Keep firm, even braking on the front right corner with the Autospecialty by PowerStop Disc Brake Caliper L4989. This front right caliper bolts on directly in place of the original stock unit — no modifications necessary — as a direct-fit replacement for the 2006-2011 Buick Lucerne, 2006-2013 Chevrolet Impala, 2014-2016 Chevrolet Impala Limited, and 2006-2007 Chevrolet Monte Carlo. See the Buyer's Guide tab for engine-level fitment.
The caliper clamps the brake pads against the rotor to convert pedal pressure into stopping force. Signs your original may need replacing include a sticking or dragging brake, uneven pad wear, fluid leaks at the caliper, or a pull to one side. Sold individually — this listing is for one caliper; replacing calipers as a matched pair on the same axle is recommended for balanced braking.
Which position does the L4989 caliper fit?
It is cataloged as the front right (passenger-side) disc brake caliper for the listed applications.
Does this caliper require modifications to install?
No. It is bolt-on ready and installs directly in place of the original stock caliper with no modifications necessary.
What comes assembled on the caliper?
It is assembled with new seals, caliper guide pins, dust boots, bleeder screws, stainless-steel brake pad attachment hardware, and mounting brackets.
Is the caliper tested before shipping?
Yes. Each caliper is 100% pressure tested and inspected to help provide reliable, high-quality brake performance.
Is this sold as a pair?
No, it is sold individually — this listing is for one caliper. Replacing both calipers on the same axle together is recommended for balanced braking.
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.
