Coupler Replacement for Boat Trailer with A50 Disc Brake Coupler

Question

Question:

These photos are of an easy loader boat trailer hitch. I’m trying to locate an A50 disc brake actuator. I read in your post that the A50 is no longer in production. Can you recommend a substitute? Thank you

asked by: Keith

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A50 Coupler
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Expert Reply:

Hey Keith, yeah the A50 coupler isn't made anymore so you would need to go with an all new setup like the Dexter DX7.5L A-60XL part # DX43FR which can be welded in place of what you have now.

expert reply by: Jameson C

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Answer 1

Yes, you can add a solenoid valve to your brake actuator on your trailer to prevent the brakes from locking up when in reverse as long as you have the standard 3/16 inch brake lines on your trailer. This valve will attach between the master cylinder…

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Answer 2

There is no difference between the Titan #T63FR and T4500600. The T4500600 is Titan's part number, and #T63FR is the part number we use. Same product, different part number.

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Answer 3

You can not, jonathon. The Dexter DX7.5L A-60XL Brake Actuator w Electric Lockout #DX43FR is designed to be used only with hydraulic disc brakes, so for drum brakes you'd need to use the Dexter DX7.5 Drop-N-Go Brake Actuator #099-175-00. This…

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Answer 4

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 5

The difference between an load range C and load range D tire in the same size is the capacity and psi rating. The two tires will still have the same dimensions and fit on the same wheel. The D rated tire has a higher capacity. For a ST175/80D13 like…

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Answer 6

The 5.30-12 tires, being wider, are going to make more contact with the road. This means that the noise, and heat build up will be higher than a 4.80-12 tire but the rolling resistance will actually be less because the tire is larger diameter. The…

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Answer 7

Load range B trailer tires are going to have a lower capacity than C load range tires. Basically that, psi rating, and the ply rating are the only differences. A higher load range tire would last a little longer than lower load ranges of the same…

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Answer 8

Since both a ST145/R12 size tire, like the Kenda Karrier S-Trail #AM10130, and a 5.30-12 size tire, like the Kenda K353 #AM10068, fit a 12 inch wheel, a ST145/R12 size tire can replace a 5.30-12 size tire. Keep in mind that these tires do have…

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Answer 9

The three most common lug stud sizes for a trailer are 1/2"-20, 9/16"-18, and 5/8"-18. In order to make sure you get the correct lug nuts you need to measure the lug studs on the trailer now as we have no way to look this up for…

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Answer 10

Even though I cannot comment specifically on the grease you used because I am not familiar with it, I can tell you the best grease for trailer bearings is a a grease with a rating of GC-LB, which just means it is made to withstand very high…

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Answer 11

The two sizes you mentioned are pretty similar and fit many of the same 15 inch wheels. The 205/75-15 fits rim widths of 5 inch to 6-1/2 inch whereas the 225/75-15 fits widths that are 5 inch to 6 inch. The 205 is 27.1 inches tall and the 225 is 28.4…

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Answer 12

Karrier and Loadstar are two different brand names used by Kenda. There's no difference in quality or function between the two brand names. For a ST175/80-13 Radial trailer tire in load range D, I'd recommend part #AM10210 if you're…

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Coupler Replacement for Boat Trailer with A50 Disc Brake Coupler

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