What Hydraulic Brake Actuator do You Recommend for My Military Trailer Model M1102?

Question

Question:

Do you guys know what size Brake actuator I would need for my M1102 military trailer? I went with a curt pintle hitch first and it was not strong enough to reverse and it twisted the pintle hitch. It’s a 3” Thanks in advance

asked by: Matt

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Expert Reply:

For the available specs I have available for your M1102 military trailer, the trailer itself has drum brakes with a maximum GVWR of 4200 pounds. The specs also indicate that the trailer already has free-backing plates.

With that information and the additional factor of a 3-inch wide tongue, I recommend the Demco Hydraulic Brake Actuator - Drum - Zinc - 2" Ball - 8,000 lbs # DM8609101. This actuator comes with zinc plating for corrosion resistance and includes a lever lock coupler mechanism for making an easy connection. With this system, you need a 2-inch ball like the # A-90 (if your mount requires a 1-1/4 inch diameter shank) or the # 40038 (if your mount requires a 1-inch diameter shank).

If the trailer does not have the factory free-backing brakes, I recommend the Hydraulic Brake Kit - Uni-Servo # AKFBBRK-7 for your setup.

expert reply by: Bob C

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Answer 1

Actuating couplers do not come with a minimum weight capacity, however, there could be some potential issues if you are towing a trailer with a weight well below the capacity of the coupler you are using. For example, I had a situation where a boat…

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Answer 2

Thanks for the picture of the coupler you have on your military trailer. Based on that I can tell what you have is a Model 6 and the same as the Titan part #T4093200 that you referenced so it would bolt right up.

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Answer 3

The Dexter Trailer Hub and Drum Assembly - 6,000-lb and 7,000-lb Axles - 12" - 5 Spoke Utility #8-174-5UC3 is the only hub that is compatible with those bearing inner diameters. This uses #15123 which have the same inner diameter as the #14125A,…

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Answer 4

The manual lockout on your Atwood 85778 surge brake coupler is there so that you can back up the trailer without the brakes locking up on you. Yes you can safely tow your trailer with the broken manual lockout, you just have to make sure you…

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Answer 5

Traditionally, trailer manufacturers did not use electric brakes on boat trailers because the brake magnet wiring and trailer wiring did not always have the best insulation or water protection. These days, more and more manufacturers are using…

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Answer 6

The only difference in the Demco Channel Tongue Trailer Couplers #DM16080-95 and #DM15931-95 is going to be the bolt pattern. One will have the 5-Bolt hole pattern and the other is going to have 4-Bolt holes. I have included images below showing the…

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Answer 7

All of that is not necessary. All you have to do is lock out the surge coupler so it cannot move in and out or disconnect the brake lines. By removing the old coupler you would have to remove the brake lines any way. A surge coupler can still be used…

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Answer 8

For a replacement you need the Titan Zinc-Plated Brake Actuator #T2477600. This is the Titan Model 10 which is the same as the Dexter DX12.5 you currently have on your boat trailer.

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Answer 9

The HydraStar Marine Electric Over Hydraulic Actuator w/ Breakaway and 7-Way RV Harness #HS381-9067 is designed to work with an aftermarket electric over hydraulic brake controller. This kit will require you to wire in the components using the wire…

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Answer 10

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Answer 11

Instead of using the Hydraulic Brake Kit #AKFBBRK-35-D which requires using 14"-16" wheels you should use the Dexter Galphorite Free-Backing Hydraulic Trailer Brake Assembly Right #T4423400 and Left #T4423500. These will fit with your…

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Answer 12

The difference is the trailer tongue size the coupler was designed to fit. The part #DX29FR is designed to fit a 3 inch by 4 inch straight tongue whereas the part #DX56FR is designed to fit a 3 inch by 5 inch straight tongue. Aside from that they are…

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