bing tracking image
  1. Trailer Brakes
  2. Kodiak
  3. Disc Brakes
  4. 5200 lbs Axle
  5. 6000 lbs Axle
  6. Rotor
Kodiak Disc Brake Kit - 12" Rotor - 6 on 5-1/2 - Dacromet - 5,200 lbs to 6,000 lbs

Kodiak Disc Brake Kit - 12" Rotor - 6 on 5-1/2 - Dacromet - 5,200 lbs to 6,000 lbs

Item # K2R526D
Our Price: $441.81
You Save: $38.20
Trailer Brakes
This item qualifies for Free Shipping
Shipping Weight: 58 lbs
In Stock
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

In Use/Installed

Need help with installation?
Locate installers near me
Trailer disc brake kit includes 2 assemblies with rust-resistant, Dacromet-plated rotors; calipers; and mounting brackets. Assemblies fit 5,200-lb to 6,000-lb axles and 15" and larger wheels. 12" Rotor has 6 on 5-1/2 bolt pattern. Lowest Prices for the best trailer brakes from Kodiak. Kodiak Disc Brake Kit - 12" Rotor - 6 on 5-1/2 - Dacromet - 5,200 lbs to 6,000 lbs part number K2R526D can be ordered online at or call 1-833-496-1390 for expert service.
  • All Info
  • Reviews (27)
  • Q & A (0)
  • Photos
  • Why etrailer?

Kodiak Trailer Brakes - K2R526D

  • Disc Brakes
  • 5200 lbs Axle
  • 6000 lbs Axle
  • Rotor
  • 14-1/2 Inch Wheel
  • 15 Inch Wheel
  • 16 Inch Wheel
  • Boat Trailer
  • Snow Trailer
  • 6 on 5-1/2
  • Kodiak

Trailer disc brake kit includes 2 assemblies with rust-resistant, Dacromet-plated rotors; calipers; and mounting brackets. Assemblies fit 5,200-lb to 6,000-lb axles and 15" and larger wheels. 12" Rotor has 6 on 5-1/2 bolt pattern.


  • Brake assemblies make it easy to change from an idler axle to a disc brake axle
  • Disc brakes deliver better performance than drum brakes
    • More consistent stopping, even at highway speeds
    • Dramatically shorter stopping distance
  • Maintenance costs are lower than for drum brakes
    • Fewer moving parts to maintain, repair and replace
  • Dacromet coating provides superior corrosion resistance for freshwater or saltwater use
    • 300- to 400-Hour salt-spray rating
  • Slip-on, cast iron, over-the-hub rotors
    • Fit over standard idler hub and are held in place by wheel and wheel bolts
    • Remove easily for maintenance
      • No need to replace entire hub-and-rotor assembly if only hub or rotor becomes damaged
    • Increase distance from hub face to hub face by 1/2"
    • Prevent heat-related damage with vented design that effectively dissipates heat
  • Cast iron calipers are self-adjusting for smooth, equal braking
    • Cast iron construction does not flex like aluminum
    • Low-drag design retracts piston farther than other calipers for a cooler-running brake
    • Stainless steel piston is 2-1/4" in diameter - 30 percent larger than other brands
      • More braking torque than the competition
    • High-performance, ceramic brake pads
  • Ductile iron mounting brackets provide strength and durability
    • Side-support design ensures that load is placed on bracket, not bolts
    • Extra embossing for additional thread contact ensures tight, secure mounting for caliper guide bolts
    • 5-Bolt brake flange mounting configuration - weld-on flange sold separately
  • Kit includes 2 full brake assemblies
    • 2 Dacromet-plated, cast iron rotors
    • 2 Dacromet-plated, cast iron calipers
    • 2 Dacromet-plated, ductile iron caliper-mounting brackets
    • 4 Stainless steel caliper-mounting bolts
  • Hydraulic brake actuator and lines (sold separately) are required for brakes to be activated
    • Requires psi rating of at least 1,500


  • Fits
    • Axle capacity: 5,200 lbs - 6,000 lbs
      • #42 Spindle
    • Wheel size: 15" and larger
  • Bolt pattern: 6 on 5-1/2"
  • Overall rotor diameter: 12"
  • Brake flange configuration: 5 bolt
  • 3-Year warranty

Disc Brakes

More and more people are switching their trailers over to disc brakes, and with good reason. Disc brakes deliver consistent braking - even at highway speeds - unlike drum brakes, which often show a substantial drop in braking torque at higher speeds. In addition, disc brakes offer a substantially shorter stopping distance than drum brakes.

Disc brake calipers have only one moving part, rather than the many found in drum brakes. This means that there are fewer parts to maintain, fewer parts to get damaged and fewer parts to have to repair or replace, thus reducing maintenance costs.

Over-the-Hub Rotor

Kodiak's slip-on, cast iron rotor makes it easy to convert an idler axle to a disc brake axle. Simply place the rotor over your hub. It is most often wheel bolt piloted for a loose fit and then held in place by the wheel itself. With a separate rotor and hub, you can easily repair or replace one element of your brake system without having to junk the whole thing.


Kodiak calipers are constructed of cast iron to prevent flexing. Less flex means more braking torque, resulting in smooth, even braking every time. The corrosion-resistant stainless steel piston is 30 percent larger than standard pistons, ensuring shorter stopping distance and increased torque. In addition, the unique low-drag design of Kodiak's calipers allows the piston to retract farther than in most standard models, giving you a cooler-running brake.

Mounting Brackets

Designed for axles with 5-bolt brake flange configurations, the included mounting brackets are made of heavy-duty ductile iron that is embossed to provide additional threading for guide bolts. The added thread strength ensures a tighter, more secure connection between the caliper and bracket. Another unique feature of Kodiak's brackets is the side-support angle, which guarantees that the load is carried by the bracket, rather than the bolts.

2/R-12-DDD-K Kodiak Disc Brakes - 2 Wheel Set - Rotor Only - Dacromet Finish - 5,200 lbs - 6,000 lbs

Replaces 2/RCM-12-SCAD (K2R526SC) and 2/RCM-12-DAC-K

Customer Satisfaction Score:

Customer Reviews

Kodiak Disc Brake Kit - 12" Rotor - 6 on 5-1/2 - Dacromet - 5,200 lbs to 6,000 lbs - K2R526D

Average Customer Rating:  5.0 out of 5 stars   (27 Customer Reviews)

Trailer disc brake kit includes 2 assemblies with rust-resistant, Dacromet-plated rotors; calipers; and mounting brackets. Assemblies fit 5,200-lb to 6,000-lb axles and 15" and larger wheels. 12" Rotor has 6 on 5-1/2 bolt pattern.


Bought Kodiak full kit of rotors, calipers, and primary hydraulic actuator from eTrailer for my triple axle boat trailer and perfect result. Competitor was couple dollars cheaper, but couldn't answer simple product questions and squirrely about delivery details, and I don't have patience for that crap. Let's go eTrailer!


Even came with brake pads!


I purchased this Kodiak Disc brake a little over a year now and had no problems so far. I check them each time I return home and they look fine. Good product.


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.

The brakes have been troublefree and make a huge improvement in highway and mountain driving
Steve D - 08/08/2017


Very fast resolving a problem excellent customer service


After one year on the trailer and a 450 mile road trip, installed parts are holding up well and foresee no problems for a couple of years.


Everything seems fine, my son installed last year as my trailer had been sitting outside not being used for a couple of years. Thank you!


Always a good experience!!


Great company! Everything was streamlined and processed very quickly with fast shipping. The website is among one of the best out there. Bought this Kodiak brake kit as a replacement for my boat trailer which had Tie Down parts and it fit perfect. Really helpful how to and review videos were available as well. I definitely recommend and am now a customer for life. Product delivered matched the description 100%.


no problems bleed easy had to remove one stud from dexter axel


Kodiak brakes are great product


Fast shipping! Exactly what I needed.


Excellent product. The brakes operate as they should.
etrailer ships quick and complete.


The staff at etrailer are great. We had a urgent need to get our trailer able survey boat to project site and realized the trailer was in need of repair when we trailered the boat. I called etrailer and they had all the parts needed and was able to ship quickly to us. The parts fit and work great. Thanks a lot!


I have been generally satisfied with all the items I have ordered from they are fast friendly and right on time


The brake kit came with everything I needed. It seems to be of good quality and is working great. Installation was very easy. Fast delivery and good customer service.


Product was great. Customer service was also outstanding. Phyllis helped me correct an order mistake that I made. I got the right parts and shipping was fast.


Product came on time, everything that I needed. Will certainly buy from etrailer again. 5 Star


Works perfect!


order came in perfect,easy to order the correct parts .
job went perfect .



Correct parts at fair price Thanks


totally happy with this product but the speedy delivery and their expertise on the phone ordering is second to none thankyou




Show More Reviews

See what our Experts say about this Kodiak Trailer Brakes

  • Inexpensive Corrosion Resistant Disc Trailer Brakes for Salt Water Use and a Boat Trailer
    The best possible material for saltwater applications is going to be stainless steel but since cost is a factor stainless would not be the way you would want to go. The next best thing is going to be a brake kit with Dacromet finish like # K2R526D. The Dacromet has a 400 to 600 salt spray rating but it is always a good idea to spray them of with fresh water after use in salt water. This kit is designed to fit over idler hubs with a 6 on 5-1/2 bolt pattern and 15 inch or larger wheels...
    view full answer...
  • Will Kodiak Disc Brake Kit Replace UFP Brakes On 5,200 Lb Torsion Axle
    The correct Kodiak Disc Brake Kit for a 5,200 lb axle is part # K2R526S for stainless or part # K2R526D for dacroment. In regards to compatibility, the brake mounting flange and spindle size are the only factors we can confirm. I don't foresee any issues but test fitting would be the only way to confirm. There are no exclusions for torsion axle trailers in general.
    view full answer...
  • Will Kodiak Disc Brake Kit # K2R526D Fit Torsion Axle
    Yes, the Kodiak disc brake kit part # K2R526D can be used on a torsion axle with a capacity between 5,200 and 6,000 lbs.
    view full answer...
  • Adding Hydraulic Disc Brakes And Surge Coupler To Trailer With No Brakes
    Since you want to install a surge disc brake system on the trailer you will not need a brake controller on your vehicle or a 7-way trailer connector. I have attached a helpful article that explains how to add brakes to your trailer you can check out. You will want to make sure the trailer has a brake mounting flange installed on the axle. If it does not then it will need to be installed by a qualified professional. Once you determine what size brakes are needed on your trailer you can...
    view full answer...
  • What Is Dimension Between Bolts On The Caliper On The Kodiak Disc Brake Kit, # K2R526D
    On the Kodiak Disc Brake Kit, # K2R526D, the distance between the center of one bolt to the center of the other bolt on the caliper is 5-3/4 inches. You would need to measure the distance of the bolts on your 2003 Mastercraft Trailer to know if this caliper will fit on your trailer. This caliper is made to work with the mounting brackets in the Kodiak Disc Brake Kit, # K2R526D. The Kodiak Disc Brake Kit, # K2R526D, is for 5,200 lbs. to 6,000 lbs. trailers with 15 inch and larger wheels...
    view full answer...
  • Determining Bolt Pattern for Kodiak Disc Brake Kit # K2R526D
    The 5-1/2 bolt pattern is part of the 6 on 5-1/2 mounting pattern that the Kodiak Disc Brake Kit # K2R526D mounts on, this will be the same as your wheel's bolt pattern. To determine what mounting pattern you have I have a Help Article for you to look at, that I've attached. Basically you need to determine if you have a even or odd number of lugs/posts on your hub. If you have 6 then that's even, since it's even you will want to measure from center to center of the lug directly across...
    view full answer...
    Image 1 for
  • Dimension From Center of Rotor to Outer Edge of Caliper on Kodiak Disc Brake Kit # K2R526D
    On the Kodiak Disc Brake Kit, part # K2R526D, the measurement from the center of the 12-inch rotor to the top of the caliper is about 6-3/4 inches. I am including a picture that will show that measurement. The overall diameter of the rotor is 12.16 inches and the caliper sits about 3/4-inch above the edge of the rotor.
    view full answer...
    Image 1 for
  • Recommended Disc Brake Kit For 5,200 Lb Axle
    We do offer several disc brake kits for 5,200 lb axles. One of the disc brake kits I recommend is part # K2R526D. This is designed for axles up to 5,200-lb to 6,000-lb and has a 12 inch rotor with a 6 on 5-1/2 bolt pattern. This kit includes the rotors, calipers, mounting brackets and mounting bolts. This is designed for a 5 bolt brake mounting flange. I have attached a link to our product page for the kits we offer. I have also attached a couple links to helpful articles about disc...
    view full answer...
  • Are Kodiak Disc Brake Trailer Calipers Low Drag Calipers
    I checked Kodiak and the calipers of their trailer disc brake kits like the part # K2R526D are low drag calipers.
    view full answer...
  • Are 4 Bolt and 5 Bolt Trailer Brake Flanges Cross-Compatible for Disc Brakes
    The 4 bolt brake mounting flanges are used on axles up to 3,500 lbs. If the axle is any larger then it will likely use a 5 bolt flange. There is one exception to this which is select 4,400 lb axles. That said, you cannot use 4 bolt brakes with 5 bolt flanges or vice versa. In order to choose the correct disc brake kit you'll need to know the axle capacity. The Kodiak Disc Brake Kit part # K2R526D for example is for 5,200 lb axles. I have attached a full list of options below.
    view full answer...
  • Differences Between Combined Hub & Rotor and Separate Hub & Rotor Brakes
    The only real difference between using an integrated hub/rotor combo and a separate hub and rotor combo is that if something happens to the rotor and or hub on the separate hub/rotor, you can just replace the damaged component and not the entire assembly. As long as the idler hub you have on your trailer now has a 6 on 5-1/2" bolt pattern, then I recommend using the Kodiak Disc Brake Kit part # K2R526D. If you already have the calipers and mounting brackets then you can use part # KR12D...
    view full answer...
  • Dimensions of the Kodiak Disc Brake Kit # K2R526D
    I went out into our warehouse to get all of the dimensions you requested. The inner diameter of the center hole for the rotor is 3.6 inches. The diameter of the bolt holes in the rotor are .52 of an inch. From the mounting surface of the rotor to the rotor center measures 2.25 inches. From the mounting surface of the caliper to the rotor center measures 3.15 inches. On the thicker side of the caliper the distance from the mounting flange to nearest portion of the rotor is 2.6 inches. On...
    view full answer...
  • Recommended Idler Hubs Compatible with the Kodiak 12" Disc Brake Kit
    The Kodiak Disc Brake Kit part # K2R526D is compatible with pretty much any idler hub with a 6 on 5-1/2" bolt pattern therefore you won't have any issues with the CE Smith Trailer Idler Hub Assembly part # CE13711. I have attached an install video I did on the brake kit for you as well.
    view full answer...
  • Which Idler Hub For Kodiak Slip On Disc Brake Kit With 10" Rotors and 5 Lug Bolt Pattern
    Since your customers boat trailer has 10" single piece rotors currently on it that tells me that they have a 3500lb axle and that you ordered the Kodiak Disc Brake Kit - 10" Rotor - 5 on 4-1/2 - Dacromet - 3,500 lbs # K2R35D. For a compatible idler hub to work with this two piece rotor kit you will want to go with the Kodiak Trailer Hub for 3,500-lb Axles - 5 on 4-1/2 - Galvanized Steel # Q-HUB84545 which has the 5 on 4-1/2" bolt pattern you were looking for and is designed specifically...
    view full answer...
  • Do Dexter and Kodiak Disc Brake Kits Use Same Mounting Brackets
    The mounting brackets of the Kodiak kit like the # K2R526D and the Dexter kit part # K71-647-648 locate the caliper relative to the hub in a slightly different position as well as use different bolt hole dimensions. Because of this the two kits aren't compatible with each other. The Dexter is much more offset towards the axle than the Kodiak, but that doesn't necessarily mean one is better than the other. Both of these brands do things differently but have a great reputation as being very...
    view full answer...
  • Electric Over Hydraulic Disc Brake Setup Recommendation for a Tandem Axle Trailer
    If you do have 6 on 5-1/2 inch bolt pattern wheels you would want to start with two sets of the Kodiak Disc Brake Kit # K2R526D. These will work on your 5 bolt mounting flange, have enough capacity as they are for 5,200 and 6,000 lb axles. I would strongly recommend you determine your bolt pattern before you buy anything though. Check out the FAQ article I attached on determining bolt patterns. For an actuator setup I would recommend the Titan BrakeRite I Plug and Play Electric-Hydraulic...
    view full answer...
  • Troubleshooting Bleeding Kodiak Disc Brake Assemblies
    I'm glad to hear you have tested the HydraStar Marine Electric Over Hydraulic Actuator w/ Breakaway and 7-Way RV Harness - 1,600 psi # HS381-9067 and found it to be working properly. The Kodiak disc brake calipers like kit # K2R526D have a two piece bleeder valve so if you only adjust the bottom section to attempt bleeding, that is the cause of your frustration. I've attached a couple photos to assist.
    view full answer...
    Image 1 for Image 2 for
  • Replacement Brake Calipers for EZ Loader TIAB 27-31
    I contacted EZ Loader and got some information on your trailers. They could narrow down that you have 12 inch rotors, but they could be from two different manufacturers, Kodiak or UFP. If you have Kodiak rotors, then Kodiak Disc Brake Caliper - Dacromet - 3,500 lbs to 6,000 lbs, # KDBC225DAC, are the right replacement calipers. If they are the UFP, then I won't have the calipers you need if we stay with factory parts. If you do not have Kodiak and want to make the switch, I can help...
    view full answer...
  • Disc Brake Kit for Converting Trailer with 84 Spindles to Electric Over Hydraulic Disc
    The Kodiak Disc Brake Kit # K2R526D wouldn't be ideal for you since you have an 84 spindle as this kit fits idler hubs that fit the 42 spindle. A better option would be the Kodiak kit part # K2HR35D which comes with hub/rotors that fit the 84 spindle. Then for an actuator kit that comes with everything needed plus an actuator with the best reaction time and reliability you'd want the Hydrastar part # HS381-9065.
    view full answer...
  • Can Dico Model 10 Surge Coupler be Used with Kodiak Disc Brakes
    If your Dico Model 10 surge coupler is designed for use with disc brakes then yes, it will work with Kodiak disc brakes # K2R526D. If your model 10 is designed for drum brakes then you can replace the master cylinder with # T4747100.
    view full answer...
  • Best Disc Brake Setup For A Tandem Axle Trailer With 10,000 Lb. Capacity
    In order to determine the correct disc brake setup to use on a 5 ton trailer, I would need to know the capacity of your trailer's axles. You can find this by locating the information tag placed on the center of the axle or by calling the dealer with your VIN. I have listed my disc brake recommendation for the following axle capacities: 3,500 lbs : 2 Kodiak Disc Brake Kit part # K2HR35D 5,200 lbs : 2 Kodiak Disc Brake Kit part # K2R526D 7,000 lbs : 2 Kodiak Disc Brake Kit part # K2HR712D Remember,...
    view full answer...
  • How to Determine Correct Replacement Disc Brake Rotor & Calipers For 5,000 lb Square Axle
    Thank you for the photo, that was helpful, and while there are no specific replacement parts for your trailer, there may be an option that will work. I say "may" because there aren't brake kits for 5,000 lb axles, and I'm not quite sure what the dimensions are of your brake mounting flange. If that flange has holes spaced 2-7/8 inches apart on center, and your hub has a 5 on 4-1/2" bolt pattern, then you can add a rotor and caliper brake kit for 3,500 lb axles, the Kodiak Disc Brake Kit...
    view full answer...
    Image 1 for
  • What Wheel Studs Do I Need for Disc Brakes on Trailer with 225/75-15 Size Tires
    According to the information I could find, your 2012 Heartland North Trail 26RLSS uses 225/75-15 size tires which means they should fit a 1/2"-20 stud like what we see with the tire/wheel combo # AM32669. If you're using a disc brake kit like the Kodiak Kit # K2R526D which mounts to a pre-existing idler hub then you'll want to make sure it uses the 1/2" studs, like what we find with part # KH42655S. If you can give me some more details about what size studs your aluminum wheels should...
    view full answer...
  • Will Dexter 5.2K Idler Hub Fit with Kodiak 12" Disc Brake Kit
    Yes, the Dexter Trailer Idler Hub Assembly # 8-213-5UC1-EZ is compatible with the Kodiak Disc Brake Kit # K2R526D. I actually don't think that the placement of your wheel/tire will be that much different than when you are using hub and drum assemblies. I went out to the warehouse and found that the idler hub measures 2.095" from the back of the hub to where the rotor will sit and the rotor is 0.3065" thick meaning that your wheel will mount about 2.4015" from where the back of the hub (or...
    view full answer...

< Previous

Do you have a question about this Trailer Brake?

  • Why

    At we guarantee:
  • Real product know-how.

    We make sure that the products we sell are what we say they are, and that they work the way they are supposed to work. Get real advice from a real person who has the knowledge and expertise needed to solve your problem.
  • Most detailed, accurate trailer brake information available.

    Because we take providing accurate product information seriously, we take our own detailed product photos, demo videos and installation videos, as well as verify measurements, instructions, and vehicle fit information.
  • Installations, made easy.

    We love helping people and have the most highly-trained customer service, hands-on experience, step by step videos and installation instructions.
  • Fast shipping.

    Your order is automatically routed to get out of our warehouse and to your door as quickly as possible. Receive free shipping on orders over $99.
  • Personalized service for life.

    We provide one-on-one, personalized service from the ordering process through the life of your product.
  • Trusted since 1946.

    We've been serving customers since our parts store first opened in 1946 and continue to be recognized by our customers, our vendors and third parties for exceptional service.
  • Returns Policy

    Need to return an item? No problem. Please read our Returns Policy for more information.

Info for this part was:

Employee Jackie C
Expert Research:
Jackie C
Employee Jameson C
Expert Research:
Jameson C
Employee Jeffrey L
Expert Research:
Jeffrey L
Employee Lindsey S
Updated by:
Lindsey S
Employee Adele M
Updated by:
Adele M
Employee Wilson B
Updated by:
Wilson B
Employee Mike S
Updated by:
Mike S
Employee Jeff D
Installed by:
Jeff D
Employee Conner L
Installed by:
Conner L
Employee Jacob T
Video Edited:
Jacob T
Employee Alan C
Video by:
Alan C

At we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.