Carlson Disc Brake Caliper Piston
Carlson Disc Brake Caliper Piston

Carlson Disc Brake Caliper Piston P/N:7154

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$24.99
MPN: 7154
Item Package Quantity: 1
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Carlson Disc Brake Caliper Piston P/N:7154
Carlson Disc Brake Caliper Piston P/N:7154
$24.99

The Carlson Disc Brake Caliper Piston 7154 is the hydraulic piston that rides inside the rear brake caliper — brake-fluid pressure acts on it to press the pad against the rotor. It drops in as a direct-fit replacement for the listed applications, including the 2005-2008 Ford Escape, 2005-2008 Mercury Mariner, and the 2005-2006 and 2008 Mazda Tribute, plus a range of Mercedes-Benz models.

  • Rear caliper piston: cataloged for the rear brake calipers on the listed vehicles.
  • Hydraulic actuation: brake-fluid pressure works against the piston face to clamp the pad onto the rotor.
  • Application quantity: the listed applications use two (one per rear caliper); replace both sides together as a matched set for even, balanced rear braking.
  • Signs it may need replacing: a seized or corroded piston can contribute to a dragging rear brake, uneven pad wear, or fluid seepage — diagnose the cause before replacing.

Mercedes-Benz coverage includes the ML320 (2007-2009), ML350 (2006-2011), ML500 (2006-2007), ML550 (2008-2011), R320 (2007-2009), R350 (2006-2012), and R500 (2006-2007), all engines [All]. See the Buyer's Guide tab for the full list and to confirm fitment for your vehicle. Manufacturer part number 7154.

Frequently Asked Questions

Where does this piston install?

It's cataloged for the rear brake calipers on the listed applications, including the 2005-2008 Ford Escape, 2005-2008 Mercury Mariner, Mazda Tribute, and several Mercedes-Benz ML and R models.

What does a brake caliper piston do?

Brake-fluid pressure acts on the piston, which presses the brake pad against the rotor to slow the wheel when you apply the brakes.

How many pistons do I need?

The listed applications use two, one per rear caliper. Replacing both sides together helps keep rear braking even and balanced.

What are signs mine may be failing?

A seized or corroded piston can contribute to a dragging rear brake, uneven pad wear, or fluid seepage. Diagnose the underlying cause before replacing.

Are seals or hardware included?

Consult the vehicle service information for the correct rebuild seals, hardware, and the proper caliper installation and bleeding procedure.

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