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20+ Years of Alcon Experience. FREE SHIPPING on all Brake Kits (USA) - Open M-F 8-5
20+ Years of Alcon Experience. FREE SHIPPING on all Brake Kits (USA) - Open M-F 8-5

Alcon Big Kit for Dodge Ram TRX (2021+)

SKU BKF1559AX75
Popular Item Save 9% Save 5%
Original price $4,100.00 USD
Original price $4,100.00 USD - Original price $4,100.00 USD
Original price $4,100.00 USD
Current price $3,880.00 USD
$3,750.00 USD - $3,880.00 USD
Current price $3,880.00 USD
⭐ All Brake Kits ship FREE to the USA.
✔️Guaranteed Fit for Your Vehicle
✔️Expert Support from the Largest Alcon Dealer in the U.S.
Version: BKF1559AX75 (two piece rotor)
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This information is a general guide for wheels that fit this brake kit. For ✔guaranteed fit (only applicable if you buy direct from Alconkits.com) check using the wheel template below. Instructions on use.

Fits under OE and many aftermarket 18" wheels. Use the downloadable wheel template below to check.

Designed to fit OE 18" wheels.

CLICK HERE to download our wheel fitment template and see if these will clear your wheels.

Explore common maintenance items for this brake kit.

Brake Pads: PNS4415X527S.4

Brake Rotors: DKF2146X296C24

Replacement Calipers: CIR1559AX52HZL021A25

Pad Retainer Kit: PSR4415X627

Bracket Kit: BSK4415X626

Seal Kit: CSK484848EW761

Specifications:

Manufacturer:
Alcon Brakes
SKU:
BKF1559AX75
UPC:
854071008874
Shipping Weight:
105.0 lbs
Version:
BKF1559AX75 (two piece rotor)

PRODUCT INFORMATION

Alcon 2021+ RAM TRX Big Brake kit. Equipped with six piston HD Calipers with MASSIVE 376x42mm (14.8" x 1.65") rotors. Fits under stock 18" wheels and many aftermarket wheels. We can custom powdercoat them with your color choice.
  • BKF1559AX75 - Original version
  • BKF1559AX95 - Updated version: Shipping as of Feb 1

Note - parts are backwards and forwards compatible between AX75 and AX95

Alconkits, the Alcon Experts. Lifetime technical support.

This kit come out of research and knowledge from Alcon off-road racing and armored programs. Calipers are extremely durable and designed specifically around the TRX. No changes to your truck are required including the master cylinder. You will get a firmer more confident brake pedal, and overall better performance.

Alconkits provides free lifetime technical support when you purchase from us. We are the leaders in Alcon Brake Systems and have customers in motorsport, off road, and armored systems so we can steer you in the right direction. With over 20 years Alcon experience, why would you trust anyone else?

Review installation instructions here.

Gains in performance over stock braking system:

  • Up to 12% increase in available thermal mass
  • Up to 8% reduction in pad work rate
  • Up to 7% increase in available brake torque
  • Ductile Iron caliper housing providing maximum strength and stiffness as well as high resistance to impact and fatigue
  • Epoxy acrylic paint over acid zinc finish for maximum corrosion protection
  • High friction pads increase stopping power
  • Larger rotors increase brake torque and thermal capacity, reducing potential for brake fade
  • Increased pad area reduces temperatures and increases pad life• Increased pad area reduces temperatures and increases pad life

FINISH OPTIONS:

If you're looking for something extra special - we are offering a customization service for these calipers. Our custom shop will powdercoat these for you. This process takes 2-3 weeks. Once you order we will contact you to finalize your color choice and get started!

ADD THIS TO YOUR CART FOR CUSTOM COATING.

High temperature seal material as used in highest levels of motorsport

Alcon RAM TRX Calipers
  • Wiper seal on every piston for dirt exclusion
  • Fits stock 18" wheels and Many 18" or larger Aftermarket wheels
  • Compatible with stock Master Cylinder

Worried about additional weight?

We frequently get questions about the weight of our off-road brake systems compared to stock and aluminum systems. The fact is that this aspect of the brake system is important, but not really a significant factor.

Power loss/mass increase due to extra rotating weight is very small compared to the additional rotating mass of tires or heavy duty wheels. The rotors are very near the rotation center of the wheel and will have a negligible impact, especially compared to the tires. Power loss is generally felt as 1 HP per 7lbs.

Why upgrade the TRX Brakes?

If you're looking to improve the braking performance of your Ram TRX, Alcon has got you covered with their high-performance brake upgrade. The Ram TRX is a powerful truck that demands heavy-duty braking power, especially if you plan on using it for towing or off-road adventures. Alcon's brake upgrade is designed to provide enhanced braking power and reliability, giving you the confidence to tackle any terrain with ease.

The Alcon brake upgrade includes a range of components such as brake calipers, brake discs, brake pads, and brake rotors that are specifically engineered to provide improved performance and durability. The brake calipers are made from high-grade materials and are designed to provide maximum clamping force, ensuring optimal stopping power. The brake discs are also constructed from high-quality materials, providing improved heat dissipation and reducing brake fade, even under extreme conditions.

The brake pads included in the Alcon brake upgrade are also specially designed to provide consistent performance and excellent modulation. This allows you to precisely control your braking, providing a more comfortable and confident driving experience. Additionally, the brake rotors are designed to provide enhanced cooling, reducing the risk of brake fade and extending the life of your braking system.

Alcon's brake upgrade is not only designed for improved performance but also for ease of installation. The brake kit includes everything you need to upgrade your existing brake system, including brake lines and brake fluid. This makes the installation process simple and hassle-free, allowing you to get back on the road or trail in no time.

In summary, if you're looking to improve the braking performance of your Ram TRX, the Alcon brake upgrade is an excellent choice. With its high-quality components and ease of installation, you'll enjoy improved braking power and reliability, allowing you to tackle any adventure with confidence. So why wait? Upgrade your Ram TRX brakes today with Alcon.

What's in the box?

  • Left Caliper CIR1559AX52HZL021A01 (1)
  • Right Caliper CIR1559AX52HZR021A01 (1)
  • Pads PNS4415X512S.4 (4)*
  • Left Rotor DIA2146X296C24L (1)
  • Right Rotor DIA2146X296C24R (1)
  • Bracket Kit BSK4415X626 (2)

Items needed for Install:

  • Standard hand tools
  • Torque Wrench
  • Brake Fluid - 2 pints recommended

By purchasing the Alcon TRX big brake kit from AlconKits.com, you can trust that you are getting genuine Alcon products and excellent customer service. Don't settle for mediocre braking - upgrade to Alcon and experience the difference.



Why is the Alcon ram trx brake upgrade better than the competition?

The Alcon RAM TRX brake upgrade stands out from the competition due to its superior engineering, quality materials, and rigorous testing. ALcon uses advanced CAD software and simulation tools to design brakes that perform exceptionally well under extreme conditions. Alcon's high-quality materials and meticulous testing ensure maximum durability and reliability. Additionally, Alcon has a long history of success in motorsports, where their brakes are trusted by top racing teams. By choosing the Alcon TRX brake upgrade, you can be confident that you are getting the most unbeatable braking performance and reliability.

What are the best features of the Alcon RAM TRX brake upgrade

The Alcon RAM TRX brake upgrade offers several features that make it an exceptional choice for those seeking superior braking performance:

  1. Heat Dissipation: The kit utilizes a larger rotor diameter and caliper size, which improves heat dissipation, allowing for more consistent braking performance under heavy use.

  2. Reduced Brake Fade: The high-performance brake pads and larger surface area of the rotors ensure a reduction in brake fade, which can cause the brakes to feel less effective and more prone to wear.

  3. High-Quality Materials: The brake components are constructed with high-quality materials such as billet aluminum and stainless steel, ensuring long-lasting durability and corrosion resistance.

  4. Advanced Engineering: The brakes are designed using advanced CAD software and simulation tools, allowing for optimal performance and safety.

  5. Easy Installation: The Alcon RAM TRX brake upgrade is designed to be a direct replacement for the factory brakes, making installation straightforward and hassle-free.

Overall, the Alcon RAM TRX brake upgrade offers exceptional braking performance, reduced brake fade, and long-lasting durability, making it an excellent choice for anyone looking to upgrade their truck's braking system.

SKU: BKF1559AX95 will supercede BKF1559AX75

Alcon Big Brake Kit common questions

Alconkits - the primary Alcon distributor

Why should you buy direct from AlconKits.com?

General retailers and marketplaces list Alcon brake kits, but they typically cannot advise on fitment, wheel clearance, pad compounds, or long-term service parts. You can buy Alcon Brakes from lots of places - but you SHOULD buy them from Alconkits.com. Alconkits.com is a specialist distributor focused exclusively on Alcon systems.

What support do I get when buying from Alconkits.com?

You get brake experts live every time. We answer the phone with 25 years of Alcon Brakes support. Our experts will help you choose the right kit, with the right fit, guaranteed. Plus, when you need replacement parts and service knowledge, you will only get that from Alconkits.com - not someone who just sells general automotive parts.

What happens if I need pads, rotors, or service parts later?

This is an excellent question to ask. We stock replacement parts for everything we sell - and maintain a full cross-reference catalog for all compatible parts. When you buy from Alconkits.com an authorized primary distributor of Alcon Brakes you will get a lifetime of advice and support that other vendors cannot match.

Is Alconkits.com an authorized Alcon distributor?

Yes. You can find authorized dealers on the manufacturers website - and we are seen as one of the largest most knowledgeable dealers in the world, and certainly in the United States.

What are the main reasons people choose Alconkits?
  1. Factory-engineered systems designed for brake performance and durability require expert advice
  2. Lifetime technical support included when purchased from Alconkits.com.
  3. Support beyond just sale, we help you select pads, ensure fitment, and service your brakes.

In short, you want an expert driven purchase decision, from a vendor that provides value beyond the product, with service, support, and expertise. That is the Alconkits.com promise delivered every day.

Installation

What tools do I need to install?

Our brake kits require common hand tools for installation. You will need a torque wrench, brake fluid (2 pints), and loctite.

What if I run into issues while installing?

We pride ourself in expert advice. You can call or text us at 630-360-2548 for expert technical and installation advice.

Are any other modifications required?

For OEM installations where wider rotors are fitted, you should expect to remove or trim the rotor dust/heat shield. This often interferes with larger rotors but is no longer needed due to our upgraded components.

Will I need a new Master Cylinder

No. All of our brake kits are designed specifically to work with the hydraulic ratio of your stock master cylinder

Do I need wheel spacers

We provide a fitment template for you to check clearance in advance. In some cases a small spacer may be required and we provide those when we are sure they are needed.

Are brake pads included?

Yes. We include the appropriate brake pads for all our brake kits. In some cases we offer multiple compounds for you to customize your experience. We stock a wide variety of pads for Alcon Brake kits here.

Break In questions

Do I need to brake in new rotors/pads?

Yes! We highly recommend following our brake pad/rotor bed in process. This ensures that an even layer of pad material is deposited on the rotor to eliminate shudder, increase rotor life, and to heat temper the new rotors for longer life.

What about noise and dust?

Noise and dust are related to the brake pad compound. Higher temp pads have more metallic composition and will therefore increase potential noise and dust the more aggressive the pad. For squealing issues we recommended loosening the caliper and re tightening it. This will sometimes change the caliper "frequency". Additionally "sticky shims" or our titanium pad shims will reduce noise.

Operational Questions

Is this compatible with my ABS?

Yes! We test our brakes to ensure they are fully compatible with your stock ABS on all models we release.

How long do they last?

Lifetime of components is massively variable based on how they are used. High dust/dirt/salt environments will wear seals out more quickly. Heavy Duty or Track use will also affect rotor and pad life.

What is the warranty?

We support the manufacturers 12 month/12000 mile warranty against factory defects and material issues. You can find more details here.

Where can I learn more about your brakes?
.
Free Shipping

Free on all brake kits to the continental USA

Official Alcon Distributor

Expert Advice, Products, Support

Text or Call

+1 (630) 360-2548

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Click "Assistance" below during business hours.

  • 5 stars: 23 (96%)
  • 4 stars: 1 (4%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
This product has no reviews of its own. The merchant grouped it with related products, so the reviews shown are from across that group.
A
Adam
Tundra

Man. These stop so incredibly well, and still fit the 17in wheel!…unlike all of the other big brake kit options. My supercharged long travel truck was in dire need of brakes that could keep up. These are it! Will be getting the rear ASAP.

Adam, its always great to hear good news. Thanks for letting us know. When you decide to do the rears, we're here for you! Chris & Joe.

K
Kai
LX570 Front & Rear Stage 2 Kit

Finally got this kit installed and the descriptions are 100% accurate. The brakes stop hard and required pedal effort is lower. A welcome surprise was modulation has improved over the OEM brakes. It took a while to arrive to the US with the global shipping situation but well worth it. Chris and Joe were extremely helpful throughout and in constant communication. You can't go wrong with these.

Hi there,

Thank you so much for taking the time to leave a review for our Toyota LC200 and Tundra Big Brake kit. We are thrilled to hear from you and we were able to be helpful and communicative during the wait. This kit is definitely one of our most popular and great to hear that it has met your expectations. Thank you for choosing AlconKits and happy stopping!

Best,
The Alconkits team.

M
M.m.j.

Best brakes in the world !!

S
Stew
Great customer service

JOE ( sales) and CHRIS (owner ) are both GREAT to deal with

M
Michael
Great product

Easy install, everything fit perfectly.

D
Dave
Tundra BBK

Excellent service, product is very beefy looking for a long service life before a refresh.

E
Enrique
Tundra front and rear BBK

Have had these brakes on my 2018 Tundra for some time now. Hands down huge improvement over stock. My son is now running these on his Tundra also. Extremely satisfied with this upgrade. Alcon has been easy to work with.
Highly recommend this setup, front and rear for any Tundra.

T
Thor
Great Customer Service

I ordered my Roush / Alcon brake kit online and the next day I received an email from Chris just to confirm my application and to make sure it would work. I called Chris the next day to thank him for taking the time to make sure I was happy. I have yet to install my kit, I will have that done at SVC Offroad in Utah later this month with the rest of my Raptors build. That said, the parts did arrive in a timely fashion and were well packaged. So far, I am quite satisfied with this purchase and follow up customer service.

M
Mike
Such good brakes for my Tundra

Bought the front and rear kit after we did a lot of add-ons for my Tundra - what a difference stopping now. I'm not scared on the highway when we're loaded up for a trip with all the gear, roof tent, etc... Everyone should do this upgrade - and sooner than you think!

M
Mike
Such good brakes for my Tundra

We put a ton of modifications on our Tundra and braking was getting just a bit lazy. Can't believe I waited so long to do these - they're amazing. No longer worried on the highway about stopping in time.

R
Roger
Customer review

Thanks for hooking us up. Sorted our armored LC braking easily. Appreciate it guys.

A
Alessio
Customer review

Fit was easy and all components included. When you guys come out with one for my BMW call me!

a
anonymous
Customer review

Ok these are the best brakes on any truck i ever owned. I just wish you guys would have offered the custom colors when I bought them. I saw some you did in signal orange the other day in Moab. Damn... ...maybe when I have them rebuilt.

P
Pacific
Customer review

I bought these a year after I installed the front kit. WIsh I had never waited. Definitely made a difference.

A
Abilio
Customer review

The custom color job you guys did is killer! Perfectly matches my suspension kit. Thanks guys.

M
Mike
Customer review

Completely improved the braking on my JL after I did 37's. Wish I had done this sooner and saved a few scary moments.

M
Moe
Customer review

This really was a DIY kit. Thanks for recommending the power bleeder. Way easier than pumping the brake pedal all day.

a
anonymous
Customer review

We saw these on UN vehicles all over. Now I know why. Stops way better now.

a
anonymous
Customer review

Fit perfectly under 17's.

E
Ernie
Customer review

Amazing power. Thanks!

B
BelindaJex
Customer review

My customer insist on Alcon here in Venezuela. Easy for us to put on his truck. Much better braking he says. These are the best.

M
Michael
Customer review

Hell yes. If I buy another Raptor I'm putting these on it again. Nothing short of amazing.

a
anonymous
Customer review

Finally a kit that I didn't need to go to silly 20 wheels. Would love it if you did something other than red though.

a
anonymous
Customer review

Amazing tech support to all my questions. Thanks Alconkits. Great product and service.

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