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 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.

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Silver 18A2821A (88878112) Non-Coated Rear Disc Brake Rotor

Product ID: 14858408

Details

Brand
ACDelco
Exterior Finish
Machined
Manufacturer
ACDelco
OEM Part Number
88878112
UPC
707773952498
Global Trade Identification Number

🔥Multi-alloy heat dissipation

⚖️Mill-balanced precision

🛡️Rounded radius strength

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₩193119

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Description

🛑 Stop smart, drive confident with ACDelco Silver!

OEM BACKED QUALITY - Trusted by General Motors, compatible with most makes and models for seamless fit and function.
ECONOMICAL EXCELLENCE - Get dependable, high-quality braking performance without breaking the bank.
DURABILITY MEETS SAFETY - Rounded radius design adds structural strength for long-lasting, reliable stopping power.
PRECISION MILL BALANCED ROTOR - Eliminates the need for extra weights, delivering smooth, vibration-free braking every time.
ENGINEERED FOR PEAK PERFORMANCE - Multi-alloy construction ensures superior heat dissipation, keeping your brakes cool under pressure.

The ACDelco Silver 18A2821A Rear Disc Brake Rotor is a precision-engineered, multi-alloy rotor designed for superior heat dissipation and durability. Mill-balanced for smooth operation and backed by General Motors, it offers reliable braking performance for GM and most other vehicle models at an economical price.

Reviews

B**N

Good and Inexpensive

There really is not much to say other than they seem to be quality and are much cheaper than other name brands (surprising as they carry the AC Delco name). I've got a few hundred miles on them and no pulsations, etc. So far so good.

21.09.2023

D**G

Rotors are well machined

No brake vibration or noise.

14.06.2023

A**S

Not coated and rust by looking at them.

I could not get the coated rotors, so I bought these. They fit and work great. The price was quite good. However, they rust just by looking at them. If you rotors are overly visible, you may want to wait until you can get the coated rotors.

8.12.2021

A**S

Great value!

Thank you Great product and made install very easy Thank you

16.04.2023

S**B

Perfect

3.09.2019

R**.

Poor application

Didn't fit wrong bolt pattern.

31.08.2019

A**I

Five Stars

Great

10.11.2016

M**K

Rust

The outer part of the center rusted. I bought napa for the fronts and they did not. Ac delco great rotors but not good against weather.

15.02.2023

D**U

Return policy

Although the part number and description were correct for the part to match the vehicle it did not fit. Returning the part I was disapointed that I did not get a full refund. Not a great experience as it ended up costing extra labor at the garage as well!

2.09.2021

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

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₩193119

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In stock

Sold byAmazon South KoreaDelivered 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 South Korea.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

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2 weeks ago

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Manufacturer	ACDelco
Brand	ACDelco
Model	Brake Rotor
Item Weight	10.67 pounds
Product Dimensions	11.2 x 11.2 x 2.3 inches
Item model number	18A2821A
Exterior	Machined
Manufacturer Part Number	88878112
OEM Part Number	88878112
Position	Rear

Silver 18A2821A (88878112) Non-Coated Rear Disc Brake Rotor

Details

Details

Description

Specifications

Reviews

Common Questions