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  • CURT 57727 7-Way Adapter with Back-Up Alarm
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CURT 57727 7-Way Adapter with Back-Up Alarm

3.7 out of 5 stars 418 ratings

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Purchase options and add-ons

Brand CURT
Compatible devices Vehicles with a 7-way RV blade socket
Noise level 97 dB
Remote control included? No
Global Trade Identification Number 00612314107742

About this item

  • 7-way RV blade extender
  • Audible alarm when vehicle is in reverse

Frequently bought together

This item: CURT 57727 7-Way Adapter with Back-Up Alarm
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Top Brand: CURT

Highly Rated
100K+ customers rate items from this brand highly
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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

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.

CURT Custom Trailer Wiring Harness Hitch Receiver

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!

CURT Ball Hitch Mount Towing Accessories

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.

CURT Hitch Cargo Carrier Cargo Net

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

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.

CURT Gooseneck Hitch OEM Puck System Truck Bed

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.

CURT Echo Mobile Electric Trailer Brake Controller Smartphone

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

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.

CURT Weight Distribution Hitch Trailer Sway Control

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.

CURT Pintle Hitch Mount Lunette Ring

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.

CURT Cargo Ratchet Straps Trailer Truck Towing

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 57727 7-Way Adapter with Back-Up Alarm

Product information

Technical Details

Manufacturer ‎CURT
Place of Business ‎DFW AIRPORT, TX, 75261 US
Brand ‎CURT
Model ‎7-Way RV Alarm
Product Dimensions ‎17.78 x 5.08 x 5.08 cm; 13.61 g
Item model number ‎57727
Exterior ‎Painted
Manufacturer part number ‎57727
OEM part number ‎BKDK57727
Item Weight ‎13.6 g

Additional Information

ASIN B004QEKGQO
Customer Reviews
3.7 out of 5 stars 418 ratings

3.7 out of 5 stars
鶹 Rank
Date First Available Feb. 5 2013

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CURT 57727 7-Way Adapter with Back-Up Alarm


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Customer reviews

3.7 out of 5 stars
418 global ratings

Review this product

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Customers say

Customers have mixed opinions about the noise level and reliability of the car alarm.

Select to learn more

9 customers mention "Noise level"4 positive5 negative

Customers have mixed opinions about the noise level of the car alarm. Some mention it's not crazy loud, while others say it doesn't even detect ambient noise.

"Works really good, but as others have said it's REALLY quiet... My diesel truck is deleted, but HAS a muffler and cats, but you can't hear it over..." Read more

"It is easy to use. It is NOT crazy loud. Which my neighbors can appreciate." Read more

"Timely delivery but not the product I expected. Beeper was not very loud and it has connection issues" Read more

"Well designed... loud enough to warn pedestrians" Read more

7 customers mention "Reliability"4 positive3 negative

Customers have mixed opinions about the reliability of the car alarm. Some mention it works really good, while others say it stops working now and the back up beeper doesn't work.

"Works really good, but as others have said it's REALLY quiet... My diesel truck is deleted, but HAS a muffler and cats, but you can't hear it over..." Read more

"Back up beeper doesn’t work" Read more

"Works well just wish it was a little bit louder" Read more

"...Then randomly one day (after the return window...) it stopped working and hasn't worked since. Feels like it's a cheaper quality device...." Read more

Top reviews from Canada

  • Reviewed in Canada on October 21, 2024
    Verified Purchase
    Alarme de reculons le son n’est pas assez bruyant
    Report
  • Reviewed in Canada on July 1, 2023
    Verified Purchase
    It is easy to use. It is NOT crazy loud. Which my neighbors can appreciate.
  • Reviewed in Canada on October 22, 2024
    Verified Purchase
    Works really good, but as others have said it's REALLY quiet... My diesel truck is deleted, but HAS a muffler and cats, but you can't hear it over the exhaust....

    Then randomly one day (after the return window...) it stopped working and hasn't worked since.

    Feels like it's a cheaper quality device....
  • Reviewed in Canada on December 23, 2024
    Verified Purchase
    Hoping it lasts. So far it's perfect
  • Reviewed in Canada on March 28, 2018
    Verified Purchase
    Timely delivery but not the product I expected. Beeper was not very loud and it has connection issues
  • Reviewed in Canada on June 20, 2024
    Verified Purchase
    Great product, worth the extra $$.
  • Reviewed in Canada on May 14, 2023
    Verified Purchase
    No issues
    One person found this helpful
    Report
  • Reviewed in Canada on August 13, 2021
    Verified Purchase
    Works well just wish it was a little bit louder

Top reviews from other countries

  • Mike S
    5.0 out of 5 stars Perfect.... Not Too Loud
    Reviewed in the United States on September 10, 2024
    Verified Purchase
    I wanted this for when I have my camper on my truck so I can be assured people close by are aware I am backing up. This installed perfectly in just a few seconds. It's not commercial-truck-loud, and it could even be quieter. But it does the job that it's intended for.
  • PM W.
    5.0 out of 5 stars Great Backup Alarm Solution
    Reviewed in the United States on July 18, 2025
    Verified Purchase
    Great solution when you need a backup alarm but don’t want to install a more costly, permanent one. Works great!
  • zach w.
    4.0 out of 5 stars Easy to install
    Reviewed in the United States on December 26, 2024
    Verified Purchase
    Super quick install and it seems to be of good quality. The only reason for four stars instead of five is the volume of the alarm isnt the best but it gets the job does in most cases. Good value for the money
  • Kidd
    1.0 out of 5 stars Not as loud as advertised
    Reviewed in the United States on March 2, 2025
    Verified Purchase
    It's a nice compact piece. And it does have an alarm in it but...
    I worked with heavy equipment and buses for 37 years. And they all have "backuo" alarms. All are at industry minimum of 95 dB. This item here is NO WAY 97 dB as advertised. I can barely hear it with both windows open on a light duty regular cab 1500 pickup truck. I'm contemplating sending this waste of money back over the weekend.
  • Bro George Sheets
    3.0 out of 5 stars Sound level
    Reviewed in the United States on July 11, 2023
    Verified Purchase
    This is a replacing for one I had trouble hearing. This one is louder but not loud as I had hoped. I am not going to bother sending it back. It's says it's supposed to be 97 dB. A smoke alarm is around 85 dB and smoke alarm is louder than this. And it's a faster beep than other back up alarm I've heard.

Product Summary: CURT 57727 7-Way Adapter with Back-Up Alarm

From CURT

3.7 out of 5 stars, 418 ratings

Customer reviews

50+ bought in past month

Price

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About this Item

  • 7-way RV blade extender
  • Audible alarm when vehicle is in reverse

Product description

CURT 57727 7-Way Adapter with Back-Up Alarm

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