Bring firm, even braking back to one corner with the PowerStop brake caliper L4989, an Autospecialty by PowerStop direct-replacement front-right caliper that bolts on directly in place of the original stock unit with no modifications necessary. It's a direct-fit replacement for many vehicles, among them the 2006-2013 Chevrolet Impala, 2014-2016 Chevrolet Impala Limited and 2006-2011 Buick Lucerne — see the Buyer's Guide tab for the full list and engine-level fitment. A caliper clamps the brake pads against the rotor to slow the wheel; a seized, sticking, or leaking caliper can cause uneven pad wear, brake drag, pulling, or fluid loss, all signs this unit may need replacing.
Bolt-on ready, it's an easy caliper replacement for DIY and professional installers alike.
Does this PowerStop caliper fit my vehicle?
It's a direct-fit front-right replacement for many vehicles, including the 2006-2013 Chevrolet Impala and 2006-2011 Buick Lucerne. Check the Buyer's Guide tab for the full list and engine-level fitment.
What position is caliper L4989?
This is the front-right caliper. It is sold individually, so it covers only that one corner of the vehicle.
Is this disc brake caliper ready to install?
Yes. It bolts on directly with no modifications and is assembled with new seals, guide pins, dust boots, bleeder screws, stainless-steel hardware, and a mounting bracket.
Do I need to buy two of these brake calipers?
This listing is for one caliper. Replacing both sides of the axle together as a matched pair is recommended for even, balanced braking, though not required.
What are signs my caliper may need replacing?
A sticking, seized, or leaking caliper can cause brake drag, pulling, uneven pad wear, or fluid loss. Diagnose the cause before replacing, as these symptoms can have other sources.
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.