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  1. Trailer Brakes
  2. DeeMaxx
  3. Disc Brakes
  4. 7000 lbs Axle
  5. Hub and Rotor
  6. 16 Inch Wheel
DeeMaxx Disc Brake Kit w/ Actuator for Triple Axle Trailers - 13" Hub/Rotor - 8 on 6-1/2 - 7K
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DeeMaxx

DeeMaxx Disc Brake Kit w/ Actuator for Triple Axle Trailers - 13" Hub/Rotor - 8 on 6-1/2 - 7K

Part Number: DE87NR
$5,238.29
Trailer Brakes
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etrailer Installation
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Triple-axle trailers put a lot of demand on your brakes, especially when you're towing heavy machinery at highway speeds. This DeeMaxx kit replaces drum brakes with hydraulic disc brakes for more consistent stopping power during long tows. Great Prices for the best trailer brakes from DeeMaxx. DeeMaxx Disc Brake Kit w/ Actuator for Triple Axle Trailers - 13" Hub/Rotor - 8 on 6-1/2 - 7K part number DE87NR can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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DeeMaxx Trailer Brakes - DE87NR

  • Disc Brakes
  • 7000 lbs Axle
  • Hub and Rotor
  • 16 Inch Wheel
  • Marine Grade
  • 8 on 6-1/2 Inch
  • DeeMaxx
  • 9/16 Inch Studs

Triple-axle trailers put a lot of demand on your brakes, especially when you're towing heavy machinery at highway speeds. This DeeMaxx kit replaces drum brakes with hydraulic disc brakes for more consistent stopping power during long tows.


Highlights

  • Complete Triple-Axle Disc Brake Conversion: Upgrades three 7K axles from drum to hydraulic disc.
  • Short, Smooth Stopping Power: Ceramic pads and vented rotors are designed for repeated braking at highway speeds.
  • Corrosion-Resistant Maxx Coating: Over 1,000-hour salt spray rating for marine and winter towing.
  • Fast 1,600 PSI EOH Actuation: Reaches 1,000 psi in 3/16 of a second for responsive braking.
  • 1-Piece Hub And Rotor Design: Helps limit moisture intrusion and supports consistent wear patterns.
  • Complete Triple-Axle Brake Line Kit Included: DOT-compliant hoses and fittings simplify installation.

Features to know about

True Disc Brake Performance For Triple Axle Trailers

DeeMaxx Disc Brake Assembly

Triple-axle trailers carry serious weight, and drum brakes can struggle with heat and consistency. This kit replaces them with DeeMaxx 13" integral hub-and-rotor assemblies designed for 7,000 lb axles. Vented rotors with drainage holes shed heat and moisture, while ceramic pads and stainless steel pistons provide smooth, controlled braking even at highway speeds.

Maxx Coating For Corrosion Resistance

DeeMaxx Disc Brake Coating and Drain Holes

If you launch in fresh or brackish water or tow through road salt, corrosion becomes a real concern. The Maxx coating on the hub-rotor, caliper, and bracket offers over 1,000 hours of salt spray resistance. Combined with built-in rotor drainage, this helps extend brake life and reduce rust compared to standard finishes.

Fast, Controlled Electric Over Hydraulic Braking

DeeMaxx Disc Brake Actuator

The included electric-over-hydraulic actuator converts your in-cab brake controller signal into hydraulic pressure up to 1,600 psi. It reaches 1,000 psi in just 3/16 of a second for quick response. The extruded aluminum housing helps manage heat, while upgraded seals and a sealed reservoir reduce contamination risk. A rotating brake line fitting allows flexible mounting on the frame or inside a compartment.

Flexible Brake Line Kit For Triple-Axle Trailers

DeeMaxx Hydraulic Brake Line

The included brake line kit is configured specifically for triple-axle trailers. DOT- and SAE-compliant rubber hoses are easier to route than rigid steel lines and work well with torsion axles and foldaway tongues. Brass tee and cross fittings, loom clamps, and mounting hardware help you secure and protect the system along the trailer frame.

Low Maintenance

DeeMaxx Disc Brake Assembly

Disc brakes eliminate many of the springs and internal parts found in drum systems. The 1-piece hub-and-rotor design reduces the chance of uneven wear from trapped moisture, and laser-etched bleeding instructions on the calipers simplify future service. Fewer moving parts mean less adjustment and more consistent braking over time.

Specs:

Brake Assemblies (Per Axle):

  • Axle capacity: 7,000 lbs
  • Rotor diameter: 13-1/8"
  • Bolt pattern: 8 on 6-1/2"
  • Piston diameter: 2-1/4"
  • Brake flange configuration: 5 bolt
  • Wheel bolt diameter: 9/16"
  • Inner bearing: 25580
  • Outer bearing: 02475
  • Inner race: 25520
  • Outer race: 02420
  • Grease seal: GS-2250DL

Electric Over Hydraulic Actuator:

  • Application: Higher volume unit for long triple- or quad-axle trailers with disc brakes
  • Maximum output pressure: 1,600 psi
  • Overall dimensions: 16-7/16" long x 3-5/8" wide x 6" tall
  • Mounting holes center-to-center: 16-7/8" long x 1-5/8" wide
  • Power: 12 V DC, minimum 30 amp circuit
  • Current draw at full pressure: 18-24 amps
  • Hydraulic port size: 3/16" inverted flare
  • Tank capacity: 28.7 oz, DOT 4 fluid
  • Wiring configuration:
    • Black: 12 V DC power
    • Blue: Brake controller
    • Yellow: Breakaway
    • White: Ground

Triple-Axle Brake Line Kit:

  • Main line: 20' rubber brake hose
  • (3) 6' 6" rubber brake lines
  • (2) 3' rubber brake lines
  • (3) 24" rubber brake lines
  • Brass 3-way T-fitting and cross fittings included
  • Hose inner diameter: 1/8"
  • Fitting size: 3/16"
    • Thread size: 3/8"-24
    • Thread length: 0.287"
  • Brake line clamps, mounting screws, and zip ties included

Required Components (Sold Separately):

  • EOH-compatible brake controller
  • Battery-powered breakaway kit
  • 7-Way trailer connector
  • Mounting hardware and wiring

Warranty:

  • Brake assemblies: 7-Year warranty
  • Actuator: 2-Year warranty


EOHA1600XL DeeMaxx G1600X EOH Actuator - Disc Brakes - 1,600 - 28.7 oz

1/DBI-7K-9-MAXX-KIT DeeMaxx Disc 13"Hub/Rotor Brake-9/16" Bolts-7K (non threaded)

DOT-TR20K DeeMaxx 20' Brake Line Kit - Triple Axle

MK-TR-7K-9-MAXX





Ratings & Reviews

4.6

27 reviews
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Triple-axle trailers put a lot of demand on your brakes, especially when you're towing heavy machinery at highway speeds. This DeeMaxx kit replaces drum brakes with hydraulic disc brakes for more consistent stopping power during long tows.

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Best upgrade to our 5th wheel. I will do this to every trailer I ever own. The install was straight forward if you have some mechanical knowledge and experience.



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Just traveled 800 miles after installing the disc brakes. Stopping distance is half of what it was. So pleased!



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Excellent customer service. All of my questions were answered. All of parts arrived the very next day. Parts appear to be of high quality.



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We had a rough start getting the right brakes for our Brinkley Z3100. However after ETrailer realized they made an error on the order they were right on top of it, doing everything they could do to make it right. Their people are great, kind, well informed in their products, and communicate very promptly. E Trailer will be my go to supplier for RV, and Trailer needs.
You will not be disapointed with their customer care!



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Easy installation, work so much better than stock drums. Some brake pad noise under lite braking.



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Angie Z was so helpful and a pleasure to work with.
Will definitely use them again.



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Great Service!! Fast delivery.



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The first order I made was incorrect due to my mistake, but Amy took care of it had the correct items sent out with the wrong items returned. Everything was very smooth.



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Really surprised how quickly parts came. One box looked pretty rough, but all parts appear to be there. Will know more after install and put a few miles on the trailer.



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One of the kits was missing all 5 mount bolts, had to run to Hardware store to get replacements. Bolt up is simple & strait forward. Packaging needs to be more substantial as the calpers were floating around in the box & had some scuffing damage.. maybe put some composite straps around boxing so they can be easier to Carry?



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The boxes arrived fully sealed, but there was significant rust on the races of two of the four hubs. I sanded the races to remove it and hopefully it won’t have long term impact. Otherwise, quality looks good and can’t wait to get them installed.



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Not sure if parts are correct. Brake calipers don't mount t at 3 or 9. Called etrailer they were no help. They told me to call the manufacturer.....



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These seem to be great brakes and well-made and my camper stops much better now. I had originally only given the product a one-star rating because of a customer service issue and a bracket problem. But I am changing it to a five-star review because the company president called me directly and worked out the problem. Not only do they have a great product but they are willing to make things right. Great company and great product, well worth the money. The best upgrade I have done to my fifth wheel so far. If you buy the kit for the 6000lb axle, and they send you the open bracket which cannot be installed as the instruction say at the 3 and 9 o’clock positions, call the company and they will send you the correct closed brackets.



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Etrailer to the rescue! Extremely high quality direct replacement for DeeMaxx EOH kit DE66AR offered on this site. Our original got damaged after a bearing failure. I actually cary a spare set of bearings which allowed us at a minimum to limp our RV home and avoid an expensive tow. Now I will replace the damaged parts.



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I have towed my 16,000lb fifth wheel over 12,000mi since installing the disc brake system. The braking power and control is vastly improved with the disc brakes over the drum brakes. I am certain that I avoided a major accident because of the disc brake system. The kit had everything I needed and the customer service was great.



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Have a 2024 Brinkley camper. Barley felt the drum brakes work. Camping in Colorado and the Black Hills was a little stressful with little brake help from the camper. Winter here. I've only took the camper on a test drive (20 miles) with the new disc brakes. They work awesome! All the brake power you need from the camper now.

I ordered the wrong brake kit at first. I needed 9/16" bolts instead of 1/2". Ashley from E-tailer got what I needed coming and gave ups the pickup label right after I called. Thank you Ashley!

As for the brake install. Fairly easy. Not fun, but easy. The hardest part was running and securing the brake lines. And maybe the wiring up the actuator. Instructions were great. Just a little intimidating the first time. Next time will take half the time to do. But I no plains for the next time! Also make sure your brake controller can change to elec. over hdy. Luckily my 2023 F350 did and was easy to change on the screen.

Thank you again Ashley!!


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See what our Experts say about this DeeMaxx Trailer Brakes


Info for this part was:

Employee Wilson B
Updated by:
Wilson B
Employee Matthew S
Updated by:
Matthew S
Employee Amanda M
Edited by:
Amanda M
Employee Dawn Z
Written by:
Dawn Z

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