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Replacement Master Cylinder Assembly for Dexter Brake Actuators - Disc Brakes
Dexter

Replacement Master Cylinder Assembly for Dexter Brake Actuators - Disc Brakes

Part Number: DX44FR
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$177.18
Retail:$228.19
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Replace the master cylinder in your Dexter disc brake actuator. Includes master cylinder, filler cap, orifice fitting, solenoid valve, and hardware. Fits most Dexter disc brake actuators in the A Series and XR Series. 1-800-940-8924 to order Dexter accessories and parts part number DX44FR or order online at etrailer.com. Free expert support on all Dexter products. Great prices and Fastest Shipping for Replacement Master Cylinder Assembly for Dexter Brake Actuators - Disc Brakes. Accessories and Parts reviews from real customers.
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  • Reviews (39)
  • Q & A (0)
  • Videos (1)
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Dexter Accessories and Parts - DX44FR

  • Brake Actuator
  • Disc Brakes
  • Master Cylinder
  • Dexter

Replace the master cylinder in your Dexter disc brake actuator. Includes master cylinder, filler cap, orifice fitting, solenoid valve, and hardware. Fits most Dexter disc brake actuators in the A Series and XR Series.


Features:

  • Replaces the master cylinder in your Dexter disc brake actuator
  • Fits most Dexter disc brake actuators in the following Series: (A-60, A-75, A-84, A-160, A-200, XR-84 and XR-200)
  • Durable aluminum construction
  • Kit components include: master cylinder, gasket, orifice connector, 4 hex bolts, 4 lock washers, diaphragm-style filler cap, and master cylinder cover
  • Made in the USA


K71-757-00 Dexter Master Cylinder Replacement Kit - Disc Brakes

Replaces Dexter K71-755-00





Video of Replacement Master Cylinder Assembly for Dexter Brake Actuators - Disc Brakes

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for An In-Depth Look at the Replacement Master Cylinder Assembly for Dexter Brake Actuators

Hello everybody, this is Jeff at etrailer.com. Today I'm gonna take a look at the replacement master cylinder assembly for your Dexter disc brake actuators. Now this part here will replace the master cylinder in your Dexter disc brake actuator. This kit will include all the components shown here, includes the master cylinder. The rubber grommet up front here has the master cylinder cover plate with the gasket installed. And if you notice, the reservoir cap at the top is a nice recessed reservoir cap.

The very back you can see it includes the electric reverse lockout solenoid and also the orifice connector here for your brake line to attach to. Now this is designed to fit most Dexter disc brake actuators in the following series, A-60, A-75, A 84, A 160, A 200, and the XR 84 and XR 200 models. The master cylinder itself is a nice durable aluminum construction, gives you increased strength and corrosion resistance. And the recessed reservoir cap is nice 'cause it prevents any damage from something hitting it. But that should do it for the review on this replacement master cylinder assembly for the Dexter disc brake actuators.

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Customer Satisfaction Score:

Ratings & Reviews

4.7

39 reviews
Replace the master cylinder in your Dexter disc brake actuator. Includes master cylinder, filler cap, orifice fitting, solenoid valve, and hardware. Fits most Dexter disc brake actuators in the A Series and XR Series.

by:

Perfect fit on A 60 surge brake trailer (Marine Master). I was able to pressurize and flush the brake lines before installing master cylinder with a lower unit outbound motor hand pump, which saved A LOT of time bleeding the brakes. New Master cylinder is working perfectly.



by:

Product was exactly the part I needed as described. Excellent and fast service.



by:

PART WORKED GREAT. CUSTOMER SERVIVE WAS VERY HELPFUL AND KNOWLEDGEABLE.



by:

fast shipping



by:

It was a great experience to purchase a master cylinder for the trailer. The part was in perfect condition and most importantly it was great support and explanation for installation by Lauren A. Thank you very much!



by:

Exact replacement. Works excellent. It helped to prime the unit with hose off first.



by:

Etrailer has always been excellent in getting orders out and correct. Great customer service.



by:

although shipping was delayed, etrailer made good by refunding my shipping. part fit perfectly and worked as expected.



by:

This part worked very well as a replacment part in my 21 foot boat trailer.
The new glides were a bit tight, but i think the corrosion on the trailer were the cause of that.



by:

I like the built-in reverse lockout solenoid. Fits perfectly.



by:

The brakes on the trailer are still working great.



by:

It fit my A70 break actuator perfectly. Thanks



by:

Exactly what I needed for my 2021 MasterCraft trailer!



by:

Exact replacement to OEM.



by:

Received as scheduled and replaced the old unit and everything works and was at the best price I could find. Thanks



by:

Parts as described quick delivery easy Folks do work with



by:

Worked perfectly



by: 05/12/2025



by:

Excellent, exactly what we needed. I called in the order and the woman I worked with was exceptional!



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by:

good products. fit and operate great.



by:

Great v to work with. Fast shipping



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See what our Experts say about this Dexter Accessories and Parts

  • How to Make Fulton A60 Swinging Coupler Compatible with Disc Brakes
    Thank you for all of the info! I did some digging and found out that your older Fulton A60 swing away actuator was actually a UFP A60 actuator on a Fulton coupler hinge like part # FHDPW330300. I was able to speak with my contact at Dexter who said you can make your drum brake actuator compatible with disc brakes by changing out the master cylinder with kit # DX44FR. If you don't already have disc brakes I am linking our selection for you to filter through. If you'd like a recommendation...
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  • Replacement Master Cylinder For Dexter Brake Actuator A60, A75, XR84
    When it comes to replacing your Master Cylinder assembly The Replacement Master Cylinder Assembly for Dexter Brake Actuators - Disc Brakes # DX44FR is the correct part for you. This master cylinder assembly fits most Dexter disc brake actuators in the following series: A-60, A-75, A-84, A-160, A-200, XR-84 and XR-200 The kit includes the master cylinder, gasket, orifice connector, 4 hex bolts, 4 lock washers, diaphragm - style filler cap, and a master cylinder cover. The assembly is...
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  • Option For Replacing Or Repairing UFP Calipers
    Hello Glenn. I do have a solultion for you, but UFP is no longer in business, so there is no way to source a repair kit or a replacement caliper. Since other brands calipers will not directly replace the UFP, your best option will be to do with a whole new disc brake kit. Assuming your axles are 3,500 lb rated you can use the Kodiak Disc Brake Kit - 10" Hub/Rotor part # K2HR35D which will come with new hub/rotors, calipers and brake pads. As far as the master cylinder, it can certainly...
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  • Solenoid Valve For Adding To Ranger Boat Trailer With UFP XR-84 Surge Brake Actuator
    Yes, the Solenoid Valve # T4748800 will allow you to add a reverse lockout on your UFP XR-84. We do also have the Replacement Master Cylinder Assembly # DX44FR which has a built in solenoid if you are needing to replace your master cylinder as well. This assembly is for disc brakes as their Drum # TK71-756-00 brake unit does not have a solenoid since they pair with free backing brake assemblies.
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  • Replacement Master Cylinders for UFP A-84 Actuator
    For replacement master cylinders for your UFP A-84 you would need the part # DX44FR for a disc brake or # TK71-756-00 for a drum brake setup.
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  • Replacement Master Cylinder and Shock for Dexter A-60 Actuator
    The correct replacement master cylinder for a Dexter A-60 actuator like what you have would be the part # DX44FR. Then for a replacement shock you would need the part # TK71-758-00.
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  • Replacement Master Cylinder for Dexter DX7.5L A-60XL Brake Actuator w Electric Lockout
    To replace the master cylinder on the Dexter DX7.5L A-60XL Brake Actuator w Electric Lockout # DX43FR you need the following: - Replacement Master Cylinder Assembly for Dexter Brake Actuators # DX44FR
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  • Replacement Master Cylinder for a UFP A-60/A-75 Surge Brake Actuator
    We do have Dexter brand master cylinder replacements for the model # UFP 60/A-75 brake actuators. I have listed both options below depending on what type of brakes you have: Drum Brakes - Replacement Master Cylinder Assembly for Dexter Brake Actuators item # TK71-756-00 Disc Brakes - Replacement Master Cylinder Assembly for Dexter Brake Actuators item # DX44FR
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  • Replacement Master Cylinder and Inner Member For Dexter A-75 Surge Brake Actuator
    We do have the Replacement Master Cylinder Assembly # DX44FR or Inner Member # DX99FR (tandem axle)/ Inner Member # DX39FR (single axle) for your Dexter A-75 master cylinder. If the master cylinder is the only damaged part that is all you will need to replace.
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  • Correct Replacement Master Cylinder and Shock for a Dexter Model A60/A75/XR84 Brake Actuator
    For a replacement shock you're going to want the Replacement Shock Absorber Spring Kit for Dexter Brake Actuators # TK71-758-00, and for the replacement master cylinder you'll just need the Replacement Master Cylinder Assembly for Dexter Brake Actuators # DX44FR and you'll be all set.
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  • What Actuator Will Replace My UFP A-60
    When It comes to replacing your A-60, I recommend The Dexter DX7.5L A-60 Brake Actuator w Electric Lockout - Bolt On - Disc - 2 inch Ball - Zinc - 7.5K # DX89FR. It is a bolt-on model, that has a weight capacity of 7,500 pounds. It has the electric reverse lockout included which allows you to back up without actuating the trailer brakes. It has an Aluminum master cylinder. I have attached a review video link below.
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  • How to bleed the brakes on a surge brake actuator on boat trailer
    When bleeding the brakes on a surge actuator, such as the Dexter DX7.5L A-60 Brake Actuator w Electric Lockout # DX56FR, you want to start by making sure there is fresh fluid in the reservoir then press a screw driver against the rod in the access hole to pump the brakes. If you don't have an access hole, wrap the safety chains around a pole or board and push the top into the coupler to force the pumping action that way. I attached a detailed write-up page that explains this process, and...
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  • Replacement Master Cylinder And Shock For UFP A-60 / A-75 / XR-84 Surge Brake Actuators
    The Replacement Shock Absorber Spring Kit # TK71-758-00 is the correct shock for your UFP Surge Brake Actuator. The picture you included does not specify if it is for a disc or drum brake set, so I have found both for you to choose from. Disc Brake Replacement Master Cylinder Assembly # DX44FR Drum Brake Replacement Master Cylinder Assembly # TK71-756-00
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    Image 1 for
  • Replacement Master Cylinder for Dexter Brake Actuator
    Judging from the photo, it does look like the # DX44FR that you were looking at is the correct replacement part you need. This is the replacement master cylinder for the A-60, A-75, A-84, A-160, A-200, XR-84 and XR-200 series of Dexter actuators, in case you know what model you've got. When it comes to the Replacement Shock Absorber Spring Kit for Titan/UFP Brake Actuators # TK71-758-00 you were looking at, those measurements are as follows: Large hole: 3/4" Small: 1/2" Retracted: 6-1/2" Extended:...
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    Image 1 for Image 2 for
  • Replacement Master Cylinder for Dexter UFP A-60 Brake Actuator
    The Replacement Master Cylinder Assembly for Dexter Brake Actuators - Disc Brakes # DX44FR can be used to replace the A-60 master cylinder and is designed to fit on a variety of Dexter/UFP brake actuators.
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  • Parts Needed to Convert Dexter A-60 Drum Brake Actuator to Disc
    The Replacement Master Cylinder Assembly for Dexter Brake Actuators - Disc Brakes # DX44FR is all you will need to convert it to a disc brake actuator. Once you get it installed you will be all set and ready to go.
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  • Can I Use the Dexter Replacement Master Cylinder for Disc Brakes to Replace an A60 UFP Actuator
    Your old unit may have been self grounding if it only had the blue wire for the reverse light circuit, but the Replacement Master Cylinder Assembly for Dexter Brake Actuators - Disc Brakes # DX44FR does have an independent ground wire that will need to be connected. You'll connect the blue wire to your reverse light circuit and the white wire will be grounded to a rust and paint free spot on the the trailer frame.
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  • Are Replacement Gaskets Available For A Dexter/UFP A-60 Surge Brake Actuator Master Cylinder
    Hi Coleman, It doesn't look like we currently offer the gasket for the master cylinder so the only option we could offer would be to replace the master cylinder completely with the Replacement Master Cylinder Assembly for Dexter Brake Actuators - Drum Brakes # TK71-756-00 or for disc brakes # DX44FR. You can try reaching out to Dexter directly to see if they can ship you that gasket though.
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  • Replacement Master Cylinder and Shock for UFP A-60 Trailer Actuator
    For the UFP A-60 we have the replacement shock part # TK71-758-00 and then for a replacement master cylinder we have the part # DX44FR. If you need something else let me know and I'll see if we can get what you'd need.
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  • What is the Height Width and Length of the Replacement Master Cylinder Assembly for Dexter # DX44FR
    Hello Chris, Always jumping at the opportunity to stretch my legs, so thank you for that. On the Replacement Master Cylinder Assembly for Dexter Brake Actuators - Disc Brakes # DX44FR the height is 2 6/8", width 2 7/16", and length 6 7/8". I attached some images as well so you can see where exactly I was measuring. If you need any other specific measurements please let me know. If you would like to tell me the model number of your brake actuator I am happy to confirm the fitment as well.
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  • Upgrading A60 Drum Surge Brake Actuator for Disc Brakes
    Thaks for reaching out again, Shane! You will need to convert your actuator to a disc actuator so it has enough pressure to apply the disc brakes (like you said), so to accomplish this you just need the Replacement Master Cylinder Assembly # DX44FR. As for the disc brake assemblies, I really like the DeeMaxx brand because their Maxx coat finish is rated for over 1,000 hours of salt spray, which is well over what any of the competitors have listed. The Kit # DE66YR is the standard 3.5K...
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  • Replacement Master Cylinder Assembly for Dexter Brake Actuators
    The replacement master cylinder for the Model DX6.6 Disc Brake Actuator 70519 is going to be the Replacement Master Cylinder Assembly for Dexter Brake Actuators - Disc Brakes item # DX44FR. The DX6.6 used to be the model 660E brake Actuator and the Replacement Master Cylinder works with that line.
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  • Troubleshooting an Actuator that Leaks from the Reverse Lock Out Solenoid
    There are a couple options that could be causing this issue with your Replacement Master Cylinder Assembly # DX44FR. The first would be an incorrect fitting. The female brass fitting exiting the solenoid or master cylinder body of the K71-757-00 (DX44FR) is a 3/16” inverted flare fitting which is a US standard “straight” male metal brake line or male brake hose thread. The female “cone” inside the inverted flare fitting seats and seals on the male cone inside the solenoid female fitting. ...
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  • Option to Replace Master Cylinder For Disc Surge Brakes on Single Axle Boat Trailer
    Hi Michael, We have a number of different options to replace the master cylinder for the disc brakes on your boat trailer, but no way of knowing what actuator is on your 2008 Midi boat trailer. You'll need to know the model of actuator you have to get the right replacement, and I'll list out the options for you: - Replacement Master Cylinder for Dexter Model 10 and 20 Actuators - Disc Brakes # T4747100 - Replacement Master Cylinder Assembly for Dexter Model 60 Brake Actuators - Disc...
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Info for this part was:

Employee Jeff D
Installed by:
Jeff D
Employee Jameson C
Expert Research:
Jameson C
Employee Daron K
Edited by:
Daron K
Employee Mike S
Written by:
Mike S
Employee Michael B
Updated by:
Michael B
Employee Manda E
Updated by:
Manda E

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