Demco Brake Actuator - Surge Brake Actuator - DM8759138 Review Video

A double lip seal is an upgrade over the single lip that uses a reinforcing spring behind the lip that does a better job of retaining the grease inside the hub and excluding water and road grime. It is perfectly acceptable to use a double lip seal…

Good question and the 2,000 lb working load limit (WLL) of the Erickson Horizontal E-Track such as the 5 foot #E19148 is the safe limit for the weight of the cargo the track is helping secure. To simplify, it is the cargo capacity that the track…

The Replacement Inner Slide for Demco DA91 Actuators #DM12808-97 you have pictured is only designed to work with the Demco Hydraulic Trailer Brake Actuator #8759121 or DA91 if you go by Demco's part numbers. It has a 3" x 3"…

You are correct that disc brakes require an actuator with higher psi pressure than what is required by drum brakes. Drum brakes need pressure of 1000-psi but discs need 1500 to 1600-psi. You can convert your Titan Surge-O-Matic Model 6 actuator to…

I have a solution to get your Mastercraft boat trailer up and running again, but unfortunately we don't have a cross reference chart for parts for Reliable surge brake actuators. Manufacturers of surge brake couplers simply didn't…

We carry 12 inch trailer brake assemblies for hydraulic setups. For a set that includes both sides we have the #AKFBBRK-7 which will be a great option. This kit is designed for axles with capacities between 5.5k and 7k.

I would use a protractor, see photo, place the protractor on the edge of the inside of one side of the trailer frame and the other inside edge of the trailer frame should be parallel with the 50 degree line on the protractor. Another way to verify…

We have 7k rated brake assembly sets like the part #AKFBBRK-7-D which are free-backing but none that have the hand brake option.

Pintle hitches are made to fit certain sized Lunette rings. The rings that we carry are only available in 2-1/2" or 3" diameter sizes. For example, the Curt Pintle Hook for 2" Hitches #C48004 fits lunette ring couplers with…

Yes, the adjustable channel for the Actuator #8759121 is centered on the actuator as opposed to it being used more for a "down" position like the Actuator #DM8759138 (see attached photos). I have attached some review videos for you…

I have attached for you below the install instructions for the Manual Reverse Lockout Kit for Demco Hydraulic Trailer Brake Actuators part #DM5939. If following these steps does not fix your issue please let me know which exact actuator…

You can use the manual lock out part #DM5939 to manually lock out the Demco DA91 actuator part #DM8164311 that you referenced.