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The Power Stop S4378 front brake calipers bring a bold red finish and reliable clamping force to 1994-1998 Ford Mustang and related platforms. Each caliper is remanufactured to OEM specifications, then coated with an electrostatic red powder coat for corrosion resistance and show-quality appearance. S4378 ships as a complete pair with mounting brackets for direct bolt-on installation.
Fitment
S4378 fits the following vehicles:
- 1994-1998 Ford Mustang
- 1993-1997 Ford Thunderbird LX
- 1993-1995 Ford Thunderbird Super Coupe
- 1993-1997 Mercury Cougar XR-7
Product Specifications
| Specification | Detail |
|---|---|
| Part Number | S4378 |
| Position | Front |
| Quantity | 2 Calipers (Pair) with Brackets |
| Piston Design | 2-piston floating caliper |
| Finish | Electrostatic Red Powder Coat |
| Caliper Type | Remanufactured |
| Brackets Included | Yes |
| Prop 65 | Yes |
Key Features
- Electrostatic powder coat finish resists corrosion and maintains vibrant red color under heat
- Remanufactured to OEM tolerances for reliable hydraulic sealing and piston travel
- Includes brackets for complete direct-bolt installation with no additional hardware needed
- Floating caliper design provides even pad wear across both inboard and outboard pads
- Compatible with OEM and aftermarket rotors of the correct size for 1994-1998 Mustang
- Adds visual appeal visible through open-spoke wheels without sacrificing function
Installation Notes
S4378 installs using the OEM caliper mounting points. Remove the old caliper and bracket assembly, clean the knuckle mounting surface, bolt the new bracket, install the caliper, connect the brake line, and bleed the system. Torque all hardware to Ford specification. Bed the brakes with 6-8 moderate stops from 35 mph before heavy use.
Frequently Asked Questions
- Does S4378 require any modifications? No. These calipers bolt directly to the OEM front knuckle on 1994-1998 Ford Mustang using the supplied brackets. No drilling or modification is needed.
- Are both left and right calipers included? Yes. S4378 ships as a pair including driver-side and passenger-side calipers and brackets.
- Will the red finish fade or peel from heat? The electrostatic powder coat is applied before assembly and is designed to withstand normal brake operating temperatures, maintaining color through street use.
- Do I need to bleed the brakes after installing S4378? Yes. Anytime a caliper is replaced and the hydraulic line is opened, a full bleed of that corner is required to remove air from the system.
- Does the Magnuson-Moss Warranty Act protect me when installing aftermarket calipers? Yes. The Magnuson-Moss Warranty Act prohibits a manufacturer from voiding your vehicle warranty solely because you installed an aftermarket part like S4378, as long as the part did not cause the claimed damage.
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