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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ACDelco Gold 18A81032 (19340369) Fully Coated Rear Disc Brake Rotor

ACDelco Gold 18A81032 (19340369) Fully Coated Rear Disc Brake Rotor

Product ID: 121045043

Details

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

🚗OE fit for GM & most vehicles

⚙️Thickness variation <0.0004 inch

🛡️200 hrs salt-spray corrosion resistance

1386.80 DT

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Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🛠️ Stop at nothing—brake with confidence and style!

TRUSTED QUALITY - Backed by a 24-month unlimited mile warranty and 4.8-star customer satisfaction.
READY TO INSTALL - No machining required—engineered for a perfect OE fit on GM and many other models.
UNMATCHED DURABILITY - COOL SHIELD® zinc coating protects against rust and wear for longer rotor life.
PRECISION PERFORMANCE - Thickness variation under 0.0004 inches minimizes brake noise and pedal pulsation.
CORROSION RESISTANT SHIELD - Proven to withstand 200 hours of salt-spray testing, keeping your brakes cleaner and stronger.

The ACDelco Gold 18A81032 rear disc brake rotor features a fully coated zinc COOL SHIELD® surface that delivers superior corrosion resistance proven by 200 hours of salt-spray testing. Engineered with a thickness variation under 0.0004 inches, it ensures smooth, quiet braking and extended pad life. Designed for a direct OE fit on General Motors and many other vehicles, this iron rotor comes ready to install with no machining needed, backed by a 24-month unlimited mile warranty and top-rated customer reviews.

Specifications

ASIN	B01K8BHP26
Automotive Fit Type	Vehicle Specific Fit
Best Sellers Rank	#849,709 in Automotive ( See Top 100 in Automotive ) #1,744 in Automotive Replacement Brake Rotors
Brand	ACDelco
Brand Name	ACDelco
Compatible with Vehicle Type	Cars
Customer Reviews	4.8 out of 5 stars 153 Reviews
Exterior Finish	Fully Coated
Global Trade Identification Number	00808709419280
Included Components	Brake Rotor
Item Type Name	Brake Rotor
Item Weight	22.4 pounds
Manufacturer	ACDelco
Manufacturer Part Number	19340369
Manufacturer Warranty Description	24 Month / Unlimited Mile Limited Warranty on parts sold on or after 04/01/18. (Parts Only) Please see ACDelco.com for more details.
Material	Iron
Material Type	Iron
Model Number	18A81032
Number of Items	1
OEM Equivalent Part Number	19340369
UPC	808709419280
Unit Count	1 Count
Vehicle Service Type	Cars

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1386.80 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered 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 Tunisia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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

2 days ago

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