Carlson Disc Brake Caliper Piston P/N:7179

Keep front braking crisp with the Carlson Disc Brake Caliper Piston 7179, the moving element that transfers hydraulic pressure to the brake pad inside your front caliper. It's cataloged for the front position on the 1998-2003 Chevrolet W4500 Tiltmaster, 1998-2003 GMC W4500 Forward, 1998-2003 Isuzu NPR, and the 2003 Isuzu NQR (engine: All), which each use 4 per application.

• Direct-fit front replacement: designed to install in the front caliper bore for the listed applications.
• Hydraulic actuation: when the brakes are applied, fluid pressure pushes the piston outward to clamp the pad against the rotor.
• Wear-part renewal: a fresh piston restores a clean, true sealing surface for the caliper's fluid seal to ride against.

A corroded, pitted, or seized piston can drag, stick, or cause uneven pad wear. If a failed piston is the cause of that symptom on your vehicle, this replaces it — diagnose the caliper before ordering, as other components can produce similar signs. Because these applications use four pistons per application, plan quantities accordingly and service the axle as directed by the vehicle's brake procedure for balanced braking.