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  5. 1-7/8 Inch Ball Coupler
  6. 2 Inch Ball Coupler
Titan Zinc-Plated, Leverlock Brake Actuator w/ Lockout Shield - Disc - Adjustable Ball - 7,000 lbs

Titan Zinc-Plated, Leverlock Brake Actuator w/ Lockout Shield - Disc - Adjustable Ball - 7,000 lbs

Item # T47154107K
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Titan Zinc-Plated, Leverlock Brake Actuator w/ Lockout Shield - Disc - Adjustable Ball - 7,000 lbs 7000 lbs GTW T47154107K
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Secure Leverlock system on this corrosion-resistant, bolt-on actuator ensures that the coupler locks in place on hitch balls measuring 1-7/8", 2" and 50 mm. Built-in cover shields solenoid valve (sold separately). Call 800-298-8924 to order Titan brake actuator part number T47154107K or order online at etrailer.com. Free expert support on all Titan products. Guaranteed Lowest Price and Fastest Shipping for Titan Zinc-Plated, Leverlock Brake Actuator w/ Lockout Shield - Disc - Adjustable Ball - 7,000 lbs. Brake Actuator reviews from real customers.
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  • Reviews (3)
  • Q & A (70)
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Titan Brake Actuator - T47154107K

  • Surge Brake Actuator
  • Disc Brakes
  • 1-7/8 Inch Ball Coupler
  • 2 Inch Ball Coupler
  • 7000 lbs GTW
  • Titan
  • Bolt-On
  • No Lockout
  • Straight Tongue Coupler

Secure Leverlock system on this corrosion-resistant, bolt-on actuator ensures that the coupler locks in place on hitch balls measuring 1-7/8", 2" and 50 mm. Built-in cover shields solenoid valve (sold separately).


  • Hydraulic actuator synchronizes trailer brakes with tow-vehicle brakes
  • Leverlock coupler mechanism ensures easy, secure connection
    • Adjustable to fit 1-7/8", 2" and 50-mm balls
    • Trigger latch is easy to use
  • Built-in shield for electric-lockout applications (solenoid valve sold separately)
  • Breakaway kit included
  • Zinc plating is corrosion resistant
  • Durable steel construction
  • Bolt-on installation
    • Bolt holes 3" apart on center
  • Made in USA


  • Application: disc brakes
  • Ball size: 1-7/8", 2" or 50 mm
    • Some adjustment may be required
  • Mounting: 3" wide channel tongue
  • Capacity: 7,000 lbs
  • Maximum tongue weight: 700 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.

47154107K Titan Model 60 ZX7000 Leverlock Actuator for Disc Brakes - Solenoid Cover - Zinc

Replaces Ttitan 4715410

Customer Reviews

Titan Zinc-Plated, Leverlock Brake Actuator w/ Lockout Shield - Disc - Adjustable Ball - 7,000 lbs - T47154107K

Average Customer Rating:  5.0 out of 5 stars   (3 Customer Reviews)

Secure Leverlock system on this corrosion-resistant, bolt-on actuator ensures that the coupler locks in place on hitch balls measuring 1-7/8", 2" and 50 mm. Built-in cover shields solenoid valve (sold separately).

- T47154107K

Actuator is quality product. I was replacing a Tie Down 70E actuator that was 10 years old ( master cylinder and backup solenoid failed due to rust sediment buildup ?) Be aware that the actuator does not come with mounting hardware so save yours from old unit , also does not come with instructions-download from web. The only noticeable difference between the newer and the old unit was the backup sensitivity. The old unit needed the solenoid energized with just the trailer -the new unit didn’t need the solenoid energized with trailer and boat unless you were going up an incline(even with adjustment of the bolts joining the two pieces) Overall very satisfied-as a side note both Tie Down and Titan were bought by Dexter Axle 636937

- T47154107K

I have been ordering from etrailer.com for years and have not been disappointed. Their prices are great, they communicate the order status very well, and ship the products quickly. I have been having ongoing issues with my trailer brake pressure not relieving, thus applying the brakes continuously. This order was for a new actuator which I believe will correct the problem. I just installed the actuator and it fit as expected. 549905

- T47154107K

Product arrived just as described and packaged well! 726915


Ask the Experts about this Titan Brake Actuator

  • How to Bleed Brake Lines with Titan Model 60 Hydraulic Brake Actuator Without Electric Lockout
    The Titan Brake Actuator part # T47154107K has a master cylinder with a fitting at the end. The fitting is a 3/16 inverted flare where the brake lines connect to. You do not need an extra fitting when you use the actuator. If you ever need to replace the fitting, it is part # T4750300. I recommend Kodiak Brake Line for Single Axle trailers part # 18SI-BLKIT. The flexible line of the Kodiak kit has a thread size of 3/8"-24 and fits a 3/16" fitting like the one of the actuator. If you...
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  • Replacement Coupler Needed for Tie Down Engineering 66 Model Actuator
    I was able to find that your Tie Down Engineering 66 Model actuator fits trailer tongues that are 3"x3", 3"x4", and 3"x5". It is only compatible with 2" hitch balls but I was unable to find the mounting hole measurements. We do have a wide variety of actuators like the Titan # T47154107K or standard couplers like part # DM12925. Since you say straight coupler I am not sure if you are looking for an actuator that doesn't have a drop or if you are looking for a standard coupler. If you...
    view full answer...
  • Solution for Needing Replacement Shock for Atwood Actuator
    Since we can't get the Atwood replacement shock anymore that you mentioned your best option would be to replace the actuator with a more reliable one like the Demco # 8605001 for if you have a drum brake setup or part # T47154107K for if you have a disc setup.
    view full answer...
  • Troubleshooting Bleeding Brakes with Vacuum Brake Bleeder
    You shouldn't be experiencing issues with bleeding the brakes with a Vacuum Brake Bleeder, like part # PTW87030, after installing the Brake Actuator with Electric Lockout # T47154107K. It sounds like you might have a clog somewhere in your brake line. What you will want to do is find the next closest fitting from the brake on the trailer and try bleeding the brake line from there. If it bleeds just fine then you know that you need to replace the brake line section that you just bypassed....
    view full answer...
  • Tie Down Model 70 Surge Brake Actuator Replacement Recommendation
    For a disc brake model with an electric reverse lockout solenoid you can use # T47154107K.
    view full answer...
  • Actuator Replacement Recommendation for Tie Down Model 70
    For a disc brake model with an electric reverse lockout solenoid you can use # T47154107K. This would be a great replacement solution.
    view full answer...
  • Can Emergency Lever on Actuator be Used to Bleed Surge Brakes
    Yes, you can use the emergency breakaway lever on a surge brake actuator to bleed your brakes. I have attached a link to one of our videos which shows how to bleed surge brakes that you can reference.
    view full answer...
  • Surge Brake Actuator Replacement Recommendation for Atwood Surge Coupler
    The Atwood surge brake actuators are the ones we get the most feedback on with issues. We have the Titan actuator part # T47154107K which will work great as a replacement. This actuator is designed for disc brakes like you need, has an electric reverse lockout and can fit all ball sizes as well. Titan actuators are very reliable as well.
    view full answer...
  • How to Choose Correct Hydraulic Disc Brake Actuator and Hubs for a Boat Trailer
    When it comes to the best hydraulic actuator one of our most popular options is the Brake Actuator with Electric Lockout # T47154107K from Titan which has a weight capacity of 7,000 lbs. It is compatible with 1-7/8", 2" and 50-mm balls and fits 3" wide channel tongues. To determine what is best for your application you can filter through the linked selection of disc brake actuators and choose the hitch ball size you will be using as well as the weight capacity needed and what type of mounting...
    view full answer...
  • Is a 7-Way Round Connector Used to Activate Surge Brakes on Boat Trailer
    The surge brakes on your boat trailer operate completely independent from the trailer wiring/connector so there isn't a pin on the 7-way that activates the surge brakes. The wiring that your mechanic was speaking of is that used for an actuator with a reverse lockout solenoid, like part # T47154107K. In this case you would need to run a wire from the reverse light circuit to the solenoid so that you can reverse your trailer without the actuator activating the brakes of the trailer.
    view full answer...
  • How Do You Choose The Correct Trailer Coupler
    An actuator weight capacity should be used to match the weight capacity of the trailer it is going to be used on, and the type tongue it is to be attached to. I have attached a helpful article that explains trailer couplers and how they are typically sized. The Titan Zinc-Plated, Leverlock Brake Actuator w/ Lockout Shield, part # T47154107K, you referenced is used for a straight tongue trailer up to 7,000 lb capacity. This is a bolt-on installation and will mount on trailer tongues...
    view full answer...
  • Brake Kit and Actuator Needed for a Tandem Axle Boat Trailer
    There are a few things we will need to know before selecting the correct brake kit and actuator for your tandem axle boat trailer. We will first need to know what type of brakes you are choosing and the gross trailer weight of your trailer before selecting an actuator. The first item to check when choosing brakes is to make sure there is a brake mounting flange attached to the axle. If it does not have a brake mounting flange, you would first need to have one welded to the axles by...
    view full answer...
  • Where Do Wires of Reverse Light Solenoid on Titan Actuator Wire
    It doesn't matter which wire is used for the power circuit and which is ground. Either wire will do fine. Run one of the wires to your reverse light circuit and then ground the other circuit and you will be good.
    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...
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  • Troubleshooting Corroded Master Cylinder on Titan Actuator 60 Model
    I spoke with my contact at Titan and he said he doubts your actuator could have any serious rust build up in a month's time, certainly not enough to clog anything. He recommended cleaning the cylinder with an alcohol solution and paint brush making sure you slosh the alcohol around. It is fairly easy to remove the cylinder. Just remove the back cover, detach the line and loosen the four bolts. Most likely the problem is that the coupler is not fully extended. If it is not fully extended...
    view full answer...
  • Titan Trailer Disc Brakes Lock Up While Towing and Will Not Release
    It sounds like you are getting air in the system somewhere which could be from a hose with dry rot or a compression fitting especially since the trailer has not seen too much activity. To check for leaks you can fill the reservoir and manually actuate the brakes and look for leaks. Repair or replacing leaking parts, bleed the system, and see if that was the issue. It is also possible that the break away cable is partially engaged. If it is, it will need to be reset and the way you do...
    view full answer...
  • Do Side Holes Need to be Drilled to Install Titan Zinc-Plated, Leverlock Brake Actuator
    Yes, to install the Titan Zinc-Plated, Leverlock Brake Actuator # T47154107K you will need to drill holes that will line up with the mounting holes on the actuator.
    view full answer...
  • Recommended Trailer Coupler With Breakaway Kit Replacement
    I spoke with my contact at Fulton and they told me that the A50 coupler was for a surge brake 5,000 lb system and is no longer available. They said the parts for that are no longer available either. The coupler you will need depends on the kind of brakes you have on your trailer, either disc or drum. If you install a disc brake coupler on a trailer with drum brakes, you run the risk of having the brakes locking up. If you have disc brakes I recommend part # T47154107K. This coupler...
    view full answer...
  • Should Disc Trailer Brakes be Added to Front or Rear Axle on a Boat Trailer
    You can install disc brakes on just one axle. Install them on the rear axle which will prevent the back of the trailer from raising up if braking hard. I have included a link to the disk brake kits we have. To make sure one of these kits will fit, or to piece together a kit that will fit, I would need to know the inner and outer bearing numbers. I have included a link to a help article on adding disc brakes to a trailer that should also be helpful.
    view full answer...
  • Disc Brake Actuator for a Trailer with a 2-1/2 Inch Wide Tongue
    You can use # T47154107K by using spacers to take up the gap between the trailer tongue and the coupler. The spacers will need to be placed on either side of the tongue and will need to have the same dimensions to ensure the coupler is installed evenly. Spacers will have to be fabricated and obtained locally.
    view full answer...
  • Recommendation for a 6k Disc Brake Trailer Actuator with Electric Reverse Lockout
    Take a look at Titan actuator # T47154107K. It couples to either a 1-7/8", 2", or 50mm ball, has a 7,000 pound capacity, and fits a 3 inch wide tongue. It also features an electric lock out. As long as the trailer is not rated higher than 7,000 pounds, this actuator will work with 4 disc brake assemblies.
    view full answer...
  • How Long Should Trailer Breakaway Cable be That Attaches to Vehicle Hitch
    This is a really good question that we've debated here a few times but the final word was determined to be that you want the breakaway cable to attach to the vehicle hitch/frame and should be longer than the safety chains according to RVIA Recreational Vehicle Industry Association. This will activate the brakes in the event you lose the trailer connection and the safety chains fail. Most of the ones we carry are between 4 and 6 feet long.
    view full answer...
  • What Voltage is Needed for the Electric Reverse Lockout Solenoid on a Titan Actuator
    The reverse lockout solenoid on the Titan actuator # T47154107K is rated for 12 volts. Nine volts might do the trick but 12 volts is ideal. If you cannot get 12 volts at the reverse lights or 7-Way trailer connector then you may be able to use a fuse tap at the reverse light circuit fuse under the hood. There will be some slight movement but if the unit is banging around a lot then it could indicate worn parts.
    view full answer...
  • How To Wire For Lockout On Titan Coupler To Vehicle With 7-Way And Trailer With 4-Flat
    To connect the electric lockout on the Titan Trailer Coupler, # T47154107K, to your truck you will need to make sure the center pole of the 7-Way connector on your vehicle is wired to the reverse light circuit. If it is not wired to the reverse light circuit you will need to splice into the reverse light circuit behind the vehicles taillights and wire to the center pole inside your 7-Way vehicle connector. Once the 7-Way connector has the reverse light circuit at the center pole...
    view full answer...
  • Will Titan Model 60 Actuator Fit in Place of a Tie Down Model 70E Actuator
    If your trailer tongue is 3 inches wide and the mounting holes for your existing Tie Down actuator are 3 inches apart on center then Titan Zinc-Plated, Leverlock Brake Actuator, Item # T47154107K will fit. I have linked a video review of this actuator for you.
    view full answer...
  • Trailer Brakes Stayed Locked Up unless Trailer is Disconnected
    It sounds like you have electric trailer brakes and there is a short circuit that is causing the magnets to stay energized. When you disconnect the trailer from the tow vehicle no electricity is getting back to the magnets so the brakes release. The most common cause of this situation is a dirty or corroded trailer connector. You will want to check the vehicle and trailer side connectors and make sure they are clean and corrosion free inside and out. If the issue continues to happen...
    view full answer...
  • Why Arent Surge Brake Actuators Adjustable
    I can probably track down some instructions for the Titan part # T47154107K but if your main concern is adjustability I can answer that right now and say no there is no adjustability. What you get is what you get with surge brake systems, but the good news is braking is somewhat proportional as the harder the trailer presses (heavier the trailer and/or harder braking) the harder the trailer brakes will apply. So you end up with pretty smooth braking but it's just not adjustable.
    view full answer...
  • 2007 Ranger Trail Replacement Actuator for Tie Down Model 70
    Since we don't have a replacement master cylinder for your actuator you'd have to go with a new actuator. For a 7k disc brake model with an electric reverse lockout solenoid you can use # T47154107K. This would be a great replacement solution.
    view full answer...
  • Length of the Titan Surge Brake Actuator T47154107K
    Typically dimensions of surge brake actuators aren't requested so we don't list them but I was able to determine that the overall length of the # T47154107K is 17 inches. I attached a picture that shows this and a couple other dimensions.
    view full answer...

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Info for this part was:

Written by:
Lindsey S
Expert Research:
Michael H
Expert Research:
Jameson C
Expert Research:
John H
Expert Research:
Jeffrey L
Installed by:
Jeff D
Updated by:
Sarah W
Updated by:
Alexander C
Updated by:
Hannah L

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