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DeeMaxx Disc Brake Kit w/ Actuator for Triple Axle Trailers - 13" Hub/Rotor - 8 on 6-1/2 - 7K
(29 reviews)
Price: $5,238.29
In Stock
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DeeMaxx Disc Brake Kit w/ Actuator for Triple Axle Trailers - 13" Hub/Rotor - 8 on 6-1/2 - 7K
Part Number: DE87NR
In Stock
$5,238.29
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We'll connect you with nearby partnered installers who know this exact setup.
- All Info
- Reviews (29)
- Q & A (0)
- Photos
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
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
If you launch in fresh 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
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
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
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
29 reviews
by:
Jerry
03/23/2026
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!!
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!!
by:
Shawn
04/18/2026
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.
by:
Greg
11/15/2025
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.
Kate F.
11/19/2025
And it looks like you are doing it all with a smile on your face Greg! Glad to hear you were prepared with the extra set of bearings as well. etrailer is lucky to have you as a neighbor (customer)! So where are you headed for the next adventure?
by:
Matthew
09/21/2026
Loved the product. Only reason I marked it down was shipping method. Packaging was inadequate as they all showed up severely damaged. One bark was damaged although not bad enough to send it back.
by:
Dale
04/30/2026
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.
by:
Rob
05/15/2026
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.....
by:
Mike
04/26/2026
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?
by:
Joe C
06/07/2026
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.
by:
Bob
04/11/2025
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.
Gwendolyn Y.
4/14/2025
That doesn't looks good at all, Bob. If you run into any issues before or after install, please let me know and I can help.
by:
David
01/18/2025
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.
David
1/19/2026
The best upgrade that I could’ve made to my fifth wheel was to get rid of those drum brakes and converted over to electric over hydraulic
Kate F.
1/19/2026
@David It really is amazing the difference that it makes David! What trip are you looking most forward to this year?
by:
Jose
06/27/2026
Great Service!! Fast delivery.
by:
Matt
05/20/2026
Angie Z was so helpful and a pleasure to work with.
Will definitely use them again.
Will definitely use them again.
by:
Steven
07/31/2025
Easy installation, work so much better than stock drums. Some brake pad noise under lite braking.
by:
Robert
03/15/2025
Excellent customer service. All of my questions were answered. All of parts arrived the very next day. Parts appear to be of high quality.
Gwendolyn Y.
3/21/2025
Hey Robert! I'm glad that we had the answers you were looking for! Have you been able to install them yet?
by:
Greg
04/01/2025
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!
You will not be disapointed with their customer care!
by:
Jim
05/03/2025
Just traveled 800 miles after installing the disc brakes. Stopping distance is half of what it was. So pleased!
by:
Michael
06/21/2024
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.
by:
Eric
03/24/2026
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Lawrence
03/26/2026
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Mark
05/04/2026
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Cj
09/22/2026
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Larry
08/11/2025
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David
08/11/2026
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Austin
06/22/2026
by:
Brad
08/05/2025
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Edited by:
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Jonathan H
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Lazer S.
4/7/2026
Glad to hear they are working better than your previous brakes, Jerry! Disc is definitely the way to go. ^___^ I will let Ashley know they are much better as well! What's the next trip you have planned to really test them out?