Parts Needed to Convert Dexter 8k Trailer Axles to Electric Over Hydraulic Disc

Question

Question:

Looking to up grade a two axle trailer to electric over hydraulic. The trailer has 8,000 lbs Dexter axles, with 8 lug 17.5 aluminum wheels. do you have a kit of some kind for this? thank you!

asked by: Greg P

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Expert Reply:

We have 8,000 lb axle disc brake kits from Kodiak that you could use like the part # K2HR89DD which fit your Dexter 8k axles. Then for an actuator kit the HydraStar actuators are the best around.

For a kit that comes with this actuator, brake lines, and a breakaway kit you'd want the part # HBA16-252-82. This comes with everything you'd need to install the actuator and get it going on your trailer with the Kodiak kit I mentioned.

expert reply by: Jameson C

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Answer 1

The Dexter E-Coat Disc Brake Kit #K71-635-93 is designed to fit an axle that uses an inner bearing #25580 (1.75" inner diameter), and an outer bearing #02475 (1.25" inner diameter). From what I could find out about the AL-KO 8k axles, these…

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Answer 2

To determine the size of the brake assemblies you need you have to measure the depth and width of the hub drum on the axle like what you see in the picture I attached. The most common size is 2-1/4 inch wide like the #T4071600-500 that you…

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Answer 3

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 4

Hey Richard, thanks for reaching out! The Dexter DX7.5 Drop-N-Go Brake Actuator #099-175-00 is a great option for a replacement actuator because it's a direct replacement for the common Model 60 actuators that were popular in the '90s.…

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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

There really isn't a particular maximum trailer weight that is used to determine when brakes need to be added to both axles of a tandem axle setup. While I do still recommend checking your local laws, I am also not aware of any general laws that…

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Answer 7

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 8

The recommended lug nut torque for your 7,000lb axle depends on a few factors like wheel size, stud size etc. Check out the attached photo which shows the torque specs for a variety of applications. I see you were looking at the Dexter Nev-R-Adjust…

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Answer 9

To find the load capacity for your axle you should look on the trailer VIN plate or sticker that lists the VIN number. The weight rating of the axle should be listed on that same plate or sticker. Also, the axle could have a tag or plate on it that…

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Answer 10

For your enclosed trailer application I have several suggestions for adding interior lighting that you can control directly via a switch. Since your current 4-pole trailer wiring does NOT include a 12V auxiliary power feed that could power inside…

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Answer 11

Based on the GVWR of your 2019 Jayco North Point 315RLTS it does seem like you have 7k axles. I recommend verifying this information to be sure. These axles typically use the #14125A outer and #25580 inner bearing found in the Timken #TMK92VR.…

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Answer 12

I'd be happy to help you out, John! To replace the brakes on your 5th wheel trailer you need the etrailer Electric Trailer Brakes #AKEBRK-7-SA which come with a self-adjusting feature so once you initially set them up you won't have to adjust…

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