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Disc Brakes
Replacement Master Cylinder w/ Bypass Electric Lockout for Demco Actuators - Disc Brakes
(7 reviews)
Price: $152.79
Replacement Master Cylinder w/ Bypass Electric Lockout for Demco Actuators - Disc Brakes
Item # DM5918
Our Price: $152.79
This item qualifies for Free Shipping
- Brake Actuator
- Master Cylinder Parts
- Master Cylinder
- Demco
- Disc Brakes
- All Info
- Reviews (7)
- Q & A (2)
- Photos
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Demco Accessories and Parts - DM5918
Master cylinder with bypass installs in your Demco actuator and wires into your tow vehicle so that your trailer brakes won't activate when you shift your vehicle into reverse. For use with Demco hydraulic surge-type disc brake actuators.
Features:
- Replacement master cylinder is designed for use with Demco trailer brake actuators with electric reverse lockouts
- Works with DA66B, DA86, DA91, DA10, DA16, and DA20 models
- Electric reverse lockout lets you back up without actuating trailer brakes
- Solenoid activates automatically when you shift into reverse
- Bypass configuration
- Bolt hole pattern: 2" wide x 3" long
- Overall dimensions: 2-3/4" wide x 5" long
5918 Demco Replacement Master Cylinder with Bypass Solenoid - Disc Brakes
Customer Reviews
Replacement Master Cylinder w/ Bypass Electric Lockout for Demco Actuators - Disc Brakes - DM5918
Average Customer Rating: 4.4 out of 5 stars (7 Customer Reviews)
Master cylinder with bypass installs in your Demco actuator and wires into your tow vehicle so that your trailer brakes won't activate when you shift your vehicle into reverse. For use with Demco hydraulic surge-type disc brake actuators.
- DM5918
Mike L - 11/07/2018
45494![Installation Instructions]()
Helpful Link
by: Tim11/06/2018
the solenoid failed I need to replace a gain. 580581
Comments
I spoke with my contact in the Tech Support department at Demco, who tells me its pretty rare for those solenoids to fail after only one year. What is much more likely is that the solenoid is not getting sufficient power, or the ground connection isnt secure enough. Instead of grounding the solenoid to the trailer frame, tie it into the ground for the trailer connector which will ensure a good ground connection. Youll also want to check the solenoid power feed and make sure youre getting a full 12-volts. If its not a wiring issue and the solenoid needs replacing, we carry a replacement as part # DM5404
Demco Solenoid Kit for Brake Actuators with Reverse Lockouts - Bypass
$41.08.
Mike L - 11/07/201845494
Helpful Link
- DM5918
by: Chris06/20/2019
Still working great after 1 year ! 660531
- DM5918
by: Brian02/20/2019
Master cylinder fit perfectly. Great customer service. Thanks. 606616
- DM5918
by: Derek07/19/2018
Needed a new master cylinder for my boat trailer. They had it in stock and shipping was fast. Will definitely use ETRALIER in the future. 543586
- DM5918
by: Anthony03/08/2018
This product will help when backing up the trailer. Replaced original perfectly. 482569
- DM5918
JohnK - 03/11/2018
35725
by: JohnK03/10/2017
Excellent Product and price,fit perfect,thanks for your speedy service. 350678
Comments
Product worked just find!
JohnK - 03/11/201835725
- DM5918
by: John Lozano09/17/2016
Part fit perfect!!!!! 295899
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Ask the Experts about this Demco Accessories and Parts
Do you have a question about this Accessories and Part?
- Converting Boat Trailer with Demco Actuator from Drum to Disc Brakes
- First, for the actuator that you have purchased, # 8605001, you can replace the drum master cylinder with Replacement Master Cylinder w/ Bypass Electric Lockout for Demco Actuators - Disc Brakes Item # DM5918. It will fit in place of the master cylinder you have and it comes with an electric reverse lockout.
For disc brakes I recommend replacing not only the brakes but the lines as well. If there is crud in the master cylinder then it is probably in the lines so replacing the lines...
view full answer... - 05680-C Master Cylinder Replacement for Trailer Recommendation
- The correct replacement master cylinder kit we have for your Demco setup is the part # DM5918 which comes with the lock out replacement.
view full answer...
Do you have a question about this Accessories and Part?
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Info for this part was:
Written by:
Lindsey S
Edited by:
Lindsey S
Expert Research:
Jameson C
Updated by:
Laura H
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