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  1. Brake Actuator
  2. Dexter
  3. Surge Brake Actuator
  4. Drum Brakes
  5. 1-7/8 Inch Ball Coupler
  6. 2 Inch Ball Coupler
Dexter Zinc-Plated Brake Actuator - Drum - Multi-Fit Ball - Bolt On - 7,000 lbs

Dexter Zinc-Plated Brake Actuator - Drum - Multi-Fit Ball - Bolt On - 7,000 lbs

Item # T43397007K
Our Price: $324.94
Brake Actuator
This item qualifies for Free Shipping
Shipping Weight: 20 lbs
In Stock
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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. Designed for use with drum trailer brakes. 1-800-940-8924 to order Dexter brake actuator part number T43397007K or order online at Free expert support on all Dexter products. Great prices and Fastest Shipping for Dexter Zinc-Plated Brake Actuator - Drum - Multi-Fit Ball - Bolt On - 7,000 lbs. Brake Actuator reviews from real customers.
  • All Info
  • Reviews (70)
  • Q & A (0)
  • Photos
  • Why etrailer?

Dexter Brake Actuator - T43397007K

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

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. Designed for use with drum trailer brakes.


  • Hydraulic actuator synchronizes trailer brakes with tow-vehicle brakes
  • Easily adjustable to fit 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
    • Bolt holes 3" apart on center
    • Mounting hardware not included
  • Made in USA


  • Application: hydraulic drum 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.

068-139-01 Dexter Axle Model 60 ZX7000 Multi-Fit Actuator for Drum Brakes - Zinc

Replaces Titan T4339700 and 43397007K

Customer Satisfaction Score:

Customer Reviews

Dexter Zinc-Plated Brake Actuator - Drum - Multi-Fit Ball - Bolt On - 7,000 lbs - T43397007K

Average Customer Rating:  4.5 out of 5 stars   (70 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. Designed for use with drum trailer brakes.


Not a fan because of the screw down and up for ball attachment. Unit Itself works great.


Direct Bolt on, better than welding. Surge Brake Line connected just fine. Bled Brakes. Test drive was successful. What more could you ask for. I chose the hand tightening knob over the Lever because it was more assuring to me that it was tight on the ball and the locking mechanism has never failed. I have used Titan surge actuators for 40 years. I am using this actuator on a 4,000 lbs. boat and trailer. On my way to the lake!


Very easy to install, I took the old unit off and had the new one installed in less than an hour. I hooked the trailer to my truck and primed the Hydraulic cylinder before I attached the brake line. No problems.


Seems to be what I needed to have replaced, was easy to install. Only problem, NO instructions. I did find video suggestions online.


Arrived corroded and not functioning properly. I had to disassemble and clean the rust that was on the inside of the fluid reservoir and the piston. I would have sent back but I needed it at the time. The piston was frozen. It took some time for me to figure this out.


The part was a perfect fit and the service was prompt and friendly. I had a question and the person on live chat was friendly and helpful. I would definitely use etrailer again


The master cylinder leaks around the ca p.

You mentioned that the master cylinder is leaking around the cap. I suggest replacing the cap and we do have it available. It is part # T4480701
Replacement Master Cylinder Filler Cap for Dexter Model 60 and Aero 7500 Actuators
on our site.
-- Etrailer Expert Jenny N - 05/02/2022


Perfect replacement. Easy to install.


DO NOT...I REPEAT DO NOT BUY THIS PIECE OF JUNK (I have stronger words but you get the idea) You get this piece of junk and ZERO info. I'm going to stop reviewing now before I go off the deep end!


Looks great ! But a Little high priced


Fast and correct part.


Bolted right onto the trailer. No instructions and the link on the web sit didn't work but what do you need for two bolts. Wouldn't have minded some guidance with bleeding the brakes but got it done anyway.
Greatly improved the towing of my boat trailer!
Good price. Shipping good. What else would you want!?

Well, it worked great till I sold the boat last October. Shocked about the follow-up! Wow
Paul P - 06/07/2016


Great product works great on my boat trailer


Perfect replacement for my existing brake. I'm using this brake coupled with the Titan actuator W/reverse lockout solenoid since there is no manual lockout and I don't have free backing brakes.


It mounted in the same holes my old unit was removed from great fit.


Ordered for item repair at our plant. Ordering was easy and shipping was good.


Excellent product. This was almost an exact replacement for the original one that was on my boat trailer. I had the boat out about once a week this summer and the actuator worked perfectly. Braking was smooth and it locks down easily on the hitch ball. I highly recommend this actuator.


This product perfectly replaced my tongue master cylinder on my 1992 Capri boat trailer. It bolted right up and the brake line thread was the same. It was super easy. It is a huge improvement!


Fast delivery & looks like the right brake actuator will install later this spring boat in storage. Very good service will recommend my friends to your company. Thanks for your help David Castle

Its working great replaced my 26 year old brake actuator
Dave C - 02/12/2016


good stuff, nice product, shipped fast, exact fit / this is just what I wanted I had questions called and asked and got answers / the price couldn't be beat I tried other on line and local stores / am a happy camper I would buy here again.
George O


I cannot say enough about etrailer!! I ordered my part at a much cheaper price than I would have paid locally, it was mailed the same day and I got it three days later!! When ordering, I spoke to Shawn who was very professional and very precise in my wishes......she made me feel like a very valuable customer!! The part arrived in perfect shape and was easy to install. I would not hesitate to order from etrailer again!! Keep up the good work!!


Just as shown online product fit perfect great to see a company that has great service and low prices. I will buy again when I need something. Brake actuator looks exactly like my old one saved a lot of time and money.


Thank you guys at e trailer, great service, good prices and was a pleasure doing business. Will definitely shop here again for all my trailer needs.


Wow.. I’m impressed!! Super fast shipping and pro packaging.. hitch exactly as described! Thank you and yes, I’ll be back


delivered early, sound packaging. item is as described and shown. Will definitely reorder from e-trailer. Thank You

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