Overview
The Baer Brakes SS4 Plus rear brake system, part number 4262262CY, is a complete rear disc brake kit built around a 4-piston S4 caliper and a 13.0 Inch two-piece slotted, drilled and zinc-plated rotor. The kit is finished in Comp Yellow and is made for Ford 9 Inch Early Big Bearing rear housing ends with a 5×5.00 bolt pattern.
Baer’s backing plate does two jobs: it mounts the caliper and it houses a one-piece park brake shoe assembly, so the parking brake is built into the rear assembly rather than added separately. The rotor is rated for wheels of 17 inches or larger, matching the minimum wheel diameter Baer lists, so check wheel size before fitting. The caliper is manufactured in Phoenix, Az, and the listed country of origin is the USA.
Key features
- Four-piston S4 caliper manufactured in Phoenix, Az
- Caliper body CNC machined from US-sourced forged or billet aluminum
- Hard anodized aluminum pistons with stainless steel abutments and noise suppression clips
- Dual seals for dust, weather and pressure, with T compliant dust and weather seals
- Two-piece slotted, drilled, zinc-plated rotor on a billet aluminum hat
- Rotors pre-assembled with NAS high grade stainless hardware
- Powder coated finish
Pad and rotor wear
Rotor thickness is the measurement to watch as a brake system ages. Pads press against the friction surface on every stop, and over time that contact thins the rotor and can leave grooves, heat checks or a pulsing pedal. When any of those signs appear, the rotor should be measured against its minimum thickness and either resurfaced or replaced. Pads are usually replaced at the same time so the new friction material bears evenly on the rotor.
Heavy trail use, steep descents and towing all raise rotor temperature, so pad choice matters as much as rotor condition. A pad rated for the heat your driving produces will last longer and keep the pedal feel steady. After a pad change, a few moderate stops help the surfaces settle before hard use.
- Replace rotor and pads together when possible
- Inspect braided hoses for chafing at each service
- Check caliper pins for smooth movement
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4262262CY |
| UPC | 90127949733 |
| Caliper | S4, 4-piston, fixed |
| Caliper color | Comp Yellow |
| Caliper finish | Powder coated |
| Rotor type | 2-Piece, slotted, drilled, zinc plated |
| Rotor construction | Vented |
| Rotor outside diameter | 13.0 Inch |
| Rotor thickness | 0.81 |
| Rotor hat | Billet aluminum |
| Axle flange | Ford 9 Inch Early Big Bearing |
| Wheel bolt pattern | 5×5.00 |
| Lug count | 5 Lug |
| Minimum wheel diameter | 17.0 Inch |
| Pad FMSI number | DR1-C |
| Park brake | Included, cables not included |
| Brake hose | DOT approved, braided |
| Template | S135H |
| Emission code | 6 |
| Country of origin | USA |
Vehicle fitment
No vehicle is named for this kit. Baer identifies it by axle instead: Ford 9 Inch Early Big Bearing rear housing ends, a 5×5.00 bolt pattern and a 17.0 Inch minimum wheel diameter. Fitment is not confirmed for any specific year, make or model.
Match the axle flange and bolt pattern to your housing, and use Baer’s S135H template to compare the rotor against your wheel. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
The park brake shoe assembly sits inside the backing plate, so the parking brake installs with the caliper mount. The rotor arrives pre-assembled with stainless hardware, and braided hoses are part of the kit. Park brake cables are not included and need to be sourced separately. Have a qualified technician install the system and bleed the brakes, since errors here affect stopping power.
What’s included
The kit includes the S4 caliper, the two-piece slotted, drilled and zinc-plated rotor with billet aluminum hat, Baer’s backing plate with the park brake shoe assembly, braided brake hoses, and stainless hardware.
Not included: park brake cables.
