Overview
The Baer Brakes 4262325CY is a rear SS4 Plus 11-inch brake system for Ford 9 Inch Torino (Late Big) bearing axle ends, with Comp Yellow S4 calipers and a 5×4.50/5×4.75 bolt pattern. It pairs a four-piston S4 caliper with a two-piece, slotted, drilled, zinc-plated rotor and is sold as a complete kit.
Each rotor is an 11.0 inch vented unit with a billet aluminum hat, and the rotors arrive pre-assembled with NAS high grade stainless hardware. The package also includes mounting brackets, stainless braided hoses and matching hardware. The 11 inch SS4 Plus fits wheels of 15 inch or larger, and the S125A template is used to check wheel clearance before assembly.
Key features
- Two-piece four-piston S4 caliper manufactured in Phoenix, Arizona.
- CNC machined from U.S.-sourced forged or billet aluminum.
- Powder coated Comp Yellow finish.
- Hard anodized aluminum pistons with stainless steel abutments and noise suppression clips.
- Dual dust, weather and pressure seals.
- Slotted, drilled, zinc-plated rotor with a billet aluminum hat.
- Steel braided, DOT approved brake hoses.
Care and inspection
Rear disc brakes on a heavy vehicle work hard under repeated stops, and regular inspection keeps the system predictable. Check the rotor surface for scoring, heat marks and uneven wear each time the wheels come off, and measure thickness against the minimum rotor specification before reuse. Slotted and drilled rotors shed gas and water, but the slots also collect pad material, so clean them out during routine service.
Pads are the most frequently replaced wear item. Replace them in axle sets so braking stays even side to side, and bed in new pads gently before heavier use. Brake fluid should be changed on a regular schedule because moisture lowers its boiling point over time. After the first few trail runs, re-check wheel bolts and caliper mounting hardware.
- Look for pulsing or changes in pedal travel
- Check hoses for chafing or cracking
- Inspect caliper seals for leaks after service
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4262325CY |
| UPC | 90127950784 |
| Caliper | S4, four-piston, fixed type |
| Caliper color | Comp Yellow |
| Rotor outside diameter | 11.0 inch |
| Rotor construction | Vented, 2-piece, slotted, drilled and zinc plated |
| Rotor thickness | 1.020 inch |
| Axle flange | Ford 9 Inch Torino/Late Big bearing |
| Wheel bolt pattern | 5×4.50/5×4.75 |
| Lug count | 5 lug |
| Minimum wheel diameter | 15.0 inch |
| Pad type (FMSI) | DR1-C |
| Hose material | Steel braided, DOT approved |
| Park brake included | No |
| Template | S125A |
| Grade | Performance |
| Emission code | 6 |
| Country of origin | USA |
| Sold as | Kit |
Vehicle fitment
It is built around the Ford 9 Inch Torino/Late Big bearing axle flange, which identifies the rear axle rather than a specific vehicle, so the 5×4.50/5×4.75 bolt pattern must match your hub.
Wheel style fit cannot be guaranteed for every design, so compare the S125A template with your wheel before final assembly.
Installation notes
The supplied mounting brackets and stainless hardware are used for installation of the rotors and calipers. Park brake cables are not part of this package, so plan a park brake setup separately if you need one. Have a qualified brake technician install the system and test it before the vehicle is driven on the road.
What’s included
The kit includes the four-piston S4 calipers, the two-piece rotors with pre-assembled NAS stainless hardware, all mounting brackets, and the stainless braided hoses with hardware.
Not included: The park brake, which the specifications list as not included with this kit.
