Overview
Part number 4302249FR identifies the Baer Brakes Pro Plus rear brake system in Fire Red. A 6-piston, 6P floating caliper clamps a 14-inch, 2-piece slotted, drilled and zinc plated rotor, and the assembly mounts to rear ends with a GM small pattern 10/12 bolt C-clip flange and 5×4.75/5×5.00 wheel bolts.
Baer builds the caliper in Phoenix, Arizona, with a powder coated finish and stainless steel pistons. The design uses D0731 brake pads and a staggered piston layout intended to limit uneven pad wear across the pad face.
Key features
- 6-piston, 6P floating caliper in powder coated Fire Red
- Staggered pistons for more even pad wear
- 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
- Stainless braided hoses and hardware included
Choosing a rear brake kit
A rear disc brake kit is best judged as a set of matched parts. The caliper, rotor, pads and backing plate are sized to work together, so swapping one part for a different brand can change pad contact, heat handling or wheel clearance. Before buying, match the axle flange and wheel stud layout, then confirm that the wheel has room for the rotor and caliper together.
Staggered pistons and dual seals help the caliper keep pad contact even and keep dirt and water out of the piston bore. Seals and pistons still wear over time, so a caliper that drags, leaks fluid or pulls to one side needs inspection. Keep the brake fluid fresh, since moisture in old fluid lowers its boiling point and can soften braking under heavy use.
- Match axle flange and stud pattern first
- Check wheel room for caliper and rotor
- Replace brake fluid on a regular service schedule
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4302249FR |
| UPC | 90127953099 |
| Sold as | Kit |
| Caliper | 6P |
| Caliper type | Floating, 6 pistons |
| Caliper color | Fire Red |
| 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
This system is matched to the rear end rather than a specific model or year. It is made for rear axles with the GM small pattern 10/12 bolt C-clip flange and the 5×4.75/5×5.00 wheel bolt pattern. A 14-inch rotor of this kind generally suits wheels 18 inches or larger, so check clearance first.
Confirm your vehicle’s year, model and trim before ordering. Compare your wheel against template Q110P, since Baer cannot guarantee wheel fit across every style.
Installation notes
The rotor assemblies are delivered with NAS high grade stainless hardware installed. The park brake cables are not part of the package and need to be planned separately.
What’s included
The kit includes the 6P caliper, the backing plate with a 1-piece park brake shoe assembly, the 14-inch rotor, and braided hoses with hardware.
Not included: Park brake cables.
