Replacement Actuator For An Atwood 171

Question

Question:

Which one can I use with reverse lock out for backing it up into my barn??

asked by: Dale

0

Expert Reply:

The Demco Hydraulic Brake Actuator # DM72VR will replace your Atwood 171 actuator. This surge brake actuator will work for drum brakes and has no reverse lock out but is recommended that you equip your trailer with free-backing brakes so you can drive in reverse without the actuator triggering your trailer's brakes.

The actuator has a gross towing weight up to 7,000 pounds and has a maximum tongue weight up to 700 pounds. The mounting has to have a 3 inch wide trailer tongue.

If you could reach back out to me with what weight capacity axles you have I will be able to find you the correct free backing brakes for your trailer.

I attached a review video link below.

expert reply by: Noah E

0

Answer 1

There isn't a master cylinder replacement we can offer that will fit an Atwood surge coupler since Atwood had a unique design and unfortunately isn't around any more. Best solution is a new actuator like the part #DM72VR for drum brakes or…

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Answer 2

The majority of electric a-frame trailer tongue jacks will have a 3,500 lb weight capacity which is most likely what your old Atwood jack is. If not, the 3,500 lb capacity will be more than enough for you because it only needs to be rated for the…

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Answer 3

I don't have a way to look up what type of actuator is on your trailer but there is definitely a chance it can back up a hill without brakes locking up. If you can't find a manual lockout you might have an electric lock out which you can…

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Answer 4

The 4 mounting bolts on the Dexter Hydraulic Trailer Brake Kit - Uni-Servo - 7" - Left and Right Hand Assemblies - 2.5K #23-398-399 you were looking at are 2-3/4" apart on center or 4" apart when measured diagonally and will fit your…

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Answer 5

The correct replacement for Atwood 7" x 1-3/4" Hydraulic Drum Brakes is the Dexter Hydraulic Trailer Brake Kit part #23-398-399. If you are having trouble removing the old brakes, I recommend applying heat but you can cut the nuts off worst…

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Answer 6

Email me back with them and I can see what would work best.

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Answer 7

Are you absolutely sure the tongue is 3-1/4 inches wide and not 3 inches wide? 3 inch wide is a very common size and is what the Demco Surge Actuator part #DM72VR is designed to fit.

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Answer 8

I can understand how this can be a bit confusing. Brake actuators, like the Demco Hydraulic Trailer Brake Actuator, #DM72VR, with no lock-out are typically more economical and are perfect for trailers equipped with free-backing brakes because the…

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Answer 9

The Demco Hydraulic Brake Actuator #DM72VR is the best replacement for your Atwood 82543. As this surge brake actuator does not have a reverse lockout you will need either free backing brake assemblies or a Solenoid Valve for Titan Brake Actuators…

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Answer 10

The Replacement Master Cylinder Assembly #T4395100 will not work to replace your Atwood master cylinder model 85841. Since replacement parts for your actuator are obsolete, your only option is to replace the entire actuator assembly. The Demco…

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Answer 11

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 12

The Demco Hydraulic Brake Actuator part #DM72VR is a great option to replace an Atwood 82543. That said, it does not come with any sort of reverse lockout feature therefore in order to reverse without the brakes locking up you will either need to add…

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