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Up to $600 rebate on brake kits through December
Up to $600 rebate on brake kits through December

2020+ GMC Yukon/Yukon XL Front Big Brake Kit by Alcon

by Alcon
SKU: BKF1559BF58
Original price $4,100.00 - Original price $4,100.00
Original price
$4,100.00 - $4,100.00
Current price $4,100.00
2020+ GMC Yukon and Yukon XL big brake kit by Alcon. 6 Piston Heavy Duty Calipers over14.0" x 1.25" (355mm x 32mm) rotors. Spec'd for both on and off-road usage. High temperature operation with dirt and dust protection. 45% reduction in pad work rates!


Alcon's newest Heavy Duty Truck brake system for the 2020+ GMC Yukon and Yukon XL will substantially increase your braking power. If you've gone to bigger tires, more weight, more power than this is the right upgrade for you.

High temperature seals used in our motorsports program and compatible with the stock master cylinder so no additional ugprades are needed.

These fit under stock and most aftermarket 17" wheels so you don't need to upgrade or change them. Comes with all hardware and brake pads.

What are the performance Specs?

  • Up to 45% reduction in pad work rate
  • Up to 3% reduction in disc temperature rise
  • Up to 6% increase in available brake torque
  • Up to 6% reduction in pedal effort


  • 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 andincreases pad life

{tab=About the GMX Yukon}


The 2020 Yukon and its long-wheelbase sibling, the Yukon XL, excel in carrying lots of people and their loot, but when it comes to both driving pleasure and image, the Mercedes-Benz GLS-Class is a better buy. The interior materials of the Yukons are also disappointing, especially when compared with their very nearly identical corporate cousins, the Chevy Tahoe and the Suburban. Under the hood of the Yukon is a 5.3-liter V-8; the Yukon XL has a 6.2-liter V-8. While the Yukon twins have their shortcomings, when you need to tow a trailer and transport the whole family, few SUVs can compete.

What's New for 2020?

Changes to the 2020 Yukon and Yukon XL are limited to paint colors: Carbon Black metallic is added, while Pepperdust is deleted.

Pricing and Which One to Buy


Our pick would be the long-wheelbase Yukon XL, which offers a giant interior with room for plenty of people and cargo. It also features the bigger V-8, which motivates the XL with alacrity. We'd avoid the too-pricey Denali trim and instead choose the SLT, which offers heated and cooled front seats, power-folding second- and third-row seats. It also includes driver-assistance technology in the form of blind-spot monitoring, rear cross-traffic monitoring, forward-collision warning, and lane-keeping assist. We'd then add the Heavy Duty Trailering package to take advantage of the XL's pulling power. All-wheel drive is available on all Yukons for $3000.

Engine, Transmission, and Performance

The Yukon's naturally aspirated V-8 engines get the job done the old-school way: with displacement. The larger, son-of-Corvette 6.2-liter is an excellent mate for this heavy SUV. An available 10-speed automatic transmission adds a dose of modernity. The Yukon's standard powertrain is a 355-hp 5.3-liter V-8 engine paired with a six-speed automatic and rear-wheel drive. In the larger, heavier Yukon XL, it accelerates smoothly but unhurriedly. Either V-8 is relaxed and quiet on the highway, and both can be ordered with a selectable all-wheel-drive system. Rear-drive models can tow up to 8500 pounds, and all-wheel-drive versions are rated up to 8200 pounds.

The tall, heavy Yukon responds slowly to steering inputs, but the chassis reacts with surprising alacrity to spirited driving. The base suspension on our test truck shrugged off pavement blemishes without ever feeling flustered or unsettled, and the Yukon proved as comfortable as many a luxury sedan when wafting down the highway. We never experienced harsh impacts despite Michigan's famously pockmarked roads, but Denali models, which have standard adaptive dampers (called Magnetic Ride Control), have a much sharper, less comfortable ride. There's not a vehicle in the class that can stop on a dime, though most come to rest in similar distances. The Yukon's brake pedal feels substantial and responds in a stable, linear fashion.

View Photos

Fuel Economy and Real-World MPG

In a class where fuel efficiency is an afterthought, the Yukon employs some tricks to save gas, but its appetite for fuel remains healthy. The Yukon uses a cylinder-deactivation system that allows the engine to operate on four or all eight cylinders, depending on your need for speed; all eight cylinders are rarely employed around town. The 6.2-liter V-8 and 10-speed automatic proved to be slightly more efficient in the EPA's tests than the previous eight-speed was, but those gains didn't translate to our real-world highway test, where the new powertrain returned 20 mpg—1 mpg less than the old one.

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Interior, Comfort, and Cargo

The Yukon's interior is not lacking in features, especially in the upper trim levels. The SLE model is available with a front bench seat, which ups its capacity to nine passengers. The mid-level SLT trim adds leather, front bucket seats, and power-folding second and third rows; it can also be ordered with second-row captain's chairs. Even so, the full list doesn't add up to the sum of its parts. The interior materials and build quality don't live up to GMC's luxury aspirations or the high price on the window sticker, and the third row is tight for all but children. In both models, the high floor in the third row forces knees skyward and makes comfort impossible.

The long-wheelbase Yukon XL has massive carrying capacity at only a slight cost premium. We were able to fit 13 carry-on bags behind the third row of the Yukon XL we tested, matching the number put up by a five-passenger Range Rover. The available power-folding mechanisms for the rear rows are crucial if you hope to avoid clambering into the cargo area to stow them. Front-seat passengers enjoy a center console so wide that driver and passenger will never so much as brush elbows. That console easily harbors several water bottles or a medium-size purse.;0,0&resize=480:*&frame=1&lqip=yes"); background-size: 100%;">
View Photos

Infotainment and Connectivity

GMC's infotainment system has practically every feature available on the market and an easy-to-use interface. The navigation-equipped 8.0-inch touchscreen we tested had large, easy-to-read graphics and generous touch zones, so users won't be required to pinpoint a tiny icon while the vehicle is moving. It's as intuitive as many smartphones, and it responded quickly to our inputs. The interior has enough USB ports and other outlets to charge an army of smartphones.

Safety and Driver-Assistance Features

Overall Safety Rating (NHTSA)

The Yukon has not been fully tested by the Insurance Institute for Highway Safety, but it delivered a solid performance in its National Highway Traffic Safety Administration exam. A bevy of driver-assistance technology is standard in all but the base trim level, but at this price, we'd expect at least some of that tech to be standard across the board. Key safety features include:

  • Available forward-collision warning and low-speed automated emergency braking
  • Available lane-departure warning and lane-keeping assist
  • Available blind-spot monitoring and rear cross-traffic alert

Warranty and Maintenance Coverage

GMC's warranty includes one complimentary scheduled maintenance visit within the first year of ownership. Still, it's not the best warranty coverage; other manufacturers offer longer periods of coverage when it comes to limited warranty or roadside assistance.

  • Limited warranty covers 3 years or 36,000 miles
  • Powertrain warranty covers 5 years or 60,000 miles
  • Complimentary maintenance covers one visit in the first year


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