Manual Reverse Lockout for Demco D91 Trailer Brake Actuators

Question

Question:

Is there a manual reverse lockout available for this coupler?DM8509612

asked by: Andy

0

Expert Reply:

Yes! The manual reverse lockout kit you are looking for is the # DM5939 for D91 Demco Hydraulic Trailer Brake Actuators.

I have linked the product and installation instructions to this page for your convenience.

expert reply by: Jackie C

0

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Answer 1

You can add a Manual Reverse Lockout Kit #DM5939 or Electric Reverse Lockout Solenoid Kit #DM5837 to the Demco Hydraulic Brake Actuator #DM8509612 to get the DA91 surge coupler with a reverse lockout.

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Answer 2

I recommend replacing your obsolete Atwood surge coupler with the Demco Hydraulic Brake Actuator #DM8509612. This coupler is rated for trailers up to 7,000lbs and connects to the vehicle with a 4" drop coupler accepting a 2" hitch ball so…

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Answer 3

Since we don't carry any master cylinders that are a fit for the GDC brand the best solution we'd have would be to replace the entire actuator. Your picture is a bit fuzzy, but the best match we have is the Demco Actuator part #DM8609502…

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Answer 4

Demco Hydraulic Drum Brake Actuator #DM8609502 is a standard 50-degree A-frame coupler-actuator rated for 8000-lbs trailer weight as you noted. It has a primed finish and is intended for weld-on installation. I went to our warehouse and measured the…

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Answer 5

Atwood is no longer making actuators at this time so there are no replacement shocks for their actuators anymore. Especially for ones as old as yours. So what you'd need to do is replace the surge actuator with a similar A-frame actuator like the…

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Answer 6

It appears your 2003 Jayco Qwest uses an A-frame tongue which would require a Demco Hydraulic Brake Actuator #DM8609502 to be welded on in place of your Atwood 85736 master cylinder. We do have the Demco Hydraulic Brake Actuator #DM72VR which bolts…

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Answer 7

If your trailer uses electric drum brakes then you do not need a brake actuator-type a-frame coupler like #DM8609502. Instead you can use a standard a-frame coupler like #CA-5210-B since your brakes' power will come from the signal carried on the…

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Answer 8

It sounds like you're using our system to look up both the tire and wheels as opposed to just wheels. Your ST215/75R14 tires will install on 14" wheels and out of our linked selection I recommend checking out the Aluminum Sendel Series T07…

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Answer 9

To replace the master cylinder on your tandem boat trailer you will need to know a couple of things. Since there can be no guarantee of a fit you will need to let me know the make of the master cylinder you currently have. Also, are you using disc or…

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Answer 10

Thanks for the picture of your actuator that you are wanting to replace. The Demco Hydraulic Actuator part #DM8609502 would be a great option as it is designed to fit A-frames like yours. It has an 8k capacity, designed for a 2 inch hitch ball, and…

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Answer 11

The Surge actuator you currently have installed is an older Atwood model. The cap for the brake fluid confirmed that for me once I saw it. Problem there is that Atwood is no longer in business and no replacements are available, unfortunately. We do…

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Answer 12

I do have a solution, but we do not have a bolt-on actuator for a 4" wide trailer tongue. What you can use is the #DM8759922 along with #DM12688-95. This brake actuator can be welded on top of the trailer tongue. You will need to take it to a…

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Manual Reverse Lockout for Demco D91 Trailer Brake Actuators

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