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Reverse Lockout Solenoid for Demco Hydraulic Brake Actuators - Non-Bypass

Reverse Lockout Solenoid for Demco Hydraulic Brake Actuators - Non-Bypass

Item # DM11993
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Demco Brake Actuator - DM11993
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Replaces or adds an inline reverse lockout solenoid to Demco DA10, DA20, and DA91 hydraulic trailer brake actuators. Non-bypass design allows you to thread the solenoid valve into your master cylinder for a hassle-free installation. Call 800-298-8924 to order Demco accessories and parts part number DM11993 or order online at etrailer.com. Free expert support on all Demco products. Guaranteed Lowest Price and Fastest Shipping for Reverse Lockout Solenoid for Demco Hydraulic Brake Actuators - Non-Bypass. Accessories and Parts reviews from real customers.
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  • Reviews (8)
  • Q & A (21)
  • Videos (2)
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Demco Accessories and Parts - DM11993

  • Brake Actuator
  • Solenoid Parts
  • Demco
  • Solenoid Kit

Replaces or adds an inline reverse lockout solenoid to Demco DA10, DA20, and DA91 hydraulic trailer brake actuators. Non-bypass design allows you to thread the solenoid valve into your master cylinder for a hassle-free installation.


Features:

  • Solenoid allows you to replace or add a reverse lockout solenoid to your Demco hydraulic trailer brake actuator
    • Allows you to move in reverse without engaging the trailer brakes
    • Made in the USA
  • Fits Demco models DA10, DA20, and DA91 hydraulic trailer brake actuators
  • Non-bypass configuration
    • Allows you to install the solenoid without drilling into your master cylinder
    • Easier to install than bypass models
    • Made in the USA
  • Made in the USA


11993 Demco Reverse Lockout In-Line Solenoid for DA10, DA20, and DA91 Hydraulic Brake Actuators - Non-Bypass





Video of Reverse Lockout Solenoid for Demco Hydraulic Brake Actuators - Non-Bypass

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




Video Transcript for Demco Brake Actuator DM11993 Review

Speaker 1: Today we're going to take a look at the non bypass reverse lock out solenoid for Demco hydraulic brake actuators. Now this solenoid will allow you to replace or add or reverse a lock out solenoid to your Demco hydraulic trailer brake actuator, and what this does is a reverse lock out solenoid is installed at the back of the brake actuator on your trailer, and it prevents the brakes from being applied to your trailer brakes when going in reverse.It is wired to a reverse circuit. Basically when you go into reverse, the power is applied to the solenoid and it prevents the brake pressure from being applied to your trailer brakes. This solenoid is designed to fit the Demco models DA10, DA20 and DA91 hydraulic trailer brake actuators, and this one is a non bypass configuration. Basically the difference is a bypass solenoid when energized will only allow the brake fluid to flow back into the master cylinder, and a non bypass like this one is, when energized will just prevent the fluid from flowing anywhere.This will allow you to install the solenoid without drilling into your master cylinder, and it's easier to install than the bypass models. Basically, where your brake line goes into the back of your actuator, you just unscrew that, install the solenoid in there, put your brake line right into here.

You have two yellow wires, one goes to a ground, one goes to your reverse slide circuit. Doesn't matter which one, they're both yellow so either wire can work for either circuit.Once that's hooked up, when you go into reverse it will block the brake pressure or the brake fluid from going to the trailer brakes on your trailer.That should do it for the review on the non bypass reverse lock out solenoid for Demco hydraulic brake actuators.


Customer Reviews

Reverse Lockout Solenoid for Demco Hydraulic Brake Actuators - Non-Bypass - DM11993

Average Customer Rating:  5.0 out of 5 stars   (8 Customer Reviews)

Replaces or adds an inline reverse lockout solenoid to Demco DA10, DA20, and DA91 hydraulic trailer brake actuators. Non-bypass design allows you to thread the solenoid valve into your master cylinder for a hassle-free installation.

- DM11993
by:

Fits and works exactly as described. Easy install. 882454



- DM11993
by:

Easy to install and everything works excellent! Would recommend it for anyone in need of one! 812099



- DM11993
by:

Great 809906



- DM11993
by:

Received the parts i ordered on time. The master cylinder (model 20) was an exact fit to the original on my myco boat trailer. I look forward to doing future business!! [Thumbs up] 719753



- DM11993
by:

Exelent, it fits perfect and it works good too. 683125



- DM11993
by:

Thanks!! What a great experience with etrailer.com. Trailer needed many parts, rusted, broken etc. Tried to contact maker of trailer for replacement parts, bad experience. Rude, unwilling to help, handling fees, VERY expensive shipping, and cash up front. I then turned to etrailer.com! Fantastic people on the line, sales personal were Kind, patient, and very knowledgeable about all my trailer needs. My parts arrived quickly, free shipping, and accurate. Not to mention I saved a bunch of money!!!! New Break System from front to back, new Trailer Winch. Thanks, Customer for life! 681684



- DM11993
by:

not installed yet 594399



- DM11993
by:

Works as advertised... 503180


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Ask the Experts about this Demco Accessories and Parts

  • Reverse Lockout Solenoid for a Demco DA66B Brake Actuator
    I spoke with Demco and they informed me that the Reverse Lockout Solenoid for Demco Hydraulic Brake Actuators part # DM11993 will work with a Demco DA66B Brake Actuator.
    view full answer...
  • Installing Reverse Lockout Solenoid To Stop Brakes n Trailer When Going Downhill With Motorhome
    The reverse lockout solenoids stop brake fluid from being released from the master cylinder and sent to the wheel cylinder. It does this by receiving an electric signal, usually from the reverse light circuit. That said, if you were to wire this into a circuit on the motorhome active when braking downhill then I do think it is entirely possibly to stop the brakes from being applied while going down hill. The reverse lockout solenoids are universal in design so you can use the Reverse Lockout...
    view full answer...
  • Reverse Lock Out Solenoid Recommendation for DA10 Actuator
    If you wanted to install an electric reverse lockout on the DA10 Demco actuator part # DM8102222 you would want the part # DM11993. This is confirmed to fit DA10 actuators like this. When this solenoid has power on it would prevent hydraulic pressure from building in your brake lines and assemblies.
    view full answer...
  • Replacement for Atwood 61101 Brake Actuator
    The Demco Hydraulic Trailer Brake Actuator part # 8605001 should be a direct replacement for the Atwood 61101 Brake Actuator that you have now. This is a bolt on option that mounts on 3" centers. The review you are referring to, the customer did indeed weld the brake actuator to his tongue but this is not required for installation because it is a bolt-on actuator. Unfortunately, we do no offer a bolt-on brake actuator for drum brakes with a manual lockout that will work for you therefore...
    view full answer...
  • Troubleshooting Electric Lockout on Trailer with Surge Coupler
    Your description of your trailer setup indicates that your surge coupler has an electric lockout feature to allow you to reverse the trailer without the surge brakes engaging. Some surge couplers use a manual lockout but yours has a solenoid with two wires (ground and hot) that take in the truck's reverse light signal; this closes the solenoid so no hydraulic brake fluid pressure can reach your brakes when you back up. Somewhere in your wiring you are losing your connection to the Silverado's...
    view full answer...
  • Can Reverse Lock Out Solenoid be Added to Demco Surge Actuator # DM8608601
    Yes, you can add a reverse lockout to the Demco surge actuator # DM8608601 with the # DM11993 and you'd be set.
    view full answer...
  • DA91 Demco Disc Brake Actuator for 2-5/16 Hitch Ball with Electric Lockout Needed
    The DA91 Demco surge brake actuator that you are looking for is part # DM8750311. This has a 2-5/16" coupler, comes with an electric lockout, is designed for disc brakes, and has a weight capacity of 8,000 lbs towing and 800 lbs tongue weight.
    view full answer...
  • Surge Brake Actuator Recommendation for 2004 Trailmaster with Reverse Lock Out
    The Demco Actuator part # DM8608601 that you referenced does not come with a reverse lockout but you can add one with the # DM11993. When this is wired up and activated it basically prevents the brakes of your trailer from activating so that you can backup without any issues.
    view full answer...
  • Recommended Simplest Conversion for Trailer 4-Way Flat to 5-Way for Surge Brake Lockout & Jeep 7-Way
    For your 2015 Jeep Grand Cherokee, the 7-way trailer connector is already a huge help. I recommend simply using the 7-Way to 5-Way/4-Way Trailer Adapter # 707250 or the # 707250. This will give you the 5-way that includes the reverse function to allow you to add the solenoid lockout to your surge coupler. Using a Reverse Lockout Solenoid for Demco Hydraulic Brake Actuators - Non-Bypass # DM11993 or the Titan # T4748800 will allow you to backup without the braking pressure to your...
    view full answer...
  • Recommended Replacement for ATwood 84312 Drum Brake Actuating Coupler
    The Atwood 84132 was designed for use with drum brakes, so for a qualified replacement, you'll want something compatible with a 3 inch trailer tongue with a 6K capacity, accepts a 2 inch ball and provides an electric lockout. Demco doesn't offer an 'off the shelf' exact replacement with a electric reverse solenoid because most folks just use free-backing brakes, in which case the # 8605001 you mentioned would work just fine. If you do NOT have free backing brakes, you can indeed use...
    view full answer...
  • Electric Solenoid for Demco Hydraulic Brake Actuator Channel Down
    Yes, you can install the Reverse Lockout Solenoid # DM11993 so that the Demco Hydraulic Brake Actuator # DM8759432 has an electric lockout. I confirmed this with my contact at Demco. Then for a 2" coupler I recommend the Demco Trailer Coupler # DM14976-52 since it has the eZ-Latch system, and for a lunette ring we have the 3" diameter options from Demco in the following colors: Black - # DM09557-81 Zinc (Silver) - # DM09557-95 Primed (same as the actuator) - # DM09557-97
    view full answer...
  • Demco Surge Brake Actuator Recommendation for Drum Brakes with Trigger Latch
    We have just what you are looking for. For a surge actuator designed for drum brakes by Demco we have the part # 8605001 which has a 6,000 lb capacity. Then to add an electric reverse lock out all you'd need then too is the part # DM11993 and you'd be set. The coupler has a trigger style of latch and is designed for a 2 inch hitch ball. I attached an install video for this coupler for you to check out as well.
    view full answer...
  • Will Demco Reverse Lockout Solenoid Fit a UFP Actuator
    You could get the Demco lockout solenoid # DM5404 to fit the UFP coupler. But as far as whether or not it is the right type of solenoid is what you need to look at. This one is designed to route brake fluid back into the master cylinder via a second port in the master cylinder. If that is what your UFP has then you could use this solenoid just keep in mind that it has not been tested with other brands. If your actuator does not use the bypass type of solenoid then you would use one like...
    view full answer...
  • What is the Difference Between a Manual Lockout and No Lockout Brake Actuator
    A brake actuator with a manual lockout, like part # T4500600, will have a lockout lever on the actuator that prevents the internal spring and shock from engaging the master cylinder when backing up (see photo). A no lockout brake actuator, like part # 8605001, does not have this feature, so the trailer would either need free-backing brakes or an electric lockout solenoid like part # DM11993 to keep the brakes from locking up while in reverse. Backing up a trailer with hydraulic surge...
    view full answer...
  • Do Both Pigtail Leads on Reverse Lockout Solenoid Have to Be Connected
    An electric reverse lockout solenoid like # T4748800 from Titan and # DM11993 from Demco does have two pigtail leads. These leads are non-polarized, so either wire can be used as ground or hot. We are not familiar with any single-wire self-grounding solenoids similar to these units. If there is not a strong enough ground to let full reverse light signal voltage reach the solenoid, then it is possible that it could engage only partially. This would explain why the brakes could still be...
    view full answer...
  • Installation of Reverse Wire Addition to 4-Way for 5-Way Trailer With Hydraulic Brakes
    For your Adapter 4-Pole to 5-Pole Trailer Wiring Adapter - Shorter # 47515 you will connect the blue wire to your reverse light power at the tail light. Use a circuit tester like # PTW2993 to find the power wire that only comes on when the vehicle is shifted in reverse. Don't trust wire color, just follow functions. Test all your 4-way functions as well to ensure everything is working correctly. If not, use the circuit tester to trace the wires. On the trailer side, that pin location...
    view full answer...
  • Solution for Surge Trailer Brakes that Activate When Backing Trailer Up
    Surge brakes will activate when backing the trailer up unless you do one of two things to address the problem. You can install free-backing brake assemblies on the trailer (I attached a link to a page that has all of the ones we carry) or you can use a reverse lockout solenoid which will prevent hydraulic pressure from making it to the wheel cylinders when the reverse light circuit activates the solenoid. If you have a Titan actuator you would need the part # T4748800 or if you have...
    view full answer...
  • Surge Trailer Brakes Lock Up when Backing Up on Trailer with Electric Reverse Lockout
    If your 2006 Toyota 4Runner has a 7-Way then the center pin on it should be the reverse light circuit. To test it you will need one other person, a circuit tester such as # 40376, and the vehicle wheels will need to be chocked. Basically you will have the other person sit in the vehicle, start it up, apply the emergency brake, keep their foot on the brake, and put the vehicle in reverse while the wheels are chocked (safety first). Then you can use the circuit tester to test that center...
    view full answer...
  • Is the Titan Reverse Lockout Solenoid Compatible with Non-Metallic Master Cylinders?
    The Replacement Solenoid Valve for Titan Brake Actuators with Reverse Lockouts # T4748800 is compatible with a variety of master cylinders just like the Demco Reverse Lockout # DM11993. Either will work with a plastic master cylinder like the Demco # 5650. I recommend going with the Demco Solenoid because it is made to be a non-bypass solenoid so it seems to function a little better.
    view full answer...
  • Electronic Lock Out Recommendation for Demco Actuator with Manual Lock Out
    Yes, if you wanted to install an electric reverse lockout on the Demco actuator part # DM8102222 you would want the part # DM11993. This is confirmed to fit DA10 actuators like this. When this solenoid has power on it would prevent hydraulic pressure from building in your brake lines and assemblies.
    view full answer...
  • Best Replacement Reverse Lockout Solenoid for Demco Hydraulic Brake Actuator # DM8509612
    We do have a replacement reverse lockout solenoid for the Demco Hydraulic Brake Actuator # DM8509612, but the Replacement Solenoid Valve # T4748800 that you referenced is not designed and has not been tested to fit the Demco actuators. Instead you will want part # DM11993 for just the solenoid or part # DM5837 for the kit that includes the solenoid cover. These are designed specifically for the Actuator # DM8509612. I have attached a link to an installation video of this solenoid...
    view full answer...

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Info for this part was:

Installed by:
Jeff D
Installed by:
Brent H
Expert Research:
Jameson C
Written by:
Laura H
Video Edited:
Chris R
Updated by:
Sarah W

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