Overview
The Baer Brakes 4262690MG is an SS4 Plus 11.0 inch rear brake system finished in Monster Green, made for rear ends with Ford 8 inch/9 inch small bearing housing ends. It combines a four-piston S4 caliper with a two-piece slotted, drilled and zinc-plated rotor, so the rear axle gets a complete set in one kit.
The system suits wheels 15 inch or larger and uses the DR1-C pad type. Stainless steel braided hoses, mounting brackets and hardware come with the kit. Confirm the axle flange and wheel fit for your vehicle’s year, model and trim before ordering.
Key features
- Four-piston S4 caliper in Monster Green with a powder coated finish
- Two-piece rotor, slotted, drilled and zinc plated, with a billet aluminum hat
- Vented 11.0 inch rear rotor, 1.020 inch thickness
- Hard anodized aluminum pistons with stainless steel abutments and noise suppression clips
- Dual dust/weather and pressure seals
- CNC machined from US sourced forged or billet aluminum
- Rotors pre-assembled with NAS high grade stainless hardware
Matching the axle and wheel
Rear axle ends vary in flange style, bearing design and bolt pattern, and a brake kit only works when all three line up. Before buying, measure the lug count and pattern, then confirm the flange style against the axle you have. Wheel offset and backspacing also affect caliper clearance, so a test fit with the chosen wheel is worthwhile.
Stainless braided hoses should be inspected at regular service intervals for chafing, leaks or swelling near the fittings. Hard anodized aluminum pistons and stainless abutments are designed to limit wear, but dust and water still need periodic cleaning around the caliper body.
- Measure the lug count and bolt pattern on the axle
- Test fit the wheel before final tightening
- Bleed the hydraulic system after any hose change
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4262690MG |
| UPC | 90127947845 |
| Sold as | Kit |
| Caliper | S4, four-piston, fixed, Monster Green |
| Rotor | 11.0 inch outside diameter, two-piece, vented, slotted and drilled, zinc plated, 1.020 inch thickness |
| Rotor hat | Billet aluminum |
| Pistons | Hard anodized aluminum |
| Minimum wheel diameter | 15.0 inch |
| Lug count | 5 |
| Wheel bolt pattern | 5×4.50/5×4.75 |
| Axle flange | Ford 8 inch/9 inch small bearing |
| Pad type | DR1-C (FMSI) |
| Brake hose | Steel braided, DOT approved |
| Template | S125A |
| Grade type | Performance |
| Park brake included | No |
| Country of origin | USA |
Vehicle fitment
Baer identifies this kit by rear axle flange rather than by vehicle: it is made for Ford 8 inch/9 inch small bearing housing ends. The manufacturer fitment list has no year, make or model entries for this part number.
It does not cover flanges other than the Ford 8 inch/9 inch small bearing style named here. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
Not every wheel style will fit, so compare the S125A template against the chosen wheel before mounting. Brake lines and calipers are a safety item; have the work done by a qualified technician who can bleed the hydraulic system.
What’s included
The kit includes the S4 caliper, two-piece rotors pre-assembled with NAS high grade stainless hardware, all mounting brackets, stainless braided hoses and hardware.
Not included: Park brake (the kit lists Includes Park Brake as No).















