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Brake wear on the 2012-2013 Buick Regal usually starts up front and reaches the rear months later. Buying one axle at a time means two installs and two bedding cycles.

The front and rear drilled and slotted rotor kit with ceramic pads for the 2012-2013 Buick Regal finishes the car in one order: four rotors, eight pads, one matched friction pair.

Order one kit, not both

The same kit is listed twice because it was sourced from two eBay origin listings at different prices.

The second listing of the identical 2012-2013 Buick Regal kit is the same four rotors and eight ceramic pads at a higher price. It is not extra hardware.

• One kit is four rotors and eight pads — the complete bill of materials.
• Order one; ordering both puts eight rotors and sixteen pads on your shelf.
• If your first choice is out of stock, the duplicate is a fallback.

Which front rotors your Regal actually wears

Front rotors on this generation come in two sizes. Measure before you buy; the model year alone does not settle it.

About 296 mm (11.7 in) fronts fit the 2.4L base and premium cars. About 321 mm (12.6 in) fits the 2.0L turbo trims.

• Measure the worn face across the friction surface with a caliper or tape.
• Match the casting number on the rotor hat to ACDelco 18A2719 (GM 19286252).
• A rotor that misses either check is the wrong part.

The 2012-2013 Regal GS is outside this discussion. Its Brembo front end runs about 345 mm rotors, four-piston calipers and its own pad shape. Nothing in a standard kit box fits.

Front axle only, or all four corners at once

Fronts-only is the cheaper quote, and the fronts wear about twice as fast. It works only if the rears measure healthy.

• Measure rear pad friction at its thinnest point; plan replacement below about 3 mm.
• Micrometer the rear rotor in four places against the 0.35 in (9 mm) discard figure.
• Rears that pass can wait; rears that fail mean a second labor session within months.
• Mixed pad compounds on the two axles brake with different grip curves.

If your rears pass, our front and rear ceramic pad set for the 2012-2013 Buick Regal, 2008-2012 Chevrolet Malibu and 2010-2016 Buick Allure is the right-sized pads-only buy.

Do not substitute across platforms. The rear rotors listed for the 2006-2013 Buick Allure, 2006-2013 Chevrolet Impala and 2006-2011 Pontiac Grand Prix belong to the older W-body chassis and do not interchange.

What slots and holes actually do

Slots and holes buy you consistent bite and better looks, not a big cooling number.

Slots are grooves across the friction face. They scrape glaze off the pad and give water a channel to escape on wet roads.

Drilling is a trade. Each hole removes mass from a part that must hold heat, and hole edges are where cracks start.

• Buy them for steady bite, wet-road grip and cleaner wheels.
• For towing or long descents, a coated blank rotor is the more durable answer.

Why ceramic pads earn their place in the same box

Ceramic pads are the right pairing for this kit.

• Light-colored dust that does not bake black onto wheels.
• Quieter; the compound damps vibration at the pad face.
• Steady grip from a cold morning to a hot interstate exit.
• Trade-off: some peak bite, which a street Regal never misses.

One check saves the job: a rear caliper carries the parking brake, and a dragging one wears one pad side unevenly.

Our rear right caliper for the 2011-2017 Buick Regal and 2012-2016 Buick LaCrosse, reference 18B5325 is the direct replacement with a 41 mm piston and M10x1.0 ports. Slide the pins and cycle both pistons with the wheels off.

Bedding: the fifteen minutes that decide how the kit feels

New pads and rotors have never touched. Bedding is the break-in drive that lays a pad-material film on the rotor face. The brake grips that film, not bare metal.

Skipping it costs you soft bite and judder. Pick an empty road and a cool morning.

1. Five moderate-to-firm stops from 40 to 10 mph, short of ABS, with no cooling between stops.
2. Never stop completely on hot rotors; leave rolling room at lights.
3. Five moderate stops from 35 mph to 5 mph; a hot smell and a soft pedal are normal.
4. Drive five minutes or more to cool, with no braking.
5. Drive gently for the first hour, then brake normally.

Ceramic suppliers call for six to ten moderate stops from 30-35 mph plus a couple firmer ones. The sequence above fits that range.

When the car does not feel right after the job

Two symptoms show up in the first hundred miles. Each means something different.

• Soft pedal on the first stops is normal; the transfer film is still forming.
• Steering-wheel shudder under light braking is thickness variation. Recheck a dirty hub face and star-pattern lug torque.
• Squeal on the first light stop after bedding is known on this generation; see GM service bulletin 17-NA-040.
• An ABS or Stabilitrak light is often debris on a wheel speed sensor, per GM note PIC-5428. Clean the sensor ring first.

Our caliper replacement walkthrough for the 2001-2005 Toyota RAV4 covers the same discipline. Our guide to brake pad interchange and friction codes across the Acura RDX, CSX, MDX and Honda CR-V explains pad grading.

The brakes and brake parts collection holds the rest of the axle hardware. If a casting number or wheel size does not match your car, send us a request for a quote.

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