Arrives before Christmas 
Adapter lets you bleed your brakes using an air compressor. No need to pump the emergency lever on your Demco trailer brake actuator. Sealing gasket ensures tight seal to eliminate brake fluid leakage onto painted surfaces.
Features:
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Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hey everyone. I'm Ellen here at etrailer.com and today we're taking a quick look at the Demco master cylinder adapter. This is going to allow you to use a power bleeder to bleed your brakes and clear out that fluid so you can put in some fresh fluid, get everything running properly. This lets you put in a compressor or a hand compressor or a power bleeder to do that, to make it a little bit faster rather than having to worry about manually activating that cylinder, something that's not very fun to have to do so, makes that job a little bit easier.I've got a Demco brake actuator. I'll zoom out a little bit so we can look at that and this is going to mount in the top of the reservoir. And this should work with most of your Demco brake actuators.
It might not work with every single one, but with this one, this is one of our more common brake actuators, more popular ones. It looks like it threads down pretty easily, so it should work out just fine. You'll notice that there is that gasket at the bottom. So that's going to help to provide a good seal for that. So you shouldn't have any fluid coming out and causing any issues in it getting onto your paint and things like that.
But that's going to reduce that size down. So now you can attach a air compressor or a power bleeder to that.So it just threads right in. Does have kind of grips on the side to make that easy. That gasket is replaceable, so if anything should happen to it, that rubber starts to crack over time, you can replace that out and shouldn't have any issues with it. Give you a comparison of the caps.
So as long as your cap looks something like that, should match up pretty well. I think it's going to be a pretty common size for a lot of your Demco brake actuators. But that's pretty much all there is to it for our Demco master cylinder adapter for power bleeders. Thanks for watching.
My order was shipped out promptly, and upon using it, it did what it was advertised to do. No issues with shipping or the product. My only negative was that after I read a review that this part did not fit another customer's trailer, I called etrailer with my trailer's model number to verify it would work on mine before placing an order. The call taker checked and said she could not find any information to confirm whether it would work on mine or not, but that I could return it if it didn't. Thousands of these tow dollys were manufacturerd by Demco, and it just seems etrailer should be able to provide application information, especially for common equipment, they sell parts for. Otherwise, all good.
Owned the system for over a year and no rust so far. I can tell the difference in the braking power.
Great concept, but the bleeder bottoms out in the brake actuator. I had to make 3 more gaskets, and stack them to get it to tighten down. Had to clean up tons of fluid that spilled out on my carport after multiple attempts to bleed the brakes.Total waste of time and money!
no instructions or guide , if you don't know what you are doing take it to a pro
nice
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