Why do brakes need to be replaced in the first place?

Friction material on the brake pads or shoes rubs against rotors or drums to slow the vehicle. In time, that material wears away and the pads/shoes must be replaced. Sometimes the rotors and drums also must be replaced.

What’s the squealing sound I hear when braking?

Over time, wear indicators in brakes pads may contact the rotors’ surface when braking, resulting in a metallic squealing sound. Vehicles equipped with wear sensors may also provide an alert that minimum brake pad thickness has been reached.

What if it’s more of a grinding sound?

If all the friction material has been worn away, the metal backing plate of the brake pad will be the material in contact with the rotor during braking. It causes a grinding sound and braking performance is often diminished.

What about vibrations or shaking in the steering wheel?

This is more serious than pulsation. If the brakes are very worn or the rotors are warped, there can be a significant vibration or shaking in the steering wheel when braking. It may mean brake service is needed immediately.

Why do the brakes seem to pulsate when stopping?

It may be due to poor-quality brake pads, warped rotors or unevenly worn tires. Have the pulsation diagnosed as soon as possible to avoid the possibility of greater brake system wear or damage.

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Silver Rear Brake Rotor 18A2543A | GM 19255508 Brake Rotors for Select Buick Enclave, Chevrolet Traverse, Chevy, Saturn, GMC Acadia and more

Product ID: 12577518

Details

Automotive Fit Type
Vehicle Fit
Brand
ACDelco
Exterior Finish
Chrome
Global Trade Identification Number
Manufacturer
ACDelco
Material
Cast Iron

🔇Reduced noise & vibration for smooth rides

🔥Superior heat dissipation with multi-alloy design

🛡️Durable cast iron with reinforced edges

$285.46

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Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🛑 Upgrade your brake game — because smooth stops are the new status symbol!

WHISPER QUIET BRAKING - Non-directional ground finish and balanced rotor design minimize noise and vibration for a refined driving experience.
EXTENDED BRAKE PAD LIFE - Smooth rotor surface reduces uneven wear, prolonging brake pad lifespan and saving you money.
PERFECT FIT FOR YOUR RIDE - Vehicle-specific compatibility with Buick, Chevrolet, GMC, Saturn models—validate your fit in 3 easy steps with the Confirmed Fit tool.
ENGINEERED FOR PEAK PERFORMANCE - Multi-alloy construction and optimized vane design maximize cooling and brake efficiency under pressure.
BUILT TO WITHSTAND DAILY DEMANDS - Rounded radius edges enhance structural strength, ensuring durability even in high-heat, high-load conditions.

The ACDelco Silver Rear Brake Rotor 18A2543A is a premium, vehicle-specific cast iron rotor designed for select Buick, Chevrolet, GMC, and Saturn models. Featuring multi-alloy construction and optimized vane configuration, it delivers superior heat dissipation and reduced brake fade. Its non-directional finish minimizes noise and vibration, while smooth surfaces extend brake pad life. Backed by GM with a 24-month unlimited mileage warranty, this rotor combines durability, performance, and a perfect fit to keep your SUV or sedan stopping safely and smoothly.

Specifications

ASIN	B005QW93P0
Automotive Fit Type	Vehicle Specific Fit
Best Sellers Rank	#77,782 in Automotive ( See Top 100 in Automotive ) #45 in Automotive Replacement Brake Rotors
Brand Name	ACDelco
Compatible with Vehicle Type	Car, SUV
Customer Reviews	4.7 4.7 out of 5 stars (612)
Exterior Finish	Chrome
Global Trade Identification Number	00707773846629
Included Components	Brake Rotor
Item Type Name	Brake Rotor
Item Weight	17.8 Pounds
Manufacturer	ACDelco
Manufacturer Part Number	19255508
Manufacturer Warranty Description	24 Months / Unlimited Miles Limited Warranty (Parts Only). Please see ACDelco.com for more details
Material Type	Cast Iron
Model Number	18A2543A
OEM Equivalent Part Number	19255508
UPC	707773846629
Unit Count	1.0 Count

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$285.46

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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