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 - Stainless Steel - 5,200 lbs to 6,000 lbs

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

Item # K2R526S
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Kodiak Disc Brakes - K2R526S
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Trailer disc brake kit includes 2 assemblies with rustproof, stainless steel rotors; calipers; and mounting brackets. Assemblies fit 5,200-lb to 6,000-lb axles and 15" and larger wheels. The 12" rotor features a 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 - Stainless Steel - 5,200 lbs to 6,000 lbs part number K2R526S can be ordered online at etrailer.com or call 800-298-8924 for expert service.
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  • Reviews (5)
  • Q & A (23)
  • Videos (2)
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Kodiak Trailer Brakes - K2R526S

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

Trailer disc brake kit includes 2 assemblies with rustproof, stainless steel rotors; calipers; and mounting brackets. Assemblies fit 5,200-lb to 6,000-lb axles and 15" and larger wheels. The 12" rotor features a 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
  • Stainless steel construction is durable and rustproof - ideal for extended marine use
    • 1,000-Hour salt-spray rating
  • Slip-on, 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
  • Stainless steel calipers are self-adjusting for smooth, equal braking
    • Stainless steel construction does not flex like aluminum
      • Absolute corrosion protection - ideal for extended marine use
    • 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
  • Stainless steel 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 Stainless steel rotors
    • 2 Stainless steel calipers
    • 2 Stainless steel 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
  • 6-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, stainless steel 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 stainless steel to prevent flexing and rust. 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, corrosion-resistant stainless steel 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-SSS-K Kodiak Disc Brakes - 2 Wheel Set - Rotor Only - Stainless Steel - 5,200 lbs - 6,000 lbs

Replaces 2/RCM-12-SS-K

Installation Details K2R526S Installation instructions

Video of Kodiak Disc Brake Kit - 12" Rotor - 6 on 5-1/2 - Stainless Steel - 5,200 lbs to 6,000 lbs

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Kodiak Disc Brake Kit Review

Speaker 1: Today we're going to be taking a look at the Kodiak line of Disc Brake Kits. Now, these kits are available in multiple configurations to fit multiple size axles. They're also available in several different finishes.A disc brake kit like this one from Kodiak is an excellent solution to give us good braking force. Typically, for this kit anyway, you're looking at like a 3500-pound axle. A lot of boat applications, you're hauling a boat sometimes miles and miles and miles, and without brakes on your trailer, you put a lot of unnecessary stress and strain on your truck. A braking kit like this allows us to take the stress, the strain off the braking system on our truck but also gives us a safer ride.In this application we've got a surge coupler at the front of the trailer, so as the truck slows it applies the hydraulic fluid pressure, squeezing our caliper together giving us excellent stopping abilities.

The rotors, calipers, and the ceramic pads are all automotive grade, so they're going to be made to the highest standards being sure we get excellent braking capabilities.Now when we compare a disc brake kit like this to a hydraulic drum-style brake, there are several advantages. Of course, we all know disc brakes tend to work better than drum brakes. They lock up less. We typically don't have the moisture being held inside. Especially in a marine application, that hub fills up with water, that moisture stays inside, causes some corrosion issues.

In this situation, once we bring these out of the water, everything's going to drain away. Air can get to it very readily and dry everything up.Another advantage we're going to get with this particular kit over the other disc brake kits available, the material composition is very corrosion-resistant. Our rotor, caliper, all stainless steel, plus they take that a step further, put a Dacramet finish all the way around. So that's going to work out really well, especially in a marine application like this, but also just on a utility trailer, keeping everything nice, corrosion-free. It's also going to be an excellent, excellent choice if you use it in a saltwater-type application.Something else you'll notice, pretty common on automobile applications, not usually on trailers, is going to be the ventilated rotor here.

So you've got two wear surfaces here and here. Those are going to be separated to allow air to flow freely in there and get everything cooled off to give us premium braking performance every time we hit those brakes.All right. With the bracket installed, we can move onto installing our rotor. That's one of the big benefits I like about this kit. You don't have the whole disc with the hub assembly in it.

So if you ever need to replace the disc, you're just replacing the disc, not your entire hub. This is going to fit right on our idler hub just like that, very common on automobile applications. They call this more like a top hat rotor where it it slides over your lugs, and then your wheel is actually going to hold that in and flush.Next, we'll move on to getting our caliper installed. Now the calipers can go either side. You don't have to have a left and a right. You can see we've got a bleeder screw on both sides. We want, of course, for our hydraulic connection to be facing in. Our slide bolts are going to come in this way just like that, and then these two portions are going to go on the back side of our bracket. So we slide that over, bring it in, and then we'll just push our bolts in, line them up with our holes and get them started. Now those do have loctite on them, so you'll just get them started a little bit, and then we'll use a 13mm socket and snug them on down.Now that we've got those snugged down, we'll use our torque wrench and we're going to torque them down to the specifications listed in the instructions. With our brake assemblies in place, it's time at this point to install our tire back on. Now, we do recommend using a torque wrench and torquing these down properly per the 1/2" stud application. Something we've seen, especially in the automobile industry, if you tighten these lug nuts down too much, you might cause that rotor to warp a little, decreasing your performance. That's going to complete our look at the Kodiak line of Disc Brake Kits.

Customer Reviews

Kodiak Disc Brake Kit - 12" Rotor - 6 on 5-1/2 - Stainless Steel - 5,200 lbs to 6,000 lbs - K2R526S

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

Trailer disc brake kit includes 2 assemblies with rustproof, stainless steel rotors; calipers; and mounting brackets. Assemblies fit 5,200-lb to 6,000-lb axles and 15" and larger wheels. The 12" rotor features a 6 on 5-1/2 bolt pattern.

- K2R526S

Kodiak brakes are great. I paid for the high quality stainless steel brakes and wheel assemblies that were well worth it. It’s been a year of use and several road trips with salt water boat launches on the ramps. So far all is well with a end of year service to ensure a good next season. I use Timkin bearings as well. Cheers to Kodiak for the build for the product and etrailer for the discounted price supply. etrailer is a wealth of talent with good knowledge on the products I have purchased so far for my trailer renovations. Thanks to them 744466

- K2R526S

I upgraded my trailer's totally rusted out (after only two years) brakes with this kit. It's now 8 years later and they still look and work like new. If you use your trailer in salt water then these should be put on when new! 546223

- K2R526S

Greg S and ALL the etrailer staff is top-notch. The product is awesome, fitment is perfect...I really wish the kit would have come with twelve new stainless bolts and lock washers for the brackets but it didn’t. 513235

- K2R526S

Cathy helped me find the right brake parts for my trailer. She got it shipped to me on time and delivered when I needed it most, right before an out of town trip. She is extremely personable and is an awesome example of what customer service should be. I hope her boss reads this and gives her a nice big bonus !!!! She deserves it. 417089

- K2R526S

A little more money than aftermarket but well worth the money 76548


Ask the Experts 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...
  • Items Needed to Convert Trailer to EOH Disc Brake Operation
    The 6K-rated disc brakes we have are shown on the linked page. All use the 6-on-5-1/2 bolt pattern and we have both rotor-only or hub-with-rotor type kits. You also have choices in the type of material/finish used for construction. We have higher-end full-stainless-steel kits like # K2R526S as well as more cost-effective e-coat kits. A great way to get into all this is by checking out the linked article that covers the whole process of adding EOH (electric-over-hydraulic) to a trailer....
    view full answer...
  • Suitable Hydraulic Coupler for Kodiak Disc Brake Kit Part # K2R526S
    The Titan Brake Actuator with Electric Lock Out, part # T4745720 would work well with the Kodiak Disk Brake Kit you referenced. The actuator, which carries a 6000 lb capacity, features an adjustable coupler which accommodates 1-7/8, 2 inch and 50mm trailer balls. The included electric reverse lock out solenoid is protected from damage by an included cover.
    view full answer...
  • The Location of the Electric Lockout Solenoid with Hydraulic Disc Brakes
    The Kodiak Disc Brake Kit, # K2R526S, do not have a lockout solenoid on them. The lockout solenoid mounts on the brake actuator and the normally open or normally closed function depends on the solenoid being used. For example, we offer the Titan Solenoid Valve, # T4748800, which is a normally open solenoid. This valve stays open, until it receives power (for backing up situations). The solenoid closes preventing pressure on the brake lines. At this time we do not offer a normally closed...
    view full answer...
  • Available Trailer Suspension Spring Hangers, Wet Bolts and Bushings
    We do offer all trailer suspension components including leaf spring hangers, suspension bolts, bushings, etc. All of these are shown on the linked page. I also linked the specific pages for hangers like # 28-5, wet bolts like # TRFA71063 and bushings like # TRFA71063. These item are not weight-rated so you can simply select them by their dimensions. Also included is an article that covers the process of converting a trailer to hydraulic disc brake operation. A link to all disc brake...
    view full answer...
  • Can 7000 lb Disc Brakes be Used In Place of 6,000 lb Disc Brakes
    There would be a slight advantage to using 7,000 lb brakes in place of 6,000 lb brakes. The 7,000 lb brakes would not have tow work quite as hard reducing heat build up, but for the weight of your trailer, the 6,000 lb brakes should be able to handle the job well. The disadvantages that you listed are correct as well. When it comes to disc brakes, 7,000 lb brake assemblies will cost more than the 6,000 lb brakes and all of our 7,000 lb disc brake assemblies come with an 8 on 6-1/2 inch...
    view full answer...
  • Does Kodiak Disc Brake Kit Include Bearings Races And Seals
    The Kodiak Disc Brake Kit, part # K2R526S you are referencing does not come with the bearings, races, or seals. This is a stainless steel brake kit with a 12 inch rotor and a 6 on 5-1/2 bolt pattern. This is designed for 5,200 to 6,000 lb axles and 15 inch or larger wheels. Since the spindle on your axle can be different sizes we will need to know what bearings you currently have. The simplest way is to find the numbers on the bearing and seal. The number can normally be found stamped...
    view full answer...
  • Brake Actuator Without Electric Lockout for Trailer with Kodiak Disc Brake Kit # K2R526S
    I recommend taking a look at the Titan Swing-Away Actuator with Manual Lockout, 7,500 Pounds, # T4839100. This hydraulic actuator synchronizes the trailer brakes with those on the tow-vehicle and no electrical wiring is required. Now for the brake lines. There really would be no need to change them because your current lines will support the increased psi.
    view full answer...
  • Will Kodiak Stainless Steel Disc Brake Kit Fit on 2015 EZ Loader Trailer with UFP Brakes
    The Kodiak Disc Brake Kit # K2R526S will work find to replace the UFP kit you have on your trailer now. This kit is designed to fit the same standard brake mounting flange/hub dimensions as what your UFP kit has so this will fit and work great.
    view full answer...
  • Replacement Disc Brake Assemblies for Boat Trailer Used in Salt Water
    For a saltwater marine environment stainless steel brake components are the best possible option for durability and corrosion resistance. Although they will cost more up front they will last longer than any other type. Even with stainless, it is important to rinse off the brakes (and the rest of the trailer) after exposure to salt water. The link provided will take you to our main page for caliper and rotor kits. You can click on your trailer's axle weight rating to see the approriate...
    view full answer...
  • Does Kodiak Disc Brake Kit K2R526S Come With Brake Pads
    The Kodiak Disc Brake Kit # K2R526S does come with brake pads. When it is time to replace those brake pads, you will want part # K225CP. The disc brake kit will fit wheels 15 inches and up, with axles rated 5,200 to 6,000 pounds. The rotor will fit over 6 on 5-1/2 inch, standard idler hubs that are held in place by the wheel and then use lug nuts. As long as you have a standard hub, it is not necessary to replace your hub to use these disc brakes. If you are looking to replace your...
    view full answer...
  • Diameter of Inner Bore on Rotors in Kodiak 6 on 5-1/2 Disc Brake Kit K2R526S
    An add-on rotor-only disc brake kit for a 6-on-5-1/2 bolt pattern trailer hub, such as kit # K2R526S which is rated for 5200-lb and 6000-lb axles, has a slip-on rotor with an inner diameter of 3.65-inches. I took this measurement on this kit's rotors using a precision digital caliper. You'll want to choose a rotor-only kit for the rating of your axle. This is usually found on the main sticker or plate on the axle beam itself; or the axle rating may be indicated on the trailer's main...
    view full answer...
  • Parts Needed to Add a Third Brake Axle to a Trailer
    To tee into your current brake setup you would need the part # T0778500. This would need to get added to the main brake feed line of your trailer. From there you would want to use a single axle trailer brake line kit like the part # DM5402. Basically everything from this kit would get used minus the long brake line. Basically the tee that you add in will go to the new brake assemblies and then using a flex line like part # BH-3MFS-1 back to the original axle lines. For stainless rotors...
    view full answer...
  • Brake Flange Required to Mount Kodiak Disc Brake Kit K2R526DS
    For replacement brake mounting flanges to allow installation of the Kodiak Disc Brake Kit # K2R526DS you can use the matching 5-bolt flange part # 4-44-1. Welding on a new brake flange requires a specialized jig and excellent welding skills to ensure the flange is straight and concentric with the spindle. This is usually best left to a professional.
    view full answer...
  • Parts Needed for Electric to Disc Brake Conversion on 2019 Grand Design Reflection Travel Trailer
    We have disc brake conversion kits for your 2019 Grand Design's 5200-lb axles that are shown on the linked page. A complete hub-and-rotor kit like # K2HR526D completely replaces your existing hubs with new 6-on-5-1/2 hub/rotors and includes the calipers and pads. To select the right kit you'll need to match the wheel bolt pattern, wheel size and the hub bearing set to your existing setup. Disc kits for any given axle weight rating come in various finishes. An all stainless-steel kit...
    view full answer...
  • Parts Needed to Add Disc Brakes to Lippert 6k Axles
    Since we know you have 6k Lippert axles I will be able to help you pick out exactly the disc brake kits that will fit. The Kodiak kit part # K2HR526D will fit your trailer axles and will work well. This is a Dacromet coated kit that will do a great job resisting rust. If your trailer has hydraulic drum brakes currently the brake lines you currently have will fit and work well with either kit. If not for a brake kit that is 18 feet in length we have the part # 18TA-BLKIT. I attached...
    view full answer...
  • Recommend Disc Brake Kit For 5,200 lb Tandem Axle Trailer
    I do have all the parts that you would need to install disc brakes on your 5,200 lb tandem axle trailer, but not as a kit. First, you will need the Kodiak Disc Brake Kit, part # K2R526S, which is a stainless slip-on disc brake kit. We also have a hub replacement disc brake kit, in a dacromet coating, part # K2HR526D. To use part # KSHR526D, you would need to pull apart your hub and make sure you have the correct bearings, races and seals. You will also need to have a 6 on 5-1/2 bolt...
    view full answer...
  • Availability of 6-Lug Trailer Disc Brake Kits
    We do offer disc brake kits, both complete kits that include a coupler and also brake-only kits with a 6-bolt lug pattern like those shown on the linked page. These 6-lug kits fit 5200- and 6000-lb axles. You can choose from several finishes and these vary considerably in cost. A basic raw-finish kit costs less than a Dacromet-finish kit like # K2HR526D, which in turn costs far less than a stainless steel kit like # K2R526S. Please refer to the linked page to see all 6-lug kits. You...
    view full answer...
  • Diameter of Kodiak Rotor Flange
    The inside flange diameter of the rotor from the Kodiak Disc Brake Kit # K2R35DS measures 3-11/16" and the outside diameter of the Dexter Trailer Idler Hub # 84655UC1 measures 2", though please be aware that you should not drill a new wheel bolt pattern on the rotor; doing so would compromise the integrity of the rotor and would not be safe. What you need to do instead is either use a 12" rotor with a 6 on 5-1/2" bolt pattern such as # K2R526S or get a new idler hub assembly with a 5...
    view full answer...
  • Replacement Disc Brake Kits and Brake Parts for Ranger Boat Trailer
    We can help you with either new disc brakes or with replacement parts for your existing disc brake setup on your Ranger boat trailer. Either way you will want to confirm the axle rating of the single or tandem axles on the trailer since complete brakes and some brake parts are specific to a particular axle weight rating. The trailer's main sticker may have axle ratings indicated or sometimes on the axle beam itself there will be a plate or sticker with its specific weight capacity. If...
    view full answer...
  • Adding Disc Brakes to Tandem Axle Trailer
    We can help you with the project of adding hydraulic disc brakes to your 7K-rated tandem axle trailer. In fact we have a complete help article on the subject that I have linked for you. This includes links to products including disc kits, actuators and brake lines. So long as your existing brake lines are okay you should not need to replace them just to make the changeover to discs. If you are going to run the discs only on the one axle that has brake flanges you will want to match the...
    view full answer...
  • Tandem Axle 5,200 Brake Rite Disc Brake Kit Recommendation
    I do have all the parts that you would need to install disc brakes on your 5,200 lb tandem axle trailer, but not as a kit. First, you will need the Kodiak Disc Brake Kit, part # K2R526S, which is a stainless slip-on disc brake kit. We also have a hub replacement disc brake kit, in a dacromet coating, part # K2HR526D. To use part # KSHR526D, you would need to pull apart your hub and make sure you have the correct bearings, races and seals. You will also need to have a 6 on 5-1/2 bolt...
    view full answer...
  • Kodiak Disk Brake Kit Recommendations for Corrosion Resistance on an Aluminum Boat Trailer
    The dacromet and stainless combination of the Kodiak Brake Kit part # K2HR526DS would work very well to fight corrosion. For the ultimate in corrosion resistance that would be my recommendation for if your boat trailer will see saltwater I would recommend the entirely stainless kit Kodiak Disc Brake Kit part # K2R526S.
    view full answer...

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Info for this part was:

Expert Research:
Mike L
Expert Research:
Michael H
Expert Research:
Jameson C
Expert Research:
John H
Expert Research:
Adam R
Expert Research:
Jeffrey L
Written by:
Lindsey S
Installed by:
Jeff D
Video Edited:
Jacob T
Video by:
Alan C
Updated by:
Sarah W
Updated by:
Hannah L
Updated by:
Mike S

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