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

⚙️Precision thickness variation <0.0004"

🛡️Zinc-coated for max corrosion resistance

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VT74781

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Sold byAmazon VanuatuDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🛠️ Stop with confidence, drive with style.

READY TO INSTALL - No machining needed—precision-engineered for a perfect fit right out of the box on GM and many other models.
TRUSTED OEM QUALITY - Manufactured to meet or exceed original equipment specs, ensuring reliable, consistent braking performance.
UNMATCHED DURABILITY - COOL SHIELD® zinc coating defends against rust and wear for over 200 hours of salt-spray tested protection.
SMOOTH QUIET BRAKING - Thickness variation under 0.0004 inches minimizes pedal pulsation and noise, extending brake pad life.
LONG LASTING CLEAN LOOK - Coated surface stays cleaner longer, keeping your vehicle’s braking system looking sharp and professional.

The ACDelco Gold 18A81032 rear disc brake rotor features a full zinc COOL SHIELD® coating for superior corrosion resistance, precision thickness control to reduce noise and vibration, and is engineered for a perfect OEM fit on GM and many other vehicles. Designed for durability and ready to install, it delivers reliable braking performance and long-lasting protection.

Specifications

ASIN	B01K8BHP26
Automotive Fit Type	Vehicle Specific Fit
Best Sellers Rank	#576,309 in Automotive ( See Top 100 in Automotive ) #1,037 in Automotive Replacement Brake Rotors
Brand Name	ACDelco
Compatible with Vehicle Type	Car
Customer Reviews	4.8 4.8 out of 5 stars (156)
Exterior Finish	Machined
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 Type	Iron
Model Number	18A81032
OEM Equivalent Part Number	19340369
UPC	808709419280
Unit Count	1.0 Count

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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VT74781

Duties & taxes included

In stock

Sold byAmazon VanuatuDelivered 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 Vanuatu.

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