bing tracking image
  1. Brake Actuator
  2. Titan
  3. Surge Brake Actuator
  4. Disc Brakes
  5. 1-7/8 Inch Ball Coupler
  6. 2 Inch Ball Coupler
Titan Zinc-Plated Brake Actuator w/ Electric Lockout - Disc - Multi-Fit Ball - Bolt On - 6,000 lbs

Titan Zinc-Plated Brake Actuator w/ Electric Lockout - Disc - Multi-Fit Ball - Bolt On - 6,000 lbs

Item # T4745720
Our Price: $299.71
You Save: $19.71
Brake Actuator
This item qualifies for Free Shipping
Shipping Weight: 21 lbs
In Stock
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images


Need help with installation?
Locate installers near me
Easy and convenient turn-wheel latch lets you fit the coupler on this corrosion-resistant, surge-type actuator to a hitch ball measuring 1-7/8", 2" or 50 mm. Integrated reverse lockout lets you back up without activating the trailer brakes. 1-800-940-8924 to order Titan brake actuator part number T4745720 or order online at Free expert support on all Titan products. Great prices and Fastest Shipping for Titan Zinc-Plated Brake Actuator w/ Electric Lockout - Disc - Multi-Fit Ball - Bolt On - 6,000 lbs. Brake Actuator reviews from real customers.
  • All Info
  • Reviews (16)
  • Q & A (0)
  • Photos
  • Why etrailer?

Titan Brake Actuator - T4745720

  • Surge Brake Actuator
  • Disc Brakes
  • 1-7/8 Inch Ball Coupler
  • 2 Inch Ball Coupler
  • 6000 lbs GTW
  • Bolt-On
  • Electric Lockout
  • Straight Tongue Coupler
  • Titan

Easy and convenient turn-wheel latch lets you fit the coupler on this corrosion-resistant, surge-type actuator to a hitch ball measuring 1-7/8", 2" or 50 mm. Integrated 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
  • Easily adjustable design fits 1-7/8", 2" and 50-mm balls
    • Turn handwheel to tighten coupler around ball
  • Breakaway kit included
  • Zinc plating provides corrosion resistance
  • Durable steel construction
  • Bolt-on installation - mounting hardware not included
    • Assembly required
  • Made in the USA


  • Application: disc brakes
  • Ball size: 1-7/8", 2" or 50 mm
    • Some adjustment may be required
  • Mounting: 3" wide channel tongue
  • Distance between mounting holes: 3"
  • Capacity: 6,000 lbs
  • Maximum tongue weight: 600 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.

4745720 Titan Model 60 Multi-Fit Actuator for Disc Brakes - Solenoid Lockout and Cover - Zinc

Customer Satisfaction Score:

Customer Reviews

Titan Zinc-Plated Brake Actuator w/ Electric Lockout - Disc - Multi-Fit Ball - Bolt On - 6,000 lbs - T4745720

Average Customer Rating:  4.8 out of 5 stars   (16 Customer Reviews)

Easy and convenient turn-wheel latch lets you fit the coupler on this corrosion-resistant, surge-type actuator to a hitch ball measuring 1-7/8", 2" or 50 mm. Integrated reverse lockout lets you back up without activating the trailer brakes.


This Actuator is perfect for my project; a light weight tear drop trailer. Really well made, and the shipping and customer service is really first rate. Great to deal with etrailer. More later after I get a chance to test it.


The service I received was excellent.
was very knowledgeable and knew exactly what I needed.
Parts are on the trailer and everything works great.
Would definitely recommend the company.

by: is a great company to do business with, and they definitely get 5 stars from me. Great website (love the videos and things are easy to find) , great selections, good prices, fast delivery, great customer support, etc. Now, for the surge actuator...

I'll give the surge actuator 5 stars, too, but with some hesitation about a couple of minor things. First, let me say that I was absolutely thrilled with the performance of the actuator on its first road trip. We have a 5000 lb. combined boat and trailer weight, and while creeping down a very steep hill, just to see what things felt like, having the trailer behind me didn't feel any different than just driving my Yukon without the trailer. Also, stopping and then starting up from a stop sign was as smooth as silk -- no jerking or tugging feeling whatsoever. After pulling the trailer for about 30 minutes, I stopped and measured the temperature of the trailer wheels near the hubs, and they were at 75-80 degrees on a 60-degree day. Like I said, I was trilled, especially after previously dealing with an actuator that performed badly in all of the ways that this new one performed so well. That's why I'm giving the actuator 5 stars, but like I said, it's with some hesitation and here's why...

I'm not sure I'm a fan of the screw-type ball latch that's on the actuator. I wrestled with it for a long time before I finally figured out what was wrong and managed to get the latch onto the hitch ball. There's a small rectangular bracket on the bottom side of the latching mechanism, and it holds the hex head of the bolt that you're screwing down on when the latch is closing. The latch is spring loaded, so normally that little bracket is held in place where it needs to be, but if the spring is compressed, it's possible for the little rectangular bracket to get turned 90 degrees from where it should. And if that happens, you're not gonna get a 2" ball onto that actuator -- I tried and failed for a long time. The other thing that causes some hesitation is that that latch mechanism seems like it might not be quite as corrosion proof as I would hope. I've decided to spray it with WD-40 to see if that helps to keep it in good shape.

I'm including 3 photos with this review. One shows the little rectangular bracket that holds the bolt's hex head in its correct position, another shows what the latch should look like when it's fully opened, and the third shows the beginning signs of a little corrosion after the actuator has been outside for only a couple of weeks. We did launch the boat once in salt water, but I don't think the actuator got wet when we did it, so I think the slight corrosion is just from being outside in the rain, and not from salt water exposure.

Like I said, the actuator performed extremely well, so even with the minor criticisms, I'll still give it 5 stars. And etrailer definitely gets 5 stars!


I installed this new actuator, since my old one was leaking fluid. The installation was straightforward and I had no issues bleeding the new actuator. I had an issue with the ball retainer (it was a cast part, not a stamped part like my old unit) engaging and releasing from my 2" ball. I contacted etrailer and explained the issue and Tiffany immediately sent me a replacement kit for the ball retainer free of charge! I installed the kit, and it works perfectly! Thank you Tiffany and etrailer for helping and responding so quickly and professionally to my issue!


Just hooked up and ready to road test. Can't thank them enough for getting it out and to me so I can enjoy my birthday weekend. Great Service and products

Jame A - 08/26/2017


I've had no problems with this Brake Ac tuator.


I always find there sight easy to use and their parts are quality and timely shipping.


Exact replacement of my previous couple r.




Very helpful thank you


Excellent product. Great fit.







See what our Experts say about this Titan Brake Actuator

  • Surge Brake and Electric Brake Controller Compatibility
    You will not have any compatibility issues between the brake controller and the surge actuator. The reason is because the brake controller will not be used in any way with the surge actuator. The brake output circuit will basically dead-end and not go anywhere on your trailer so you would not have to worry about it in any way. The trailer basically will do all the braking by itself between the surge actuator and the disc brakes. You would not need to remove any fuses either to prevent...
    view full answer...
  • Surge Brake Actuator Recommendation for a Boat and Trailer that Weigh 2,200 lbs
    A 6,000 lb capacity actuator like the part # T4745720 would work great with your boat and trailer that weighs a total of 2,200 lbs. This is a multi-fit coupler that should work with virtually any hitch ball size. Check out the review video I attached as well.
    view full answer...
  • Disc Brakes Do Not Appear To Be Working Properly On Tandem Boat Trailer With Surge Coupler
    It sounds like you have been testing this system quite a lot. There are several steps you can follow to trace where the problem is. First, you did not say if this is a new brake system with disc brakes and was upgraded from drum brakes. If that is the case, the actuator should have been upgraded as well. The disc brakes require a higher amount of pressure to work than the drum brakes. If you have a disc brake actuator you can move on. Next, check the calipers, and rotors for signs of...
    view full answer...
  • Can You Manually Lockout an Electric Reverse Lockout Brake Coupler
    I have a solution for you if you have drum brakes, but I spoke with my contact at Titan and he did not have a recommended way to manually lock out a trailer brake actuator that has an electric reverse lockout. The best thing you can do is get some free backing trailer brakes. These brakes allow your trailer to back up without activating the brakes, even if your trailer does not have a reverse lockout. Since I do not know what size brakes you have I attached a page that has all of the different...
    view full answer...
  • PSI Rating for Titan Zinc-Plated Brake Actuator
    Surge actuators like the Titan Zinc-Plated Brake Actuator # T4745720 mentioned in your question do not have an actual PSI rating. The disc unit will operate between 1,400 to 1,500, and with no residual back pressure. The actual PSI varies with weight of trailer, tire size, speed, braking ability of tow vehicle, and type & length of brake lines. Only electric over hydraulic actuators can be set to an exact PSI.
    view full answer...
  • Recommended Surge Brake Coupler For Disc Brakes With Electric Lockout
    The best replacement for your coupler for disc brakes is the Titan Zinc-Plated, Leverlock Brake Actuator w/ Electric Lockout - Disc - Adjustable Ball - 6,000 lbs # T4745720. This has the electric lockout built in for free backing so you need to only shift into reverse for this lockout to engage and allow you to backup without trailer brakes. It has a master cylinder designed for disc brakes that require a much higher pressure than drum brakes. The Atwood Actuator you asked about is not...
    view full answer...
  • Disc Brake Surge Coupler for a Tow Dolly
    Your best pick is the Titan Zinc-Plated Actuator, part # T4745720, which includes an electric backup lockout and compatibility with disc brakes. This kit will bolt onto your tow dolly and is rated for up to 6000 pounds. I did check into your owner's manual and it looks like the 2015 Jeep Wrangler two door variants are only rated to tow 2000 pounds, and I'd recommend using another tow vehicle if possible.
    view full answer...
  • Bleeding a Manual Actuator like the Titan Zinc-Plated Brake Actuator w/ Electric Lockout
    Yes you are exactly right. You want to bleed the Titan Zinc-Plated Brake Actuator w/ Electric Lockout part # T4745720 after you have the lines installed and it can be bled just like you do normal brakes. You can use a power bleeder or the way I prefer by hooking the safety chains together and using a lever to manually operate or push the actuator. Either way is effective just ensure you do not have any power going to the lockout solenoid so the fluid will flow freely.
    view full answer...
  • Replacement Surge Brake Actuator For Tandem Axle Boat Trailer with Disc Brakes
    Thank you for the pictures! I sent them to my contact at Titan and he said that you have the Titan Model 60 but that it was installed inside of the trailer tongue instead of on top of the tongue as designed. He mentioned that you will be able to use the Titan Zinc-Plated Brake Actuator w/ Electric Lockout # T4745720 which will work with disc brakes, is rated to 6000lbs, and will accept a 2" or 1-7/8" hitch ball. Since your current actuator was modified to fit inside of the tongue of your...
    view full answer...
    Image 1 for Image 2 for
  • A-Frame Surge Brake Coupler Recommendation
    Your question came in blank, but judging by the coupler part # T4745720 that you referenced and the picture you submitted it would appear as if you are looking for a surge brake actuator for an A-frame trailer. Which for that you would want the Titan Actuator part # T2492800. I attached a review video plus a link to a page that has all of the other a-frame surge brake couplers we carry that would fit.
    view full answer...
    Image 1 for
  • Can Trail-Rite Trailer Have Actuator Replaced with T4745700
    As long as your trailer has a 3 inch channel the Titan brake actuator part # T4745720 would work well for activating one disk brake axle. It does not have a reverse lock out solenoid so you would need to add that with the part # T4748800.
    view full answer...
  • Master Cylinder for Titan Model 60 T4745720 to Convert to Drum
    The actuator you have is a Titan Model 60 so for a replacement drum brake master cylinder you'd need the # T4395100.
    view full answer...
  • Electric Trailer Brakes Recommendation for a 1,400 lb Loaded Trailer
    For that light of a trailer I would recommend you go with electric brakes. I would be concerned that the surge brakes would not activate properly, and since there is no adjustment for them you would be in a bind. One of the advantages to electric brakes is that they are able to be fine tuned easily and efficiently. To see everything you would need to install electric brakes on your trailer check out the FAQ article I attached on that subject. For a brake controller I would strongly recommend...
    view full answer...
  • Can Titan Leverlock Brake Actuating Coupler Be Submerged
    The Titan Leverlock Brake Actuating Coupler # T4745720 can be submerged for brief periods and would be an outstanding choice for boat trailers with hydraulic disc brake systems. For drum brakes, you'd want to use part # T43397007K.
    view full answer...
  • Availability of Replacement Parts for Atwood 85736 Brake Actuator
    The 85837 master cylinder and Atwood brake actuators have all been discontinued which explains why you have been unable to find the right parts. This means that your best option is to replace the entire brake actuator. The Brake Actuator # T63FR you are referencing was something suggested as a replacement. This has a 7,500 lb capacity and manual reverse lockout. It looks like your Atwood 85736 was a 6,000 lb actuator. I recommend the Titan Zinc-Plated Brake Actuator w/ Electric Lockout...
    view full answer...
    Image 1 for
  • Solution for Needing Replacement Master Cylinder for DICO Actuator
    The DICO part number 17550 that you referenced actually matches a fixed coupler that we as Titan Weld-On Coupler part # T1755000. Most like you have a DICO model 60 actuator though. For a replacement master cylinder on your Dico Model 60 Actuator for drum brakes, you will need part # T4395100. This includes the master cylinder, gasket, orifice connector, hex bolt, lock washer, filler cap and cover. The part # T4745720 is an example of what a Model 60 actuator looks like.
    view full answer...
  • Where is Voltage Coming From When Using Actuator With Electric Lockout for Hydraulic Disc Brakes
    When using an actuator like the Titan Zinc-Plated Brake Actuator w/ Electric Lockout - Disc # T4745720, the voltage for the solenoid is coming from the reverse light circuit. It will supply voltage only when the reverse light is on when using a 5-way connector. If you need a 5-way you can use the Tow Ready 4 Pole to 5 Pole Trailer Wiring Adapter # 20036, and I have added a link to a video install for you to check out as well. I have added a link to a help article on trailer wiring you...
    view full answer...
  • Parts Needed to Upgrade Drum Brakes on Tandem Axle Boat Trailer To Disc Brakes
    Assuming that you choose the correct rotor that matches your wheel bearing numbers and wheel bolt pattern, you would need to choose a hydraulic actuator that is appropriate for disc brakes like the Titan # T4745720, Due to the fact that the calipers move, you would need to provide a brake like kit that has a flexible connection at the caliper like part # 9579-2 which will work with disc brakes. We actually have a FAQ article that explains what is needed to upgrade your brakes. To see...
    view full answer...
  • Titan Model 60 Actuator with Electric Reverse Lockout for Drum Brakes
    We have the same coupler that works with drum brakes. It is Titan model 60, # T43397007K. For the reverse lockout feature you would simply install the Reverse Lockout Solenoid # T4748800 which will connect to the reverse light power function.
    view full answer...
  • Recommended Replacement Surge Brake Actuator and Disc Brakes for Boat Trailer
    Is the trailer's GVWR 5,200 pounds or is that the axle capacity? If it's the axle capacity and a tandem axle trailer I recommend the Titan brake actuator, part # T4750820, that's rated for up to 12,500 pounds. If the trailer's maximum weight capacity is 5,200 pounds then instead I suggest part # T4745720. Both are zinc-plated to preven corrosion and include an electric lockout. If your axle isn't rated for 5,200 pounds let me know so I recommend the correct disc brakes. If they are...
    view full answer...
  • Replacement Surge Brake Actuator Recommendations for Atwood 82541
    I recommend either using the Demco 6K # DM8605101 if you want a standard actuator that fits a 2" hitch ball or the Titan 6K # T4745720 if you like the option of the coupler fitting with either a 1-7/8", 2", or 50 mm hitch ball. Both options have the same weight rating, fit on a 3" wide channel tongue, and have mounting bolts holes with 3" on center distances between them. I'm not exactly sure what the mounting bolt hole locations were for your Atwood 82541 actuator so if the bolt hole locations...
    view full answer...
  • Disc Brake Actuator with Electric Lockout for Magic Tilt Trailer
    For your Magic-Tilt tandem axle boat trailer with disc brakes and a straight tongue I recommend Titan Disc Brake Actuator Coupler # T4745720. This 6K bolt-on coupler has an electric lockout and I like it because it features a multi-ball fit so it will work with 1-7/8-inch, 2-inch and 2-5/16-inch hitch balls. You can refer to the video for more information. If you use only a 2-inch hitch ball you could instead use Demco 7K Coupler # DM62VR which also has the electric lockout and uses bolt-on...
    view full answer...
  • Recommended Replacement Actuator for Atwood 85778
    When it comes to options available to replace your Atwood 85778 Surge Actuator, I recommend using the Titan Zinc-Plated Brake Actuator w/ Electric Lockout - Disc - Multi-Fit Ball - Bolt On - 6,000 lbs # T4745720, which has all the same features as the Demco # DM62VR but at a little better price point. This actuator is designed for working with disc brakes and will work with trailers up to 7000-lbs. The only other option available for disc brakes is the Titan Zinc-Plated Brake Actuator...
    view full answer...
  • Suitable Hydraulic Coupler for Kodiak Disc Brake Kit Part # K2R526S
    The Titan Brake Actuator with Electric Lock Out, part # T4745720 would work well with the Kodiak Disk Brake Kit you referenced. The actuator, which carries a 6000 lb capacity, features an adjustable coupler which accommodates 1-7/8, 2 inch and 50mm trailer balls. The included electric reverse lock out solenoid is protected from damage by an included cover.
    view full answer...

< Previous

Do you have a question about this Brake Actuator?

  • Why

    At we guarantee:
  • Real product know-how.

    We make sure that the products we sell are what we say they are, and that they work the way they are supposed to work. Get real advice from a real person who has the knowledge and expertise needed to solve your problem.
  • Most detailed, accurate brake actuator information available.

    Because we take providing accurate product information seriously, we take our own detailed product photos, demo videos and installation videos, as well as verify measurements, instructions, and vehicle fit information.
  • Installations, made easy.

    We love helping people and have the most highly-trained customer service, hands-on experience, step by step videos and installation instructions.
  • Fast shipping.

    Your order is automatically routed to get out of our warehouse and to your door as quickly as possible. Receive free shipping on orders over $99.
  • Personalized service for life.

    We provide one-on-one, personalized service from the ordering process through the life of your product.
  • Trusted since 1946.

    We've been serving customers since our parts store first opened in 1946 and continue to be recognized by our customers, our vendors and third parties for exceptional service.
  • Returns Policy

    Need to return an item? No problem. Please read our Returns Policy for more information.

Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee Adam R
Expert Research:
Adam R
Employee Jeff D
Installed by:
Jeff D
Employee Adele M
Updated by:
Adele M
Employee Wilson B
Updated by:
Wilson B
Employee Hannah L
Updated by:
Hannah L

At 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.