Overview
The Baer Brakes 4261647MG is a complete S4 front disc brake system in Monster Green for 1970 to 1974 Ford and Mercury cars that came with drum brakes at the front. The kit pairs a 4-piston S4TL caliper with an 11.29 inch vented rotor and is made to fit OE drum brake spindles.
Baer builds the 11 inch SS4 on the same design approach as its larger systems, packaged for 15 inch wheels. It fits the Ford Mustang, Fairlane, Falcon, Maverick and Torino and the Mercury Comet, Cougar, Cyclone and Montego, with years covered in the fitment section below. The caliper is manufactured in Phoenix, AZ.
Key features
- Fixed 4-piston S4TL caliper with a top-load design for quick, simple pad changes
- Hard anodized aluminum pistons, stainless steel abutments and noise suppression clips
- Dual seals that guard against dust, weather and pressure
- Powder coated Monster Green caliper, CNC machined from US-sourced forged or billet aluminum
- Slotted, drilled and zinc-plated 1-piece integral hub rotor
- Bearing races pre-installed, premium bearings packed with Redline synthetic grease, new dust caps
- Mounting brackets, braided hoses and hardware included
Before you buy
Converting front drum brakes to discs changes how the whole braking system works, so look at the parts around the front axle before installing. Disc calipers need more clamping force than drum shoes, so the master cylinder, brake lines and any proportioning or pressure-control valve may need review. A new front caliper cannot make up for worn parts elsewhere, so inspect the full hydraulic system first.
Wheel choice matters as much as the brake parts. Clearance depends on offset, spoke design and backspacing as well as diameter, so test-fit wheels before committing to a set. Tire width and sidewall height also affect how close the tire comes to the caliper at full steering lock.
- Master cylinder and brake lines in sound condition
- Proportioning or pressure-control valve function
- Brake fluid fresh and free of moisture
- Steering and suspension joints without play
- Wheel offset and spoke clearance over the caliper
Specifications
| Brand | Baer Brakes |
|---|---|
| Part number | 4261647MG |
| UPC | 90127974292 |
| Caliper | S4TL, 4-piston, fixed |
| Caliper color | Monster Green |
| Rotor outside diameter | 11.29 inch |
| Rotor construction | Vented, 1-piece integral hub |
| Rotor thickness | 0.94 |
| Rotor surface | Slotted, drilled and zinc plated |
| Lug count | 5 lug |
| Wheel bolt pattern | 5×4.50 |
| Wheel stud size | 1/2-20 x 2.25 inch |
| Minimum wheel diameter | 15.0 inch |
| Hose type | Braided, DOT approved |
| Disc brake pad FMSI number | 6070012 |
| Template | ST168B |
| Axle | Front |
| Grade | Performance |
| Sold as | Kit |
| Country of origin | USA |
Vehicle fitment
It fits these vehicles with OE drum brake spindles: 1970 Ford Fairlane, 1970 Ford Falcon, 1970 to 1974 Ford Maverick, 1970 to 1973 Ford Mustang, 1970 to 1971 Ford Torino, 1971 to 1974 Mercury Comet, 1970 to 1973 Mercury Cougar, 1970 Mercury Cyclone and 1970 to 1971 Mercury Montego.
Models and years outside that list, such as 1974 Mustangs or Torinos from 1972 on, are not covered. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
Confirm your car has the OE drum brake spindles this kit is written for, since the fitment is stated only with them. Baer advises using its ST168B template to check clearance against the wheel you plan to run, because wheel styles vary widely. Brake work should go to a qualified technician.
What’s included
The kit contains the S4TL caliper, the 11.29 inch 1-piece integral hub rotor with bearing races and premium bearings, mounting brackets, braided brake hoses, new dust caps and installation hardware.
Not included: wheels, which must clear the 15.0 inch minimum wheel diameter and the caliper, verified with the template.














