Overview
The Baer Brakes 4262325MG is an SS4 Plus 11.0 inch rear brake kit for Ford 9 inch axles with late big bearing housing ends. It uses a four-piston S4 caliper finished in Monster Green, clamping a two-piece slotted, drilled, zinc-plated rotor, and the system uses the DR1-C pad type.
The 11 inch rotors come pre-assembled with NAS high grade stainless hardware. Mounting brackets, stainless braided hoses and hardware are supplied. The 11 inch SS4 Plus suits wheels of 15 inches or larger, though fit with every wheel style cannot be guaranteed, so use template S125A to compare the system with your wheel.
Key features
- Four-piston S4 caliper, manufactured in Phoenix, Az
- Caliper body CNC machined from US sourced forged or billet aluminum
- Monster Green powder coated caliper finish
- Hard anodized aluminum pistons with stainless steel abutments
- Dual seals for dust, weather and pressure
- Two-piece, slotted, drilled and zinc-plated 11 inch rotor with billet aluminum hat
- Steel braided hoses and mounting brackets included
Choosing the right setup
Matching the rear brake setup to the rest of the vehicle matters as much as the caliper itself. A smaller rotor paired with a multi-piston caliper changes the balance between front and rear braking, so review the front brakes before the rear is upgraded. Because the rotor is pre-assembled, check the hub face, studs and wheel mounting surface for corrosion or debris before installation, since those surfaces control runout.
Parking brake function is often the item that gets overlooked. With no park brake included here, decide early whether an existing cable setup will be reused or whether a separate arrangement is needed. Keep the brake lines routed clear of suspension travel and exhaust heat, and inspect the hoses at each service interval for chafing or seepage.
- Review front brake condition before a rear upgrade
- Clean the hub face and wheel mounting surface before fitting
- Plan the parking brake arrangement before ordering
- Look for uneven pad wear or rotor scoring during inspection
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4262325MG |
| UPC | 90127950869 |
| Package type | Kit |
| Caliper | S4, four-piston, fixed |
| Caliper color | Monster Green |
| Rotor outside diameter | 11.0 inch |
| Rotor type | 2-piece, vented |
| Rotor thickness | 1.020 inch |
| Rotor surface | Slotted, drilled and zinc plated |
| Axle | Rear, Ford 9 inch Torino/late big bearing flange |
| Pad type | DR1-C (FMSI) |
| Brake hose | Steel braided, DOT approved |
| Park brake included | No |
| Lug count | 5 |
| Wheel bolt pattern | 5×4.50/5×4.75 inch |
| Minimum wheel diameter | 15.0 inch |
| Template | S125A |
| Grade | Performance |
| Country of origin | USA |
Vehicle fitment
The kit is built for the Ford 9 inch Torino (late big) bearing axle flange and a 5×4.50/5×4.75 inch wheel bolt pattern. These describe the axle and wheel rather than a model year, so use template S125A to check the match before mounting.
Confirm your vehicle’s year, model and trim before ordering.
Installation notes
The parking brake is not included, so it must be handled separately. The rotors arrive pre-assembled with stainless hardware, so measure your wheel and run the S125A template before the rotor goes on the hub. The pads are the DR1-C type.
What’s included
The kit includes the S4 caliper, 11.0 inch rotors with pre-assembled stainless hardware, mounting brackets, and stainless braided hoses with hardware. A park brake shoe assembly is not part of the included items.
