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  1. Brake Actuator
  2. Dexter
  3. Surge Brake Actuator
  4. Disc Brakes
  5. 2-5/16 Inch Ball Coupler
  6. 12500 lbs GTW
Dexter Zinc-Plated Brake Actuator w/ Electric Lockout - Disc - 2-5/16" Ball - 12,500 lbs
Dexter

Dexter Zinc-Plated Brake Actuator w/ Electric Lockout - Disc - 2-5/16" Ball - 12,500 lbs

Part Number: T4750820
$634.91
Retail:$873.03
You Save: $238.12
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Corrosion-resistant, surge-type actuator bolts over 3" wide trailer tongue and includes standard, heavy-duty coupler. Electric reverse lockout lets you back up without activating the trailer brakes. Unique roller design helps reduce resistance. 1-800-940-8924 to order Dexter brake actuator part number T4750820 or order online at etrailer.com. 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 - 12,500 lbs. Brake Actuator reviews from real customers.
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  • Reviews (50)
  • Q & A (0)
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Dexter Brake Actuator - T4750820

  • Surge Brake Actuator
  • Disc Brakes
  • 2-5/16 Inch Ball Coupler
  • 12500 lbs GTW
  • Bolt-On
  • Farm Trailer
  • Boat Trailer
  • Construction Trailer
  • Travel Trailer
  • Utility Trailer
  • Electric Lockout
  • Dexter
  • 3 Inch Channel Tongue

Corrosion-resistant, surge-type actuator bolts over 3" wide trailer tongue and includes standard, heavy-duty coupler. Electric reverse lockout lets you back up without activating the trailer brakes. Unique roller design helps reduce resistance.


Features:

  • 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 is corrosion resistant
  • Bolt-on installation


Specs:

  • Application: disc brakes
  • Ball size: 2-5/16"
  • Mounting: 3" wide channel tongue
  • Capacity: 12,500 lbs
  • Maximum tongue weight: 1,250 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.



068-508-20 Dexter Axle Model 10 Actuator with 2-5/16" Ball Standard Coupler - Disc Brakes - Solenoid Lockout and Cover - Zinc

Replaces Titan 4750820





Customer Satisfaction Score:

Ratings & Reviews

4.4

50 reviews
Corrosion-resistant, surge-type actuator bolts over 3" wide trailer tongue and includes standard, heavy-duty coupler. Electric reverse lockout lets you back up without activating the trailer brakes. Unique roller design helps reduce resistance.

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This Company is exceptionally good.



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Arrived in perfect order very well done.



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Arrived in perfect order very well done.



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perfect fit . Works great



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Excellent



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excellent acuator with shield, fits magic tilt 2460



by:

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



by:

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.



by:

Brakes work great, had to get additional parts from the auto parts store to make the braked more serviceable in the future.



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Great value but very difficult to bleed the brake lines



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I love etrailer everything was perfect



by:

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.


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See what our Experts say about this Dexter Brake Actuator

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  • Tips For Removing Stuck Master Cylinder Cap On A Dexter T4750820 Actuator
    Sometimes dust and dirt can get down in the threads of the master cylinder cap and they can get stuck on there real good. Unfortunately there is not really a trick to getting it off, other than using force. A little WD40 may help but I would use that as sparingly as possible. If you have no choice but to break the cap, it can be replaced with part # T4830601.
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    The direct replacement for your Titan Model 6 4079200 is the # T4079200. However, you have disc brakes on your trailer, not drum brakes. For a replacement designed for drum brakes you can use the # T4750820 which is the Model 10 and replaced the Titan 4750820. This has a 12,500 lb capacity and also fits a 3" channel. For replacement calipers you will need to know the axle capacity as well as the brand. For example, if you have 3,500 lb axles with Kodiak brakes you can use the # KDBC225DAC....
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    We've checked the part number you gave us before and the replacement for it is the part # T4750820 which is for disc brakes. This one does come with a reverse lock out solenoid. If it has rust all over it I'd consider just replacing the entire thing and starting over with everything new. If you can get me the capacity of your axles and the bolt patterns I can help you pick out stainless steel brake components that won't rust as well.
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  • Will the Titan T4750820 Actuator Replace Global Direct Components GDC-120 Without Drilling New Holes
    Since the Titan Zinc-Plated Brake Actuator # T4750820 that you referenced has a weight capacity of 12,500 lbs and a tongue weight capacity of 1,250 lbs it will serve well as a replacement actuator for your application. The mounting holes are spaced differently than what you show which means you will need to drill new holes into your trailer tongue. Your mounting holes are spaced in a straight line where the mounting holes for the Titan actuator form more of an arc. Instead of the Actuator...
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  • Are Replacement Parts for the GDC-100 Available
    I may have a solution for you, but we don't have replacement parts for a GDC-100 actuator. It looks like the GDC-100 is a heavier duty actuator designed to work with disc brakes, so the # T4750820 would be a good option to use as a replacement. This is a higher capacity disc brake actuator with an electric lock out, so it's ideal for a boat trailer that has disc brakes..
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  • Replacement Brake Actuator For A Gross Trailer Weight Of 10,000 Lbs.
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    The Fitting in the back of your actuator, # T4750820, will need to be removed to install the Solenoid Valve for Titan Brake Actuators, # T4748800. I have posted a photo showing this fitting. Once the fitting is removed you will install the solenoid valve directly into the back of the master cylinder, see second photo, then attach the brake line from the trailer directly to the solenoid. The fitting that was removed will not be needed.
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  • Replacement Coupler on Trailer for GDC-100
    We don't have replacement parts for a GDC 100 actuator but we do have replacements for it that would work great like the # T4750820. This is a higher capacity disc brake actuator with an electric lock out.
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  • Complete Disk Surge Brake Setup Recommendation for a Rogue Tandem Axle Boat Trailer
    We have everything you need, just not in one kit. For a disk brake kit that will bolt up to your 4 bolt brake flanges and will slip over your 5 on 4-1/2 inch bolt pattern you would want the part # K2R35D for a dacromet finish. Or if your trailer will see salt water I would recommend the stainless steel kit part # K2R35S. You will need a quantity of two of these kits for both axles. For a brake line kit you will need the part # DM5425. And then for a surge brake actuator you would want...
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  • How to Identify Correct Replacement Brake Actuator Coupler for Triple Axle Boat Trailer
    You can easily see whether you have drum or disc brakes on your triple-axle boat trailer by simply removing one wheel. You will then see either a hub/drum assembly like # AKHD-545-35-EZ-K if you have drum brakes or a hub/rotor assembly and a brake caliper like those in kit # K2HR526D if you have disc brakes. You'll need to select a replacement actuator of the appropriate type to match the brakes on the trailer. We offer both drum and disc brake actuator couplers. These have different operating...
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  • How Does an Electric Reverse Lockout Solenoid on a Titan Coupler Get Wired
    On the reverse lockout solenoid on Titan coupler # T4750820, one wire will need to be grounded to the trailer frame. The other wire needs to connect to the reverse light circuit on the trailer side connector. When the vehicle is placed in reverse it powers the solenoid and will not let fluid back to the brakes allowing you to back the trailer without the brakes engaging.
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  • Dimensions Of Titan Zinc-Plated Brake Actuator w/ Electric Lockout T4750820
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  • Recommended Surge Brake Actuator for Tandem Axle Boat Trailer
    A surge brake actuator will need to be based off of the gross vehicle weight rating (GVWR) of the trailer with the boat loaded. As long as the boat and trailer do not weigh more than 12,500 lbs I recommend using the Titan Zinc-Plated Brake Actuator part # T4750820. The Titan actuator will bolt onto a 3" wide straight tongue trailer, fits a 2-5/16" hitch ball, and has an electric reverse lockout solenoid. The actuator has a zinc plating for corrosion resistance as well as an integrated...
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  • Converting EZ Loader Tandem Axle Aluminum Boat Trailer to Disc Brakes
    A great place to start your boat trailer brake conversion project is the linked article that covers the topic of changing a trailer to disc brake operation. The article includes links and details about the whole conversion process. If you choose to convert your tandem axle aluminum boat trailer from hydraulic drum to hydraulic disc brakes you will also need to replace your actuator since disc brakes require higher pressure to operate. You may be able to replace just the master cylinder...
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  • Straight Titan Model 10 Actuator for Disc Brakes and Electric Lockout
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  • Troubleshooting a Leaking Reverse Lock Out Solenoid
    Over tightening the fitting can cause it to never seal again properly. Your best option would be to make sure you have the line perfectly square in the fitting as you tighten it. Flexible line will have to be used. I attached an install video for the Solenoid part # T4748800.
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  • Recommended Disc Brake Kit for 10,000lb Pontoon Trailer with 3,500lb Triple Axles with Drum Brakes
    Sounds like you want to change from drum brakes to disc brakes on your Pontoon trailer with 3 Rockwell TA-35 torsion axles. If this is correct then yes, it is possible, and I can help! The 2/rcmhs-8 you were looking at is part # K2HR35D-8. It has a Dacroment finish for longer durability, is listed to work with the 10 inch wheels and has a 5 on 4-1/2 bolt pattern. Since you have a triple axle you will need 3 sets. It does include the races needed but will need both the bearings inner...
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  • Availability of Disc Brake Actuator/Coupler Without Electric Reverse Lockout Feature
    An electric reverse lockout solenoid like Titan # T4748800 is included in their disc brake actuator/coupler # T4750820 which you referenced. Electric lockouts can be retro-fitted to a compatible coupler; they can also be removed if you wanted to eliminate the reverse lockout feature. Titan actuator/coupler # T4750820 that you referenced fits a 3-inch-wide trailer tongue, includes a breakaway kit and bolts on to your trailer tongue. If you prefer a disc brake actuator/coupler without...
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Info for this part was:

Employee Lindsey S
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Expert Research:
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Employee Adam R
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Employee Adele M
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