Rebuild your rear brake with the Carlson Disc Brake Caliper Piston 7075 — the piston that rides in the caliper bore and transfers hydraulic brake-fluid pressure to press the pad against the rotor. It's cataloged as a rear caliper piston for the 2004-2007 BMW 525I and 530I, 2006-2007 BMW 530XI, 2008-2010 BMW 528I, 2008 BMW 535XI, 2009-2010 BMW 535I xDrive, and 2016-2018 BMW X5 (all engines) — see the Buyer's Guide tab for the full list.
If a seized or corroded piston is the cause of a dragging rear caliper, replacing it is designed to restore free piston movement in the bore. Diagnose the underlying cause before replacing, and as a best practice service both sides of the axle together for balanced braking. Manufacturer part number 7075.
What does the Carlson 7075 caliper piston do?
It sits in the rear brake caliper bore and transfers hydraulic brake-fluid pressure to push the brake pad against the rotor when you apply the brakes.
Which vehicles does it fit?
It's cataloged for the 2004-2007 BMW 525I/530I, 2006-2007 530XI, 2008-2010 528I, 2008 535XI, 2009-2010 535I xDrive, and 2016-2018 X5 (all engines). See the Buyer's Guide tab.
Is this a front or rear piston?
It is cataloged as a rear disc brake caliper piston for the listed BMW applications.
How many do I need?
The listed applications use two rear caliper pistons. Order the quantity your repair calls for; it's best practice to service both sides of the axle together.
When should I replace a caliper piston?
Signs the original may need replacing include a corroded or pitted piston, a sticking or dragging caliper, or uneven pad wear found during a caliper rebuild. Diagnose the cause first.
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.
