States on March 18, 2024
    holds plug perfect
    Reviewed in the United States on April 5, 2024
    Holds the connector but not well. Used with another brand new Curt plug kit and you must stress the plug to insert to where it is held firmly.

    Top reviews from other countries

    Translate all reviews to English
    ilir
    5.0 out of 5 stars Nice and easy
    Reviewed in Canada on April 9, 2024
    Easy to attach to the hitch frame.
    Easy to attach the harnes terminal in it.
    Perfect
    Cliente de Amazon
    5.0 out of 5 stars Buen producto
    Reviewed in Mexico on May 1, 2020
    Excelente producto pero increíblemente difícil de instalar con conector Hoopkins, no se si se tenga que tener conector marca Curt
    frank hart
    5.0 out of 5 stars Works well
    Reviewed in Australia on January 27, 2024
    Good firm fit for the plug
    E.M.
    5.0 out of 5 stars Exactly what I needed
    Reviewed in Canada on April 12, 2024
    Came in a small package wrapped nicely. No nicks or dings in it. Fit perfectly. You just need to supply your own bolts for installation.
    Jose d.
    4.0 out of 5 stars Bueno
    Reviewed in Mexico on May 13, 2023
    Bien