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Manual Reverse Lockout Kit for Demco Hydraulic Trailer Brake Actuators

Manual Reverse Lockout Kit for Demco Hydraulic Trailer Brake Actuators

Item # DM5939
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Demco Brake Actuator - DM5939
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Install this manual reverse lockout so that you can back up your vehicle without triggering your trailer's brakes. Lockout installs on any Demco Model DA91 hydraulic brake actuator and is easily activated by hand. No wiring required. 1-833-496-1390 to order Demco accessories and parts part number DM5939 or order online at etrailer.com. Free expert support on all Demco products. Guaranteed Lowest Price and Fastest Shipping for Manual Reverse Lockout Kit for Demco Hydraulic Trailer Brake Actuators. Accessories and Parts reviews from real customers.
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Demco Accessories and Parts - DM5939

  • Brake Actuator
  • Reverse Lockout
  • Demco

Install this manual reverse lockout so that you can back up your vehicle without triggering your trailer's brakes. Lockout installs on any Demco Model DA91 hydraulic brake actuator and is easily activated by hand. No wiring required.


Features:

  • Prevents trailer brakes from locking up when tow vehicle is in reverse
  • Designed for use with Demco model DA91 trailer brake actuators
  • Includes rust-resistant, zinc-coated steel pin and powder coated steel tab
  • Installs quickly and easily
  • Made in the USA


Manual Reverse Lockout

This manual lockout easily installs on any Demco DA91 hydraulic brake actuator so that you can back up your vehicle without your trailer's brakes locking up. To activate the lockout, just rotate the tab on the side of the actuator to the left. Once the lockout has been activated, you can back up your trailer without triggering the trailer brakes. Always remember to restore the tab to its original position when preparing to move forward.



5939 Demco Manual Lock Out Replacement Kit for DA91 Hydraulic Brake Actuator

Installation Details DM5939 Installation instructions



Video of Manual Reverse Lockout Kit for Demco Hydraulic Trailer Brake Actuators

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Review of Demco Brake Actuator Parts - Reverse Lockout Kit - DM5939

Hey everyone. I'm Ellen here at etrailer.com and we're going to take a quick look at the manual reverse lockout pin kit for your Demco brake actuators. So this is a pretty simple piece to help you lock out the brakes. So you can actually reverse without those brakes being engaged. It's going to come with a kind of tab to go over your pin and then the clip to keep it in place.So pretty simple, you'll just pull out the actuator, pull out the inner sleeve to expose the side tabs and then place in this pin with the tab facing horizontally, and that should lock into it and help you to make those moves without the brakes being engaged.It does come with some instructions with a diagram to kind of make it a little bit easier to get this installed and this little pin to get that out of place, you just kind of have to coax it around. It sort of wraps around the pen.

So if you pull up on this piece, that should free it up, and then, let you take that off.Rotate it around, there we go. This is made in the USA. It is designed for use with the Demco model, DA91 trailer brake actuator, and it is going to be a rust resistant zinc coated steel pin and that steel tab has a nice powder coat on it to make it resistant to any rest as well. That's about all there is to it for our look at the manual reverse lockout kit for your Demco brake actuator. I hope this video has been helpful.

Thanks for watching.


Customer Reviews

Manual Reverse Lockout Kit for Demco Hydraulic Trailer Brake Actuators - DM5939

Average Customer Rating:  4.0 out of 5 stars   (6 Customer Reviews)

Install this manual reverse lockout so that you can back up your vehicle without triggering your trailer's brakes. Lockout installs on any Demco Model DA91 hydraulic brake actuator and is easily activated by hand. No wiring required.

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Fast shipping and easy installation


Comments
It has been working flawlessly
Billy - 12/24/2021


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Sorry to say it didn't do the job 100% as expected. It has to be held in place by hand while vehicle is backing up (dangerous) .. because it will not stay horizontal. Needs either a locking pin option or a longer tang that keeps it atop the plastic piece it is designed to rest on inside the trailers brake system.




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Very easy to install.




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6
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See what our Experts say about this Demco Accessories and Parts



  • Demco Manual Brake Lockout Compatibility with Dexter Brake Actuating Coupler
    The Manual Reverse Lockout Kit for Demco Hydraulic Trailer Brake Actuators # DM5939 you referenced will work with any Demco DA91 hydraulic brake actuator. The Dexter actuator is not a confirmed fit.
    view full answer...
  • Install Diagram For Manual Reverse Lockout Kit # DM5939
    While the install instructions link for the # DM5939 does seem to be not working I was able to find a diagram that shows how this installs on a coupler for you to check out that shows how it installs and where.
    view full answer...
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  • Manual Reverse Lockout for Demco D91 Trailer Brake Actuators
    Yes! The manual reverse lockout kit you are looking for is the # DM5939 for D91 Demco Hydraulic Trailer Brake Actuators. I have linked the product and installation instructions to this page for your convenience.
    view full answer...
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  • How to Release the Breakaway on the Demco Hydraulic Brake Actuator Part # DM8509612
    Are you referring to the breakaway or lockout on the Demco Hydraulic Brake Actuator part # DM8509612? If you are referring to the breakaway then there is a lever on the top of the coupler which has two positions, one for brakes on (red) and one for brakes off (green). If you are referring to the lockout then this unit does not come with a lockout mechanism. Therefore, in order reverse the trailer without having the brakes lock up you would need to either use free-backing brakes or a manual...
    view full answer...
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  • Does Demco Kar Kaddy Have a Reverse Lockout for the Hydraulic Brakes
    The Kar Kaddy SS, part # DM9713045, does not have a lock out on the hydraulic brakes to keep them from engaging while in reverse. With that being said in most cases you won't need one because the dolly is only 615 pounds unloaded which won't likely put enough resistance to engage the brakes. It's not recommend to be backed up anyway and definitely don't back up with the vehicle on the dolly. Since the Kar Kaddy swivels at both the platform and the coupler it'll get pretty squirrely and...
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  • Does Manual Reverse Lockout Kit for Demco Hydraulic Trailer Brake Actuators Work With DA91 Models?
    I can confirm for you that the Manual Reverse Lockout Kit for Demco Hydraulic Trailer Brake Actuators # DM5939 will work with the Demco Hydraulic Brake Actuator # DM8759131. This actuator is model number DA91, as you said, and the lockout kit is designed for use with DA91 actuator.
    view full answer...
  • Is There a Manual Lockout for Demco DA91 Actuator part # DM8669112
    The Demco Actuator part # DM8669112 that you referenced is compatible with the manual lock out part # DM5939 that you referenced so that would be exactly what you'd need.
    view full answer...
  • Replacement Pontoon Boat Trailer Surge Brake Actuator With Drop Coupler
    I recommend using the Demco Hydraulic Brake Actuator w/ Drop and Electric Lockout # DM8750311. This actuator has a 4" drop that will help you attach to you truck without the need for such a large adjustable receiver. It will work with your single disc brake axle and features a electric reverse lockout like your current actuator. To this I recommend adding the Manual Reverse Lockout Kit # DM5939. This will allow you to disconnect the electrical and still ensure your brakes will remain...
    view full answer...
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  • Is There a Way to Manually Lock Out Demco DA91 Actuator
    You can use the manual lock out part # DM5939 to manually lock out the Demco DA91 actuator part # DM8164311 that you referenced.
    view full answer...
  • Recommended Surge Brake Actuator For Demco DT6000 Trailer With Drum Brakes
    I would be happy to help! As long as the A-Frame on your trailer is the standard 50-degree angle then the best option to replace your current surge brake actuator would be the Demco Hydraulic Brake Actuator w Drop - Drum - Primed - A-Frame - 2" Bulldog Coupler - 7,000 lb # DM8509612. This actuator will weld right on to your A-frame, has a 7000lb trailer weight rating, uses a standard 2" hitch ball, and is designed specifically for drum brakes like your Demco DT6000 trailer has. Now this...
    view full answer...
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  • Installation and Mounting for the Demco Hydraulic Brake Actuator
    I looked on Demco's website and was able to pull some information and diagrams on how you would mount the Demco Hydraulic Brake Actuator item # DM8609101. I have attached them below. I was not able to find any pictures of this Actuator installed. The installation is pretty straight forward though. It mounts to the top of a 3" wide trailer tongue with three 1/2" x 4-1/2" grade-5 bolts. These bolts are not included. This kit does not include a lock out kit so you will need the Manual Reverse...
    view full answer...
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  • How to Use the Coiled Adapter 7-Way to 5-Flat Part # 787207 with a Reverse Lockout Solenoid
    I assume you are referring to the reverse lockout solenoid wire and if that is the case then you would need to wire or check that the trailer side trailer connector has this wire on the far left pin which you can see in the attached photo of the Coiled Adapter 7-Way Flat Pin Blade to 5-Flat part # 787207. This pin should then match up with the reverse light circuit on your vehicle's 7-way.
    view full answer...
    Image 1 for
  • Will Dexter or Titan Free-Backing Drum Brakes Work with Demco Brake Actuator # DM72VR
    The Demco Hydraulic Trailer Brake Actuator for Drum Brakes # DM72VR has a brake line fitting on the rear of the master cylinder that will accept the standard 3/16 inch size brake line. The Dexter or Titan brand brake assemblies will work with this Demco actuator cause they are designed to work with the standard 3/16 inch size brake lines. Using the free-backing brakes on your trailer is a good idea since this actuator does not include a reverse lockout. The free-backing brakes will allow...
    view full answer...
  • Is There a Disc Brake Trailer Actuator with Manual Lockout
    The Demco Hydraulic Brake Actuator part # DM8669113 for 2" or part # DM8758811 for 2-5/16" are the only disc brake actuators we have that can be manually locked out using the Manual Reverse Lockout Kit for Demco Hydraulic Trailer Brake Actuators part # DM5939. They both have a 8,000 lb weight capacity and come with the eZ-Latch coupler mechanism so they should work well for you.
    view full answer...
  • Is Manual Reverse Lockout as Effective as Solenoid For Demco Actuator A91
    There isn't an angle I can give you for when the lockout would be needed; however, if you want to be able to back up as needed you will need a reverse lockout with the Demco Hydraulic Brake Actuator # DM8609502. That said, the Manual Reverse Lockout Kit for Demco Hydraulic Trailer Brake Actuators # DM5939 is absolutely just as effective as the Reverse Lockout Solenoid for Demco Hydraulic Brake Actuators - Non-Bypass # DM11993. The trade-off being the manual lockout just isn't as convenient...
    view full answer...
  • Reverse Lockout Options For a Demco DA91 Surge Brake Actuator
    You can add a Manual Reverse Lockout Kit # DM5939 or Electric Reverse Lockout Solenoid Kit # DM5837 to the Demco Hydraulic Brake Actuator # DM8509612 to get the DA91 surge coupler with a reverse lockout.
    view full answer...
  • Can You Add a Lockout to the Demco Hydraulic Brake Actuator DM8759241
    The Demco Hydraulic Brake Actuator part # DM8759241 does not come with a lockout but you can add a manual one with the Manual Reverse Lockout Kit for Demco Hydraulic Trailer Brake Actuators part # DM5939. If you are looking for an electric lockout you can use the Titan Brake Actuator w/ Electric Lockout part # T4857220 which has a 12,500 lb weight capacity but is not offered in an 8,000 lb model.
    view full answer...
  • Adding Manual Lockout to Surge Brake Actuator
    The reason there are different actuators for disc brakes and drum brakes is the psi the brakes operate at. Disc brakes operate at a higher psi than drum brakes and either too much or too little pressure can cause damage to the brakes. There are units that can have manual reverse lockouts installed but not all.
    view full answer...
  • Compatibility Of Demco Hydraulic Brake Actuator with Lunette Ring and Reverse Lockout
    The Demco Hydraulic Brake Actuator, Drum, Black, 8 Inch Adjustable Channel # DM8759122-30 that you referenced is designed for trailers weighing up to 8,000 pounds with 800 pound tongue weights. This brake actuator will work well for your 4,600 pound trailer. The # DM8759122-30 has a 3 inch wide channel on the front, and the Demco Lunette Ring # DM09557-97 is designed to mount in a 3 inch wide channel, so it will work well for you on the Demco # DM8759122-30 actuator. This # DM09557-97...
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  • Recommendation to Replace Atwood 83010 Brake Actuator
    Your existing Atwood model 83010 Brake Actuator (which as you mentioned is no longer available) is an 8,000 pound rated assembly for hydraulic drum brakes that's compatible with a 2" ball. It's designed to fit 3" wide straight trailer tongues. In terms of specs the closest option we have available for replacement is the Demco Hydraulic Brake Actuator # DM8669112. This actuator features an 8,000 pound towing capacity, works with 2 inch hitch balls, fits 3" wide trailer tongues, and is...
    view full answer...
  • Actuator Needed to Use Demco Manual Reverse Lockout Kit For Hydraulic Brake Actuators
    No; the Demco Hydraulic Trailer Brake Actuator # DM72VR is designed for use with free-backing brake systems and does not have a lockout feature- so you wouldn't be able to use the Manual Reverse Lockout Kit # DM5939 with that actuator. To use the Manual Reverse Lockout Kit you would need an actuator like the Demco Hydraulic Brake Actuator w/Manual Lockout # DM8760011 . This kit requires 1/2" x 4-1/2" Grade 5 bolts (not included) for mounting as well as a coupler similar to # CT-5003-Z...
    view full answer...
  • Solution for Reverse Lockout on Demco DA70 Actuator
    The # DM5939 is only compatible with the DA91 like the # DM8759131. Unfortunately, there is no option for manual lockout on a DA70 like the # # DM72VR. There are two ways you can keep your brakes from locking up with this brake actuator. The first is to add a solenoid like the # DM11993. The other option you have is to switch out the brakes on your trailer with free backing brakes like # AKFBBRK-35-D. These brakes won't engage in reverse so there would be no need to add a lockout to your...
    view full answer...
  • Trailer Brake Reverse Lockout Options Using 7" Hydraulic Trailer Brakes
    A reverse lockout will prevent the trailer brakes from activating when you reverse your trailer that has a surge brake style coupler. Certain surge couplers will allow you to use an electric Solenoid Valve like the # T4748800 that prevents hydraulic fluid from going to the brakes when you place your vehicle in reverse(Must have functioning 5-way or 7-way trailer connector). Other surge couplers will use a manual lockout like the Demco # DM5939 or Dexter # DX94FR. If you can let me know...
    view full answer...

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Info for this part was:

Employee Lindsey S
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Expert Research:
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Employee Jameson C
Expert Research:
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Employee Kathleen M
Installed by:
Kathleen M
Employee Laura H
Updated by:
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Employee Jenny M
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