Manufacturer | CURT |
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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 |
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CURT 57727 7-Way Adapter with Back-Up Alarm
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

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Top Brand: CURT
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
Basic towing components
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
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
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 57727 7-Way Adapter with Back-Up Alarm
Product information
Technical Details
Additional Information
ASIN | B004QEKGQO |
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Customer Reviews |
3.7 out of 5 stars |
鶹 Rank |
|
Date First Available | Feb. 5 2013 |
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Customer reviews
Customers say
Customers have mixed opinions about the noise level and reliability of the car alarm.
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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
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
There was a problem filtering reviews. Please reload the page.
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Reviewed in Canada on October 21, 2024Verified PurchaseAlarme de reculons le son n’est pas assez bruyant
- Reviewed in Canada on July 1, 2023Verified PurchaseIt is easy to use. It is NOT crazy loud. Which my neighbors can appreciate.
- Reviewed in Canada on October 22, 2024Verified PurchaseWorks 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, 2024Verified PurchaseHoping it lasts. So far it's perfect
- Reviewed in Canada on March 28, 2018Verified PurchaseTimely delivery but not the product I expected. Beeper was not very loud and it has connection issues
- Reviewed in Canada on June 20, 2024Verified PurchaseGreat product, worth the extra $$.
- Reviewed in Canada on May 14, 2023Verified PurchaseNo issues
- Reviewed in Canada on August 13, 2021Verified PurchaseWorks well just wish it was a little bit louder
Top reviews from other countries
- Mike SReviewed in the United States on September 10, 2024
5.0 out of 5 stars Perfect.... Not Too Loud
Verified PurchaseI 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.
- zach w.Reviewed in the United States on December 26, 2024
4.0 out of 5 stars Easy to install
Verified PurchaseSuper 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
- KiddReviewed in the United States on March 2, 2025
1.0 out of 5 stars Not as loud as advertised
Verified PurchaseIt'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 SheetsReviewed in the United States on July 11, 2023
3.0 out of 5 stars Sound level
Verified PurchaseThis 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.
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Product Summary: CURT 57727 7-Way Adapter with Back-Up Alarm
From CURT
About this Item
- 7-way RV blade extender
- Audible alarm when vehicle is in reverse
Product description
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