Press every front pad squarely against the rotor with the Carlson Brake Hardware Disc Brake Caliper Piston, MPN 7131. It's a direct-fit front caliper piston for the 2021-2022 Ford Bronco (All engines) and the 2019-2022 Ford Ranger (All engines), where it transfers hydraulic pressure from the brake fluid to the pad backing plate to clamp the front disc brakes.
A scored, corroded, or seized piston can cause a dragging brake, uneven pad wear, or a fluid leak past the seal. If a failed piston is the cause of those conditions, this replaces it. Inspect the caliper bore and seal, and replace both sides together for balanced braking. When servicing hydraulic components, follow the vehicle service procedure and bleed the brakes afterward.
What does this caliper piston do?
It sits in the front caliper bore and extends under hydraulic pressure to press the brake pad against the rotor, then eases back as the seal retracts it for pad clearance.
Which vehicles does MPN 7131 fit?
It's a direct-fit front piston for the 2021-2022 Ford Bronco (All engines) and 2019-2022 Ford Ranger (All engines). See the Buyer's Guide tab to confirm your vehicle.
Is this a front or rear piston?
It is cataloged for the front caliper position on the listed Bronco and Ranger applications.
How many pistons do I need?
The listed applications use 4 pistons per vehicle. Order the quantity your specific caliper configuration requires, and service both sides together for even braking.
What are signs a caliper piston needs replacing?
A scored, corroded, or seized piston can cause a dragging brake, uneven pad wear, or fluid leaking past the seal. Diagnose the cause before replacing.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
