Carlson Disc Brake Caliper Piston P/N:7974
Keep hydraulic pressure moving through your brake caliper with the Carlson Disc Brake Caliper Piston 7067 — the hydraulic piston inside the caliper that transfers brake-fluid pressure to press the pads against the rotor. It's cataloged for both front and rear caliper positions and drops in as a direct-fit replacement across a wide range of BMW and Mercedes-Benz SUVs and wagons, including the 2011-2018 BMW X5, 2008-2019 BMW X6, Mercedes-Benz G-Class (G55/G63/G65 AMG), GL-Class (GL320/GL350/GL450/GL550), ML-Class (ML320/ML350/ML500/ML550) and R-Class (R320/R350/R500). See the Buyer's Guide tab for the full year list.
If a failed piston in the original caliper is the cause of your brake issue, this replaces it during a caliper rebuild or overhaul. Manufacturer part number 7067.
What does this caliper piston do?
It's the hydraulic piston inside the brake caliper that transfers brake-fluid pressure to push the brake pads against the rotor when you apply the brakes.
Does it fit the front or rear?
It's cataloged for both front and rear caliper positions on the listed applications, so it can serve as a front or rear replacement depending on your vehicle.
How many do I need?
Quantity varies by application: the listed BMW X5 and X6 use 4 per vehicle, while the Mercedes-Benz applications use 2. Order the quantity your calipers require.
What are the signs of a failing caliper piston?
Common signs include a seized or corroded piston causing brake drag, uneven or rapid pad wear, or fluid leaking at the caliper. Diagnose the cause before replacing.
Will it fit my vehicle?
It's a direct-fit replacement for listed BMW X5/X6 and Mercedes-Benz G, GL, ML and R-Class models. Check the Buyer's Guide tab to confirm your exact year and model.
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.