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Replacement Master Cylinder Assembly for Dexter Model 60 and Aero 7500 Brake Actuators - Drum

Replacement Master Cylinder Assembly for Dexter Model 60 and Aero 7500 Brake Actuators - Drum

Item # T4395100
Our Price: $138.59
You Save: $29.32
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Shipping Weight: 4 lbs
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This replacement assembly fits Dexter Model 60 and Aero 7500 trailer brake actuators for drum brakes. Includes master cylinder, filler cap, orifice fitting, and hardware. 1-800-940-8924 to order Dexter accessories and parts part number T4395100 or order online at Free expert support on all Dexter products. Great prices and Fastest Shipping for Replacement Master Cylinder Assembly for Dexter Model 60 and Aero 7500 Brake Actuators - Drum. Accessories and Parts reviews from real customers.
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  • Reviews (161)
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Dexter Accessories and Parts - T4395100

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

This replacement assembly fits Dexter Model 60 and Aero 7500 trailer brake actuators for drum brakes. Includes master cylinder, filler cap, orifice fitting, and hardware.


  • Works with Dexter Model 60 and Aero 7500 brake actuators
    • Drum brake models only
  • Includes:
    • Master cylinder
    • Gasket
    • Orifice connector: 1/64"
    • Hex bolt: 3/4" long x 1/4" diameter
    • Mounting dimensions: 1-/8" wide x 3-5/8" tall
    • Lock washer: 1/4" diameter
    • Diaphragm-style filler cap
    • Master cylinder cover

071-A98-00 Dexter Axle Model 60 Master Cylinder Kit - Drum

Replaces Titan 4395100

Video of Replacement Master Cylinder Assembly for Dexter Model 60 and Aero 7500 Brake Actuators - Drum

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

Video Transcript for Titan Brake Actuator T4395100 Review

Today we're going to be taking a look at part number T4395100. This is the replacement master cylinder assembly. This replacement assembly is going to fit Titan model 60 and Aero 7500 trailer brake actuators. It's designed for drum brakes only. You can see here everything that it's going to come with. We're going to go over just the components.

It's going to come with a master cylinder. Nice, heavy duty design. It's got the rubberized boot here on the end of it. If we remove that boot on the inside you're going to be able to see that it does come with the snap ring, the spring, and the seals. All of that is going to already be in place and again, located behind the boot.

It's also going to come with your gasket. It's going to be this right here, it's going to come with the master cylinder cover. You're going to get the orifice connector, goes into the threaded portion here at the back of your brake line. It's going to come with the hardware. You're going to get your four hex bolts. Those are going to measure 3/4 of an inch long by 1/4 inch in diameter, and you're going to get your 1/4 inch lock washers.

Has the diaphragm style filler cap, and just a quick tech tip, one of the ways to tell if the master cylinder is designed for disc or drum brakes is to simply take a paper clip and you can straighten it out. If we push it into this area back here, if it only goes in about an inch and a half that means that it's designed for drum brakes only. If the paper clip was to go in about three inches, then that means that it would be designed for disc brakes. That's going to do it for our review of part number T4395100. This is the replacement master cylinder assembly from Titan.


Customer Satisfaction Score:

Customer Reviews

Replacement Master Cylinder Assembly for Dexter Model 60 and Aero 7500 Brake Actuators - Drum - T4395100

Average Customer Rating:  4.8 out of 5 stars   (161 Customer Reviews)

This replacement assembly fits Dexter Model 60 and Aero 7500 trailer brake actuators for drum brakes. Includes master cylinder, filler cap, orifice fitting, and hardware.


There was a loud clunk and you could feel it when using the surge brakes on our ski boat trailer. The master cylinder was badly pitted. Now the braking is smooth and responsive.


Exact replacement for my trailer’s surge brakes. Tracking the shipment was interesting. Took a while from order date to ship date but it was worth it. I would do it again.


Conditioned very well, and ready to install. Should make repairing the brakes much easier.


Perfect fit and best price out there. Was delivered faster then my prime membership would have. Easy install and (thanks to etrailer) have a whole new braking system under my Outlaw.
Thanks Steven & etrailer for listening and your expert follow up!!


The product was just as shown and described online. Great quality. The delivery came sooner then expected.


Perfect replacement master Cylinder. Easy to install.


Good product at a good price. Got it installed and the system bled (the old brake fluid looked like thin mud coming out!) and everything works well. Install was easy, with the exception that the old master cylinder that I removed looks to have been just a hair shorter than this one that I got from etrailer. The new one was a tiny bit too tall for it to slide in the back of the actuator. I ended up removing the actuator from the tongue of the trailer to get the master cylinder bolted onto it. With the four master cylinder bolts torqued down it fit fine and the actuator easily went back into place on the tongue.

I do wish it had a metal cap like the old one that it replaced, but that is not a huge deal. I hope the plastic one holds up.

The plastic master cylinder cap seems to leak. Other than that, its fine.
Garrett T - 03/19/2021


This is the direct replacement for my Titan hitch. It appears to have an anodized exterior coating that should resist rust.

Mark M - 09/05/2021


Fit perfectly works great with purchase something from eTrailer again


Works great fast shipping


product works as promised. it appears to be a direct replacement but is very tight getting put back under original mounting bracket. My bracket is welded in place. It may be because of the new gasket (is thicker). I used a hammer and punch to bend the metal down a little on the trailer itself so the new master cylinder could slide into place. No other problems.


I needed this part to replace a rusted and blocked cylinder on a boat trailer. The part was delivered earlier than I expected and was exactly what I needed. The price was right and the service was superb.

Made the trailer connection like new. Have had zero problems with the brake assembly
Calvin A - 06/07/2021


Quick delivery, excellent customer service and great prices, as usual.

When I installed the Brake Fluid Master Cylinder reservoir on the coupler. It was a bit oversized in height. Finally was able to bolt on. Then when I was screwing in the four top bolts to hold the reservoir in place, one of the bolts snapped off in the housing. It will have to be extruded somehow.

Brake lines - no problem.



This master cylinder was a direct replacement for the one in My Escort Boat trailer. It came complete as advertised and I had it in just a couple of days. Could not be happier with the product and service.


I purchased master cylinder for a Titan model 60 and was easy to purchase from etrailer and i received it in the amount of time that was on the order. everything that was needed was included to change the part. I rate etrailer excellent because the order was easy and i received the part with no problems. The master cylinder was the exact part as the original


I ordered the brake actuator replacement for the Titan Model 60, paid extra for the UPS ground shipping and had the part in 6 days! You must take apart the brake actuator from the hitch as not to damage the gasket when installing the part. Had it installed in 15 minutes. Another 15 to bleed the drum brakes and all is well. LGB (lets go boating)
See pics


Perfect fit super fast shipping and excellent customer service thank you


Product seems to be an exact replacement for the Titan model 60 master cylinder. Just what I needed.

Aside from that, is one of the best online retailers I've used. They've been very helpful with any questions, and have been able to expedite shipments when needed. I would use them again, no question.


The master cylinder I reicieved is as good as anywhere else plus etrailer was the cheapest and fast delivery. Will do business with again.

all the trailer parts i got were the best quality and the best price i could find. thanks for the great site to keep my trailer on the road.
-- comment by: ted h - 03/14/2014


A bit bigger than the Dico it replaced (exact manufacturer and part number, go figure). Had to give the tongue some encouragement to get the new part to fit (certainly not etrailer's fault). Would have liked torque specs for cover.

etrailer was fantastic. Will definitely use again. Ordered on a Saturday, received ship notification on Sunday and part delivered on Tuesday. Unheard of - thanks George!


Terrific service. Item arrived earlier than expected in good shape.


Etrailer transaction was easy and the shock and master cylinder arrived fast. The m/c installed without any mods and now my boat trailer is a dream to tow.


Worked great to replace my Dico 60.
was the best price I could find.
I ordered it on Monday and got in the following Saturday.
Installation was quick and painless.
My only complaint is I had to ask for a tracking number. However, they responded to my email very quickly providing the tracking.


Brakes were rebuilt with etrailer parts and are working great. Thanks // etrailer.

Still performing great
Gordon P - 03/05/2019


I received very prompt notification of shipment and delivery using the standard ordering. Cylinder fit fine on my 31 year old Dico Model 60 actuator. Only trouble was I did not notice that this kit did not include the push pin and spring and had to order that separate.

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