Overview
The Baer Brakes 4401001B is a black Pro Plus front brake system for the 2007–2017 Jeep Wrangler JK, aimed at owners whose trucks still use factory spindles and hubs. It couples a six-piston caliper with a 14-inch two-piece rotor, so the front brake parts come as one kit.
Baer makes the caliper in Phoenix, Arizona, and CNC machines the aluminum components from forged or billet stock obtained from US sources. The black finish is powder coated, and the pads are the D0731 type. Because the system is designed for wheels of 18 inches or larger, confirm wheel clearance first.
Key features
- Six-piston fixed caliper with a black powder coated finish
- Two-piece slotted, drilled, zinc-plated 14-inch rotor with billet aluminum hat
- Stainless steel pistons, abutments and noise suppression clips
- Staggered pistons to help even out pad wear
- Dual seals for dust, weather and pressure
- Pre-assembled rotors with NAS high grade stainless hardware
Wheel clearance and tire choice
Wheel clearance is worth checking before the brake parts are installed. The caliper and rotor sit inside the wheel, so the wheel face and spokes need enough room around the caliper body. Check clearance with the tire mounted, and turn the steering through its full range to make sure the tire does not touch the caliper or its hardware.
Tire size also affects braking. A heavier or larger tire adds rotating mass and can change how quickly the brakes respond. Keep tire pressures correct and rotate tires on schedule so that braking load stays even across the front axle. Recheck clearance after any change to tire size or wheel offset.
- Check caliper clearance with the tire mounted
- Turn the steering through full lock to confirm
- Recheck after changing tire size or offset
- Keep tire pressures within the recommended range
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4401001B |
| UPC | 844165051893 |
| Sold as | Kit |
| Axle | Front |
| Caliper | 6-piston (6P), fixed |
| Caliper color | Black |
| Rotor diameter | 14 inch |
| Rotor thickness | 1.15 inch |
| Rotor type | 2-piece, vented, slotted, drilled, zinc plated |
| Rotor hat | Billet aluminum |
| Pad FMSI number | D0731 |
| Lug count | 5 lug |
| Wheel bolt pattern | 5×5.00 inch |
| Minimum wheel diameter | 18 inch |
| Template | Q085P |
| Fitment note | With OE spindles and hubs |
| Grade | Performance |
| Country of origin | USA |
Vehicle fitment
Coverage for this kit is 2007–2017 Jeep Wrangler (JK) vehicles that have OE spindles and hubs.
The kit does not cover the Wrangler TJ, LJ or YJ, the 2018-and-later JL, or the Gladiator. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
The rotors come pre-assembled and the brackets and hardware are included, so the job is a bolt-on front replacement rather than a drilling or welding project. Use the Q085P template to check the wheel you plan to run, because Baer cannot guarantee fit with every wheel design.
What’s included
Included are the black six-piston caliper, the two-piece 14-inch slotted and drilled rotor assembly, and all mounting brackets and hardware.
Not included: brake hoses, which the kit does not supply.
