5/8" Bolts are included with this 2-assembly brake kit. Dacromet-plated rotors, calipers and mounting brackets fit 8,000-lb Dexter axles and 16" and larger wheels. 13" Rotor features 8 on 6-1/2 bolt pattern. 1-800-940-8924 to order Kodiak accessories and parts part number K2HR858DD or order online at etrailer.com. 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 - 8,000-lb Dexter Axle. Accessories and Parts reviews from real customers.
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Kodiak Accessories and Parts
- K2HR858DD
Trailer Brakes
Disc Brakes
Brake Assembly
Kodiak
Hub and Rotor Assembly
8 on 6-1/2
LH
RH
8000 lbs
5/8" Bolts are included with this 2-assembly brake kit. Dacromet-plated rotors, calipers and mounting brackets fit 8,000-lb Dexter axles and 16" and larger wheels. 13" Rotor features 8 on 6-1/2 bolt pattern.
Features:
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
4-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
Specs:
Fits:
Axle capacity: 8,000 lbs
#42 Spindle
Axle type: Dexter
Wheel size: 16" and larger
Bolt pattern: 8 on 6-1/2"
Rotor diameter: 13"
Brake flange configuration: 4 bolt
Wheel stud diameter: 5/8"
Knurl diameter: 0.685"
Knurl length: 0.625"
Pilot diameter: 4.550"
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.
Calipers
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.
K71-2H-133-8D-5-DDD Kodiak Disc Brakes - 2 Wheel Set - Integral Hub and Rotor - Dacromet Finish - 5/8" Wheel Bolts - 8,000 lbs - Dexter Axle
Replaces 2/HRCM-133-8D-10-SCAD (K2HR858DSC), 2/H-133-8D-5-DDD, and 2/HRCM-133-8D-10-DAC-K
WARNING: This product contains chemicals known to the State of California to cause birth defects or other reproductive harm. Wash hands after handling. For more information, go to www.p65warnings.ca.gov.
Customers Who Purchased This Accessories and Parts Also Bought...
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This total break overhaul was actually fun to do because i got everything from etrailer and I knew it was a perfect fit! One year and thousands of miles later I still love it. If your on the fence, take the plunge, you WILL be happy..
Trailer a 25ft 6500 lb boat up an down the East coast in salt water. 830960
by:
Larry
05/11/2023
Easy to order; delivery was quick.1576228
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Todd
10/12/2021
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See what our Experts say about this Kodiak Accessories and Parts
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...
Hey Abe, your 8k axles should be 3 inch in diameter which the part # RM-2460-2580 that you referenced would be correct for but you still should probably measure because it's not unheard of for them to be 3-1/2 inch. The parts you'd need for the electric over hydraulic disc kit conversion would be:
- Kodiak Disc Brake Kit - 13" Hub/Rotor - 8 on 6-1/2 - Dacromet - 8,000 lb Dexter Axle # K2HR858DD
- Bearing Kit for Trailer Brakes with 13" Hub/Rotor and 5/8" Bolts - Grease - 7K to 8K # DBRKHW85G
-... view full answer...
Since you have 8k Dexter torsion axles the correct kit you'd need to convert the axle to disc brakes would be the Kodiak kit part # K2HR858DD. This comes with the correct rated hub and rotor kit that fits the spindle you have on your trailer. I attached an install video for this kit for you to check out as well.
I am not sure if you are planning on converting to electric over hydraulic brake disc brakes or surge disc brakes but I attached help article links that cover how to make both... view full answer...
For a disc brake kit for your 8k axles you'd want the # K2HR858DD which is a disc brake kit for that axle.
For a kit for the electric over hydraulic actuator with lines and a breakaway the best kit option we have is the HydraStar kit part # CAR-HBA16-2 as this is the most reliable and best performing kit we have. view full answer...
The most similar option to the # K2HR858DD that uses grease instead of oil is the Dexter Disc Brake Kit part # K71-635-90 which fits the same spindles and has same weight capacity but uses grease and a slip on style of rotor setup with included idler hubs. view full answer...
We have exactly what you are looking for with the Kodiak Disc Brake Kit # K2HR858DD. This is a hub and rotor assembly with an 8 on 6-1/2" bolt pattern and fits 8,000 lb Dexter axles with 5/8" wheel studs. view full answer...
I'd be happy to help, but parts for 8,000lb axles is pretty specific so you'll need to find out what brand axles you have on your car hauler.
For Dexter axles you'll need (3) of the Kodiak Brake Kit # K2HR858DD, or if you have ALKO/Quality axles you'll need (3) of the # K2HR89AD instead.
In addition to the brake kits you'll need the following parts:
Brake line kit # HS496-253
Actuator # HBA16
Also you'll need to make sure the trailer brake controller you have is compatible with EOH... view full answer...
Disc brakes have to have a hydraulic element to activate them which means there isn't strictly an electric only option. What you'll want is an electric over hydraulic setup which gives you the adjustability of electric brakes but also the stopping power of hydraulic disc.
Since we know you have 8,000 lb axles I don't really have any additional questions so what you'll want is the kit part # K2HR858DD if your current wheel studs are 5/8 inch or part # K2HR89DD if they are 9/16 inch and... view full answer...
Converting your 5th wheel trailer from drum to disc brakes will require new disc brake assemblies of course, an electric-over-hydraulic actuator like # HBA16 that converts the electrical signal from your P2 # 90885 into hydraulic pressure, brakes lines (if the trailer had electric drum brakes) and new hub/rotors that use the same bearings as your original drums. I suggest you check out the linked article that covers each of these items. Links to each item category are included in the article.... view full answer...
The pilot diameter of the Kodiak Disc Brake Kit part # K2HR858DD is around 3.5" at its narrowest near the top and 4.5" at its widest near the base. I went out to our warehouse to confirm this for you. view full answer...
We do have everything you need in order to install electric-over-hydraulic disc brakes on your trailer with tandem 8,000 lb Dexter axles. And while there isn't a single kit with all the parts, I'll go ahead and make a list for you of what you need:
- Kodiak Disc Brake Kit - 13" Hub/Rotor - 8 on 6-1/2 - Dacromet - 8,000 lb Dexter Axle # K2HR858DD
- Bearing Kit for Trailer Brakes with 13" Hub/Rotor and 5/8" Bolts - Grease - 7K to 8K # DBRKHW85G
- HydraStar Electric Over Hydraulic Actuator... view full answer...
At etrailer 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.
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