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Replacement Master Cylinder Assembly for Dexter Model 10 and Model 20 Brake Actuators - Drum

Replacement Master Cylinder Assembly for Dexter Model 10 and Model 20 Brake Actuators - Drum

Item # T2374600
Our Price: $221.86
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Shipping Weight: 9 lbs
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This replacement assembly fits Dexter Model 10 and Model 20 trailer brake actuators for drum brakes. 1-800-940-8924 to order Dexter accessories and parts part number T2374600 or order online at Free expert support on all Dexter products. Great prices and Fastest Shipping for Replacement Master Cylinder Assembly for Dexter Model 10 and Model 20 Brake Actuators - Drum. Accessories and Parts reviews from real customers.
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  • Reviews (133)
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Dexter Accessories and Parts - T2374600

  • Brake Actuator
  • Hydraulic Drum Brakes
  • Master Cylinder
  • Dexter

This replacement assembly fits Dexter Model 10 and Model 20 trailer brake actuators for drum brakes.


  • Works with Dexter Model 10 and Model 20 brake actuators
    • Drum brake models only
  • Measures 4-3/4" on mounting hole centers
  • Includes:
    • Master cylinder
    • Orifice connector
    • Right-hand bracket assembly
    • Left-hand bracket assembly
    • Hex bolt: 3/8" diameter
    • Lock washer: 3/8"
    • Hex nut: 3/8" diameter
    • Plastic cylinder cap

068-095-00 Dexter Axle Model 10/Model 20 Master Cylinder Kit - Drum

Replaces Titan 2374600

Video of Replacement Master Cylinder Assembly for Dexter Model 10 and Model 20 Brake Actuators - Drum

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

Video Transcript for Titan Master Cylinder Assembly Installation

Speaker 1: Today we're going to be taking a look at and showing you how to install the Replacement Master Cylinder Assembly for Titan Model 10 and Model 20 Brake Actuators. Part Number T2374600. Now this is going to be a replacement for the Titan Model 10 and Model 20 Brake Actuators, and it's going to work for Drum Brakes only.It is going to come with a plastic filler cap, we can fill our brake fluid right here. So our master cylinder is going to send fluid out to our brakes making sure that they apply whenever we need them to. And the reservoir that is built in is going to hold all the fluid making sure that we have enough supply to supply our brakes with enough fluid. The master cylinder is also going to work with the Dico Model 10 and Model 20 Actuators.

And it's going to be a great replacement for your worn or possibly broken master cylinder. As you can see here, ours definitely needed a replacement. We started to have some rust build up, and the rod actually isn't going to go in at all no matter how hard we push, so we're not going to be able to rely on this to actuate our brakes.The brackets on the side are going to be pre-installed making installation that much easier. The hardware to mount the actuator is not included, so you will need to provide that. Now to make sure this will fit your trailer the mounting holes on each side are going to be 4 3/4" set apart center on center.

The first thing you're going to want to do is find the cap on your actuator, remove it and make sure there's no fluid inside the master cylinder. Then we can start removing the line that's at the back of our master cylinder. Now for this you're going to want to grab a 5/8" wrench and either an adjustable wrench or another 5/8" wrench to hold the fitting that's on the back of the master cylinder itself.Then we're going to have two bolts on each side that are going to be holding it in place. We're going to need to remove those and our application it's going to be a 1/2" head. So we're going to grab a 1/2" socket and ratchet and remove those bolts.

And we're going to hold on to these so we can reinstall them with the new master cylinder. Now the master cylinder is freed up and it should be able to come out, but if yours is like ours it may be a little rusty and a little tight to come out. You just want to take your time and work at it until you can pull it all the way out. Now it would be a good idea to clean out any kind of debris, dirt, rust or anything else that would be collecting from maybe storing your trailer outside or just from over years of having your trailer. You want to clean all of that debris out.Now with the master cylinder out you're going to want to make sure that the coupler is pulled all the away from the trailer, you're just going to grab it, pull it out.

And then we can get ready to put our new master cylinder in.So we're going to put it in the same way that we took the old one out. First we're going to remove the cap. And you'll notice that on the brackets here on the side they are labeled. That's going to have an L for left and an R for right. So we can take our master cylinder and making sure that the shaft is pointing toward the coupler, we're going to slide it in place. And again it may be a little bit of a tight fit just because of the rust and debris from over time. We're going to put it in place and we're going to line up the four holes with the holes that we took the bolts out of earlier. So with our holes lined up and our master cylinder inside the coupler we go and take our bolts that we removed earlier and reinstall them.So we're going to come back with our 1/2" socket and wrench and tighten up those four bolts. So if you're going to be hooking your master cylinder up to an already existing brake line or brake assembly is already in place, go ahead and do that. And then we can fill our master cylinder up and begin the bleeding process. However we're going to be replacing the brake lines on our trailer so we're going to get those in place and then we'll show you how to bleed them.So with everything tight and everything in place we can go ahead and fill up our master cylinder and start bleeding our brakes. So you're going to want to grab and extra set of hands and they're going to manually operate the actuator up front while we open up the bleeders at the brake assemblies. Now when you are operating the actuator back and forth you want to make sure that the reservoir stays full of fluid that way you don't get any more air in the lines. Start with the farthest wheel position away from the master cylinder or the longest brake line moving further forward or to the shortest brake line. Our bleeder's going to be right here at the back of our brake assembly, underneath this red cap. So we can just pull off this red cap. I'm going to use a hose with a bottle attached.Now I've got a little bit of brake fluid in here so I can see the bubbles coming out and making sure that it's not just fluid and that the air is coming out of the system. So we can put the end of the hose right on the end of our bleeder but still leave us enough room so that we can open it up. So we're going to use a 3/8" wrench to open up that bleeder valve and we're going to want to do this until we have a solid stream of fluid coming out. Then we're going to close the valve and cycle the actuator so we can see the bubbles coming out of the bottom here which is what we want. It's just going to take a little bit of time to keep pumping until we just get a solid stream of fluid, no more bubbles.And that will finish up your look at the Replacement Master Cylinder Assembly for Titan Model 10 and Model 20 Brake Actuators, Part Number T2374600.

Customer Satisfaction Score:

Customer Reviews

Replacement Master Cylinder Assembly for Dexter Model 10 and Model 20 Brake Actuators - Drum - T2374600

Average Customer Rating:  4.9 out of 5 stars   (133 Customer Reviews)

This replacement assembly fits Dexter Model 10 and Model 20 trailer brake actuators for drum brakes.


It arrived on time and worked well for the application I was repairing. (Perfect) Thank you I will definitely shop again..


It appears to be the correct part however the metal rod with rubber boot is missing (see circled section in photo). It may have fallen out of the box in transit since it was taped up so poorly and the USPS delivered it looking like they tore the box open. Probably should have been secured in the box a lot better than one piece of tape wrapped once because of the weight of the item. Probably the worst I have ever received a package from eTrailer so I know this isn’t normal.

Etrailer Expert

Tyler M.


Hi Robert, Thanks for your feedback! Our customer service team will be reaching out to you.


Excellent service with knowledgeable associates who interpret parts needs for the job.


A bolt on system that needed a minor work to fit as a replacement oem part, but overall, it works good.


The part looks excellent just exactly what I need the installation will come when it stops snowing yet again. UPS sucks like they always do but that has nothing to do with this company they were quick they put it in the system and sent it on its way you couldn't ask for anything more. And I asked for assistance and they offered everything they could which was excellent


I have a 1987 custom built trailer that I tecientlylpp


About a year ago, I needed a new master cylinder for a very old EZ Loader trailer hauling a 3 ton boat. It is comforting to have a company like to go to for hard to find OEM parts at still reasonable prices. Of course, it's even better to have working brakes! I found back in 2012 when I needed a new license plate mounting assembly with lights. They had exactly what I needed in stock, ready to ship. Thanks for being there.


I found this sight just looking for a question answered, not only was it answered but the part I needed was in stock. I wish i had found them earlier when i was replacing the rear shoes and cylinders. No offense to NAPA but I could have bought a whole backing plate assembly ready to bolt on for a fraction of the money I spent buying the parts individually. has been saved in my list of favorites

Kevins C.


Well I installed it on a customers trailer and he hasnt been back to complain, so that makes me happy!????


Replacement brake actuator fits with no issue and works like a charm! Now I have trailer brakes again.
etrailer was good to work with, shipped on time, no problems. Would use again.



Perfect, no problems


It fit perfect and was exactly what I needed. I would like to thank George for the quick response and delivery. Thanks


Ths is my second order from Etrailer. Top Drawer vendor (price, prompt shipping, packaging, ect) and even better is the customer service. Kathy Hoette went way our of her way to help me with some technical questions and Andi D. made sure it got to me asap by special request....I have previously used Champion, Eastern and Pacific trailer supply for various trailor parts orders (brakes, bearings, seals, Hydraulics, ect) but I will now go to Etrailor 1st as primary vendor...Thanks again..Tim in Hollister Ca.


Exact fit and works like a charm. Never thought I'd find the entire assembly until looking on etrailer - they have everything! East install, added brake fluid, actuated cylinder and installing new brake fluid into my brand new lines was a snap! Looking forward to many years of useful service out of this. Plus I ordered the cover to keep it away from the elements.


This master cylinder replaced the one that came on an M&W 300 bushel gravity wagon from the 1980s (no longer in production, and company closed). It was used for the 2014 grain harvest and performed as needed. 1963 Ford F100 4x4 brake hoses are the match needed (these are a few inches longer than the non-4x4). The customer service reps were excellent, as I had made an error in my order and they very quickly corrected it by email and phone and got my order out and to me on time.


The day before our annual vacation our surge brake broke on our boat trailer ... I was not able to find a replacement locally.
I found the part on ETRAILER ... their web site was simple to use, their product description gave me all the details needed to make a confident purchase. I paid for over night shipping. My replacement part arrived at 10:00am the next morning. George in shipping stayed in contact with me the entire time, I was impressed.
We were able to install the part and two hours later were on our way ....... thank you ETRAILER !!!


I ordered a master cylinder for a trailer that I had recently acquired. I had tried finding it everywhere locally no one has even heard of a hydraulic trailer brake system. So I googled hydraulic trailer brakes. came up and I easily found the product I needed on their site. I ordered it on Monday and it arrived on Wednesday. It was super fast delivery and a perfect fit. It works exactly like it is supposed to. I could not be happier. Thanks


Took the Boat out yesterday with the new master and even though the trailer is 40 years old it stopped like brand new. Thanks for all the pic's and video as I wasn't sure this master was the same as the one installed on my 1978 Caulkins trailer. as it turns out the casting numbers were identical. 2 day shipping made sure that we could be on the boat as my son and family came up from Texas and we spent a great day on the water. I was nervous at first but all worked out awesome.

Thanks I will recommend,


Ordered late Tuesday, received Friday, installed Saturday and it fit perfectly. Ours is a 25-year old trailer with a peculiar master cylinder that actuates the slave cylinders when a surge of pressure trips the hydraulic system. I could not even supply the make or model of the trailer, just the weight capacity. Thank you for pulling the rabbit out of the hat the first attempt. You have earned my future business.


Part fit perfectly. Slid in where old one was. Hand started 4 bolts then brake line snugged bolts then brake line. Bled system with my vacuum brake bleeder. Worked perfect pulling our cruiser


The master cylinder works as designed which allows me to continue to use my trailer as needed


Perfect replacement, replaced it when I did all new hydraulic lines and brakes. Fit right in work perfect.


I called a few different companies regarding pricing and delivery of a product for my trailer. Pricing was about the same at the different companies but the sales/parts department (Juanita) made the difference in choosing etrailer as my supplier. She was knowledgeable and courteous and got the part out immediately. The initial purchase being a trial run I wouldn't hesitate to order through them exclusively.


Wow! Shot in the dark for a 25-year old trailer, brand unknown and you guys scored a bullseye the first try. Great price, excellent delivery and pleasant service staff seals
the deal for me. I should also mention that your staff seems not to know what a "hold button" is. Thank you, Thank you.


Life saver, thanks


These fit my application like a glove !!! Way easier than piecing together all the parts separately!! Hardest part of the install was re-starting the brake line fitting because it fit so perfectly to my application !!


Hello, Service Helpdesk was a great help in verifying the parts that I was ordering were correct for my trailer. The parts that I order were correct and delivered in a timely manner. Great service and quality parts. Thanks,

Show More Reviews

See what our Experts say about this Dexter Accessories and Parts

  • Does Titan Brake Master Cylinder Require Bench Bleeding
    When installing the Replacement Master Cylinder part # T2374600 you really only need to bleed the system once it's installed and at the brake assemblies.
    view full answer...
  • How Does Trailer Brake Line Attach To Master Cylinder Body
    The master cylinder you referenced is for drum brakes and does have a check valve to maintain the correct psi level for the brakes. Disc brakes will require higher psi level and will not have the check valve. The brass connector indicated by the red arrow in the attached photo is the orifice connector and is where your flexible brake line should be connected. The male end of the orifice has 1/8 inch threads and the female end that the brake line attaches to is 3/16 inch threads.
    view full answer...
    Image 1 for
  • Troubleshooting Titan Model 10 Actuator That Locks Up Drums Brakes
    Is it possible you have a disc brake actuator on a trailer with drum brakes? The disc brake systems require a higher psi so if a disc actuator was used on a drum setup it would lock up the brake quickly. If this were the case you could easily swap the master cylinder to a drum one with part # T2374600 and you'd be set.
    view full answer...
  • Replacement Master Cylinder Assembly for Dico Model 10 Brake Actuator
    Thanks for the pictures! To replace the master cylinder in your Dico Model 10 actuator you are going to want to use the Replacement Master Cylinder Assembly for Titan Model 10 and Model 20 Brake Actuators item # T2374600. This master cylinder is specifically for drum brakes. I would be happy to help you replace your brakes but I need to know what size you currently have on them to make a specific recommendation. I have linked the selection our of hydraulic drum brakes below. To recommend...
    view full answer...
    Image 1 for Image 2 for Image 3 for
  • Titan Hydraulic Brake Actuator Replacement Parts
    We carry a number of parts to rebuild a Titan hydraulic brake actuator. You just want to make sure that you get the correct parts based on if you have drum brakes or disc brakes because they are slightly different due to the fact disc brakes require more pressure. I've linked the page to all of your replacement part options, but let me know if you need further help.
    view full answer...
  • Does the Master Cylinder Cap on the Replacement Assembly # T2374600 Allow Rain Water to Enter?
    I confirmed with my contact at Dexter (the manufacturer of Titan products) that the reservoir plugs and the plastic caps on the Replacement Master Cylinder Assembly for Titan Model 10 and Model 20 Brake Actuators - Drum # T2374600 will not allow rainwater to enter. However, it is not recommended to completely submerge the replacement assembly under water.
    view full answer...
  • Replacement Master Cylinder for Titan Model 20 Drum Actuator
    For a replacement master cylinder for the Titan Brake Actuator T1055100 you would want the part # T2374600.
    view full answer...
  • Will Titan Master Cylinder Assembly Fit Dico Hydraulic Brake Actuator
    If your Dico Actuator is a model 10 or 20 and is designed for disc brakes then part # T4749501042 will work well for you. If you have drum brakes, and have model 10 or 20, then the replacement master cylinder you need is part # T2374600.
    view full answer...
  • Replacement Master Cylinder Recommendation for Titan Model 10 Brake Actuator #T1735200
    The Titan Actuator part # T1735200 that you have is a Model 10 actuator so the correct master cylinder you would need is the part # T2374600.
    view full answer...
  • Replacement Master Cylinder and Reverse Lockout for Titan Model 10 Drum Brake Actuator
    Since you have a Titan Model 10 actuator for drum brakes the correct master cylinder replacement would be the part # T2374600. For a replacement reverse lock out solenoid you'd then need the part # T4748800.
    view full answer...
  • Will the Replacement Master Cylinder Assembly # T4749501042 Work on a Cronkhite Trailer
    If the master cylinder from your brake actuator on your Cronkhite trailer has the numbers 23744 stamped on the side, then it probably uses a Titan model 10 or model 20 brake actuator. To ensure that you select the correct replacement master cylinder assembly, we will need to know if your trailer has disc brakes or drum brakes. If your trailer has disc brakes, then you will need the replacement master cylinder assembly, # T4749501042, that you referenced. If your trailer has drum brakes,...
    view full answer...
  • Replacement Master Cylinder for Titan Model 10 or Model 20 Actuator
    The easiest way would be to know the part number, but if you need a master cylinder replacement you actually don't need to know if your Titan actuator is a Model 10 or Model 20 because the master cylinder replacements we carry can be used for either. If you have a drum brake actuator you would need the Replacement Master Cylinder Assembly for Titan Model 10 and Model 20 Brake Actuators # T2374600. If you have a disc brake actuator you would need the Replacement Master Cylinder Assembly...
    view full answer...
  • Converting Titan Model 6 Drum Brake Actuator for New Disc Brakes
    When replacing the master cylinder on your existing Titan Model 6 Actuator, you will want to use a master cylinder for disc brakes like # T1777405. The master cylinder that is currently on your actuator is designed for the lower pressure drum brakes, so changing to one for disc brakes is highly recommended. This master cylinder assembly is designed for Titan Model 6 brake actuators and will include the master cylinder, mounting plate, hex bolt, push rod assembly and installation hardware.
    view full answer...
  • Replacement Master Cylinder for Titan Model 6 and 10 Brake Actuator
    We have the exact part you are looking for depending on the model you need. For Titan Model 6 master cylinders, we have the Replacement Master Cylinder Assembly for Titan Model 6 Brake Actuators - Drum # T1777401. If you are in need of the Titan Model 10 master cylinder we have the Replacement Master Cylinder Assembly for Titan Model 10 and Model 20 Brake Actuators - Drum # T2374600.
    view full answer...
  • Correct Replacement Master Cylinder for Dexter/Titan Model 20 Brake Actuator
    The Replacement Master Cylinder Assembly for Dexter Model 10 and Model 20 Brake Actuators part # T4749501042 is designed for Titan Model 10 and 20 Surge Brake Actuators for disc brakes. If you have drum brakes you'll need to use the part # T2374600 instead. I'm not sure what surge brake actuator you have but if you can let me know I'd be glad to try and confirm this for you. If you are unsure, look for any markings stamped into the coupler and or send some photos my way.
    view full answer...
  • Replacing Master Cylinder in Titan Model 10 Actuator on Boat Trailer
    If the master cylinder you need is the part # T2374600 that would indicate that you have a Model 10 actuator like the part # T4750620. Which normally this bolts to the trailer frame. The picture you submitted doesn't quite show the coupler so I can't really tell what's going on. But you should be able to unbolt the coupler from the trailer to access the master cylinder and replace it. The two lower bolt holes that I pointed out in the picture are what hold the master cylinder to the coupler.
    view full answer...
    Image 1 for Image 2 for
  • Orifice Connector For Old Style Titan T20
    What you have in the photo is the older 068-351-00 orifice connector with your Titan T20. Those connectors are obsolete and are not even available through Titan (now Dexter) any longer. The only other option is to replace the master cylinder completely in the older T20 using the part # T4749501042 if you have disc brakes or part # T2374600 for drum brakes which come with the a new connector.
    view full answer...
    Image 1 for
  • Can Titan Model 10 Actuator be Converted to Disk Brakes from Drum
    Since you have a Titan Model 10 actuator for drum brakes you can convert them to disc. You can swap out the master cylinder of your Titan model 10 actuator to the part # T4749501042 and you would have a disc brake setup. Now to determine the rest of the parts needed requires a bit more information. We need to find the hubs that will fit the spindles of your trailer. I attached a help article that will walk you through that process.
    view full answer...
  • Replacement Master Cylinder Cap For Trailer Surge Brake Reservoir
    The Replacement Master Cylinder Cap # T4830601 does have a fine thread and measures at the 1-5/8" thread diameter. This cap is designed for the Titan Model 10 and 20 master cylinders. You can reference the Replacement Master Cylinder Assembly # T2374600 for a visual reference to see if it resembles what your trailer has.
    view full answer...
  • Replacement Parts for Surge-Type Brake Actuator Trailer Couplers
    Yes, we carry replacement master cylinders and reverse lockout solenoids for surge-type brake actuator trailer couplers like those shown on the linked page. I also linked our main page for all parts, including master cylinders and lockout solenoids. Since trailer/RV makers do not maintain detailed specs on small items like the couplers used in their products, you'll want to check your coupler for any stickers/stampings that indicate its brand, part number and/or capacity. Many couplers...
    view full answer...
  • How to Remove the Master Cylinder Assembly on a Titan Model 20 Brake Actuator
    The master cylinder assembly on the Titan model 20 actuators, like # T1521000 as an example, is bolted to the inside of the actuator. Take a look at the picture I have included as an example. There are 2 bolts on each side holding in the assembly. Remove the bolts, the brake line, and the cap and the assembly should come out.
    view full answer...
    Image 1 for
  • How To Replace Shocks In Titan Model 10
    I believe that you have a Titan Model 10 actuator based off of the diagram that you are referring to which I have attached below. I contacted Dexter (they now own the Titan products) and the replacement shock part # T1242600 is not attached to the master cylinder part # T2374600 of the model 10 at all. They are attached to the side of the front sliding mechanism with bolts pictured in the diagram as number 31. The shocks (number 29) bolt to the ovals in the side of the sliding mechanism.
    view full answer...
    Image 1 for
  • How To Know Which Master Cylinder Will Be The Correct Replacement For A Surge Actuator
    Replacement master cylinders will be brand specific, so they cannot be mixed and matched. As an example, the Titan master cylinder # T2374600 will only fit their Model 10 and Model 20, and the Demco master cylinder # 5650 will only fit their drum actuators. With that said, I was unable to find out which brand surge coupler is used on the Butler trailers, unfortunately. What you will need to do is contact Butler with your VIN, or trailer model number, and find out which was used. You will...
    view full answer...
  • Replacement Master Cylinder Assembly for Titan Actuator Coupler for Disc Brakes
    The Titan Actuator you referenced, part # T4750620, is their model 10 actuator which uses replacement master cylinder # T2374600. Their model 60 actuator uses replacement master cylinder assembly # T4820000.
    view full answer...

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Info for this part was:

Employee Lindsey S
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Employee Jeff D
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Employee Robert C
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