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  1. Brake Actuator
  2. Dexter
  3. Surge Brake Actuator
  4. Disc Brakes
  5. 2 Inch Ball Coupler
  6. 7500 lbs GTW
Dexter DX7.5 Drop-N-Go Brake Actuator - Disc Brakes - 2" Ball - Zinc Plated - 7,500 lbs

Dexter DX7.5 Drop-N-Go Brake Actuator - Disc Brakes - 2" Ball - Zinc Plated - 7,500 lbs

Item # 099-175-20
Our Price: $381.09
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Brake Actuator
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Shipping Weight: 18 lbs
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Dexter Surge Brake Actuator - 099-175-20
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Use this corrosion-resistant actuator to synchronize your trailer brakes with your tow-vehicle brakes. Drop-N-Go auto-latch coupler automatically locks your coupler in place on 2" hitch balls. Designed for hydraulic disc brake applications. 1-800-940-8924 to order Dexter brake actuator part number 099-175-20 or order online at Free expert support on all Dexter products. Great prices and Fastest Shipping for Dexter DX7.5 Drop-N-Go Brake Actuator - Disc Brakes - 2" Ball - Zinc Plated - 7,500 lbs. Brake Actuator reviews from real customers.
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  • Reviews (41)
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Dexter Brake Actuator - 099-175-20

  • Surge Brake Actuator
  • Disc Brakes
  • 2 Inch Ball Coupler
  • 7500 lbs GTW
  • Bolt-On
  • Electric Lockout
  • Straight Tongue Coupler
  • Dexter

Use this corrosion-resistant actuator to synchronize your trailer brakes with your tow-vehicle brakes. Drop-N-Go auto-latch coupler automatically locks your coupler in place on 2" hitch balls. Designed for hydraulic disc brake applications.


  • Hydraulic actuator synchronizes trailer brakes with tow-vehicle brakes
  • Drop-N-Go coupler mechanism ensures easy, secure connection
    • Automatically seats around and latches onto the hitch ball, even when in closed position
    • Included pin secures ball in coupler socket - coupler lock sold separately
    • Low-profile handle is easy to pull up for release
  • Aluminum master cylinder is better at reducing corrosion than cast steel master cylinders
  • Rollers with grease fittings are long-lasting and provide smooth operation
  • Breakaway kit included
  • Zinc plating is corrosion resistant
  • Durable steel construction
  • Bolt-on installation
    • Bolt holes 3" apart on center
  • Made in the USA


  • Application: hydraulic disc brakes
  • Ball size: 2"
  • Mounting: 3" wide channel tongue
  • Capacity: 7,500 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.

099-175-20 Dexter Drop and Go Brake Actuator - Disc brakes

Replaces Titan Model 60 Leverlock Trailer Brake Actuator for Disc Brakes - T47154107K, T47154207K, T47154007K

Installation Details 099-175-20 Installation instructions

Customer Satisfaction Score:

Customer Reviews

Dexter DX7.5 Drop-N-Go Brake Actuator - Disc Brakes - 2" Ball - Zinc Plated - 7,500 lbs - 099-175-20

Average Customer Rating:  4.9 out of 5 stars   (41 Customer Reviews)

Use this corrosion-resistant actuator to synchronize your trailer brakes with your tow-vehicle brakes. Drop-N-Go auto-latch coupler automatically locks your coupler in place on 2" hitch balls. Designed for hydraulic disc brake applications.


I dove into this job of replacing my entire rusted out disc brake system on my double axle boat trailer having never done it before. Between the variety of part choices and accurate descriptions coupled with excellent phone service and on site videos, I was able to rebuild my trailer brakes system and suspension in total. I compared prices with the trailer manufacturer and found that etrailer either beat the price or matched it but I chose to give my business to etrailer because of the service! I do recommend this company and will use again anytime!


I installed this as part of a disk brake retrofit to a tandem axle boat trailer that didn’t come with brakes. It was an easy swap from my factory coupler and connected fine to the flexible brake line kit. How to bleed the brakes wasn’t obvious from the instructions and YouTube videos are mostly out of date, but all it took was a long handled flat screwdriver to action the pump and apply pressure. The drop and go system is easy to use. I wish this model had a manual reverse solenoid lockout but the electric lockout has been working fine.


Anna was great at helping me confirm what I needed to order. I installed the Kodiak 10” disc brake kit, new lines and Dexter actuator with no trouble. I got rid of my rusty drum brakes that were a hassle to clean and maintain in salt water. Shipping was fast and my order was complete. I’d definitely recommend to friends!!


I changed the brakes on my 1995 boat trailer from drum to disc. I was able to figure out what to order on the etrailer web site. The whole project was relatively easy. I just had to remove the old parts and bolt on the new ones. The new trailer hitch actuator is much easier to used than my old one.


Your service was excellent and your price was very good.




The hitch is great. Disc brakes vs the drums I had before make noticeably more stopping power. My one regret is that while there is a backing lockout of the surge brake via a solenoid valve, for high mountain trailering, the surge brake stays applied when you’re descending in low gear. I smoked my brakes coming down from 5,500 ft last week, expelling a decent amount of high temp red bearing grease. I guess if steep mountain roads are the norm, maybe an electric brake overhaul would have been better.


Amy was a great help got me what I needed right away and was shipped and received quickly thanks so much


Good service as well as fast shipping. Will be repeat customer.


Excellent product with good installation instructions


Excellent customer service. Great experience. I will definitely use them in the future.


Works great! I wish I would have talked to a representative first. Bolt pattern didn’t match up with the old actuator, so I had to drill new holes. With my neighbors help got ur done in a couple hours. My fault. Thanks to etrailer for quick delivery as I needed to pull my boat out of the slip I was renting.


I have been ordering from 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.


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


Fast ship and great product.


Works well but the younger bounces a bi t.


Great selection of products with detailed product descriptions and very fast delivery. The information on the site was very helpful in identifying the replacement brake actuator that I needed for my 17 year old trailer. Installed in 20 minutes!


I have not installed this yet but everything appears to be good.


Easy install works well.


Well made and easy to install


Great hitch fair price fit prefect


Looks good


Outstanding service!


Actuator works great. Very smooth stop. Well built.


Bailey was a great help and got me exactly what I needed!!

Show More Reviews

See what our Experts say about this Dexter Brake Actuator

  • 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 # 099-175-20. This coupler...
    view full answer...
  • Converting Trailer with Adjustable Ball Titan Model 60 Actuator to Alternative Style
    Since there isn't a way to convert your adjustable ball style of Titan Model 60 actuator to a leverlock style you'll need to remove the entire coupler and install the Dexter Drop-N-Go part # 099-175-20 if you have disc brakes or part # 099-175-00 if you have drum instead. This is the upgraded replacement for the Titan Leverlock. Dexter bought Titan and this is the new style I think you'll really like.
    view full answer...
  • What to do Now That Atwood Replacement Master Cylinder 85739 is no Longer Available
    You're certainly not the first person to ask about the Atwood 85739 master cylinder but those replacement parts are simply no longer available which means your best option truly is to replace your actuator. I completely understand this isn't the news you were seeking but it truly is the best option at this point. An outstanding manufacturer of actuators is Titan and they have a number of possibilities; I recommend checking out the Dexter DX7.5 Drop-N-Go Brake Actuator - Disc Brakes -...
    view full answer...
  • Recommended Surge Brake Actuator For 2006 Ranger Trail Trailer
    I would be happy to make a recommendation for a replacement brake actuator for your 2006 Ranger Trailer Trailer, but I will need to know if your trailer has hydraulic disc or drum brakes. If your trailer has hydraulic disc brakes the Dexter DX7.5 Drop-N-Go Brake Actuator - Disc Brakes - 2" Ball - Zinc Plated - 7,500 lbs # 099-175-20 is a great choice that has is zinc plated for superior corrosion resistance, and will bolt on to trailer tongues that are 3" wide. If you have drum brakes...
    view full answer...
  • Replacement Brake Actuator for Titan Ultra 70 Surge Brake
    A great replacement would be the Dexter DX7.5 Drop-N-Go Brake Actuator # 099-175-20 for disc brakes. If you have drum brakes the Dexter DX7.5 Drop-N-Go Brake Actuator # 099-175-00. There are currently no replacement master cylinders available for your actuator.
    view full answer...
  • Recommended Replacement for Model 70LP Surge Brake Actuator
    While we don't have replacement parts for a Model 70LP actuator, we do have a great replacement for it. Like the 70LP, these actuators are a fit for a 2" hitch ball, but they just have a slightly larger capacity at 7,500 lbs. You didn't mention whether you had drum or disc brakes so I'll give the options for both: - Drum Brakes: Dexter DX7.5 Drop-N-Go Brake Actuator - Drum Brakes # 099-175-00 - Disc Brakes: Dexter DX7.5 Drop-N-Go Brake Actuator - Disc Brakes # 099-175-20 I've added links...
    view full answer...
  • Difference Between Hydraulic Brake Coupler with Lockout and Without Lockout
    What a lockout on a hydraulic brake coupler does is prevent the brakes from applying when you back the trailer. An electric lock out is tied into the reverse lamp circuit on the vehicle so that when the vehicle is shifted into reverse the solenoid in the coupler is activated which prevents the trailer brakes from applying. If your boat trailer had free-backing brakes, you won't need a lockout because after being pushed a foot or so the brake assemblies disengage. For a 7500 lb hydraulic...
    view full answer...
  • 2005 Ranger Trail Boat Trailer Replacement Hydraulic Brake Coupler
    Was there any manufacturer info on the existing coupler? Any part numbers? Unfortunately, there isn't an existing database that allows me to look up which hydraulic coupler was originally used on your 2005 Ranger Trail boat trailer. This being said, the Dexter Axle DX7.5 Drop-N-Go actuator would work well if you have a 3 inch wide pole tongue and need a coupler compatible with a 2 inch ball. For disc brakes, use the # 099-175-20, or # 099-175-00 for drum brakes.
    view full answer...
  • Replacement Actuator for Trailer with Model 70 Disc Brake Kit
    For a disc brake model with an electric reverse lockout solenoid you can use # 099-175-20. This would be a great replacement solution for the model 70 you have on your trailer.
    view full answer...
    Image 1 for
  • Replacement 7,000 lb Surge Brake Actuator for Drum or Disc Brakes
    We definitely have surge brake actuators that can work, but the ones we carry are mounted on top of your trailer's channel tongue and you will need to drill new holes in order to mount them. Additionally, please note that these actuators are each designed to fit 3" wide channel tongues, so to ensure the proper fit you are going to want to measure your trailer tongue. Dexter actuators are premium quality which is why I highly recommend them, and the correct 7,000 lb actuator that works...
    view full answer...
  • Replacement Solution for Atwood 82542 Actuator on Boat Trailer
    Atwood stopped making actuators a while back which is why you aren't able to find a replacement or any replacement parts. So for a solution to replace what you have the Dexter DX7.5 part # 099-175-00 would be a great solution if you have drum brakes or the part # 099-175-20 for disc brakes. I really like how easy the coupler of these actuators work as basically you can just drop them onto the ball and they latch themselves.
    view full answer...
  • Replacement For TDE-LP750 Trailer Actuator
    We can get you a good replacement, though there is actually no longer a TDE brand. But that actuator is simply a bolt-on, 7,500 lb actuator that couples to a 2" hitch ball, and per the owner's manual does not have a lockout (so it is for free-backing brakes). The replacement you can use is from Dexter, and the right one will depend on if you have drum brakes or disc brakes: - Drum: Dexter DX7.5 Drop-N-Go Brake Actuator # 099-175-00 - Disc: Dexter DX7.5 Drop-N-Go Brake Actuator # 099-175-20
    view full answer...
  • Solution for Needing Replacement Tie Down LP70 Actuator
    While we don't have replacement parts for a Model LP70 actuator, we do have a great replacement solutions for it. Like the 70LP, these actuators are a fit for a 2" hitch ball, but they just have a slightly larger capacity at 7,500 lbs. You didn't mention whether you had drum or disc brakes so I'll give the options for both Disc Brakes: Dexter DX7.5 Drop-N-Go Brake Actuator - Disc Brakes # 099-175-20
    view full answer...
  • Replacement Surge Brake Actuator For TDE Model LP 7000 On a 2013 Four Winns Boat Trailer
    I recommend replacing your Tie Down Engineering LP 7000 brake actuator with either the Dexter DX7.5 Drop-N-Go Brake Actuator for Disc # 099-175-20 or Drum # 099-175-00 brakes. This actuator has the same capacity at 7,500lbs and uses a 2" hitch ball.
    view full answer...
  • Recommendation for a 6k Disc Brake Trailer Actuator with Electric Reverse Lockout
    Take a look at Dexter actuator # 099-175-20. 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...
  • 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 this...
    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 Dexter Zinc-Plated, Leverlock Brake Actuator w/ Lockout Shield, part # 099-175-20, you referenced is used for a straight tongue trailer up to 7,500 lb capacity. This is a bolt-on installation and will mount on trailer tongues 3...
    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 then...
    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...
  • Troubleshooting Corroded Master Cylinder on Titan Actuator 60 Model
    I spoke with my contact at Dexter/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...
    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 # 099-175-20. 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...
  • 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 a...
    view full answer...
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  • 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 Dexter actuator part # 099-175-20 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...
  • Tie Down Model 70 Surge Brake Actuator Replacement Recommendation
    For a disc brake model with an electric reverse lockout solenoid you can use # 099-175-20.
    view full answer...

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Info for this part was:

Employee Mike L
Expert Research:
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Employee Jameson C
Expert Research:
Jameson C
Employee Lindsey S
Edited by:
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Employee Jeff D
Installed by:
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Updated by:
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