Overview
The Baer Brakes 4402001MG is a Pro Plus rear brake kit finished in Monster Green, built for Jeep vehicles that have the factory rear end. Baer’s manufacturer list covers the 2007–2018 Jeep Wrangler (JK), the 2018–2025 Jeep Wrangler (JL) and the 2020–2025 Jeep Gladiator (JT). Baer markets the system as its 36 inch Pro Plus design.
The kit pairs a 2-piece slotted, drilled and zinc plated rotor with a 6-piston floating caliper. The rotors come pre-assembled with NAS high grade stainless hardware, and the brackets and hardware needed to mount the system are included. The kit uses the D0731 brake pad type, so pads in that FMSI number are the replacement reference.
Key features
- 2-piece, 6-piston 6P caliper manufactured in Phoenix, Az
- Components CNC machined from US sourced forged or billet aluminum
- Powder coated Monster Green finish
- Stainless steel pistons, abutments and noise suppression clips
- Staggered pistons meant to minimize uneven pad wear
- Dual seals guard against dust, weather and pressure
- 2-piece slotted, drilled, zinc plated rotor with billet aluminum hat
Pad and rotor wear
Rear rotors and pads wear at different rates depending on how the vehicle is driven. Heavy descents, towing and frequent stop-and-go traffic put more heat into the rotor, and a hot rotor is often where uneven wear or a pulsing pedal first shows up. Slotted and drilled rotors help shed gas and water, but they do not stop normal wear, so the surface still needs periodic measurement.
When replacing pads, stay with the FMSI number you are working from so the friction material matches the rotor surface. Bed in new pads gradually after installation. Check pad thickness at each service and replace the pads before the backing plate contacts the rotor, which can score the surface and shorten its life.
- Pulsing or vibrating pedal under braking
- Squealing that continues after pads are seated
- Scoring or grooves across the rotor face
- Pad material worn close to the backing plate
- Brake fluid level dropping in the reservoir
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4402001MG |
| UPC | 90127941591 |
| Sold as | Kit |
| Axle | Rear |
| Caliper color | Monster Green |
| Caliper | 6-piston 6P, floating |
| Rotor type | 2-piece, vented |
| Rotor outside diameter | 14.36 inch |
| Rotor thickness | 1.1 inch |
| Rotor surface | Slotted, drilled and zinc plated |
| Minimum wheel diameter | 18.0 inch |
| Lug count | 5 lug |
| Wheel bolt pattern | 5×5.00 inch |
| Pad FMSI number | D0731 |
| Template | Q145P |
| Emission code | 6 |
| Grade | Performance |
| Country of origin | USA |
Vehicle fitment
Baer’s manufacturer fitment list covers the OE rear end on these vehicles: 2007–2018 Jeep Wrangler (JK), 2018–2025 Jeep Wrangler (JL) and 2020–2025 Jeep Gladiator (JT).
Other Jeep models, and other model years outside these ranges, are not on this list. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
The parking brake is re-used from the OE setup, so this kit contains no new park brake hardware. Brake hoses are not included, so have them on hand before starting. Because the minimum wheel diameter is 18.0 inch, check clearance with the Q145P template before mounting your wheel.
Brake work on a rear disc system is best handled by someone familiar with hydraulic brake service.
What’s included
The kit includes the pre-assembled 2-piece rotors with stainless hardware, the Monster Green 6-piston calipers, and the brackets and hardware needed for installation.
Not included: brake hoses.
