Arrives before Christmas 
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Replaces all the internal components of your Demco hydraulic brake actuator (DM8608601). Fits the brake actuator master cylinder on your Demco Kar Kaddy 3 equipped with drum brakes (KK370SB). Includes gasket #09153.
Features:
California residents: click here
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Jeff Hello, everybody. This is Jeff at etrailer.com. Today, we're gonna take a look at this master cylinder rebuild kit for the Demco drum brake actuator. And also, for the brake actuator on your Demco Kar Kaddy 3 with drum brakes. These parts will replace all the internal components on the Demco hydraulic brake actuator. Part number DM8608601.
We do sell that actuator separately on our website. And as I mentioned, this will also fit the brake actuator master cylinder on your Demco Kar Kaddy 3 that's equipped with drum brakes. And that part number is KK370SB. Again, sold separately. This part or this kit will include all these parts laid out here on the table.
The cork gasket. Master cylinder boot. The master cylinder piston assembly. Master cylinder valve. The valve seat.
The primary rubber cap. The large spring. And the snap ring. And there is comes with a set of instructions that'll show you what position these all go in when you go to install it. But that should do it for the review on this master cylinder rebuild kit for the Demco drum brake actuator and the brake actuator on the Demco Kar Kaddy 3 with the drum brakes..
I got the wrong one I need to return this one can you send me a label
I’m assuming they’re fine…my 87 YO dad asked me to order them for him, he still does all maintenance on his truck, tractors, equipment etc. Thank you for the prompt shipping. I can’t give a more accurate report on these parts bc it’s just too soon.
Perfect solution to save me money from buying a complete new master cylinder
Quality parts
Arrived fast. Product was exactly what I needed and etrailer was the only one who had it. Used on model A60 hydraulic surge brakes!
Customer service is great.
WORKED GREAT
Great price and they have all the parts I need!
Great kit, came quick what else would you need. Ordering from the big A never seem to know what your getting
Helpful staff
Worked great, easy to do repair.
Correct parts were in the package
perfect parts
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Brooke M.
6/26/2025
Absolutely, Thomas! Let me look into this and reach out to you :)