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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 w/ Electric Lockout - Disc - 2-5/16" Ball - 8,000 lbs

Dexter Zinc-Plated Brake Actuator w/ Electric Lockout - Disc - 2-5/16" Ball - 8,000 lbs

Item # T4747220
Our Price: $419.71
Brake Actuator
This item qualifies for Free Shipping
Shipping Weight: 31 lbs
In Stock
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Bolt-on, surge-type actuator is zinc plated for increased corrosion resistance and comes with integrated, heavy-duty coupler. Electric reverse lockout lets you back up without activating the trailer brakes. 1-800-940-8924 to order Dexter brake actuator part number T4747220 or order online at Free expert support on all Dexter products. Great prices and Fastest Shipping for Dexter Zinc-Plated Brake Actuator w/ Electric Lockout - Disc - 2-5/16" Ball - 8,000 lbs. Brake Actuator reviews from real customers.
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  • Reviews (18)
  • Q & A (0)
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  • Why etrailer?

Dexter Brake Actuator - T4747220

  • Surge Brake Actuator
  • Disc Brakes
  • 2-5/16 Inch Ball Coupler
  • 8000 lbs GTW
  • Bolt-On
  • Electric Lockout
  • Straight Tongue Coupler
  • Dexter

Bolt-on, surge-type actuator is zinc plated for increased corrosion resistance and comes with integrated, heavy-duty coupler. Electric reverse lockout lets you back up without activating the trailer brakes.


  • Hydraulic actuator synchronizes trailer brakes with tow-vehicle brakes
  • Electric reverse lockout lets you back up without actuating trailer brakes
    • Built-in shield protects solenoid valve from the elements
  • 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.

Electric reverse lockout with solenoid is automatically activated when the tow vehicle is shifted into reverse. To use this feature, you must have a 5-pole flat, 6-way round or 7-pole wiring harness.

068-204-02 Dexter Axle Model 6 Actuator with 2-5/16" Ball Coupler - Disc Brakes - Solenoid Lockout and Cover - Zinc

Replaces Titan 4747220

Customer Satisfaction Score:

Customer Reviews

Dexter Zinc-Plated Brake Actuator w/ Electric Lockout - Disc - 2-5/16" Ball - 8,000 lbs - T4747220

Average Customer Rating:  4.4 out of 5 stars   (18 Customer Reviews)

Bolt-on, surge-type actuator is zinc plated for increased corrosion resistance and comes with integrated, heavy-duty coupler. Electric reverse lockout lets you back up without activating the trailer brakes.


Trailer coupler was delivered on time. It bolted up to the trailer ok. However, a disc brake lock out solenoid is in a separate box contained in the shipping box. It threads into the surge brake fluid outlet ok, but the solenoid outlet thread and end shape is a mystery that sent me running around town to locate a fitting with the right thread and shape. Very frustrating that the kit did not have a fitting that would convert to something standard. Still searching after two days of searching. Makes this kit relatively worthless til you solve this problem.

The solenoid valve for the Titan brake actuators has one eighth inch pipe NPT threads on the make end and three eighth - 24 inverted seat threads on the female side that a three sixteenth size brake line would install to. We do have a video that is useful about the solenoid and installation.
-- Etrailer Expert Jenny N - 08/09/2022


Great value but very difficult to bleed the brake lines


Not sure of actual product performance yet. But you guys really need to add a small instructional sheet. Wasted half an hour trying to figure out fittings before I finally figured out that since reverse solenoid was not attached it replaced the fitting already on the cylinder. Then after I had it together I saw that the longer shield that was included loose for the reverse lockout solenoid could NOT be put on without removing short shield which could not be removed without taking off the brake lines that I had just installed. Half sheet of paper with 2 or 3 sentences is all you would need to include.

Works fine, But there are many times that a bypass or lockout is needed.
Dennis G - 09/13/2018


The coupler itself met expectations and is functioning perfectly. However, there are three things I would like to report that would make the installation easier. First, some written instructions would be helpful. There was NO documentation that came with this major item. Next, I was unable to attach the solenoid cutoff for the coupler and determined the solenoid was a different thread size than the coupler's reservoir fitting. I spent extra time and two trips to the hardware store to correct this only to discover that the fitting on the reservoir needed to be removed AND REPLACED with the solenoid connection. The last item relates to the protective cover for the solenoid. A separate part is included that protects the solenoid and its fitting but nothing tells you that this needs to be installed in place of the shorter cover supplied on the coupler. One additional point is the lack of instructions to properly bleed the braking system. It is a little tricky on this item and knowing the correct process would have been helpful instead of relying on internet searches to find help.


This product is a champ when it comes to trailer brakes the reverse actuator automatically disengages the brakes so you won't have to manually . Easy to install looks good


The coupler itself met expectations and is functioning perfectly. However, there are three things I would like to report that would make the installation easier. First, some written instructions would be helpful.
I started to replace the nut that goes to the backup actuator. I recall a review and looked at the video. No nut replacement, just screw in the actuator. The nut is just used for shipping. The product is excellent and my identical Titan lasted over 10 years of salt water use. Glad to see that the quality has not decreased. Will buy again from etrailer.


This total break overhaul was actually fun to do because i got everything from etrailer and I knew it was a perfect fit! One year and thousands of miles later I still love it. If your on the fence, take the plunge, you WILL be happy..

Trailer a 25ft 6500 lb boat up an down the East coast in salt water.


Buying experience was great from ordering to receipt. Free shipping always makes, the ordering a better experience. Item was packaged very well and hitch was exactly as described. I will do business with etrailer again.


Quicker than expected delivery. The phonw help was very knowledgable and did a great job of getting the right brake acuator for my needs. The local shop would have sold me the wrong one for more money. I'm very satisfied.


After looking for anew part for our boat trailer with no luck. They did all they could do to get it to us before Vacation. Came in just in time and good condition. Product worked well and Will call on you for our many needs. Thank you for making our vacation a safe and happy one.


excellent acuator with shield, fits magic tilt 2460


It's on the trailer. all hooked up. Looks great. Very well made.


perfect fit . Works great





Arrived in perfect order very well done.


Arrived in perfect order very well done.


See what our Experts say about this Dexter Brake Actuator

  • Troubleshooting Titan Zinc-Plated Brake Actuator # T4747220 That Wont Compress
    Thank you for your recent purchases. My first thought is that there may be a short in your trailer wiring for the reverse lockout circuit. If there were a short somewhere on the trailer power could be reaching the reverse lockout solenoid when it is not supposed to. This could happen if the trailer's 12V auxiliary power circuit were shorted to the frame. You can try disconnecting the wiring for the reverse lockout solenoid to see if the coupler will engage (compress) when you back up. Other...
    view full answer...
  • Hardware Needed to Install Titan Zinc-Plated Surge Brake Actuator # T4747220
    Thanks again for your purchase. We really appreciate your business. As for mounting the Zinc-Plated Surge Brake Actuator, # T4747220, Titan recommends using at least Grade 5 hardware and lock nuts. You can just use the 2 holes for a 5/8 inch bolt or for added strength you can also use the remaining 3 holes for a 1/2 inch bolt as well. A 4 inch long bolt should be sufficient but you will want to make sure that there are at least 2 or 3 threads on the outside of the lock nut once you have...
    view full answer...
  • Troubleshooting a Trailer with a Titan # T4747220 Brake Actuator
    I spoke with my contact at Titan about the issue you are having with the Titan Zinc-Plated Brake Actuator w/ Electric Lockout - Disc - 2-5/16 inch Ball - 8,000 lbs, part # T4747220, on your trailer. He informed me that there is no pressure adjustment on the trailer actuator, and that the breaking intensity is completely proportional to the braking intensity of the towing vehicle. He said most likely that the brake system needed to be bled again. There is a way to test the brake system....
    view full answer...
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  • Titan Zinc-Plated Brake Actuator Front Mounting Hole to Rear Shroud Dimension
    The distance from the forward most mounting hole of the Titan Zinc-Plated Brake Actuator w/ Electric Lockout # T4747220 that you referenced to the very end of the solenoid shield is 18 inches.
    view full answer...
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  • Can Titan Model 6 Surge Brake Actuator Replace GDC Model 80
    The Titan Surge Trailer Actuator part # T4747220 will pretty easily install in place of what you have now but looking at the picture of what you have and what looks like an equal distance between the mounting holes it would seem most likely that you would have to drill at least one new hole to install the # T4747220 that you referenced. Or you could have it welded.
    view full answer...
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  • What is the Mounting Hole Spacing on Titan Zinc-Plated Brake Actuator T4747220
    I went out to the warehouse and measured the bolt holes on actuator # T4747220. The 2 larger holes are spaced 5 inches apart on center. I have included a picture showing this and other measurements for you.
    view full answer...
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  • How Many Bolts Needed to Mount Titan 8K Surge Coupler T4747220
    The Titan 8K Surge Coupler # T4747220 should be installed using all 3 of the smaller mounting holes or both of the larger holes (using hardware with dimensions that match) to secure it to the trailer's 3-inch-wide tongue.
    view full answer...
  • Is an Electric Reverse Lock Out Required for Backing Up a Trailer with Surge Brakes
    There are 3 ways to allow a trailer with surge brakes to back up. There can be an electric reverse lockout, a manual lockout, or you can use free-backing brake assemblies if the brakes are drums. The easiest and most-preferred method is the electric reverse lockout like what comes on the Titan Model 6 part # T4747220. Or for just the lockout you would want the part # T4748800. I also attached a link to a page that has all of the free backing brakes we offer.
    view full answer...
  • Master Cylinder to Convert Titan Surge-o-Matic Model 6 Actuator to Disc Brake Operation
    You are correct that disc brakes require an actuator with higher psi pressure than what is required by drum brakes. Drum brakes need pressure of 1000-psi but discs need 1500 to 1600-psi. You can convert your Titan Surge-O-Matic Model 6 actuator to disc brake operation by replacing the master cylinder with part # T1777405. This kit includes the master cylinder, mounting plate, hex bolt, push rod assembly and installation hardware. If your brakes locked up this should not be due to the lower-pressure...
    view full answer...
  • Can a Surge Brake Actuator be Installed on a Swing Away Trailer Tongue?
    As long as a flexible line is used from the back of the actuator to the point where a T fitting will split the lines to the brakes, there will be no issue using the Titan Zinc-Plated Brake Actuator w/ Electric Lockout - Disc # T4747220 with a swing away tongue.
    view full answer...
  • Replacement Surge Brake Actuator For Worn Out Tie Down Engineering Model 8000
    Based on the issue you are describing the Tie Down Engineering Surge Brake Coupler Model 8000 on your trailer has a shock that is worn out, but since this model actuator has been discontinued there are no replacement parts available any longer. Your best bet will be replacing the actuator. I recommend either the Titan Zinc-Plated Brake Actuator - Drum - 2-5/16" Ball - Bolt On - 8,000 lbs # T4079200 if you have drum brakes, or the # T4747220 if you have disc brakes. Both have the same...
    view full answer...
  • Surge Brake Actuator Coupler Replacement Recommendation for Global Direct Component GDC-80
    Info on your coupler is harder to find but it looks like your coupler is a 8,000 lb rated surge brake actuator. Which for that we have the Titan kit part # T4747220 that is a disc brake actuator designed for disc brake use. Or we have the part # T4079200 which is similar but for drum brakes.
    view full answer...
  • What Brake Actuator Replaces The TDE Model LP8000 Class IV Actuator
    I do have a solution for your you. The replacement brake actuator that you need is either the Titan Zinc-Plated Brake Actuator w/ Electric Lockout - Disc - 2-5/16" Ball - 8,000 lbs, part # T4747220, which will work if your trailer has disc brakes or the Titan Zinc-Plated Brake Actuator - Drum - 2-5/16" Ball - Bolt On - 8,000 lbs, part # T4079200, which works for trailers with drum brakes. I have included product description links and video demo links below.
    view full answer...
  • Recommended Replacement Actuator for a TDE Model LP8000 Class lV Actuator
    We have a couple of options for replacing your TDE model LP8500 actuator. The Titan Zinc-Plated Brake Actuator item # T4079200, you were looking at, will work great if you have drum brakes. If you have disk brakes you will need item # T4747220. These actuators have a slightly lower capacity at 8,000 lbs but this will still be sufficient on your Mastercraft X46 trailer.
    view full answer...
  • Can An Electric Reverse Lockout Solenoid Be Submerged?
    An electric reverse lockout solenoid like found on the Titan Zinc-Plated Brake Actuator w/ Electric Lockout # T4747220 should not be submerged while connected to your 7-way. Electricity and water are not a good combination, so keeping your reverse lockout solenoid connected at the point of submersion is not a good idea as it could short out your entire trailer connection on your vehicle. What we recommend is backing your trailer up to that point with the connection, but stopping to then...
    view full answer...
  • Can Titan Actuator-Coupler for 2-5/16-Inch Ball Be Converted to Lunette Ring/Pintle Type
    My contact at Titan confirmed that you CAN change out just the inner portion of your Titan actuator ball coupler # T4747220 to convert it to a lunette ring type like # T4748000. The conversion kit you need is part # T4045600183, their Replacement Inner Slide Assembly with 3-Inch Lunette Ring for Titan Model 6 Actuator. I have linked our main page for pintle hitch components.
    view full answer...
  • Replacing a GDC100 Surge Brake Actuator
    I was unable to find much information about the Global Direct GDC100, but that doesn't mean we don't have anything available for you. The Titan Brake Actuator # T4747220 is rated to 8,000 pounds and has electric lockout. The Titan # T4750820 is much the same, but it is rated up to 12,500 pounds if more capacity is needed. Both of these options are also rate for use with disc brakes. If you needed an actuator for drum brakes, the Titan # T4079200 will be rated to 8,000 pounds and the Titan...
    view full answer...
  • Recommended Surge Brake Actuator For Disc Brakes With Electric Lockout For 1993 Boat Trailer
    To make sure you choose the right disc brake assembly that will work with your trailer spindle, you will have to either measure your spindle or get the part numbers from the existing bearings and seal. Along with the axle capacity, wheel diameter and wheel bolt pattern. You may have a sticker or plate on your axle with the capacity listed. I have attached a drawing that shows where you need to measure on your spindle if you are unable to find the part numbers on the bearings or seal. If...
    view full answer...
  • Replacement Brake Actuating Coupler for Upgrade to Disc Brakes
    The bolt hole dimensions of the Demco Brake Actuator # DM8669112 are 12-1/2 inches on center and 3 inches on center. I've attached a photo to assist. The Titan # T4747220 has mounting holes that are 3 inch on center so 2 of the 3 holes will align with your current coupler. Instead of changing out your entire coupler, you may want to simply change out your master cylinder on your Demco Actuator using the Replacement Master Cylinder for Demco Actuators - Disc Brakes # 5672. This will...
    view full answer...
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  • Replacement Actuator For A TDE Model LP8500 On A 2017 Nitro Boat Trailer
    I have a solution for you, but we do not offer replacement parts for your TieDown Engineering LP8500 actuator and we know that they are becoming more difficult to find. We do have a comparable option depending on what type of brakes that you currently have. The Titan Zinc-Plated Brake Actuator # T4079200 is used for drum brakes and The Titan Zinc-Plated Brake Actuator w/ Electric Lockout # T4747220 is used for disc brakes. Both have a 8,000 pound capacity but will work perfect with your...
    view full answer...
  • Master Cylinder Replacements for Titan Actuators
    I was unable to find an order number for you so I'm not entirely sure what you have, but were you referring to the Replacement Master Cylinder Cap with Diaphragm for Titan Model 10 and 20 Brake Actuators # T4830601? I only ask because there is not a model 0100, but there is a Model 10 such as part # T2477600. A master cylinder cap will only fit the direct model it is designed for so you will need to know your actuator's model in order to get the correct cap. The Replacement Cap for...
    view full answer...
  • Replacement Surge Brake Actuator for Titan Aero 6000 for Disc Brakes
    A Titan Aero 7500 will fit in place of your Titan Aero 6000 but the only one available for disc brakes is the Swing-Away Actuator w/ Electric Lockout # T4839100. This fits a 3" x 5" channel tongue but can fit a 3" x 4" or 3" x 3" with adapter spacers kit # T4842100 or # T4842100 accordingly. If you are looking for more of a traditional actuator then you can use either the 7.5K # 099-175-20 (with 3" distance between bolt holes) or the 8K # T4747220 (with a few different bolt holes).
    view full answer...
  • Replacement Trailer Coupler For Replacing Titan Model 6 Surge Brake With Electric Over Hydraulic
    For replacing your Titan Model 6 # T4747220 I recommend the Demco Channel Tongue Trailer Coupler # DM15931-95. They will share the same 3" and 2" bolt bolt hole separation that you are currently using on your trailer. You will need a etrailer Coupler Lock # e98888 if you wish to lock this coupler as it requires a 3" minimum span.
    view full answer...
  • Replacement for UFP A60 Actuator on EZ Loader Boat Trailer
    To replace your old UFP A60 actuator I recommend using the Titan Zinc-Plated Brake Actuator w/ Electric Lockout - Disc - 2-5/16" Ball - 8,000 lbs # T4747220 which comes with an electric lockout. This actuator bolts on to 3" wide channel tongues and fits 2-5/16" hitch balls. This actuator is designed to work with disc brakes and will work on trailers with up to 8000-lbs capacities. I've linked review videos of these for you to check out.
    view full answer...

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