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  1. Trailer Brakes
  2. Kodiak
  3. Disc Brakes
  4. 3500 lbs Axle
  5. Rotor
  6. 14 Inch Wheel
  7. 14-1/2 Inch Wheel
  8. 15 Inch Wheel
Kodiak Disc Brake Kit - 10" Rotor - 5 on 4-1/2 - Dacromet and KodaGuard - 3,500 lbs

Kodiak Disc Brake Kit - 10" Rotor - 5 on 4-1/2 - Dacromet and KodaGuard - 3,500 lbs

Item # K2R35DKG
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Rust-resistant disc brake kit is great for boat trailers. Includes 2 KodaGuard-plated calipers; 2 Dacromet-plated, slip-on rotors and brackets; and 4 stainless steel caliper mounting bolts. Fits 3,500-lb axles and 14" and larger wheels. Lowest Prices for the best trailer brakes from Kodiak. Kodiak Disc Brake Kit - 10" Rotor - 5 on 4-1/2 - Dacromet and KodaGuard - 3,500 lbs part number K2R35DKG can be ordered online at or call 1-800-940-8924 for expert service.
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Kodiak Trailer Brakes - K2R35DKG

  • Disc Brakes
  • 3500 lbs Axle
  • Rotor
  • 14 Inch Wheel
  • 14-1/2 Inch Wheel
  • 15 Inch Wheel
  • 5 on 4-1/2
  • Boat Trailer
  • Snow Trailer
  • Kodiak

Rust-resistant disc brake kit is great for boat trailers. Includes 2 KodaGuard-plated calipers; 2 Dacromet-plated, slip-on rotors and brackets; and 4 stainless steel caliper mounting bolts. Fits 3,500-lb axles and 14" and larger wheels.


  • Marine-grade trailer brake assemblies let you 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
  • Superior corrosion resistance for marine applications
    • Dacromet coating on hub-rotors and brackets has 300- to 400-hour salt spray rating
    • KodaGuard coating on calipers has a 600-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
  • 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 for more braking torque
    • High-performance, ceramic brake pads
  • Stainless steel backing plates on brake pads prevent corrosion
  • 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 assemblies
    • 2 Dacromet coated, cast iron rotors
    • 2 KodaGuard-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


  • Application: 3,500-lb axles
    • #84 Spindle
  • Wheel size: 14" and larger
  • Bolt pattern: 5 on 4-1/2"
  • Rotor diameter: 10"
  • Brake flange configuration: 4 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.

Corrosion Resistance for Marine Use

This disc brake assembly resists corrosion, making it ideal for use on your boat trailer. All KodaGuard calipers undergo a test in which they are sprayed with a 5-percent salt solution to determine corrosion resistance over time. These products are able to withstand 600 hours of constant exposure to the saltwater mist. This 600-hour salt spray rating indicates that this product is not only durable enough to last in freshwater environments, but it can also be used on trailers that come into contact with saltwater.

In addition, the rotors and caliper mounting brackets have a Dacromet plating, which offers a 300- to 400-hour salt spray rating. The pistons, the brake pad backings, and the caliper mounting bolts are stainless steel. These corrosion-resistant components make this Kodiak assembly a natural choice when installing disc brakes on your boat trailer.

Over-the-Hub Rotors for Easy Replacement

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.

The 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.


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/R-10-DKD-K Kodiak Disk Brakes - 2 Wheel Set - Rotor Only - Dacromet Finish and Koda Guard - 3,500-lb Axles

Replaces 2/RCM-10-DAC-KG-KIT

Customer Reviews

Kodiak Disc Brake Kit - 10" Rotor - 5 on 4-1/2 - Dacromet and KodaGuard - 3,500 lbs - K2R35DKG

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

Rust-resistant disc brake kit is great for boat trailers. Includes 2 KodaGuard-plated calipers; 2 Dacromet-plated, slip-on rotors and brackets; and 4 stainless steel caliper mounting bolts. Fits 3,500-lb axles and 14" and larger wheels.


After years of trouble with my trailer brakes, I overhauled my brake system using two of these kits and adding a set to the second axle. They are holding up well and have been used occasionally in salt water. I previously used kits that were hub and disk assemblies and I think separating them is a better alternative. I also installed greasable bolts on my springs and I'm really happy with those... Highly recommended!


This kit is about 90% complete. You only need to reuse your existing backing plate bolts or buy and install new. It takes about 20 to install on one axel. The instructions are pretty simple. I'm very satisfied with this kit.

This product is still working out well. I generally use my boat trailer just a few times a year mostly Transitioning from the marina to my house in the spring and fall. The brakes work extremely well. The quality of parts and fit was perfect for my needs and type of use.
Wade R - 07/01/2020


Best price and fastest FREE delivery on a fantastic product. etrailer kept me updated from order through delivery too, which was nice.


I'm sure the actual parts are great. Unfortunately I was sent the wrong hubs by mistake ( I received hub/rotors not rotors) . The calipers that were sent were also not Kodacoated .
So..... no explanation of how the order got mixed up so badly from Etrailer although they were pretty good about getting the return set up through UPS.


Thanks!! What a great experience with Trailer needed many parts, rusted, broken etc. Tried to contact maker of trailer for replacement parts, bad experience. Rude, unwilling to help, handling fees, VERY expensive shipping, and cash up front. I then turned to! Fantastic people on the line, sales personal were Kind, patient, and very knowledgeable about all my trailer needs. My parts arrived quickly, free shipping, and accurate. Not to mention I saved a bunch of money!!!! New Break System from front to back, new Trailer Winch. Thanks, Customer for life!


So far so good, no corrosion. 1 year.


I have ordered trailer parts numerous times with etrailer. Once again, they came thru. Good prices and on my doorstep two days later. I'll be ordering again at etrailer when the need arises. I would also add that the sales person was extremely knowledgeable and helpful on the phone.


They went on fine. Only time will tell if the special blue coating helps with the saltwater exposure. Paired these with an elec over hyd actuator. Stops the boat trailer smooth.


Breaks for work very well. Great stopping ability. Very easy to install.
Kris - 06/10/2022











Ask the Experts about this Kodiak Trailer Brakes

  • Replacement Recommendation For Disc Brakes For Three Axle Boat Trailer
    The disc brakes you need will be determined by the weight of your axles (not the total capacity of your trailer), the size of your brake mounting flange (4-bolt most common), and the rotor diameter of your disc brakes. The best way to find the weight capacity of your axles is to look for a plate or sticker on your axles that provides information such as part number, lengths, and axle capacity (see attached picture). If the label is gone, then you can find the size with the diameter of...
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  • Picking Out Disc Brake Kit for 1991 Ranger Bass Boat Ranger Trail Trailer
    To pick out the parts you need we would need more info from you. We don't have access to original equipment on your trailer and due to it's age it all could have been swapped out at this point. What you are looking for is basically a whole new disc brake kit. Which we most likely have but we first have to know what capacity axles you have so that we can pick out the correct kit. Do you know what capacity axles you have? You can measure the diameter of the axle if it is round and that will...
    view full answer...
  • Disc Brake Kits for Converting ShoreLandr Tandem Axle Boat Trailer to Disc Brake Operation
    Installing disc brakes on your trailer that has drum brakes now will require new brake assemblies and also a new actuator that can provide the higher hydraulic pressure needed by disc brakes. You can stay with a straight hydraulic setup like you have now or you can install an electric-over-hydraulic (EOH) actuator that works with an electric trailer brake controller in the tow vehicle the way electric drum brakes do. I linked two articles for you, one covering each of those two disc brake...
    view full answer...
  • Will the Kodiak Disc Brake Kit with 10" Rotors Work With 13" Wheels
    The Kodiak Disc Brake Kit with 10" Rotors part # K2R35DKG is designed for 14+" wheels. This size is needed to clear the calipers. Therefore, if you have smaller wheels you'll have to upgrade but we have plenty of options to choose from below.
    view full answer...
  • Can Kodiak Disc Brake Kit Calipers Be Mounted In Other Positions
    According to Kodiak, the Kodiak Disc Brake Kit - 10" Rotor - 5 on 4-1/2 - Dacromet and KodaGuard - 3,500 lbs # K2R35DKG calipers can be installed in 4 different positions. Typically they are installed at the 12 o'clock position, but 3, 6, and 9 are also acceptable. In other words, the mounting bracket can be installed in any direction the bolt pattern allows.
    view full answer...
  • Recommendation For Replacement Brakes For 1997 MacGregor 26X Sailboat Trailer
    We will be glad to help but unfortunately there are all kinds of options and possibilities. The best way to find the right replacement brakes is to find the weight capacity of your axle (see attached picture), the size of your brake mounting flange (4-bolt pattern most common), and your drum diameter for drum brakes and rotor diameter for disc brakes. If your trailer has a 3,500-lb axle with drum brakes and a 4-bolt brake flange, I recommend something like the Hydraulic Brake Kit,...
    view full answer...
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  • How to Determine Correct Over-the-Hub Disc Brakes for Boat Trailer
    There are a few things that you will need to know in order to choose the right disc brake kit for your 2003 DHM boat trailer. I assume you have idler hubs and are replacing your brakes so you already have a 4-bolt brake mounting flange # 4-35 as well as an actuator and brake lines. If so, the first thing you need to know to get the right brakes is the axle capacity you have, and the other is your bolt pattern. If you aren't sure what your bolt pattern is I've linked a help article as...
    view full answer...
  • Brake Pad Backing Material On Kodiak Disc Brake Kit with 10" Rotors (Dacromet and Stainless Steel)
    The Kodiak Disc Brake Kit with 10" Rotors (Dacromet and Stainless Steel) part # K2R35DS comes with standard polyurethane coated backing plates on the pads. The Kodiak Disc Brake Kit with 10" Rotors (Dacromet and KodaGuard) part # K2R35DKG comes with stainless steel backing plates on the pads. We also offer the Kodiak Ceramic Brake Pads w/Stainless Steel Backing Plate part # K225CPSS seperately.
    view full answer...
  • Recommended Disc Brake Kit For 20 Foot Boat Trailer
    Brake lines can get clogged, and most of the time it has to do with someone not being careful when adding fluid and getting small particles inside instead of having disintegrated parts due to corrosion. To upgrade to disc brakes, you will basically need to replace everything except the brake lines which can be blown out with compressed air. The coupler will require a stronger master cylinder for disc brakes vs. drum brakes because disc brakes require 1600 psi where drums require 1000-1200...
    view full answer...
  • 168255TB Double Lip Seal on a Kodiak 5 on 4 1/4 3500 lb Axle Disc Brake Kit
    Yes, you can use the Double Lip Seal for 3,700-lb Marine Hubs item # 168255TB for your Kodiak Disc Brake Kit - 10" Rotor - 5 on 4-1/2 - Dacromet and KodaGuard - 3,500 lbs item # K2R35DKG. The outer diameter is the same at 2.56". I have attached a diagram showing the dimensions.
    view full answer...
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  • Axle and Hub Recommendation for Off Road Camper Trailer
    When it comes to building an off road camper trailer, the best configuration that I can come up with is using the Timbren Heavy-Duty Axle-Less Trailer Suspension, # ASR35HDS02, with the Kodiak Disc Brake Kit, # K2HR526DKG. The heavy-duty steel construction and black powder coat finish of the axle-less system resists wear and corrosion and the rust-resistant, marine-grade, disc brake kit would be perfect for your set-up since you mention the fact of them going under water/mud on a regular basis.
    view full answer...
  • Can Trailer with Drum Brake Actuator Be Adapted to Work with Disc Brakes
    Since you said "without a check valve" that makes me think you have a drum brake actuator that you are planning to remove the check valve off so that it might work with disc brakes instead. We're aware that this seems to work well for a number of people but when we have checked with the actuator manufacturers they won't safely endorse this. They'd require either swapping out the master cylinder of the actuator for one that is compatible with disc brakes or going with an all new actuator...
    view full answer...
  • Will Demco Disc Brake Actuator Put Out Enough Pressure for Kodiak Disc Brakes
    The Kodiak Disc Brake Kit # K2R35DKG that you referenced does indeed require a psi rating of at least 1,500 for proper operation but this is standard for disc brakes. Any brake actuator that is designed for disc brake assemblies, such as the Demco # DM62VR, will absolutely provide the needed pressure. They don't typically have a specific psi rating but they will typically put out around 1,500 to 1,600 psi, varying a bit depending on the weight of your trailer, stopping force, etc. I have...
    view full answer...
  • Kodiak Disc Brake Kit that Fits Dexter 3,500 lb Trailer Axles
    Thank you for all of the info you listed for the axles you have. Since we know you have a Dexter 3,500 lb axle the Kodiak Disc Brake Kit part # K2R35DKG is the correct fit. Then for a kit that provides everything else to install you'd want the Hydrastar kit part # HBA16-252-82 and you'd be set. This comes with the fastest and most reliable actuator out there. I attached an install video for this for you to check out as well.
    view full answer...
  • Parts Needed to Convert Trailer to Surge Disc with Welded on Atwood Actuator and 3,500 lb Axles
    Since your current Atwood surge drum actuator is welded to your trailer frame what you'll need to do is take the trailer to a welder who can cut the welds and remove what you have now and in place install a weld on coupler designed for disc brakes like the part # DX63FR. Since the diameter of your brake drum is 10 inch that means you have a 3,500 lb trailer axle so for a disc brake kit to replace that you'd just need the # K2R35DKG.
    view full answer...
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  • 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...
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  • Converting Boat Trailer Brakes From Surge Drum Brakes To Surge Disc Brakes
    If you are looking to use your Demco brake actuator you need to make sure it is compatible with disk brakes. Some actuators will only work with drum brakes because drum brakes do not require as much "pound per square inch" of fluid as a disk brake set up does. If it does not then you have to replace the actuator. I recommend Dexter DX7.5 Drop-N-Go Brake Actuator - Disc Brakes - 2" Ball - Zinc Plated - 7,500 lbs Item # 099-175-20. It is a bolt on application with the reverse lockout feature,...
    view full answer...
  • Can I Use my Existing Stainless Steel Brake Lines with Kodiak Disc Brake Kit
    Yes. The Kodiak Disc Brake Kit # K2R35DKG can be used with the existing brake lines on your trailer, regardless of whether they're rubber or steel. These brakes do have the 2 bolt caliper that you're looking for and they're designed to be used on 3500-lbs axles, so they're exactly what you're looking for. If you wanted to swap to flexible rubber brake lines, for a single axle trailer you'd want to use the Kodiak Hydraulic Brake Line Kit # 18SI-BLKIT or the Kodiak Hydraulic Brake Line Kit...
    view full answer...
  • Correct Mounting Bracket Bolts for Kodiak Disc Brake Kit
    You are correct, the bolts for the mounting bracket are not included with the Kodiak Disc Brake Kit - 10" Rotor - 5 on 4-1/2 - Dacromet and KodaGuard - 3,500 lbs # K2R35DKG. What you need is the Brake Mounting Bolt for 7" and 10" Brake Assemblies # 7-75. Along with the bolts you will also want the Mounting Nut for 7" and 10" Brake Assemblies - 7/16" Diameter - Zinc Plated # 6-17 and the Lock Washer for Brake Mounting Bolt for 7" and 10" Brake Assemblies - 7/16" Diameter # 5-8.
    view full answer...
  • Recommended Disc Brakes for 3,500 lb Axles
    There is a little bit of information from Kodiak brakes that has some tests that I will link you to separately. We do consider Kodiak to be top-notch and for a 3,500 lb idler hub, I recommend the following braking system: - Kodiak Disc Brake Kit - 10" Rotor - 5 on 4-1/2 - Dacromet and KodaGuard - 3,500 lbs # K2R35DKG These will fit over your hubs so long as they have a 5 on 4-1/2" bolt pattern, which is pretty standard, though I'll link you to a help article to figure out how to determine...
    view full answer...
  • How to Determine if Kodiak Disc Brake Kit K2R35DKG Will Fit a Trailer
    As long as your axle has 5 on 4-1/2 inch bolt pattern idler hubs plus a brake mounting flange the Kodiak Disc Brake kit part # K2R35DKG will fit it. Look for a plate behind the spindle with 4 bolt holes in it for the flange. As long as the hubs of your trailer take L44649/L68149 bearings the bearing kit part # BK2-100 will fit them. As long as the trailer has a 3 inch wide frame channel the Demco part # 8608611 will fit. The tandem brake line kit part # 24TA-BLKIT will work with the actuator...
    view full answer...
  • Recommended Disc Brakes for a Magic Boat Trailer with 3,500 Pound Tandem Axles
    Adding a disc brake system will be a great addition to your Magic boat trailer. The parts you will need are a brake mounting flange, spindle, disc brake assembly, hydraulic disc brake actuator and brake line kit. I recommend the Kodiak disc brake kit # K2R35DKG because it has rust resistant disc brakes and is great for boat trailers. The cast iron, slip on over the hub rotors are great because you won't need to replace your entire hub assembly. Note, as long as your bolt pattern is 5...
    view full answer...
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  • Parts Needed To Upgrade Drum Brakes on Boat Trailer to Disc Brakes
    Given the size of your wheels and the bolt pattern, it's likely that you have a 3500 lb axle. You can confirm this by checking the reference numbers on your inner and outer wheel bearings. The reference number can be found on the side of the bearing cages. If you have an L68149 Inner and an L44649 outer bearing, and the diameter of the spindle where the grease seal rides is 1.719 inches in diameter, I'd recommend the Kodiak 10 inch hub/rotor kit, part # K2HR35D. If you wanted to install...
    view full answer...
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  • Recommended Disc Brake Upgrade for Boat Trailer
    To give you your upgraded brake system, I recommend using the Kodiak Disc Brake Kit - 10" Rotor - 5 on 4-1/2 - Dacromet and KodaGuard - 3,500 lbs # K2R35DKG which will install right over your current hubs. I also recommend using the Kodiak Hydraulic Brake Line Kit - Single Axle - 18' # 18SI-BLKIT which will give you flexibility for your brake calipers and folding coupler connection. Then you can use the Titan Zinc-Plated Brake Actuator w/ Electric Lockout - Disc - Multi-Fit Ball - Bolt...
    view full answer...
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