Super Duty Big Brake Kits: 2017-2022 vs 2023+ Alcon Compared

If you own a 2017-2022 F-250 or F-350, Alcon's front-only kit gets you six-piston military-grade calipers at an overstock price, with the option to add a matching four-piston rear kit separately. If you're on the 2023 or newer platform, Alcon's complete front-and-rear package upgrades all four corners with six-piston calipers in a single purchase, and it's the only kit engineered specifically for that generation's geometry.

Spec Comparison

2017-2022 Front Kit: Who It's For and What to Know

The 2017-2022 Ford Super Duty Front Big Brake Kit is Alcon's front-axle upgrade for the previous-generation F-250 and F-350, and it's currently available as overstock. That matters because it gives you access to the same military-lineage six-piston hardware at a significant discount from the standard retail price.

The caliper itself comes directly from Alcon's armored vehicle program. Red ductile iron housings, motorsport-grade seals, and a wiper seal on every piston to keep dirt out of the bores. Those features aren't marketing additions for a truck kit; they exist because the caliper was designed for use in environments far harsher than a mountain pass with a fifth wheel behind you. For anyone doing serious towing, heavy off-road work, or running a built or armored vehicle, that caliper lineage is meaningful.

The six-piston setup clamps a 363 x 38 mm slotted rotor, which shares its outer diameter with the factory rotor. That's intentional: the upgrade comes from the caliper, pad area, and rotor thermal mass, not from a dramatic rotor diameter jump that would force wheel changes. You do need a minimum 18-inch wheel on the front. The kit is fully plug-and-play with the OEM ABS system and retains the factory parking brake, so there are no hidden modifications required.

The honest trade-off here is that it's a front-only kit. On a heavy truck pulling a loaded trailer, the fronts do the majority of the work under braking, so upgrading the front axle alone is defensible. But if you want balanced, four-corner Alcon hardware, you'll need to add the matching rear kit (SKU BKR5459P28), which uses four-piston calipers and the same 363 x 38 mm rotor dimensions. Buying both at current overstock and clearance pricing represents a meaningful saving over current retail. If your build is primarily about the look and the caliper color through your spokes, the front-only kit still delivers that at a lower entry cost.

2023+ Front and Rear Kit: Who It's For and What to Know

The 2023+ Ford Super Duty Front and Rear Big Brake Kit is engineered specifically for the current-generation F-250 and F-350 and is the only Alcon kit confirmed to fit that platform. It's a two-part purchase covering both axles, with six-piston calipers front and rear.

That rear six-piston spec is what separates this generation's package from the 2017-2022 setup. Where the older generation pairs a six-piston front with a four-piston rear, the 2023+ kit goes equal-piston all around. Both axles get the same red ductile iron housings, motorsport-grade seals, wiper seals per piston, and the epoxy acrylic over acid zinc finish. Alcon publishes marginally higher performance claims on this kit versus the 2017-2022 front: up to 15% reduction in pad work rate (versus 14% for the older front kit) and up to 6% reduction in pedal effort (versus 5%). Those are small differences in published numbers, but they reflect that the entire system, front and rear, was engineered together for this generation.

If you're buying a 2023 or newer Super Duty and want the complete Alcon upgrade, this is the straightforward answer. There's no separate search for a matching rear kit, no part-number cross-referencing, and no concern about whether a kit from a different generation fits your chassis. The front SKU is BKF1559AX99 and the rear is BKR1559K100; both are listed together on the product page.

The honest trade-off is cost. This is a full-truck upgrade at full current pricing, and it's the only option for the 2023+ generation. There's no front-only entry point if you want to stage the purchase. Minimum wheel clearance for this kit is also not confirmed in a published Alcon spec sheet, so confirm fitment with Alcon before ordering if you're running anything smaller than 20-inch wheels.

How to Choose

You have a 2017-2022 F-250 or F-350 and your priority is heavy towing or armored/off-road use: Buy the front kit and pair it with the rear kit. The front kit handles the lion's share of braking energy, but for a fully sorted system under max load, you want upgraded hardware on both axles. The current overstock and clearance pricing on both kits makes this the most cost-effective window to complete the set.

You have a 2017-2022 truck and want the look and the upgrade, but aren't running near the limits: The front kit alone is a legitimate upgrade. Six-piston Alcon calipers are visible through most open-spoke wheels, the hardware is genuinely overbuilt for street use, and you're not giving anything up in everyday driving by leaving the rear for later.

You have a 2023 or newer F-250 or F-350: The 2023+ front and rear kit is your kit. It's the only Alcon setup confirmed for that generation, and it covers both axles in a single order. If you're towing heavy, running a built rig, or simply want the most capable factory-compatible brake system available for the current Super Duty, this is the complete solution.

In either generation, these calipers share a lineage that started in Alcon's military armored vehicle program. That's not a tagline. It means the sealing, the thermal management, and the material choices were validated under conditions a truck will never see on a public road. For the buyers who need the performance, that's reassurance. For the buyers who want the hardware, it's the real story behind the red caliper.