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Kodiak Disc Brake Kit - 13" Rotor - 8 on 6-1/2 - Dacromet - 1/2" Bolts - 7,000 lbs
(172 reviews)
Price: $607.27
In Stock
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Kodiak Disc Brake Kit - 13" Rotor - 8 on 6-1/2 - Dacromet - 1/2" Bolts - 7,000 lbs
Part Number: K2R712DAC
In Stock
$607.27
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- Reviews (172)
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Kodiak Trailer Brakes - K2R712DAC
Highlights
- Upgrade to Stronger Braking: Disc system delivers smoother, more consistent stops and shorter braking distances than drum brakes.
- Resists Rust in Harsh Conditions: Dacromet-plated rotors, calipers, and brackets offer superior corrosion protection for freshwater or saltwater use.
- Bolts Right On: Slip-on, cast iron rotors fit over standard idler hubs—no need to replace the entire hub-and-rotor assembly.
- Stays Cool Under Load: Vented rotor design dissipates heat to prevent fade and extend component life.
- Runs Smooth and Even: Self-adjusting calipers with 2-1/2" stainless pistons apply equal pressure for reliable braking.
- Built for Heavy Towing: Rated for 7,000-lb axles with 13" rotors and 8 on 6-1/2 bolt pattern for 16" and larger wheels.
Features to know about
Upgrade to Confident, Consistent Stopping: 13" Dacromet Disc Brake Kit for 7,000-lb Axles
When you’re towing heavy and your old brakes start to fade, this Kodiak disc brake kit brings a big jump in performance. The 13" over-the-hub rotors fit 8 on 6-1/2 bolt patterns with 1/2" wheel bolts, delivering stronger, more consistent braking than drums even at highway speeds. Each cast iron caliper uses a 2-1/2" stainless steel piston and ceramic brake pads for high torque and smooth, equal braking every time.
Built to Beat Corrosion: Dacromet-Plated Rotors, Calipers, and Brackets
Saltwater and road grime can eat through unprotected metal fast, but these assemblies are built for it. Every major component—rotor, caliper, and ductile iron bracket—is Dacromet plated and rated for 300- to 400-hour salt spray protection. That means they’ll hold up through launches, wet roads, and storage without flaking or seizing up. It’s a marine-grade finish designed for lasting performance in fresh or saltwater use.
Cooler Running Under Load: Vented Cast Iron Rotors
Long downhill runs or heavy loads can build heat quickly. The vented cast iron rotors on this kit pull air through the core to keep temperatures in check and prevent heat-related damage. Less heat means less fade and longer pad life, so braking stays steady mile after mile.
DIY Ready: Slip-On Rotors and Bolt-On Brackets
You don’t have to rebuild your hubs to make the upgrade. The slip-on design fits over standard idler hubs and is held in place by your wheels and bolts—no redrilling or special tools required. The 5-bolt ductile iron brackets mount securely with included stainless steel caliper bolts, making it a straightforward install for anyone comfortable with basic trailer work.
Built Strong for Heavy Hauling: Complete Dual-Wheel Kit with Self-Adjusting Calipers
This kit includes two complete brake assemblies rated for 7,000-lb axles (#42 spindles) and wheels 16" or larger. The low-drag, self-adjusting calipers retract farther than standard models for cooler operation and less wear between trips. With fewer moving parts than drum brakes and a solid cast iron construction that won’t flex, it’s a durable setup designed for dependable stopping power season after season.
Specs
Weight and Capacity
- Axle capacity: 7,000 lbs
Compatibility
- Fits: Axle capacity: 7,000 lbs #42 Spindle
- Wheel size: 16" and larger
- Bolt pattern: 8 on 6-1/2"
- Wheel bolt diameter: 1/2"
- Brake flange configuration: 5 bolt
Dimensions
- Rotor diameter: 13"
Warranty
- Warranty period: 3-Year warranty
K71-2R-133-7-8-DDD Kodiak Disc Brakes - 2 Wheel Set - Rotor Only - Dacromet Finish - 1/2" Wheel Bolts - 7,000 lbs
Replaces 2/RCM-133-7-8-SCAD, 2/R-133-7-8-DDD-K, and 2/RCM-133-7-8-DAC-K
Customer Satisfaction Score:
93% were satisfied with this product
7% of customers were not satisfied
- etrailer mistake
- Wrong item was ordered
Ratings & Reviews
4.7
172 reviews
by:
Neil
02/21/2018
Ford
Transit Connect
Last year, I had to rebuild my Myco triple axel trailer that sits under my 47' Fountain. Needed all new hubs, bearings, brakes, etc. Bought everything from etrailer.com for a 1/3rd of the price that Myco wanted to charge me. Everything was perfect and their customer service was excellent when I had questions. Had some parts that got damaged in transit, but they shipped replacements immediately with no questions asked. The Dacromet brake kits have held up well a year later despite being used in salt water about a dozen times. Very happy with this product.
by:
Danny
05/22/2025
nice product good pricing ,quick shipping, only problem is the condition of the 2 boxes.
by:
Milan Auto Transport
06/20/2015
Outstanding customer service.Judy M.and Cathy T. called number of times to make sure that I was happy with my order!!! I buy a lot of things on the internet and no one even compare to the service etrailer provides. Thank you !!!
by:
Daniel
02/11/2025
I was excited to receive these brakes today to install them and I was unable to because both boxes were in so rough shape, almost opened, that not sure if it was bad packaging or very bad handling that one of the discs had a bent edge and one of the calipers had the 90 Degree Adapter Port with 1/8" NPT to 3/16" FIF bent (unable to screw in brake line.). Very disappointed.
by:
Jon
06/28/2021
Arrived as expected. Appear to be superior to the tie down calipers I'm replacing
by:
Andy
02/09/2024
Excellent parts, easy assembly.
by:
Brad
06/28/2023
by:
Kenneth
03/08/2023
GREAT SRRVICE!!
by:
Richard
08/27/2022
by:
Richard
03/30/2026
by:
Charles
09/15/2022
by:
Jason
04/27/2026
by:
Lismary
04/18/2023
by:
Philip
10/17/2022
by:
Bruce
02/03/2022
by:
Brian
03/15/2023
by:
Chris
05/06/2026
Perfect fit , This is a high quality brake system all it takes to make it last for years is a quick fresh water rinse when you get home . (Which the previous owner did not do) etrailer has the best customer service there is bar none !
by:
Joel M
07/25/2018
1996
Fleetwood
Discovery Motorhome
Great Products, not cheaply constructed, really easy to install, following simple instructions. Replaced 10 by 2 inch drum brakes. Looks awesome.
by:
Raymond S
12/27/2016
another successful project completed !!
PB blaster and Lubrimatic bearing marine lube (550 deg dropping point), highest on the market
PB blaster and Lubrimatic bearing marine lube (550 deg dropping point), highest on the market
by:
Steve D
08/08/2016
GMC
Yukon XL
I used this kit to add surge brakes to my 5200#-axle boat trailer. I bought it a couple months ago and it did not have brakes but really should have. The parts are well made and installed easily once I acquired the bolts I needed that weren't included. The description and pictures are not 100% clear that the mounting bolts to put the brackets on the trailer brake flange are not included. I'm not sure why they don't come with the kit but I ended up getting some 1.25" x 3/8" SS bolts to mount them. While the hat-style rotors are nice from a price and ease of replacement perspective, if your lug bolts don't have extra length, you would be better off getting the integral hub and rotor version. Finding longer lug studs for my 20 year old trailer and removing the old ones was a PITA. Had I known, I would have spent the extra $ for the integrated hub/rotor set. The calipers have bleeding screws on both top and bottom so they can be mounted on either side of the trailer. That's a nice feature as its one less thing to go wrong.
Once installed with new actuator coupler and brake lines, the brakes made a huge difference in towing the boat. The boat alone is 3000# and the trailer and gear probably add another 750 or so. It used to push my Yukon XL around when braking but now it tows smooth and easy.
etrailers was awesome to work with. Good communication via email and simple fast ordering and shipping. I will definitely use them for future trailers get needs.
Once installed with new actuator coupler and brake lines, the brakes made a huge difference in towing the boat. The boat alone is 3000# and the trailer and gear probably add another 750 or so. It used to push my Yukon XL around when braking but now it tows smooth and easy.
etrailers was awesome to work with. Good communication via email and simple fast ordering and shipping. I will definitely use them for future trailers get needs.
Steve D.
8/8/2017
The brakes have been troublefree and make a huge improvement in highway and mountain driving
by:
Jeff O.
01/19/2018
2011
Nissan
Titan
I have a 2011 Lund impact 1775 on a Shorelander single axle trailer which tips the scale around 2500# dry. I felt that surge brakes would be a smart investment and take some pressure off my Ford F150 to help stop that beast. I researched kits, actuators, calipers and rotors and decided on the Kodiak caliper and rotor kit and the Titan actuator. eTrailer had both in stock, a convenient hose kit to boot and fair price so I purchased the lot from them. Delivery was very quick and all of the hardware arrived together and in good shape. It took me one afternoon to assemble the actuator on my swing \-away tongue and another to install the calipers and rotors. There was one snag with the hose kit, in that one of the hoses was incorrect. I contacted Bryan at eTrailer and he was very accommodating; rushing the correct hose to me and then following up by phone when I received it. It took about two hours to finish the installation and I couldn't be more pleased, both with the quality of the products and the first-rate service! I have yet to bleed the system and take it out for a run but I don't anticipate any issues. I fully recommend eTrailer, their products and service!
Jeff O.
1/21/2019
I want to thank you again for your assistance in getting me the correct parts for my trailer brake installation. I took three major road trips with the boat last year and the trailer brakes worked flawlessly. The major reasons I installed the braking system were: the overall weight of the boat and trailer in relationship to my pickup 2006 F150 and braking performancesafety on wetslick roads. Both of these concerns were tested last year with wonderful results. I have been telling my friends, with similar trailer packages, to investigate your product. Thanks again,
by:
Hank B
05/16/2013
Yamaha
Kodiak
Nice quality caliper/Disc set.
Hard to find a setup that has rotors without the Hub and Disc as a one piece unit.
This Kodiak has a few configuration options for a separate Disc Rotor.
Only one problem is that the shipping container had no packing for the protection of the components.
The brake caliper hose fittings had broken through the boxes and were exposed outside the packaging. The seal plugs had fallen out of the brass caliper connections.
This is a less than acceptable and desirable way to protect the units.
Hard to find a setup that has rotors without the Hub and Disc as a one piece unit.
This Kodiak has a few configuration options for a separate Disc Rotor.
Only one problem is that the shipping container had no packing for the protection of the components.
The brake caliper hose fittings had broken through the boxes and were exposed outside the packaging. The seal plugs had fallen out of the brass caliper connections.
This is a less than acceptable and desirable way to protect the units.
Hank B.
5/16/2014
They are still excellent in performance and quality.
by:
Albert
04/06/2019
1996
Coachmen
Santara Motorhome
Straight forward installation although wish the installation nuts & bolts to mount the caliper brackets would have been included in the kit. Especially like the greater piston size and fact that they pull back after braking so the pads are not dragging on rotor when not braking.
Vastly improved braking and stopping distance over the old electric brakes.
Vastly improved braking and stopping distance over the old electric brakes.
Albert
4/6/2020
Been a year, brakes are so responsive and work so much better will never rely on the old way further. Still working great, never any problem and have never experienced any fade. Switch now and enjoy the added safety.
by:
Soutzing
09/25/2026
Kit is good quality but does not coming with mounting bolts for the brackets and nowhere does it say that it needs to be purchased.
Lazer S.
9/25/2026
Sorry about that. I will see if I can get that added to the page to make it clear. Typically the bolts from the previous brakes are used to install the brackets, but it should be made clear that they aren't included with the new parts. What kind of trailer did you install these on?
by:
Tommy
06/24/2023
Finished drum to disc brake conversion on my 1993 year model Bass Cat trailer. Installation went smoothly and the UFP-A60 Actuator replaced the obsolete Atwood Actuator. Shortened the outer member a bit and added a 1" flat bar to the bottom for welding of 4" channel trailer frame.
Tommy
7/2/2023
Disc brake installation went smooth and easy. It would have been better to have the adapter plate mounting hardware. One think to note about these Kodiak disc brakes, the bleeder valve is a two part valve. Be sure to open the 516 hex bleeder screw and not the 38 screw in bushingseat.
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Info for this part was:
Expert Research:
Mike L
Expert Research:
Jameson C
Expert Research:
Adam R
Updated by:
Lindsey S
Updated by:
Wilson B
Updated by:
Brian T
Updated by:
Hannah L
Updated by:
Mike S
Installed by:
Jeff D
Video Edited:
Jacob T
Written by:
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Gwendolyn Y.
2/27/2025
Hey Daniel. I'm sorry to hear that the package arrived in such rough condition. That is not what we want our neighbors to experience. I'm going to get this taken care of for you.