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.

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

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 matched G3000 material for guaranteed performance

⚙️Thickness variation <0.0004 for smooth, noise-free braking

🛡️COOL SHIELD® zinc coating for max corrosion resistance

Description

🛠️ Upgrade your ride with brakes that mean business—stop smarter, last longer!

TRUSTED QUALITY - Manufactured to meet strict SAE standards with OE matched G3000 material for reliable braking power.
READY TO INSTALL - No machining needed—out-of-the-box fit and function tailored for GM and most vehicle makes.
UNMATCHED DURABILITY - Baked-on zinc coating shields rotor edges & vanes from corrosion and wear, lasting 200+ hours in salt-spray tests.
PRECISION ENGINEERING - Thickness variation under 0.0004 inches minimizes pedal pulsation and noise, extending brake pad life.
PEACE OF MIND WARRANTY - Backed by a 24-month unlimited mile limited warranty, ensuring long-term confidence on the road.

The ACDelco Gold 18A81032 rear disc brake rotor features a full COOL SHIELD® zinc coating for superior corrosion resistance, precision thickness control under 0.0004 inches to reduce noise and vibration, and is manufactured with OE matched G3000 material to meet SAE standards. Designed for a perfect fit on GM and many other vehicles, it comes ready to install with a 24-month unlimited mile warranty, delivering reliable, long-lasting braking performance.

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

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

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.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ravi S.

I loved the variety of products available. Will definitely shop again.

2 months ago

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anita G.

Good experience, but the tracking updates could be better.

2 months ago

Suresh K.

Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

View all Trustpilot reviews