The lockout switch on this swing-away actuator lets you deactivate your trailer brakes so that you can back up with ease. Foldaway design is perfect for convenient storage of your trailer, even in small garages. Call 800-298-8924 to order Titan brake actuator part number T4839100 or order online at etrailer.com. Free expert support on all Titan products. Guaranteed Lowest Price and Fastest Shipping for Swing-Away Actuator w/ Manual Lockout - Bolt On - Disc - 2" Ball - 7,500 lbs. Brake Actuator reviews from real customers.
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Price: $268.95

Swing-Away Actuator w/ Manual Lockout - Bolt On - Disc - 2" Ball - 7,500 lbs

Item # T4839100

Retail:$357.38

Our Price: $268.95

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  • Surge Brake Actuator
  • Disc Brakes
  • 2 Inch Ball Coupler
  • 7500 lbs GTW
  • Bolt-On
  • Titan
  • Manual Lockout
  • Swing-Away Tongue Coupler



Titan Brake Actuator - T4839100

The lockout switch on this swing-away actuator lets you deactivate your trailer brakes so that you can back up with ease. Foldaway design is perfect for convenient storage of your trailer, even in small garages.


Features:

  • Space-saving, swing-away design
    • Actuator pivots back, creating shorter tongue for storage
    • Foldaway portion can swing either right or left
  • Hydraulic actuator synchronizes trailer brakes with tow-vehicle brakes
  • Manual reverse lockout lets you reverse without actuating your trailer's brakes
    • Easy-to-use lever activates lockout
  • Breakaway kit included
  • Bolt-on installation


Specs:

  • Application: disc brakes
  • Ball size: 2"
  • Overall length: 28-3/4"
  • Pivot length: 23-1/4"
  • Mounting: 3" x 5" wide channel tongue
    • For 3" x 3" channel tongues, use 2 of the Titan Adapter Spacer Kit(T4842100, sold separately)
    • For 3" x 4" channel tongues, use 1 of the Titan Adapter Spacer Kit (T4842100, sold separately)
  • Capacity: 7,500 lbs
  • Maximum tongue weight: 750 lbs
  • 1-Year warranty


Dimensions

When you apply the brakes in your tow vehicle, deceleration occurs and momentum pushes your trailer toward the rear of your vehicle. With surge brake systems, the actuator is triggered as your trailer moves forward while the tow vehicle slows. The actuator telescopes, applying force to its master cylinder, which in turn supplies the necessary hydraulic pressure to engage the trailer's brakes.

The reverse lockout can be engaged with a simple lever on the coupler. Once the lockout has been activated, you can back up your trailer without triggering the trailer brakes. Always remember to disengage the lockout mechanism when preparing to move forward.



4839100 Swing Away Actuator - Disc Brakes - Bolt On



T4839100 Installation InstructionsInstallation Details T4839100 Installation instructions



Video of Swing-Away Actuator w/ Manual Lockout - Bolt On - Disc - 2" Ball - 7,500 lbs


Videos are provided As a guide only. Refer To manufacturer
installation instructions And specs For complete information.




Video Transcript for Titan Brake Actuator T4839100 Review

Today we're going to be taking a look at a Swing-Away Actuator. Now, this is a space-saving, swing-away design, so that the actuator actually swings back, which is going to create a shorter tongue for storage. The foldaway portion can swing either right or left, so you have our pivot bolt right here, and then you have the pin that would be removed. I do want to mention that the pivot bolt can be installed on either side, so it can swing either right or left. Once you remove that pin, basically what you can do is you can take the coupler, or the actuator, and you can rotate it and it brings it down to this, so it allows for a nice space-saving design. It's going to be a perfect solution for convenient storage of your trailer, especially in maybe a smaller, shorter garage, or shorter space. Now, the hydrolic actuator is designed to synchronize the trailer brakes with your tow vehicle brakes. It does come with the manual reverse lock out, so it's going to come with this easy-to-use break lock out bracket.

This actuator includes an electronic solenoid to control the hydrolic break pressure, so you'll only need to use this bracket when not connected to the tow vehicle's 12-volt DC backup light circuit. This is very easy to use. It installs in this area here. When in reverse, that prevents the solenoid from compressing, which is going to prevent your brakes from being engaged when backing up. The unit also comes with a break-away kit. That's this cable and hook.

This connects to your tow vehicle. In the event where your vehicle separates from the trailer, pull the cable, which would activate the trailer's brakes, bringing it to an eventual safe stop. It's a bolt-on installation. The unit is going to feature a steel construction with a zinc coating, so it's going to do a great job at resisting rust and corrosion. It also has a cap right here, so you remove that cap. Underneath that cap is going to be a plug.

You remove that plug and then you'll have access to the brake fluid reservoir. The connection point for the hydrolic line is right at the back of that solenoid. If you can see it in there, I know it's tight to see, but the connection point for the hydrolic line is located right there at the back of the solenoid. Again, manual and hardware is included. It's going to come with a total of six bolts and six lock nuts, three mounting points on top, three mounting points on the bottom. The unit's designed for a 2" hitch ball, it's going to offer a capacity of 7500 pounds, with a maximum towing weight capacity of 750 pounds. The way that you operate the coupler head here is you need to remove this pin.

It's got the thumb latch right here. You do that, lift up, it opens it up to accept a 2" ball. When you have the ball connected, just push this down and then place your pin back through, and it's going to secure it on there. Now, underneath the coupler head is a tab that can be pushed. Right here, there's an indicator that says, Before Towing, push up on the tab under the actuator to assure that the brakes are released. You want to do that every time before you tow, just to make sure your brakes are released. This is designed to work with a 3" by 5" ride channel tongue. If you have a 3" by 3" tongue, or a 3" by 4" tongue, you will need to use an adapter spacer kit, which is sold separately and available here at etrailer.com. I took a measurement of the overall length from very edge to very edge and got about 28-3/4 of an inch, from the center of the pivot bolt to the front measured about 23-1/2, from the center of the pivot bolt to the back measured about 5-1/2 inches. That's going to do it for today's look at the Swing-Away Actuator.


Customer Reviews

Swing-Away Actuator w/ Manual Lockout - Bolt On - Disc - 2" Ball - 7,500 lbs - T4839100

Average Customer Rating:  4.8 out of 5 stars   (19 Customer Reviews)

The lockout switch on this swing-away actuator lets you deactivate your trailer brakes so that you can back up with ease. Foldaway design is perfect for convenient storage of your trailer, even in small garages.


- T4839100

by: William C.06/11/2015


We can[t get the bolts out to work the hinge. We've applied a tension release oil and hammered away -- but still too tight. Other than that it seems like a big improvement over the previous actuator/coupler. 202527



- T4839100

by: Phil02/20/2017


Excellent customer service and product shipped the same day as ordered. Product arrived in a fully protected package and was exactly as described. 343584



- T4843600

by: Doug R10/18/2016

Review from a similar Titan Aero 7500 in Brake Actuator


Great product. I replaced my old, ineffective drum brakes with new disk brakes and a new coupler / actuator. Much more effective braking on my trailer now. Well worth the cost and effort to possibly save an accident with the crummy old drum brakes. Even better than the great product is the fantastic service from eTrailer support. I had several questions that they helped me through. They even pulled a caliper from their stock so they could see exactly what I was asking about and helped me resolve the issue. Always prompt, courteous and thorough. I never felt like they were hurrying to get me off the phone. Thanks eTrailer! 308465



- T4500600

by: George Seefken06/18/2014

Review from a similar Titan Aero 7500 in Brake Actuator


Morning Sorry for not getting back to you all sooner but I was out of town for sometime. Now for your product and company, let me say you are one of the few that I have done business with and I have to rate your complete service from start to finish as one if not the BEST I have done business with. In fact you are so good that I am going to recommend you to all the members of the Coastside Fishing Club. Thank you for your timely and excellent service. You are the best! --- George PS : If I was to add anything to this questioner it would be there were no instructions or spec's that accompanied the produce. Although your video of the product was excellent and even a dummy like me can make the install. --- Thanks Again 136362



- T4843600

by: Todd J.01/19/2015

Review from a similar Titan Aero 7500 in Brake Actuator


The kit was fairly strait forward, but the included instructions are not complete. There was nothing for the installation of the hubs, rotors, bearings, or calipers. Customer service was able to email me some generic instructions that helped. etrailer's customer service is excellent, when I discovered some bolts missing from the box and had no time to wait for replacements to be shipped out Anna from etrailer made sure that I got refunded the cost of the bolts. I am very satisfied with the service I received and will defiantly be doing business with etrailer again! 170384



- T4843600

by: Dallas06/10/2016

Review from a similar Titan Aero 7500 in Brake Actuator


We converted a tandem axle boat trailer to disk from drum. The kit worked out well with the exception of the surge hitch. The latch was flawed. When the customer pulled up the boat ramp the hitch popped off. This was after he had towed it 200 miles on the freeway, which could have been disastrous. Fortunately, no harm was done. I sent pictures to George who put me in contact with manufacturer. They were anxious to admit fault and sent a replacement. Etrailer was excellent to work with. 260093



- T4606520

by: Chuck A.02/10/2017

Review from a similar Titan Aero 7500 in Brake Actuator


ETrailer customer service staff were extremely helpful in helping me determine which acuator was best for my trailer. Shipping was fast and just as ordered. Packaging was good and installation was a snap. Will buy all my trailer parts from ETrailer. 340408



- T4843600

by: Martin T.06/01/2011

Review from a similar Titan Aero 7500 in Brake Actuator


Here's a pic of my new discs on my trai ler. 15820



- T4843500

by: Bryan R10/17/2016

Review from a similar Titan Aero 7500 in Brake Actuator


Swapped out the original drum brakes on my boat trailer with this disc kit. Everything was included and went together perfectly. One year later the brakes are working great! 307868



- T4839120

by: X-Men09/17/2016

Review from a similar Titan Aero 7500 in Brake Actuator


All Parts arrived on time and when I discovered I had not ordered a 2nd Titan adapter 1" inch spacer a 2nd was immediatedly sent out. All parts are as advertised 295965



- T4843500

by: Mike T11/07/2014

Review from a similar Titan Aero 7500 in Brake Actuator


I was concerned that the insulation was going to be too difficult; but the instruction video was very helpful. I took my time and everything came together well. 159766



- T4843500

by: Dean Hodges11/05/2014

Review from a similar Titan Aero 7500 in Brake Actuator


Super helpful phone service with quick shipping. All parts fit and worked properly. A pleasure to do business and thanks for all the help. 159538



- T4606500

by: David Beran05/14/2012

Review from a similar Titan Aero 7500 in Brake Actuator


Good product,have some installation issues,called customer service and they were very helpful.got it installed now it works great, Thanks 40480



- T4500600

by: Ray S06/16/2015

Review from a similar Titan Aero 7500 in Brake Actuator


Product exactly as described. Good Price. Arrived as promised. Highly recommend this item. Great quality. 203881



- T4606500

by: Kevin R08/24/2012

Review from a similar Titan Aero 7500 in Brake Actuator


Customer service was excellent. delivery was quick and as promised. Very good experience-fair price 52961



- T4843500

by: Dean D.01/15/2015

Review from a similar Titan Aero 7500 in Brake Actuator


Received product in good time and in good shape.I will post pictures during the installation. 169000



- T4500600

by: Ben C04/07/2015

Review from a similar Titan Aero 7500 in Brake Actuator


Every think worked out great, it got fast and in great shape thank you. 183973



- T4606520

by: David K.02/27/2017

Review from a similar Titan Aero 7500 in Brake Actuator


Installed easily and works great. Th anks. 346359



- T4843500

by: Craig06/18/2012

Review from a similar Titan Aero 7500 in Brake Actuator


Fast service and best prices. 44552

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Ask the Experts about this Titan Brake Actuator
Do you have a question about this Brake Actuator?


  • Can a Fold-Away Trailer Tongue Hinge Kit Work with Hydraulic Surge Brakes
  • You can use a fold-away hinge kit with a surge coupler but you will need to replace the hard brake line with a flexible hose like # T0777300 that you have referenced. For fold-away drum brake applications use # T4839000. For a 3 x 4 inch tongue use 2 adapters # T4842100. For disc brakes use # T4839100 and 1 of the adapters. You would still need flexible brake line with either of these couplers.
    view full answer...

  • Is the Titan Disc Brake Kit # T4843400 Good For a Salt Water Boat Trailer
  • In the Titan disc brake kit, # T4843400, the hubs and calipers are silver cad plated, the actuator is zinc-coated, and the lines are all steel. This is not an ideal set up for a salt water application. The best option would be to go with stainless steel parts. You could start with Kodiak disc brakes, # K2R35S. For 2 axles you would need 2 sets. They fit 14 inch and larger wheels and will fit a hub with a 5 on 4-1/2 bolt pattern. The rotors are the over the hub style. The actuator...
    view full answer...

  • Ranger Trail Boat Trailer Replacement Swing Away Actuator Recommendation
  • The best solution we can provide is to replace the entire swing away actuator with something like the part # T4839100 for a disc brakes that bolts on or the part # T4839000 for drum brakes that bolt on. I couldn't find any information on actuators that are marked TEO.
    view full answer...

  • Availability of a 2 to 3 Foot Fold-Away Trailer Coupler Hinge with Attached Coupler
  • If you are needed a coupler and tongue that is already attached to a fold away hinge, we have # T4839000 for hydraulic drum brakes or # T4839100 for hydraulic disc brakes. These couplers will fit a 3x3 tongue using 2 of the spacer # T4842100. The pivot length is 21-1/2 inches long. But if you are looking for a 2 to 3 foot extension to the tongue you have, you will need to have a qualified welder in a machine shop of shop that works on trailers fabricate an extension for you. The work...
    view full answer...

  • Brake Actuator Without Electric Lockout for Trailer with Kodiak Disc Brake Kit # K2R526S
  • I recommend taking a look at the Titan Swing-Away Actuator with Manual Lockout, 7,500 Pounds, # T4839400 for the Weld-On version or # T4839100 for the bolt-on version. This hydraulic actuator synchronizes the trailer brakes with those on the tow-vehicle and no electrical wiring is required. Now for the brake lines. There really would be no need to change them because your current lines will support the increased psi.
    view full answer...

  • Can an Electric Lockout be Added to Titan Trailer Disc Brake Kit, # T4843300
  • There is enough space underneath the Fold Away Coupler in the Titan Disc Brake Kit, # T4843300, to add an electric lockout, # T4748800. With the lockout installed, you will not have to use the manual lockout that comes on the coupler. If you click on the last picture for Actuator, # T4839100, you will see the space underneath.
    view full answer...

  • Breakaway Cable Assembly Replacement Parts For the Titan Aero 7500 Brake Actuator
  • I spoke with my contact at Titan and the Replacement Push Rod and Breakaway Cable Assembly, # T4502700, is the kit you will want for the breakaway cable. You will also need the Breakaway Lever, # T4597100, and the Roll Pin, # T4599500. These are all of the parts involved in the breakaway assembly for your Titan Aero 7500 Brake Actuator, # T4839100.
    view full answer...

  • Will Titan Aero 7500 Swing-Away Actuator # T4839100 Fit a Mastercraft Boat Trailer
  • I went out to the warehouse to measure the spacing and bolt/pin diameter on the Titan Aero 7500 Swing-Away Actuator # T4839100. The distance between the pin and the pivot bolt is 3-1/4 inches on center. The pin/bolt diameter is 3/4 inches. I could not say if this is a direct replacement for the one on your Mastercraft trailer so you would need to go by the measurements. This coupler can be used for a 3 x 5 inch tongue as is. If you have a 3 x 4 inch tongue you would need a spacer...
    view full answer...

  • Disc Trailer Brakes for Tandem 7,000 Pound Axles
  • We do not have a kit for 7,000 pound axles but we have disc brakes for 7,000 pound axles. I have included a link to them for you. You would then need an actuator and brake lines. The actuator used in the kit you referenced is an Aero 7500, # T4839100. It fits on 3 x 5 inch channel tongues. You can use a spacer, # T4842100, if you have a 3 x 4 inch tongue. For lines and fittings, use # 9505 or # T4830000. I have included a link to some instructions for you as well.
    view full answer...

  • Preventing Titan Leverlock # T4839100 Hydraulic Coupler From Applying Brakes When Trailer is Backed
  • The Titan # T4715400 Leverlock Brake Actuator doesn't have a reverse lock-out, so your trailer brakes will apply when you try to back up. You can prevent this by installing a solenoid valve, part # T4748800 to the rear of the actuator between the master cylinder and the brake line. The solenoid has two wires, one will ground to the trailer frame, the other will connect to the reverse light circuit on the 7-way (wire from the center pin). You'll need to make sure that the center pin on...
    view full answer...

  • Hinge Dimensions of Titan Aero 7500 Swing Away T4839100
  • The dimension from the center of the pivot pin hole to center of standard pin hole on the # T4839100 is 3.207 or 3-16/64 inches. This Swing-Away Actuator is designed to fit a 3 by 5 wide channel tongue. If you have a 3 by 3 inch channel tongue or a 3 by 4 inch channel tongue, you can use the Titan adapter spacers # T4842100 to allow this actuator to mount.
    view full answer...

  • Will Titan Aero 7500 Trailer Coupler Work with Tandem Axle Trailer with Disc Brakes on Both Axles
  • Yes, you can use the Titan Aero 7500 # T4839100 with 4 disc brake assemblies on your trailer. As long as the gross trailer weight is 7,500 pounds or less this coupler will work well for you. It couples to a 2 inch ball. I have linked a video review for you.
    view full answer...

  • Can Electronic Solenoid Be Used On Titan Aero 7500 Swing Away Actuator
  • Per Titan, you can use an electronic solenoid like part # T4748800 with the Titan Aero 7500 Swing-Away Actuator, part # T4839100. The electronic solenoid will be activated when the vehicle is put in reverse and will prevent brake fluid from flowing to the trailer brakes. The # T4839100 has a weight capacity of 7,500 lbs which is the weight of the fully loaded trailer with its cargo. This actuator has also got a 700 lb tongue weight capacity. Tongue weight is the tongue weight of the...
    view full answer...

  • Boat Trailer Coupler with Reverse Lockout Stops Working
  • The Titan Aero 7500 Swing-Away Actuator with Manual Lockout # T4839000 that you referenced is designed to allow a trailer with hydraulic DRUM brakes (both uni-servo and duo-servo types) to be backed up without the brakes actuating. This type of coupler has a manual lockout, rather than an electrically activated lockout like # T4339720, that requires you to set the lever in the correct position before backing the trailer. I researched your trailer actuator, a UFP model A-75, and found...
    view full answer...


Do you have a question about this Brake Actuator?






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Information for this part was:

Photos by:
Jackie C
Written by:
Lindsey S
Expert Research:
Michael H
Expert Research:
John H
Updated by:
Adele M
Installed by:
Cole B
Expert Research:
Jeffrey L
Updated by:
Sarah W
Updated by:
Amanda M
Photos by:
Jeffrey L

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Info for this part was:


Photos by:
Jackie C

Written by:
Lindsey S

Expert Research:
Michael H

Expert Research:
John H

Updated by:
Adele M

Installed by:
Cole B

Expert Research:
Jeffrey L

Updated by:
Sarah W

Updated by:
Amanda M

Photos by:
Jeffrey L

At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.




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