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  1. Brake Actuator
  2. Demco
  3. Surge Brake Actuator
  4. Drum Brakes
  5. Channel Only
  6. 20000 lbs GTW
Demco Unassembled Hydraulic Brake Actuator - Drum - Raw - Adjustable Flat Mount - 20,000 lbs

Demco Unassembled Hydraulic Brake Actuator - Drum - Raw - Adjustable Flat Mount - 20,000 lbs

Item # DM6186
Our Price: $426.95
Brake Actuator
This item qualifies for Free Shipping
Shipping Weight: 62 lbs
Quantity: 
In Stock
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Surge-type actuator comes unassembled, unprimed, and ready for welding. Features a durable composite master cylinder. Adjustable plate lets you use different flat-mount coupler attachments (sold separately). Weld-on application. 1-800-496-5010 to order Demco brake actuator part number DM6186 or order online at etrailer.com. Free expert support on all Demco products. Great prices and Fastest Shipping for Demco Unassembled Hydraulic Brake Actuator - Drum - Raw - Adjustable Flat Mount - 20,000 lbs. Brake Actuator reviews from real customers.
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Demco Brake Actuator - DM6186

  • Surge Brake Actuator
  • Drum Brakes
  • Channel Only
  • 20000 lbs GTW
  • Weld-On
  • No Lockout
  • Fabrication Coupler
  • Demco

Surge-type actuator comes unassembled, unprimed, and ready for welding. Features a durable composite master cylinder. Adjustable plate lets you use different flat-mount coupler attachments (sold separately). Weld-on application.


Features:

  • Hydraulic actuator activates trailer's brakes when tow vehicle slows or stops
  • Unassembled and unprimed for quick and easy welding
    • Welding while unassembled prevents damage to internal components
  • Adjustable plate has 4 different mounting positions for coupler (sold separately)
    • Designed for flat-mount coupler attachments only
  • Composite master cylinder is durable and efficient
    • Glass-reinforced nylon construction resists rust and corrosion
    • Large reservoir provides increased capacity for brake fluid
    • Automotive-style diaphragm cap creates completely enclosed system to help prevent contamination of fluid
  • Breakaway lever activates your trailer's brakes if the trailer disconnects from the tow vehicle
    • Snap hook on safety cable ensures secure connection to lever
  • Acetal copolymer lining provides smooth operation as actuator telescopes in and out
  • Heavy-duty steel construction
  • Weld-on installation
  • Made in the USA


Specs:

  • Application: trailers with hydraulic drum brakes
  • Gross towing weight: 20,000 lbs
  • Maximum tongue weight: 2,000 lbs
  • Mounting: straight, 3" wide trailer tongue
  • Distance between mounting holes:
    • 4-1/2" Horizontally on center
    • 2-1/4" Vertically on center
  • Model number: DA20
  • 1-Year warranty


Note: Because this actuator does not include a reverse lockout, it is recommended that you equip your trailer with free-backing brakes so that you can drive in reverse without the actuator triggering your trailer's brakes.


When you apply the brakes in your tow vehicle, deceleration occurs and momentum pushes your trailer toward the rear of your vehicle. With surge brake systems, the hydraulic actuator is triggered as your trailer moves forward, once your tow vehicle starts to slow down. When this happens, the actuator contracts, applying force to its master cylinder. This in turn supplies the necessary hydraulic pressure to engage your trailer's brakes.


Unassembled and Unprimed

Because welding can cause damage to the internal components, this actuator comes unassembled and unprimed for your convenience. No need to waste time taking apart an actuator or risk losing important parts. Once you have the actuator welded in place, prime and paint it to match your application.



6186 Demco Unassembled Hydraulic Brake Actuator - Drum - Raw - Adjustable Flat Mount - 20,000 lbs

Installation Details DM6186 Installation instructions


California residents: click here


Video of Demco Unassembled Hydraulic Brake Actuator - Drum - Raw - Adjustable Flat Mount - 20,000 lbs

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




Video Transcript for Review of Demco Brake Actuator - nassembled DA20 Hydraulic Brake Actuator - DM6186

Hi there, I'm Michael with etrailer.com. Today, we're gonna take a quick look at this Demco Unassembled Hydraulic Brake Actuator. This is a DA20 hydraulic actuator that's going to activate your trailer's hydraulic drum brakes when your tow vehicle slows or stops. This does come unassembled and unprimed, so that you can very quickly and easily weld this onto your trailer frame, and it's going to help prevent any damage to the internal components while you're welding it in place. This will weld onto a straight three inch wide trailer tongue. This is a heavy-duty steel construction, so it is going to give us a gross towing weight capacity of 20,000 pounds and a maximum tongue weight of 2,000 pounds.

This does have this adjustable plate for different mounting positions for your coupler. This is designed for your flat mount coupler attachments only. As you can see, the distance between these mounting holes, center to center horizontally, is 4 1/2 inches, vertically, they're right at about 2 1/4 of an inch apart, center to center. We're also going to get these acetal copolymer linings that are going to help prevent any friction, give us a nice, smooth operation as our actuator telescopes in and out inside our unit here. Our composite master cylinder is going to be very durable and efficient, it's got a nice, large reservoir, so it's gonna provide increased capacity for your brake fluid.

It's got a glass reinforced nylon construction, so it will resist rust and corrosion. We do have the automotive style diaphragm cap here that's gonna create completely enclosed system to help prevent any contamination of your fluid. So like I said, this does come disassembled, so all these components will assemble together to create that whole system, so you can just get your brake lines plugged in, and it will operate properly. They do also include the breakaway lever that will attach up here and it will be activated, if your trailer we're to come disconnected, it's gonna pull that lever forward, so that the brakes are applied, so that your trailer can come to a nice, safe, controlled stop instead of continuing down the highway unconnected from your vehicle. So overall, really nice system here to get those hydraulic drum brakes applied on your trailer.

This is made here in the USA, so you can trust it's made to the high quality standards that we've come to know and trust for products made here in the US. We do have lots of other options, if you're not interested in welding, you wouldn't need it to be disassembled, so it'd be a little bit less effort for you if you just got an assembled model, but if you are wanting to weld it onto your trailer frame, this is the way to go. That completes our look for today. Again, I'm Michael with etrailer.com, thanks for watching..


Customer Reviews

Demco Unassembled Hydraulic Brake Actuator - Drum - Raw - Adjustable Flat Mount - 20,000 lbs - DM6186

Average Customer Rating:  5.0 out of 5 stars   (1 Customer Reviews)

Surge-type actuator comes unassembled, unprimed, and ready for welding. Features a durable composite master cylinder. Adjustable plate lets you use different flat-mount coupler attachments (sold separately). Weld-on application.

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Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Wilson B
Updated by:
Wilson B
Employee Kristina F
Written by:
Kristina F
Employee Michael B
Installed by:
Michael B

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