Overview
The Baer Brakes Extreme Plus rear brake system in Monster Green, part number 4262688MG, is a rear disc brake kit for the 2012–2018 Ford F-150. It is also made for the Ford Raptor in the same years. It uses a 1-piece monoblock 6-piston 6S caliper on a 15 inch, 2-piece slotted, drilled rotor with a billet aluminum hat.
This kit suits owners who run 19 inch or larger wheels and want a six-piston rear caliper on this truck platform. It works on 2WD and 4WD trucks and re-uses the factory park brake and hoses rather than supplying new ones.
Key features
- Monoblock 6S caliper with six pistons, built in Phoenix, AZ
- Staggered pistons designed to reduce uneven pad wear
- Stainless steel pistons, abutments and noise suppression clips
- Dual dust, weather and pressure seals
- CNC machined from U.S. sourced 2618 aluminum forging
- 2-piece slotted, drilled, zinc-plated rotor with billet aluminum hat
- Powder coated finish with a Monster Green caliper color
Choosing a rear brake upgrade
A rear caliper upgrade changes how the truck’s brakes share the work with the front axle. A six-piston monoblock caliper clamps the rotor with more even force, which helps the pads wear more evenly and keeps pedal feel consistent under repeated stops. Bigger rotors also add thermal capacity, so the brakes handle long descents and towing better than a stock setup.
Wheel choice matters as much as the caliper. The rotor and caliper need room inside the wheel, so measure the wheel’s inside clearance before ordering. Tires with a larger overall diameter change the final drive ratio and can rub the caliper at full steering lock, so plan the wheel and tire combination together.
Because the rear hardware is being swapped, inspect the factory park brake shoes or parts that remain in use. Worn parking brake components can limit the benefit of new rear brakes, and a quick look during installation avoids a second trip under the truck.
- Check wheel inside clearance before ordering
- Confirm brake fluid is fresh before bleeding
- Replace brake lines that show cracking or swelling
- Inspect rear rotors for scoring after the first few stops
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4262688MG |
| UPC | 90127942765 |
| Caliper | 6S, 1-piece monoblock, 6-piston |
| Caliper type | Floating |
| Caliper color | Monster Green |
| Rotor outside diameter | 15.0 inch |
| Rotor thickness | 1.25 |
| Rotor type | 2-piece, vented |
| Rotor surface | Slotted, drilled and zinc plated |
| Axle | Rear |
| Lug count | 6 |
| Wheel bolt pattern | 6x135mm |
| Minimum wheel diameter | 19.0 inch |
| Pad type | D1247 (FMSI) |
| Hose material | Re-uses OE hoses |
| Park brake | Not included; re-uses OE |
| Drive | 2WD, 4WD |
| Template | N125U |
| Grade | Performance |
| Emission code | 6 |
| Sold as | Kit |
| Country of origin | USA |
Vehicle fitment
It fits the 2012–2018 Ford F-150 in 2WD and 4WD trucks, and it also fits the 2012–2018 Ford Raptor. It covers the rear brakes of those trucks with the factory park brake re-used.
Installation notes
Compare the N125U template with the wheel you plan to use, since the minimum wheel diameter is 19.0 inch. The park brake is not part of the kit, so the factory park brake components are re-used and should be inspected during the swap. Brake work changes stopping performance, so bed the new pads and bleed the hydraulic system after installation.
What’s included
Monoblock 6S calipers, 2-piece rotors pre-assembled with NAS high grade stainless hardware, and all brackets and hardware.
Not included: Factory brake hoses and park brake components are re-used from the truck. Brake pads are D1247 type; check the package contents against your installation before starting.
