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Kodiak Disc Brake Kit - 13" Hub/Rotor - 8 on 6-1/2 - Dacromet - 7,000 lbs

Kodiak Disc Brake Kit - 13" Hub/Rotor - 8 on 6-1/2 - Dacromet - 7,000 lbs

Item # K2HR712D
Our Price: $667.74
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Trailer disc brake kit includes 2 assemblies with Dacromet-plated rotors, calipers and mounting brackets. Assemblies fit 7,000-lb axles and 16" and larger wheels. The 13" rotor features an 8 on 6-1/2 bolt pattern. 1-800-940-8924 to order Kodiak accessories and parts part number K2HR712D or order online at Free expert support on all Kodiak products. Great prices and Fastest Shipping for Kodiak Disc Brake Kit - 13" Hub/Rotor - 8 on 6-1/2 - Dacromet - 7,000 lbs. Accessories and Parts reviews from real customers.
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  • Reviews (18)
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Kodiak Accessories and Parts - K2HR712D

  • Trailer Brakes
  • Disc Brakes
  • Brake Assembly
  • Kodiak
  • Hub and Rotor Assembly
  • LH
  • RH
  • 7000 lbs
  • 8 on 6-1/2

Trailer disc brake kit includes 2 assemblies with Dacromet-plated rotors, calipers and mounting brackets. Assemblies fit 7,000-lb axles and 16" and larger wheels. The 13" rotor features an 8 on 6-1/2 bolt pattern.


  • Brake assemblies make it easy to upgrade from drum to disc brakes for better performance
    • 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 plating provides superior corrosion resistance for freshwater or saltwater use
    • 300- to 400-Hour salt-spray rating
  • Integral hub-and-rotor assembly is 1 piece
    • Minimizes lateral runout to prevent warping
    • Provides smooth ride with balanced hub and rotor
    • Uses industry-standard bearings and seals (sold separately) - races included
    • Prevents heat-related damage with vented design that effectively dissipates heat
    • Includes wheel studs - lug nuts sold separately
  • 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 2-1/2" 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 rotor-and-hub assemblies
    • 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: 7,000 lbs
      • #42 Spindle
    • Wheel size: 16" - 17"
  • Bolt pattern: 8 on 6-1/2"
  • Rotor diameter: 13"
  • Brake flange configuration: 5 bolt
  • Wheel stud diameter: 1/2"
  • 3-Year warranty

Bearing, Race and Seal Information

  • Bearings (sold separately)
    • Inner bearing: 25580
    • Outer bearing: 14125A
  • Races (included)
    • Inner race: 25520
    • Outer race: 14276
  • Seal: RG06-070 (sold separately)
    • Inner diameter: 2.250"
    • Outer diameter: 3.376"

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.

Integral Hub-and-Rotor Assemblies

The integral hub-and-rotor is made from cast iron, matching SAE specifications. Cast iron is ideal for high-temperature operations and offers a favorable friction coefficient to ensure adequate stopping power. Kodiak's rotors are vented to effectively dissipate heat, dramatically reducing the incidence of heat-related damage. Furthermore, machined disc brakes minimize the chance of contamination between the hub and rotor, resulting in excellent performance and long life.


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/H-133-7-8-DDD-K Kodiak Disc Brakes - 2 Wheel Set - Integral Hub and Rotor - Dacromet Finish - 1/2" Wheel Bolts - 7,000 lbs

Replaces K2HR712SC and 2/HRCM-133-7-8-DAC-K

Installation Details K2HR712D Installation instructions

Customer Satisfaction Score:

Customer Reviews

Kodiak Disc Brake Kit - 13" Hub/Rotor - 8 on 6-1/2 - Dacromet - 7,000 lbs - K2HR712D

Average Customer Rating:  4.7 out of 5 stars   (18 Customer Reviews)

Trailer disc brake kit includes 2 assemblies with Dacromet-plated rotors, calipers and mounting brackets. Assemblies fit 7,000-lb axles and 16" and larger wheels. The 13" rotor features an 8 on 6-1/2 bolt pattern.


I've bought this disc brake kit a year ago and towed over 16K miles. THIS SYSTEM IS AWESOME! No more bucking and chucking or clanging or weak brakes. I tow with 2017 Ram 3500 4X4 and I can stop almost as fast with the trailer on as without. NO brake fade! No squeal! If you're still using electric brakes you're not safe. Totally worth the $$ and time.



Well, its been a little over a year and 14K miles since the install. This is the best thing Ive ever done for towing safety. Steep grades and panic stops are no problem. I let my brother-in-law drive my rig got a day and we did the install on his trailer ad well. He likes them as much as I do. These brakes SHOULD be mandatory on new trailers!


Nice quality products



No problems at all very satisfying


Products were easy to replace the old drum system a slight mod was needed to shin out the caliper to line it up onto the rotor but all in all it was a simple replacement all five bolts were able to be secured great looking system.


I changed out my electric drum brakes on my Montana fifth wheel with this hydraulic brake actuator and Kodiak discs rotor system . What a difference this new brake system has made. I can now lock down the trailer tires if needed and drive much more relaxed on the highway knowing I can stop on a dime.


Easy installation and extremely dependable braking power! I use these on a. 33 foot, 16,000 pound flatbed for work. I have 60,000 miles on them and they’re still in great shape. Converting to electric over hydraulic wasn’t cheap, but it was the best investment I made! No brake fade at all, and the stopping power is incredible over the factory electric brakes.


These parts are very heavy duty and fit perfectly on my Dexter 7K axles. The backing plates bolt on in place of the drum backing plates using the same bolts. Bearings, caps and seals are NOT included, but they are interchangeable with the drum brake system that it replaces so parts are readily available for any future repairs needed. At a minimum, you must order new grease seals because it's about impossible to get the old ones out without destroying them. I suggest ordering new bearings too so you aren't gambling on the old bearings still being serviceable. I didn't and lost my bet so I had to make an unscheduled visit to the local parts house where the prices aren't as good as etrailer. The Dacromet appears to be an excellent coating, but since everything is still new, it's too soon to say how it will hold up to the weather. The bolts come pre-treated with thread locking compound so no lock-tite required when installing the calipers.
I had one small problem where one of the brass hose fittings got smashed in shipping due to a combination of careless handling and insufficient packing. The caliper box has a protective pocket that looks like it's designed specifically to protect from this type of damage, but the rotors are heavy enough to defeat that feature when subjected to typical shipping company box banging. etrailer customer service handled this great and got a replacement caliper shipped out same day so I am very pleased with their support in spite of the temporary setback on getting to use my new brakes. I would like to see the kits packaged in a bit more padding and a heavier duty box that can stand up to delivery drivers. All 4 of my boxes were in pretty rough shape to include holes with parts protruding, but the only actual damage was one brass fitting.

So how do they work? Outstanding! I have pulled trailers with electric drum brakes for decades. I have never had a trailer stop itself anywhere near as well as this. In spite of the significantly higher cost for this system, it is well worth the peace of mind knowing that I can stop just as well with the trailer as I can without. I can't count how many times I've used bad words while trying to avoid a collision due to weak trailer brakes. Those days are gone! I plan to do the same upgrade to my other trailer too.


Good kit and the disc brakes are a tremendous upgrade. The only thing I would wish is that they would include the grade 8 fine thread bolts to replace the backing plate studs that are too short.


Just picked up the parts and everything looks good so far. I will let you know how it went after installation.


Ericka was a great help. Installing this week.

Craig L.




Disc break kit was great


Entrega super rápida, chegaram antes do prazo e ótimos produtos. Five stars [Super fast delivery, arrived on time and great products]


High quality parts, great customer service. Thank you!



Fast delivery






See what our Experts say about this Kodiak Accessories and Parts

  • Electric Over Hydraulic Disc Brake Set Up For a 12' Dump Trailer
    Your 2014 F-250 may or may not require an adapter. HydraStar states only the (2007 - 2008) Ford F-250 requires it however, in some late model trucks it can be hit or miss. If the factory brake controller isn't putting out enough voltage then it will not see there is a trailer with brakes connected and the brakes will not work on the trailer. There are two options in this case. Adding a second brake controller inside the vehicle or I recommend HydraStar Electric Over Hydraulic Actuator...
    view full answer...
  • Converting to Electric Over Hydraulic Disc Brakes From Electric Brakes on Trailer With 7K Axles
    There are a number of parts you will need to replace the electric drum brakes on your trailer, and though there is not an all-in-one kit I can let you know the parts you need, starting with a disc brake assembly to replace your current hub and drum. I contacted Lippert with the serial number from you axle and based off what they told me the the correct brake kit is the Kodiak Disc Brake Kit # K2HR712D which is for 7,000 lb axles and has an 8 on 6-1/2" bolt pattern for your wheels. These...
    view full answer...
  • Will A HydraStar Electric-Hydraulic Actuator Work With A 2011 Ford F-250 Factory Brake Controller
    The factory trailer brake controller in your 2011 Ford F-250 will have no issues at all working with the HydraStar Electric-Hydraulic Actuator w/ Line Kit for Disc Brakes # CAR-HBA16-2. It was just the controllers used in 2007 and 2008 Ford trucks that had compatibility issues, so you are good to go. I will say that wiring these can be on the difficult side though, so I highly recommend using a junction box, like the # 277-000141, if you do not already have one. One of the big pluses with...
    view full answer...
  • Kodiak Disc Brake and Actuator Kit Recommendation for 8,000 lb Trailer Axle
    Dexter does offer 8k axles but at this time we do not offer any. We do however have 8,000 lb axle disc brake kits from Kodiak that you could use like the part # K2HR89DD. Then for an actuator kit the HydraStar actuators are the best around. For a kit that comes with this actuator, brake lines, and a breakaway kit you'd want the part # HBA16-252-82. To pick out the axles you'll need you'll need to find a local trailer shop who can order them in and get them the hub face to hub face dimension...
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  • Recommended Hydraulic Brake Assemblies, Actuator, And Brake Lines For Dual Axle RV
    For your conversion to hydraulic brakes on your 7,000 lb dual axle RV, I recommend the Hydraulic Brake Kit - Uni-Servo - Free Backing - 12" - Left/Right Hand Assemblies - 5.5K to 7K # AKFBBRK-7. These assemblies are side specific and are labeled for you. These will work with your current hub and drum assemblies. For installation and adjustment, you will want the Brake Adjustment Spoon for Drum Brakes # W80630. If you need the mounting bolts for these assemblies, I recommend # BRKH12. If...
    view full answer...
  • Disc Brake Kit Recommendation for Lippert 7k Axles
    The disc brake kit # K2HR712D that you referenced should work well for you. You would need a quantity of 2 of these for each of your axles. These have the same bolt pattern as your current setup and are rated a 7k. You can verify that these will fit your spindle by removing a current hub and checking the numbers on the bearings. If they are 25580 for the inner and 14125A for the outer this kit would fit the spindle and work well. This kit will fit a spindle that has a diameter of 1.25...
    view full answer...
  • Parts Needed To Convert Electric Drum Brakes To Hydraulic Disc Brakes On 5th Wheel Trailer
    We do have a hydraulic disc brake kit that will fit 8 bolt hub, 8 on 6-1/2 Inch bolt pattern, 1/2 inch bolts. In addition to a hydraulic disk brake kit, you will also need a brake line kit, and a electric over hydraulic actuator, and a brake controller that is compatible with electric over hydraulic brakes. For a disc brake kit to replace your drum brake assembly, you will need the Kodiak Disc Brake Kit, part # K2HR712, which is designed for 7,000 lb axles, 16 Inch or larger wheels. This...
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  • Adding Disc Brakes to a 5th Wheel Trailer with Tandem 7,000 Pound Axles
    Since you are going from electric to hydraulic brakes on a 5th wheel trailer you will need to have an electric over hydraulic system. The various components will need to be chosen separately. For the brakes themselves I recommend the Kodiak Dacromet set # K2HR712D. This kit fits one axle so for 2 braking axles you would need 2 kits. This kit takes 2 of inner bearing # 25580 and 2 of outer bearing # 14125A with seal # RG06-070 (a set of 2). Check to make sure your existing hubs use these...
    view full answer...
  • What Torque Should 7k Trailer Axle Brake Assemblies be Torqued To
    Hey Dennis, so the bolts used to secure the 7k Disc Brake kit part # K2HR712D to your axle will need to be torqued to 30-50 ft-lbs. If you do not have access to a torque wrench then you can tighten the bolts down enough to where the lock washer is crushed and that will be sufficient. We also have a torque wrench available as part # ALL944001. If you need new hardware you can use part # BRKH12.
    view full answer...
  • Parts Needed To Convert Kaufman Mini 5 To Disc Brakes
    To covert your Kaufman Mini 5 Car Hauler Trailer to disc brakes, you are correct Kodiak Disc Brake Kit # K2HR712D will be needed, if you have capacity of 7000 lbs per axle and 8 on 6 1/2 bolt pattern. If your trailer currently has electric over hydraulic drum brakes, you already have a lot of the parts you need for disc brakes. All you will need are disc brakes and a different actuator since discs require a higher PSI rating than the drum brakes do. The races are included, the inner bearing...
    view full answer...
  • Parts Needed to Convert Tandem Axle Trailer with Dexter 7k Axles to Electric Over Hydraulic Disc
    For the disc brake assemblies you would want the Kodiak 7k disc brake kit part # K2HR712D. This is confirmed as a fit for your Dexter 7k axles and is Dacromet coated which will prevent corrosion. You'll need two sets of these. One for each axle. Then for an electric over hydraulic actuator kit we recommend the Hydrastar brand the highest since it has the quickest reaction time and is the most reliable. For a kit that has all the tandem brake lines needed plus a breakaway system you would...
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  • Parts Needed to Add Electric-Over-Hydraulic EOH Brakes to a 14K Trailer
    Thank you for the information and the pictures! We have exactly what you need to change your current hub and drum assembly to an Electric-Over-Hydraulic (EOH) disc brake setup. The most popular disc brake kit that we have to offer if the Kodiak Disc Brake Kit # K2HR712D which comes with a 13" rotor that has an 8 on 6-1/2" bolt pattern and is rated for 7,000 lbs. The dacromet finish on this kit gives it the best protection out there especially for freshwater and saltwater use. The rotor...
    view full answer...
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  • 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,...
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  • Replacement Rotors and Brake Pads for 7,000 lb Lippert Axle
    For your 2007 Teton Homes Experience, I recommend the Kodiak Disc Brake Kit - 13" Hub/Rotor - 8 on 6-1/2 - Dacromet - 7,000 lbs # K2HR712D for the entire disc brake kit. For just the hub assemblies with rotors, I recommend the Kodiak 13" Hub and Rotor - 8 on 6-1/2 - Dacromet - 9/16" Bolts # KHR1389D and bearing kit # BK3-200. For the brake pads, I recommend the Kodiak Ceramic Brake Pads - Stainless Steel Back # K250CP-SS or ceramic back # K250CP.
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  • Disc Brake Kit Recommendation for Car Hauler with Dexter 7,000 lb Axles
    For Dexter 7k axles we have the Kodiak XL Disc Brake Kit part # K2HR712D which is a confirmed fit and would work well. You will need to provide the bearings though which are part numbers # 25580 and # 14125A. For a grease seal you would need part # RG06-070.
    view full answer...
  • Disc Brake Kit Recommendation to fit 7,000 lb Dexter Axles
    For your Dexter 7k axles the Kodiak Kit part # K2HR712D would fit and work well. Your EZ lube grease caps from your current hubs will fit the hub/rotors and for bearings you would need # 25580 and # 14125A and then for the seal you would want the part # RG06-070.
    view full answer...
  • Disc Brake Kit Needed for a 2015 Cyclone 4200 with Triple Dexter Axles
    I reached out to my contact at Dexter Axle who gave me the spindle information for your specific axle. The compatible disc brake kit that I recommend going with is part # K2HR712D from Kodiak. My contact did mention that this axle originally came with electric brakes so you will need a brake line kit as well since it sounds like you already have an actuator. I have linked our available brake line kits. All you have to do is filter through the selection for the best fit for your trailer...
    view full answer...
  • Converting Disc Brakes from 6 on 5-1/2 to 8 on 6-1/2 Bolt Pattern
    The Kodiak Disc Brake Kit # K2HR712D will work with your 6k axles. Although your current outer bearing is probably a # 15123, the # 14125A used with this brake kit has the same inner diameter of 1.25" so it will fit your spindle. Everything else is going to be the same.
    view full answer...
    Image 1 for
  • Recommended Disc Brake Kit for Dexter 7,000 lbs Axles
    To upgrade to disc brakes on your Dexter 7,000 lbs axles you will want the Kodiak XL Disc Brake Kit item # K2HR712D. This is confirmed to fit your axles. You will need one set for each axle as they are only sold as a pair. This kit does not come with bearings. You will need to provide one of each of the following for every hub: Inner Bearing item # 25580 Outer Bearing item # 14125A Grease Seal item # RG06-070 For an actuator and brake lines, I recommend the Hydrastar Electric Over...
    view full answer...
  • Electric Over Hydraulic Actuator Recommendation Grand Design 369 RL Fifth Wheel
    The best electric over hydraulic actuator we carry is the HydraStar part # HBA16. We have found that it is the most reliable and has the quickest braking action. Aside from that check out the help article I attached that details the entire process of adding EOH brakes to a trailer. You are going to need to replace the hubs to hub/rotors. For 7k disc kit the part # K2HR712E would fit your axles. These have the standard 8 on 6-1/2 inch bolt pattern that 7k axles typically have. Or for a...
    view full answer...
  • Converting Hydraulic Drum Brakes to Disc Brakes.
    We definitely have options to convert hydraulic drum brakes to hydraulic disc brakes. The Kodiak Disc Brake Kit # K2HR712D is designed to work with a 7,000 pound axle that has wheels that use an 8 on 6 1/2 bolt pattern and the inner bearing # 25580 and outer bearing # 14125A. You would want to match these to your existing bearing to verify the fit. I have an article included that helps with converting hydraulic drum brakes over to disc brakes that should make this easier. You can also...
    view full answer...
  • Parts Needed To Convert Trailer From Electric Drum Brakes To Electric Over Hydraulic Disc Brakes
    We do have an electric over hydraulic disc brake kit that will fit a trailer with two 7000 lb rated torsion axles. In addition to a hydraulic disc brake kit, you will also need a brake line kit, that is compatible with electric over hydraulic brakes. We also want to confirm how many bolts you have on your hub, we will need your bolt pattern, size of wheels, and we will need the lengh of your bolts. For a disc brake kit to replace your drum brake assembly, you will need the Kodiak Disc...
    view full answer...
  • Availability of Kodiak 7k Axle Disc Brake Kit with 8 Lug Bolt Pattern and 1/2 inch Studs
    We do carry the 7k Kodiak disc brake kit you are looking for with the Kodiak Disc Brake Kit part # K2HR712D which is dacromet coated, has the 8 on 6-1/2 inch bolt pattern and has the 1/2 inch diameter wheel studs.
    view full answer...
  • Parts Needed to Upgrade From 7K to 8K Axle and Convert to Electric Over Hydraulic Brakes
    In order to change from an 7,000 pound axle to an 8,000 pound axle you will need to replace the entire axle with an 8K model. You will not be able to add any parts to your current axle to upgrade it to an 8,000 pound capacity. We do not currently have any 8,000 pound axles available but you will want to find one that features the same hub face and spring center length to what you currently have. Then in order to convert from electric drum brakes to electric over hydraulic disc brakes...
    view full answer...

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