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  1. Trailer Brakes
  2. Kodiak
  3. Disc Brakes
  4. 8000 lbs Axle
  5. Hub and Rotor
  6. 16 Inch Wheel
  7. 16-1/2 Inch Wheel
  8. 17 Inch Wheel
  9. 17-1/2 Inch Wheel
Kodiak Disc Brake Kit - 13" Hub/Rotor - 8 on 6-1/2 - E-Coat - 8,000-lb AL-KO/Quality

Kodiak Disc Brake Kit - 13" Hub/Rotor - 8 on 6-1/2 - E-Coat - 8,000-lb AL-KO/Quality

Item # K2HR89AE
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Our Price: $578.03
Trailer Brakes
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Shipping Weight: 30 lbs
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9/16" Bolts are included with this 2-assembly brake kit. E-coated rotors, calipers and mounting brackets fit 8,000-lb AL-KO/Quality axles and 16" and larger wheels. 13" Rotor features 8 on 6-1/2 bolt pattern. Lowest Prices for the best trailer brakes from Kodiak. Kodiak Disc Brake Kit - 13" Hub/Rotor - 8 on 6-1/2 - E-Coat - 8,000-lb AL-KO/Quality part number K2HR89AE can be ordered online at or call 1-833-496-1390 for expert service.
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Kodiak Trailer Brakes - K2HR89AE

  • Disc Brakes
  • 8000 lbs Axle
  • Hub and Rotor
  • 16 Inch Wheel
  • 16-1/2 Inch Wheel
  • 17 Inch Wheel
  • 17-1/2 Inch Wheel
  • Camper
  • Car Hauler
  • Utility Trailer
  • 8 on 6-1/2
  • Kodiak
  • 9/16 Inch Studs

9/16" Bolts are included with this 2-assembly brake kit. E-coated rotors, calipers and mounting brackets fit 8,000-lb AL-KO/Quality axles and 16" and larger wheels. 13" Rotor features 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
  • E-coat finish provides corrosion resistance for freshwater and limited saltwater use
  • 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
    • Silver cadmium 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
    • 4-Bolt brake flange mounting configuration - weld-on flange sold separately
  • Kit includes 2 full brake assemblies
    • 2 E-coated, cast iron rotor-and-hub assemblies
    • 2 E-coated, cast iron calipers
    • 2 E-coated, 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: 8,000 lbs
      • #42 Spindle
    • Axle type: AL-KO/Quality
    • Wheel size: 16" and larger
  • Bolt pattern: 8 on 6-1/2"
  • Rotor diameter: 13"
  • Brake flange configuration: 4 bolt
  • Wheel stud diameter: 9/16"
  • 3-Year warranty

Bearing, Race and Seal Information

  • Bearings (sold separately)
    • Inner bearing: 25580
    • Outer bearing: 02475
  • Races (included)
    • Inner race: 25520
    • Outer race: 02420
  • 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 4-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-133-8A-9-EEE-K Kodiak Disc Brakes - 2 Wheel Set - Integral Hub and Rotor - E-Coat Finish - 9/16" Wheel Bolts - 8,000 lbs - AL-KO and Quality Axles

Replaces 2/HRCM-133-8A-9-E

Installation Details K2HR89AE Installation instructions

Video of Kodiak Disc Brake Kit - 13" Hub/Rotor - 8 on 6-1/2 - E-Coat - 8,000-lb AL-KO/Quality

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

Video Transcript for Kodiak Trailer Brakes - Disc Brakes - K2HR89AE Review

Speaker 1: Today I'm going to take a look at the Kodiak E-Coat Disc Brake Kit with the 13" Hub and Rotor, 8 on 6-1/2" bolt pattern, for 8,000 pound AL-KO/Quality axles.Now, these brake assemblies will make it very easy to upgrade from drum to disc brakes for better performance. Disc brakes will deliver better performance than drum brakes, because it will give you more consistent stopping, even at highway speeds, and dramatically shorter stopping distances. Also, the maintenance costs are lower than for drum brakes because you have fewer moving parts to maintain, repair, or replace.This kit will include everything shown here on the table. It includes two full brake assemblies. You get the two E-coated cast iron hub and rotor assemblies, two E-coated cast iron calipers with the four stainless steel caliper mounting bolts, and then two of the E-coated ductile iron caliper mounting brackets.Now, the hub and rotor, it's an integral hub and rotor. It's all one piece.

This will minimize lateral run-out, prevent warping. Provides a nice smooth ride with the balanced hub and rotor. It does use industry standard bearings and seals that we do sell separately. Now, the bearing races are pre-installed in the hub and rotors, so they're included, and then the oil caps here are also included.Now, this rotor will prevent heat-related damage. It uses the vented design.

This will effectively dissipate the heat. It does include the wheel studs. The lug nuts to install your wheel are sold separately. The calipers are a cast iron caliper. They are self-adjusting for smooth, equal braking.

The cast iron construction does not flex like aluminum. It is a low-drag design, so it retracts the piston further than other calipers for a cooler running brake.The piston in it . Let me see if I can turn this over, take out the brake pad. There's your piston right there. It's a silver cadmium piston.

It's 2-1/2" in diameter, which is about 30% larger than other brands. It'll give you more braking torque than the competition, and again, it comes with the high performance ceramic brake pads.Now, the caliper mounting brackets that'll hold the calipers, they're a ductile iron caliper mounting bracket, provides strength and durability. They are a side support angled design, so it ensures that the load is placed on the bracket, not just the bolts. It does give you extra embossing for additional thread contact to ensure a nice tight, secure mounting for your caliper guide bolts. If you notice, it is designed for a four-bolt brake flange mounting configuration.Now, this assembly does require hydraulic brake actuator and brake lines, which we sell separately. They are required for the brakes to be activated. You do want to make sure the actuator and the brake lines that you get have at least a 1500 psi rating.These parts are made in the U.S.A. Again, this is designed to fit 8,000 pound AL-KO/Quality axles with the number 42 spindle. The wheel size that'll fit on these are 16" diameter and larger. Bolt pattern is an 8 on 6-1/2" bolt pattern. Rotor diameter, from this edge to this edge, is 13", and the wheel stud size is 9/16".But that should do it for the review on the Kodiak E-Coat Disc Brake Kit with 13" Hub and Rotors, 8 on 6-1/2" bolt pattern, for 8,000 pound AL-KO/Quality axles.

Customer Reviews

Kodiak Disc Brake Kit - 13" Hub/Rotor - 8 on 6-1/2 - E-Coat - 8,000-lb AL-KO/Quality - K2HR89AE

Average Customer Rating:  5.0 out of 5 stars   (1 Customer Reviews)

9/16" Bolts are included with this 2-assembly brake kit. E-coated rotors, calipers and mounting brackets fit 8,000-lb AL-KO/Quality axles and 16" and larger wheels. 13" Rotor features 8 on 6-1/2 bolt pattern.


Love my new brakes I replaced my drum brakes now my RV stops my truck. they make towing a 40' trailer a dream.


See what our Experts say about this Kodiak Trailer Brakes

  • What is Diameter of Wheel Collar on Kodiak Disc Brake Kit # K2HR89AE
    The wheel cradle, where the wheel pilot fits onto the hub, for the Kodiak Disc Brake Kit # K2HR89AE referenced in your question has a diameter of 4.745 inches. This assembly fits 8,000 pound AL-KO/Quality axles and 16 inch or larger wheels. The rotor diameter is 13 inches.
    view full answer...
  • Disc Brake Conversion Kits for 8K Axles and 17-1/2-Inch Trailer Wheels
    We do have disc brake kits for 8000-lb axles that will be compatible with 17-1/2-inch trailer wheels and you can see these on the linked page. These Kodiak kits include both the hub-and-rotor type like # K2HR89AE and rotor-only kits like # K2R858DE. All use the 8-on-6-1/2 wheel bolt pattern. The linked article will give you a complete recap of the items needed to make a trailer brake conversion to EOH disc operation.
    view full answer...
  • Disc Brake and Brake Line Kits for 8K Axles
    Titan brakes and actuators were bought out by Dexter Axle, and we do carry disc brake kits with the slip-over rotors, calipers and mounting brackets for 8000-lb axles from Dexter: Dexter Disc Brake Kit - 12-1/4" Rotor - 8 on 6-1/2 - E-Coat - 8,000 lbs - # K71-635-2 Dexter Disc Brake Kit - 12-1/4" Rotor - 8 on 6-1/2 - E-Coat - 8,000 lbs - Nev-R-Lube - # K71-646-2 While these do not include brakes lines we do have many brake line kits to choose from for your installation. In fact if you...
    view full answer...
  • Suspension Upgrade and Disc Brake Recommendations for 2020 Vanleigh 385RD with 8K Axles
    The Roadmaster Comfort Ride Leaf Spring Suspension Kit w/ Shocks # RM-2470-2580 is a great option for your 2020 Vanleigh 385RD8K axles and will do a phenomenal job at giving you a better ride quality. The correct MORryde X-Factor Crossmember for your standard axle setup is the part # MR49ZR but you'll need to install this on the front-most and rear-most hangers since this won't fit with the main body of the Comfort Ride system as it completely covers the middle spring hanger that the X-Factor...
    view full answer...

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Info for this part was:

Employee Lindsey S
Written by:
Lindsey S
Employee Jeff D
Installed by:
Jeff D
Employee Adam R
Expert Research:
Adam R
Employee Kathleen M
Video Edited:
Kathleen M
Employee Wilson B
Updated by:
Wilson B
Employee Brian T
Updated by:
Brian T
Employee Hannah L
Updated by:
Hannah L
Employee Mike S
Updated by:
Mike S

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