Carlson Disc Brake Caliper Piston
Carlson Disc Brake Caliper Piston

Carlson Disc Brake Caliper Piston P/N:7129

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$23.99
MPN: 7129
Item Package Quantity: 1
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Carlson Disc Brake Caliper Piston P/N:7129
Carlson Disc Brake Caliper Piston P/N:7129
$23.99

Keep your front brake caliper applying the pad smoothly with the Carlson Disc Brake Caliper Piston 7129. This is a direct-fit front caliper piston for the 2008-2014 Scion xD [All], 2009-2010 Pontiac Vibe [All], 2009-2019 Toyota Corolla [All], and 2009-2013 Toyota Matrix [All].

The piston rides inside the front brake caliper bore and moves under hydraulic fluid pressure to press the inner brake pad against the rotor. Over years of heat and moisture, the original piston can corrode, score, or seize in its bore.

  • Front caliper application: cataloged for the front position on the listed vehicles.
  • Hydraulic actuation: transfers brake-fluid pressure to the pad to apply the brake.
  • Wear-part replacement: if a corroded or sticking piston is the cause of brake drag, uneven pad wear, or an inconsistent pedal, this replaces it.
  • Sold as a service piston: the listed applications use two per vehicle (qty 2) — order the quantity your job requires.

Diagnose the cause of any braking symptom before replacing, since drag or pull can also come from other caliper or hydraulic components. Best practice is to service both front calipers together for even, balanced braking. Manufacturer part number 7129.

Frequently Asked Questions

What does this caliper piston do?

It sits in the front brake caliper bore and moves under hydraulic fluid pressure to push the inner brake pad against the rotor, applying the brake.

Which vehicles does part 7129 fit?

It's a direct-fit front caliper piston for the 2008-2014 Scion xD, 2009-2010 Pontiac Vibe, 2009-2019 Toyota Corolla, and 2009-2013 Toyota Matrix (all engines).

Is this a front or rear caliper piston?

The catalog lists it in the front position for the covered applications.

How many do I need?

The listed applications use two per vehicle (qty 2). It's best to service both front calipers together, so order the quantity your job requires.

What are signs this piston may need replacing?

Corrosion, scoring, or a seized/sticking piston can show up as brake drag, uneven pad wear, or an inconsistent pedal. Diagnose the cause before replacing.

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