Which Jeeps does the Alcon Rear Big Brake Kit for Jeep Wrangler fit?

Alcon lists the Rear Big Brake Kit for Jeep Wrangler for the JK Wrangler, the JL Wrangler and the JT Gladiator. Turn 14 lists this version for rear axles with 5 x 5 inch hubs. Jeeps on Currie 60 or 70 rear axles need one of the two Currie versions, which BA also stocks.

Does the Alcon Rear Big Brake Kit for Jeep Wrangler work with the factory ABS?

Yes. Alcon designs its truck kits around the stock ABS system, so the Rear Big Brake Kit for Jeep Wrangler installs as a plug-and-play upgrade without extensive modification, and the anti-lock, traction and stability systems keep working as they did with the factory brakes.

Is a big brake kit worth it on a Jeep Wrangler or Gladiator with larger tires?

For most built trucks, yes. Bigger tires, armor and gear add mass the factory brakes were not sized for. Alcon measured up to 14 percent less disc temperature rise, up to 35 percent lower pad work rate, up to 6 percent more available brake torque and up to 10 percent less pedal effort against the stock system, gains that show most on long descents and when towing.

What are the calipers made from and how are they finished?

The calipers use ductile iron housings, which Alcon chose for strength, stiffness and resistance to impact and fatigue. They are finished in epoxy acrylic paint over an acid zinc base for corrosion protection, with high-temperature seals from the Alcon motorsport range.

Does the Rear Big Brake Kit for Jeep Wrangler keep the parking brake?

Yes. Alcon states that the Rear Big Brake Kit for Jeep Wrangler retains and uses the OEM parking brake, so the Jeep keeps a working parking brake after the upgrade. That matters on a trail rig, where the parking brake holds the vehicle on a steep climb while you spot a line or recover another rig.

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Description

Alcon Rear Big Brake Kit for Jeep Wrangler JK, JL and Gladiator JT

Alcon’s Rear Big Brake Kit for Jeep Wrangler JK, JL and Gladiator JT fits four-piston ductile iron calipers and 330 x 22 mm rotors to the rear axle, and keeps the OEM parking brake working. It balances a Jeep whose front brakes are already upgraded. Turn 14 supplies the kit with brake lines, and Alcon designs it around the stock ABS so it installs without hydraulic changes.

Features

Four-piston ductile iron calipers in red, epoxy acrylic paint over acid zinc
Larger 330 x 22 mm rotors add brake torque and thermal capacity
High friction pads with more pad area for cooler running and longer life
High-temperature seals from the Alcon motorsport range
Designed around the stock ABS as a plug-and-play fit
Retains the OEM parking brake
Brake lines included, per Turn 14
Sold as a complete rear axle set

Specifications

Calipers: Four-piston, ductile iron
Rotor size: 330 x 22 mm
Axle and hub: Dana 44 rear axle with 5 x 5 inch hubs, per Turn 14

What’s Included

Four-piston rear calipers (L/R)
330 x 22 mm rear rotors (x2)
High friction brake pads (rear axle set)
Caliper mounting brackets and hardware
Brake lines

Applications

Jeep Wrangler: JK | 2007-2018
Jeep Wrangler: JL | 2018-present
Jeep Gladiator: JT | 2020-present

Notes

Turn 14 lists this kit for 5 x 5 inch hubs; Currie axles take the 5 x 5.5 or 6 x 5.5 hub kit
Performance figures are Alcon test results against the stock Wrangler brakes
Front kits are sold separately: JK and JL and JT
Brakes are a safety-critical system, and BA recommends installation by a professional shop

Frequently Asked Questions

Which Jeeps does the Alcon Rear Big Brake Kit for Jeep Wrangler fit? Alcon lists the Rear Big Brake Kit for Jeep Wrangler for the JK Wrangler, the JL Wrangler and the JT Gladiator. Turn 14 lists this version for rear axles with 5 x 5 inch hubs. Jeeps on Currie 60 or 70 rear axles need one of the two Currie versions, which BA also stocks.
Does the Alcon Rear Big Brake Kit for Jeep Wrangler work with the factory ABS? Yes. Alcon designs its truck kits around the stock ABS system, so the Rear Big Brake Kit for Jeep Wrangler installs as a plug-and-play upgrade without extensive modification, and the anti-lock, traction and stability systems keep working as they did with the factory brakes.
Is a big brake kit worth it on a Jeep Wrangler or Gladiator with larger tires? For most built trucks, yes. Bigger tires, armor and gear add mass the factory brakes were not sized for. Alcon measured up to 14 percent less disc temperature rise, up to 35 percent lower pad work rate, up to 6 percent more available brake torque and up to 10 percent less pedal effort against the stock system, gains that show most on long descents and when towing.
What are the calipers made from and how are they finished? The calipers use ductile iron housings, which Alcon chose for strength, stiffness and resistance to impact and fatigue. They are finished in epoxy acrylic paint over an acid zinc base for corrosion protection, with high-temperature seals from the Alcon motorsport range.
Does the Rear Big Brake Kit for Jeep Wrangler keep the parking brake? Yes. Alcon states that the Rear Big Brake Kit for Jeep Wrangler retains and uses the OEM parking brake, so the Jeep keeps a working parking brake after the upgrade. That matters on a trail rig, where the parking brake holds the vehicle on a steep climb while you spot a line or recover another rig.

About Alcon

Alcon Components has engineered racing brakes and clutches in Tamworth, Staffordshire, England, and has supplied brakes to top-level teams and constructors since 1983. Its hardware won world rally titles with Audi in 1984 and Volkswagen in 2016, put Alcon into Formula One with Beatrice-Haas in 1986 and made it the sole braking supplier to Formula E from 2014. On the road it supplied the carbon ceramic upgrade for the Bentley Continental GT and the foundation brakes for all 40 Aston Martin Valkyrie AMR Pro cars. In 2017 Alcon took a substantial stake in Pro-System of Mooresville, North Carolina, which machines the rotors, hats and hardware for Alcon brake kits sold in the US.

Additional Information

The Bulletproof Automotive website contains many thousands of products purchased in multiple different currencies. All of the prices are entered manually and accurately at the time of entry. Due to the consistently fluctuating international exchange rates, at times prices may not be able to be honored at their original intended rate. We apologize for any inconvenience this may cause, unfortunately our website is unable to compensate dynamically for what can at times be volatile changes in the cost of items due to currency values fluctuating, changes in prices from suppliers, changes in shipping and import duties, and other factors. Rest assured that any order you place on line will be at zero risk to you in this area. If in the event your order cannot be fulfilled at the original intended website price we will offer you a 100% refund, no questions asked. We will continue to do our best to maintain updated prices and we will always continue to offer our price match guarantees as well to ensure our prices are always the best for you. In short, prices may change without notice. It is always advised to give us a call prior to placing your order online to confirm availability and to confirm current pricing.

Shipping Policy

Items that are in stock in the US, either at Bulletproof’s warehouse or at a supplier’s warehouse, are generally delivered within 7-10 days. Special order items from overseas take considerably longer. As a courtesy Bulletproof offers delivery estimates to our customers which take into consideration manufacturer availability and shipping schedule. These estimates represent our best guess based on previous orders from the manufacturer and do not in any way imply a guaranteed delivery window. Many manufacturers work in a “just in time” inventory system and often take 2-20+ weeks to produce an item once an order is submitted. All deliverable items are then sent to our Japanese warehouse. Bulletproof ships a minimum of one full ocean freight container every month from Japan, oftentimes more than one a month. Ocean freight takes an average of 4 weeks. Typically it breaks down to one week in Japan for paperwork and customs, two weeks by boat and one week in US customs/clearance. Due to the wide number of variables between manufacturer and shipping schedules, delivery estimates are simply just that – estimates. We attempt to estimate conservatively and we usually deliver faster than our estimates suggest. It is not Bulletproof’s policy to guarantee delivery time of any special order item, this is impossible for us to do. By ordering you acknowledge that there is no required delivery ETA and an order may not be canceled or altered due to manufacturing or shipping delays, all ETA’s are provided as a best guess only. Please review the full Terms & Conditions here.

BP Pricing Difference

We do pricing a little differently on our JDM brands and we believe in making things simple and clear. No hidden fees or surcharges. Every price you see includes the shipping cost to our office in Los Angeles, California and all the associated taxes/duties/fees for bringing the products into the US. The only shipping you ever pay is from our facility in the US to your location. Be wary of resellers that don’t include the cost of international shipping in their pricing on JDM parts. While we believe we’ll always have the lowest all-in price on JDM products, we offer a price match guarantee for all authentic parts purchased from authorized dealers as well. For many international customers, it’s much more affordable to ship from the USA than from Japan directly, as the air freight and ocean freight costs are typically much less. However, for customers looking to ship directly from Japan outside of North America, or domestically in Japan, we can provide pricing specifically for that scenario. Please do not hesitate to contact us with any pricing questions or concerns. Please email us at sales@bulletproofautomotive.com with any inquiries.

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Alcon Rear Big Brake Kit for Jeep Wrangler JK, JL and Gladiator JT [ALABKR5059D12]

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Alcon Rear Big Brake Kit for Jeep Wrangler JK, JL and Gladiator JT

Features

Specifications

What’s Included

Applications

Notes

Frequently Asked Questions

About Alcon

Reviews