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  1. Brake Actuator
  2. Dexter
  3. Surge Brake Actuator
  4. Disc Brakes
  5. 2-5/16 Inch Ball Coupler
  6. 8000 lbs GTW
Dexter Zinc-Plated Brake Actuator - Disc - 2-5/16" Ball - Bolt On - 8,000 lbs

Dexter Zinc-Plated Brake Actuator - Disc - 2-5/16" Ball - Bolt On - 8,000 lbs

Item # T4747200
Our Price: $450.53
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Bolt-on, surge-type actuator is zinc plated for increased corrosion resistance and comes with integrated, heavy-duty coupler. Unique roller design helps reduce resistance. Designed for use with disc brakes. 1-800-940-8924 to order Dexter brake actuator part number T4747200 or order online at Free expert support on all Dexter products. Great prices and Fastest Shipping for Dexter Zinc-Plated Brake Actuator - Disc - 2-5/16" Ball - Bolt On - 8,000 lbs. Brake Actuator reviews from real customers.
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  • Reviews (17)
  • Q & A (0)
  • Photos

Dexter Brake Actuator - T4747200

  • Surge Brake Actuator
  • Disc Brakes
  • 2-5/16 Inch Ball Coupler
  • 8000 lbs GTW
  • No Lockout
  • Dexter
  • Bolt-On
  • Agricultural
  • Construction
  • Marine
  • Travel Trailer
  • Utility Trailer

Bolt-on, surge-type actuator is zinc plated for increased corrosion resistance and comes with integrated, heavy-duty coupler. Unique roller design helps reduce resistance. Designed for use with disc brakes.


  • Hydraulic actuator synchronizes trailer brakes with tow-vehicle brakes
  • Unique roller design reduces resistance during telescoping to create straight-line movement
  • Sturdy, durable steel construction resists bending in jackknife situations
  • Standard, heavy-duty coupler
  • Breakaway kit included
  • Zinc plating provides corrosion resistance
  • Bolt-on installation


  • Application: disc brakes
  • Ball size: 2-5/16"
  • Mounting: 3" wide channel tongue
  • Capacity: 8,000 lbs
  • Maximum tongue weight: 800 lbs
  • 1-Year warranty

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.

068-204-00 Dexter Axle Model 6 Actuator with 2-5/16" Ball Coupler - Disc Brakes - Zinc

Replaces Titan 4747200

Customer Satisfaction Score:

Customer Reviews

Dexter Zinc-Plated Brake Actuator - Disc - 2-5/16" Ball - Bolt On - 8,000 lbs - T4747200

Average Customer Rating:  4.8 out of 5 stars   (17 Customer Reviews)

Bolt-on, surge-type actuator is zinc plated for increased corrosion resistance and comes with integrated, heavy-duty coupler. Unique roller design helps reduce resistance. Designed for use with disc brakes.


Fast shipping and as advertised.


So far so good seems your product works great i'm very pleased.


Product works but when I back up. The actuator moves back and the brakes go on! Don’t know how to fix this. Now I put a c clamp on it to stop it from going in.

Etrailer Expert

Rachael H.


Thanks for your review of your Titan actuator coupler T4747200, while the C-clamp works, there is a safer way to deactivate the surge brakes on your coupler. You can use an item called a reverse lock out. This will get signal from your tow vehicle when it is in reverse and will NOT apply the brakes on the trailer allowing you to back up. For your Model 6 actuator you can use the T4748800 lock out solenoid, and you may want a cover like T4836800183 as a solenoid shield that will help protect the reverse lock out solenoid. You will need to make sure that the solenoid is connected to the tow vehicle reverse light circuit, so if you have a 7-way on the trailervehicle then you would need to splice in and connect to the correct line. I have included a link to one of our help articles that shows the various locations of the reverse line depending on how the trailer is wired. If you have a 4-way flat, you can convert it to a 5-way taht will splice into the vehicle side reverse wiring, and the kit HM47890 includes both the trailer and vehicle side wiring harness. Another option for wiring the vehicle is to use a 5-Way adapter like part 47515 which will allow you to leave the 4-Way wiring connector on your vehicle and add the reverse light circuit to the adapter when towing this trailer.

Bill H.


Thanks for the info!


Bought the actuator and all the disc brake conversion kit for a tandem axle boat trailer Works freaking great but I do you rinse it after every use highly recommend this product to anybody and it was even easier than I thought to put it on


Kayla did an excellent job making sure the Titian brake actuator new part would replace the old. Delivery on time all as promised. When the need arises will definitely be ordering from them.


Absolutely love it solid material all around haven't had one bit of an issue if I had another big trailer to put one on I'd buy it again Great price as well


This actuator was easy to install and has been flawless. Thanks again for your help figuring out which one I needed.


So much more reliable than the one it r eplaced.


Identical replacement


Fast and easy


Great product. ..working well!


Exactly what I ordered, and got it a day early. Great people to do business with. Thanks


Good product


Solid product, this thing is built to l ast





See what our Experts say about this Dexter Brake Actuator

  • Are There Instructions To Replace the Breakaway Lever On a Titan Model 6 Actuator
    The correct replacement breakaway lever for your Titan Model 6 Zinc-Plated Brake Actuator part # T4747200 is the Replacement Breakaway Lever with Pin for Titan Model 6 Actuators part # T4594100. In regards to installation, this will be up to you as Titan does not provide any sort of write-up for this, mostly because the people who make this repair are trained technicians. That said, I have attached a parts breakdown of a Titan Model 6 Actuator for you and this should then give you a better...
    view full answer...
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  • How to Bleed Trailer Surge Brakes
    There are a couple of ways you can bleed a trailer brake system. Titan offers the following instructions, which I have also linked for you, on bleeding the brakes: Remove the master cylinder cap and fill the reservoir to three quarters full with DOT-3 brake fluid. DO NOT allow brake fluid to contact painted surfaces since it will damage the finish. Wipe up any spills immediately and wash the area with water. If you choose to manually bleed the system, an assistant makes the job easier....
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  • Parts Needed to Convert Triple Axle Trailer from Electric Drum Brakes to Disc Brakes
    We can help you with the planned conversion of your triple axle trailer from electric drum brakes to disc brake operation. A great place to start are the articles I linked for you, which cover all of the considerations and components needed to make the switch to either hydraulic disc brakes or electric-over-hydraulic disc brakes. In the EOH set-up you will still need a trailer brake controller like the P3 # 90195 to activate the EOH actuator. For a purely hydraulic set-up you will need...
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  • What Material Is Used For The Titan Disc Brake Caliper And Caliper Hardware, #T4747200
    On Titan Disc Brake Kit and Leverlock Actuator w/ Electric Lockout - Tandem, # T4747200, I called Titan to verify the materials and they said the calipers are cast iron, the caliper hardware is stainless steel and the bleeder screw is brass. The piston in the brake caliper is made of stainless steel.
    view full answer...
  • Hydraulic Trailer Brakes Lock Up Moving Forward Using Titan Brake Actuator
    Disc brake actuators like # T4747200 do not have a check valve in them or a device to keep pressure in the system like drum brake actuators do. On a drum brake actuator there is a check valve inside the master cylinder that regulates the amount of pressure that goes back to the brakes. The wheel cylinders on hydraulic drum brakes will hold pressure as well. If the master cylinder and wheel cylinders (if the trailer has drum brakes) are fine then you could have some air in the system or...
    view full answer...
  • How to Reset the Breakaway Lever on a Titan Model 6 Trailer Brake Actuator
    I will be happy to explain resetting the breakaway lever on the Titan Model 6 actuator, # T4747200. The manual states: Resetting the Break-away Lever: (Refer to the parts diagram in the instructions linked to the right). When the break-away lever (item 7) is engaged, it is in the vertical position. It must be reset before the trailer is moved. First, carefully loosen the pressure line fitting to the master cylinder to relieve hydraulic pressure (Figure 3). Then remove the four bolts...
    view full answer...
  • How To Convert a 4-way Wiring Setup to a 5-Way to Install the Titan Disc Brake Kit # T4747200
    Converting your 4-way to a 5-way would actually be easier than you think. All you would need is a Adapter 4 Pole to 5 Pole Trailer Wiring Adapter # 20036. Plug the 4-way side of this adapter into the 4-way on your tow vehicle, run the blue lead to the reverse light circuit of your tow vehicle and then plug the 5-way side into the 5-way on your trailer. The electric lockout solenoid would activate now.. For a 5-way for your trailer wiring you would want the part # HM47910. The # T4747200...
    view full answer...
  • Resetting a Titan Surge Brake Actuator # T4747200
    To release the breakaway lever of the Titan Zinc-Plated Brake Actuator # T4747200 you will need to use a screw driver to push the clip on the lever back towards the rear of the trailer while pushing the lever back to its original position.
    view full answer...
  • Which Reverse Lockout to Use with a Titan Zinc-Plated Brake Actuator T4747200
    The correct solenoid to use with the Titan actuator part # T4747200 that you referenced is the part # T4748800. It sounds like your current solenoid is either broken or possibly has a bad ground and just isn't functioning properly.
    view full answer...
  • Replacement For 6k - 8k Atwood Disc Brake Actuator
    Atwood is no longer in business, and the part number you asked about has unfortunately been discontinued, so it is no longer available. While I know it's not the answer you were looking for, the best option is a replacement for your Atwood actuator for disc brakes, and you can choose from the hitch ball size you need to couple to as well as the weight rating. Based on my research it looks like that master cylinder was for 6k to 8k rated actuators, so you can choose from any of the following...
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  • Replacement Brake Actuator for Global Direct GDC-80
    You will need to cut that off of your 2001 Cobalt 240 to replace the actuator since there are no replacements that will fit. I recommend welding on a straight tongue so you can use a bolt-on actuator like the Dexter Zinc-Plated Brake Actuator # T4747200. This is made for disc brakes and has the same 8,000 lb rating you currently have.
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  • Surge Brake Coupler Recommendation for 2-5/16 Inch Hitch Balls
    If you are looking for just a surge coupler that is designed to work on 2-5/16 inch balls you could use a Titan Zinc-Plated, Adjustable-Channel Brake Actuator # T4747200. This will work with disk brakes, has a capacity of 14,000 lbs and will work on 2-5/16 inch balls. However, we do not have a disk brake kit with a surge coupler kit that is designed for 2-5/16 inch balls. If you need hydraulic lines you would want a Deluxe Hydraulic Line Kit # 9579-2. If you also need hubs/rotors I would...
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  • Adding Brake Assemblies To A 2010 Triton Bass Boat Trailer
    Electric brakes typically aren't recommended since water and electricity don't mix well but people use electric brakes on boat trailers all the time. To start you'll need a brake flange on the axle to mount the brake assembly to. If your axle doesn't have a brake flange then you'll need to purchase a new axle since it would cost more to have it professionally weld on than a new axle. Once you have a have a brake flange we'll then need to know the capacity of the axle to find the correct...
    view full answer...
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  • What Size are the Bearings in the Titan Disc Brake Kit # T4747200 and the Spindles That They Fit
    The bearings that are included in the Titan Disc Brake Kit, part # T4747200, are the # L44649 for the outer bearing and the # L68149 for the inner bearing. The # L44649 outer bearing has an inside diameter of 1.063, which is 1-1/16 inches and the # L68149 inner bearing has an inside diameter of 1.378, which is 1-3/8 inches. These dimensions match the dimensions on your spindle. The Titan Disc Brake kit will work on tandem axle trailers with 3,500-lb axles and a wheel size of 14 inch or...
    view full answer...
  • Actuator Recommendation for a Triple Axle Trailer Going from Drum Brakes to Disc Brakes
    Some drum brake actuators can have the check valve removed or punctured to allow it to function disc brake setups, but this won't work for a triple axle brake setup because drum brake actuators just don't have the volume to activate the disc brakes. Basically you are going to need to replace your actuator since the one you currently have won't be able to activate your new brakes. There is an off-chance that you could replace the master cylinder of the actuator and be able to convert your...
    view full answer...
  • Can the Check Valve on a Titan Drum Brake Actuator be Removed for Use with Disc Brakes
    Technically, the check valve on the drum actuator, # T4079200, can be removed. However, it is not recommended to do so because you could end up damaging the master cylinder. It would be best to go with the appropriate actuator, # T4747200. You could also replace the master cylinder in the drum brake actuator using the disc brake master cylinder # T1777405.
    view full answer...
  • Difficulty Bleeding Trailer Brakes with Titan Model 6 Actuator
    It does take quite a bit of force to manually push in an actuator with or without the cap on. But the cap should be off when you bleed the brakes. Also, the longer the board the more leverage you can put on the coupler and the easier it will be to move it. I recommend using a vacuum pump brake bleeder # PTW87030 which makes things a lot easier. Also it is worth mentioning that if the fluid has no where to go then the actuator will only push in so far. So if you haven't opened a bleeder...
    view full answer...
  • Recommended Replacement Actuator for a GDC 80 Brake Actuator
    Mike, unfortunately there aren't any replacements for your GDC 80 brake actuator so you will have to replace it. I recommend going with the Dexter Zinc-Plated Brake Actuator # T4747200 which is made for disc brakes and has the same 8,000 lb capacity your current actuator has.
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  • How to Reset Breakaway Of Titan Model 6 Actuator
    I will be happy to explain resetting the breakaway lever on the Titan Model 6 actuator, # T4747200. The manual states: Resetting the Break-away Lever: . When the break-away lever (item 7) is engaged, it is in the vertical position. It must be reset before the trailer is moved. First, carefully loosen the pressure line fitting to the master cylinder to relieve hydraulic pressure. Then remove the four bolts (item 10) that secure the master cylinder assembly to the outer case. The flat...
    view full answer...
  • Does the Titan Zinc-Plated Brake Actuator T4747200 Have a Reverse Lockout
    The Titan Zinc-Plated Brake Actuator part # T4747200 does not come with a lockout but one can be added easily using the Solenoid Valve for Titan Brake Actuators with Reverse Lockouts part # T4748800. The lockout is what allows you to back up the trailer without locking up the brakes.
    view full answer...
  • Adding Brake Flanges To An Aluminum Trailer with 2,200 lb Axles
    What you will want to do is purchase the part # 4-34 as this is a brake mounting flange designed for 2.2k axles, provided your axle is a 1-3/4" round tube. The brake mounting flange needs to be welded on perfectly square and concentric and if it is off by even just a little bit, this can lead to all kinds of problems with trailer ride, stability, tire, and suspension wear. We strongly recommend that brake flanges be welded on by a professional shop that routinely works on trailers and...
    view full answer...
  • Are the Brake Lines Adjustable in Titan Disc Trailer Brake Kit, # T4747200
    On the brake lines that come with the Titan Disc Brake Kit, # T4747200, the tubes are a set length and are not adjustable. The fittings do come pre-flared. If you click on the second to last picture and then point your mouse at the picture to zoom, you can see the fittings better. The kit does come with instructions. We also have some videos that would be helpful. I have included links to them for you to view.
    view full answer...
  • 8k Disc Brake Surge Actuator Recommendation
    It sounds like you have a # T4079200 and are looking to convert it so that it will be compatible with disc brakes. If you were using a single axle trailer you could simply ram a screw driver through the back of the check valve in the master cylinder so that the actuator would have higher pressure like what disc brakes require, but since you have a tandem axle trailer this setup would not give you enough fluid displacement to activate your brake assemblies. You will have to upgrade to the...
    view full answer...
  • Replacement for Titan Model 6 Trailer Brake Actuator
    That is a great photo, thank you; and while there are certain repair parts available for a Titan Model 6, I recommend replacing it altogether. The reason for this is the corrosion looks to have taken its toll on the actuator, and is at the point where a replacement makes the most sense in terms of safety and value. The Titan Model 60 is still a good option, and the right one will depend on if you have disc or drum brakes: - Disc Brakes: Titan Zinc-Plated Brake Actuator - Disc - 2-5/16"...
    view full answer...
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