Overview
The Baer Brakes Extreme Brake System, part number 4261397MG, is a front disc brake upgrade for the 2010–2026 Ford F-150, covering 2WD and 4WD trucks including the Raptor. It combines a 1-piece Monoblock 6-piston, 6S caliper in Monster Green with a 15-inch, 1-piece slotted, drilled, zinc-plated rotor, and it is sold as a complete kit.
Baer designs the Extreme system for the front axle and includes the mounting brackets and hardware, so the caliper and rotor come supplied together. Because the rotor is 15 inches and the kit requires wheels of 19 inches or larger, owners planning a front brake upgrade under 19-inch wheels should check clearance with template N063U before ordering. The key specifications are set out in the table below.
Key features
- 1-piece Monoblock, 6-piston, 6S caliper manufactured in Phoenix, AZ
- CNC machined from 2618 aluminum forging
- Powder coated Monster Green finish
- Stainless steel pistons, abutments and noise suppression clips
- Staggered pistons to minimize uneven pad wear
- Dual seals for dust, weather and pressure
- 1-piece slotted, drilled, zinc-plated vented rotor
- Uses the popular D1247 FMSI pad type
Choosing a front brake upgrade
A front brake upgrade on a full-size pickup changes how much heat and load the front axle handles, especially when towing or running heavier tires. A larger rotor and multi-piston caliper spread pressure more evenly across the pad, which helps stopping feel consistent under repeated use. Pad choice matters as much as the hardware, so the pad compound should suit the way the truck is driven.
Wheel clearance is the first thing to settle. Measure the inside of your wheels against the caliper body and rotor before buying, and confirm the wheel style with the template check. Related parts often get replaced at the same time, such as brake fluid, front wheel bearings and tires, since a stronger brake system is only as good as the rest of the front end.
- Check wheel clearance against the caliper before ordering
- Bed in new pads and rotors gradually after installation
- Flush brake fluid when the system is opened
- Inspect hoses for cracking or swelling
- Recheck lug nut torque after the first drives
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4261397MG |
| UPC | 90127942246 |
| Sold as | Kit |
| Application | Ford F150 10-26 |
| Drive | 2WD, 4WD |
| Axle | Front |
| Caliper | 1-piece Monoblock, 6-piston, fixed, model 6S |
| Caliper color | Monster Green |
| Caliper material | 2618 aluminum forging, CNC machined |
| Caliper finish | Powder coated |
| Piston type | Stainless steel, staggered |
| Seals | Dual seals for dust, weather and pressure |
| Rotor outside diameter | 15.0 inch |
| Rotor thickness | 1.18 |
| Rotor construction | 1-piece, vented, slotted, drilled, zinc-plated |
| Minimum wheel diameter | 19.0 inch |
| Brake pad FMSI number | D1247 |
| Wheel lug count | 6 lug |
| Wheel bolt pattern | 6x135mm |
| Template | N063U |
| Brake hose | Re-uses OE hoses |
| Grade | Performance |
| Country of origin | USA |
Vehicle fitment
This kit is built for the front axle of 2010–2026 Ford F-150 trucks, covering 2WD and 4WD models, including the Raptor. The application is recorded as Ford F150 10-26 for these trucks only.
The kit is for the F-150 only. Ford Ranger and Super Duty models are outside its application, and it is not for rear axles. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
Use template N063U to compare the caliper and rotor with the wheel you plan to run, since it is impossible for Baer to guarantee fit with every wheel style or manufacturer. The kit includes all mounting brackets and hardware, and the factory brake hoses are re-used rather than replaced. Brake work affects stopping performance, so have the installation checked by a qualified technician before driving the truck.
What’s included
The kit includes the 1-piece Monoblock 6-piston, 6S caliper, the 15-inch 1-piece slotted, drilled, zinc-plated rotor, the dust and weather seals, and all mounting brackets and hardware for the 4261397MG Extreme system.














