Overview
Baer Brakes’ Pro Plus rear brake kit, part number 4302249HO, pairs a 6-piston, 6P caliper in Hugger Orange with a 14-inch, 2-piece slotted, drilled and zinc plated rotor. It is designed 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.
The caliper is manufactured in Phoenix, Arizona, with a powder coated finish. Staggered pistons help even out pad wear, and the kit uses the D0731 pad type with template Q110P for wheel checks. NAS stainless hardware comes already fitted to the pre-assembled rotors.
Key features
- 6-piston, 6P floating caliper with stainless steel pistons and abutments
- Staggered pistons designed to minimize uneven pad wear
- Dual dust, weather and pressure seals
- Slotted, drilled, zinc plated 2-piece rotor with billet aluminum hat
- Backing plate that houses a 1-piece park brake shoe assembly
- Braided hoses and hardware included
Pad and rotor wear
Pads are the wear item in a disc brake system, and they are usually replaced before the rotor. Check pad thickness through the caliper window at each tire rotation or service. Uneven wear across the pad face can point to a sticking slide, worn guide pins or a seal problem, so the caliper should be inspected when wear is not even.
Slotted and drilled rotors shed heat and water differently from plain rotors, but the slots collect pad material and dust over time. Clean the rotor face when pads are changed, and check for cracks running out from the drill holes. A rotor worn below its minimum thickness should be replaced, and new pads should go on with it so the surfaces bed in together.
- Check pad thickness at each service
- Inspect caliper slides when wear is uneven
- Replace pads and rotors as a matched pair when possible
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4302249HO |
| UPC | 90127953136 |
| Sold as | Kit |
| Caliper | 6P |
| Caliper type | Floating, 6 pistons |
| Caliper color | Hugger Orange |
| 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
The system is matched to the rear end rather than a specific model or year. It is built 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. The 14-inch rotor suits most 18-inch or larger wheels.
Confirm your vehicle’s year, model and trim before ordering. Baer recommends checking the wheel against template Q110P, because the company cannot guarantee fit with every wheel style.
Installation notes
This kit leaves out the park brake cables, so those need to come from another source. The template is the practical check for wheel clearance before the rotor goes on.
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.
