Keep the front brakes clamping smoothly with the Carlson Disc Brake Caliper Piston 7179. This front-position caliper piston is a direct-fit replacement for the listed applications: the 1998-2003 Chevrolet W4500 Tiltmaster, 1998-2003 GMC W4500 Forward, 1998-2003 Isuzu NPR, and the 2003 Isuzu NQR (engine: All). It rides inside the front disc brake caliper bore, where it does the caliper's core job of turning brake-fluid pressure into clamping force.
If a worn or corroded front caliper piston is the cause of your braking issue, this replaces the original component. Diagnose the underlying cause before servicing, and replace brake components in matched sets where the service procedure directs. Manufacturer part number 7179.
What does this caliper piston do?
It sits in the front disc brake caliper bore and transfers brake-fluid pressure into clamping force, pushing the brake pad against the rotor when you press the pedal.
Which vehicles does part 7179 fit?
It's a direct-fit front caliper piston for the 1998-2003 Chevrolet W4500 Tiltmaster, 1998-2003 GMC W4500 Forward, 1998-2003 Isuzu NPR, and 2003 Isuzu NQR. See the Buyer's Guide tab to confirm.
How many pistons do I need?
The listed applications use 4 pistons per vehicle. This listing is for one piston, so order the quantity your caliper setup requires.
What are signs my caliper piston is failing?
A seized or corroded piston can cause a dragging brake, uneven pad wear, or brake fluid seeping past the piston seal. Diagnose the cause before replacing.
Is this a front or rear part?
This is a front-position caliper piston for the listed applications.
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.
