Overview
The Baer Brakes Pro Plus rear brake system, part number 4302249MG, uses a 6-piston, 6P floating caliper on a 14-inch, 2-piece slotted, drilled and zinc plated rotor. It is made for rear ends with a GM small pattern 10/12 bolt C-clip axle flange and a 5×4.75/5×5.00 wheel bolt pattern, and it is finished in Monster Green.
Baer manufactures the Pro Plus caliper in Phoenix, Arizona, with a powder coated finish, stainless steel pistons and noise suppression clips. The system is designed around D0731 brake pads, and the billet aluminum hat on the rotor is part of the 2-piece design.
Key features
- 6-piston, 6P floating caliper with staggered pistons to reduce uneven pad wear
- Stainless steel pistons, abutments and noise suppression clips
- Dual dust, weather and pressure seals
- 2-piece slotted, drilled, zinc plated rotor with billet aluminum hat
- Backing plate with a 1-piece park brake shoe assembly
- Braided hoses and hardware included, with a DOT approved brake hose
- Powder coated Monster Green caliper
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4302249MG |
| UPC | 90127953150 |
| Sold as | Kit |
| Caliper | 6P |
| Caliper type | Floating, 6 pistons |
| Caliper color | Monster Green |
| Caliper finish | Powder coated |
| Rotor diameter (rear) | 14.0 inch |
| Rotor thickness | 1.15 |
| Rotor construction | Vented, 2-piece |
| Rotor surface | Slotted, drilled and zinc plated |
| Axle flange | GM 10/12 bolt C-clip, small car pattern |
| Wheel bolt pattern | 5×4.75/5×5.00 |
| Lug count | 5 lug |
| Minimum wheel diameter | 18.0 inch |
| Brake pad (FMSI) | D0731 |
| Template | Q110P |
| Brake hose DOT approved | Yes |
| Includes park brake | Yes |
| Park brake cables | Not included |
| Grade | Performance |
| Emission code | 6 |
| Country of origin | USA |
Vehicle fitment
Fitment is not listed for a specific vehicle. The kit targets the GM small pattern 10/12 bolt C-clip rear axle flange and the 5×4.75/5×5.00 bolt pattern, which identify the rear end, not a model or year. Baer says the 14-inch rotor fits most 18-inch or larger wheels.
Confirm your vehicle’s year, model and trim before ordering. Check the manufacturer’s specifications for your axle if you are unsure of the flange pattern.
Installation notes
Pre-assembly means the rotors arrive with NAS high grade stainless hardware already fitted. The park brake cables must be sourced separately. Compare the wheel with template Q110P before mounting, since Baer cannot guarantee fit with every wheel style.
What’s included
The kit includes the 6P caliper, the backing plate with a 1-piece park brake shoe assembly, the pre-assembled 14-inch rotor, and braided hoses with hardware.
Not included: Park brake cables.















