Overview
The Baer Brakes 4402001FR is a Pro Plus rear brake system kit for Jeep vehicles with the factory rear end. It combines 2-piece slotted, drilled and zinc plated rotors with 6-piston Fire Red calipers that use the popular D0731 brake pad type.
The 2007-2018 Jeep Wrangler JK, 2018-2025 Jeep Wrangler JL and 2020-2025 Jeep Gladiator JT are the vehicles this rear kit fits. The rotors arrive pre-assembled with NAS high grade stainless hardware, and the 36 inch Pro Plus is sized for most 18 inch or larger wheels.
Key features
- 2-piece slotted, drilled and zinc plated rotor with a billet aluminum hat
- 6-piston, 6P caliper with a floating design and Fire Red finish
- Powder coated caliper finish
- Stainless steel pistons, abutments and noise suppression clips
- Staggered pistons designed to minimize uneven pad wear
- Dual seals for dust, weather and pressure
- CNC machined from US sourced forged or billet aluminum, manufactured in Phoenix, Arizona
Rotor care and runout
Rotor warping usually comes from uneven lug torque or repeated heat cycles without time to cool. A rotor that runs out at the hub will pulse the pedal and wear pads unevenly, so the mounting surfaces need to be clean and flat before the rotor goes on.
Tighten lug nuts in a star pattern to the specification in your service manual, and recheck them after the first few drives. Let the rotors cool between hard stops on a trail descent, and avoid leaving the vehicle with a parked load on hot brakes.
- Clean the hub face and rotor mounting surface
- Tighten lugs in a star pattern
- Check runout with a dial indicator when the rotor is off
- Re-check lug torque after the first few drives
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4402001FR |
| UPC | 90127941539 |
| Sold as | Kit |
| Pro Plus size | 36 inch |
| Axle | Rear |
| Rotor type | 2-piece slotted, drilled and zinc plated |
| Rotor construction | Vented |
| Rotor outside diameter | 14.36 inch |
| Min wheel diameter | 18.0 inch |
| Caliper | 6-piston (6P), floating |
| Caliper color | Fire Red |
| Pad FMSI number | D0731 |
| Template | Q145P |
| Lug count | 5 Lug |
| Wheel bolt pattern | 5×5.00 in |
| Fitment notes | w/OE Rear End |
| Includes park brake | No, re-uses OE |
| Grade type | Performance |
| Country of origin | USA |
Vehicle fitment
The kit fits the 2007-2018 Jeep Wrangler (JK), 2018-2025 Jeep Wrangler (JL) and 2020-2025 Jeep Gladiator, with the factory rear end.
The list does not include the Wrangler YJ, TJ or LJ generations, the Cherokee or the Grand Cherokee. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
The rotors come pre-assembled, and the brackets and hardware are included with the kit. Baer recommends checking the Q145P template against your chosen wheel before mounting, because the company cannot guarantee wheel fit across every wheel style.
What’s included
The kit includes the 6-piston rear calipers, 2-piece slotted, drilled and zinc plated rotors pre-assembled with NAS high grade stainless hardware, and brackets and hardware.
Not included: Brake hoses.
