Arrives before Christmas 
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This shock acts as a direct replacement for the one that came with your Demco model DA10, DA16, DA20, or DA91 trailer brake actuator.
Features:
Specs:
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 going to take a look at this replacement shock for the Demco Hydraulic Brake Actuators. This part will replace the shock in your Demco Hydraulic Trailer Brake Actuator. It is designed to fit the model numbers DA91, DA10, DA16 and the DA20 models. A few dimensions on this, the overall dimension from one end to the very other end, it's going to be right at 7".
Now when this extends out the full extension measurement will be 9-1/8". Distance from the center of this eye to the center of this eye, right at 6". And the same way if it's extended out it will be 8-1/8". Now the diameter on the smallest eye, which is right down here, is going to be right at 0.625" and on the larger eye is 0.89".But that should do it for the review on the replacement shock for the Demco Hydraulic Brake Actuators.
Average Customer Rating: 4.9 out of 5 stars (64 Customer Reviews)
This shock acts as a direct replacement for the one that came with your Demco model DA10, DA16, DA20, or DA91 trailer brake actuator.Excellent customer service. The part that I ordered fell out of the envelope during transportation. etrailer replaced it right away.
Awesome ! Fit perfect..ordered 2 replacement actuator shocks for my zieman flatbed trailer nobody had them here in CA..will shop here again soon! Very greatful for my purchase thanks etrailer!
My cylinders had rusted apart and this is a perfect replacement.
It has worked fine; I bought a spare to replace it when it wears out.
No hassle and delivered quickly plan on using etrailer again.
absolutely the best people i came across, excellent customer service, friendly, prompt & very efficient.
The material came in quickly and prompt ly.
As advertised and fit well
The part received was exactly as depicted in the website information.
My hydraulic brakes probably haven't been working since I purchased my used trailer 5 years ago. Videos of a properly working unit on etrailer helped me diagnose the problems. Easy to find parts that I needed online. Arrived ahead of expected time, even during Corana-19. All the parts fit perfectly!!! I couldn't be happier!
This company has the best customer service. Not only did they order my items the same day practically it was shipped way before the deadline. Thanks!!!
After 1 long tow the pistons stopped dampering stop and go jerking of trailer tongue
When no one has the right parts, etrailer.com has them! They’re staff are extremely helpful and they have all the parts you need to be able to repair/upgrade anything Trailer related.
High quality, cost effective replacement shocks for my surge brake system.
Great service. Part received quickly and exactly what was ordered!
Exactly what I wanted...shipped quickly and reasonably...great transaction with a great vendor. Will use etrailer.com again! Thank you very much! (And thank you Shaii!)
I couldn’t find these parts anywhere else. Thank you!
You guys ALWAYS have exactly what I need and your customer service is always top notch. I hate to admit but bought a competitors product because of the price and I should’ve known it was too good to be true! Product didn’t fit. Thank you so much for a great company
Aaron
5/29/2022
My overhaul of my boat trailer has been flawless thanks to you guys! Parts are working like new. Thanks for your great service.
Parts were back ordered but I was informed of the delay and was given a delivery date or cano. I chose to order and parts arrived early. Great service
Product was an exact fit and is working properly. Highly recommend etrailer for your trailer needs!
Fast shipping and product description.
Yes my delivery was delivery fast in good packing I will be shopping more
This ie the service I ordering parts, verv poditive, shipped right away . I will always order from ETrailer
Arrived in a timely manner, just as
Describe on website
Terry S.
6/20/2016
Its work just fine
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Charles
6/21/2023
It is still working fine