Search  for anything...

ACDelco Silver 18A2321A Rear Disc Brake Rotor

  • Based on 90 reviews
Condition: New
Checking for the best price...

Buy Now, Pay Later


As low as $8 / mo
  • – 4-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Free shipping on this product

This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: 12 left in stock
Fulfilled by Amazon

Arrives Wednesday, Sep 3
Order within 6 hours and 26 minutes
Available payment plans shown during checkout

Features

  • Manufactured with multiple alloys for improved heat dissipation and performance
  • Mill-balanced for proper rotor function; no extra weights are needed
  • Quality validated for proper metallurgy and correct brake plate thickness
  • Rounded radius for added strength
  • Some ACDelco Silver parts may have formerly appeared as ACDelco Advantage
  • Economical value with dependable quality
  • For General Motors vehicles as well as most makes and models

Description

ACDelco Silver (Advantage) Disc Brake Rotors are a quality, high value alternative for General Motors vehicles as well as most makes and models and are backed by General Motors. These rotors provide reliable vehicle braking power. Application-specific vane configuration offers greater safety and performance, dampens noise and vibration, and maximizes airflow to keep your rotor running cool. They also feature a non-directional ground finish that minimizes thickness variation and helps to extend brake pad life. These dependable aftermarket Disc Brake Rotors offer quality at an economical price. ACDelco Silver (Advantage) parts are a good choice for many vehicles on the road today. Some ACDelco Silver parts may have formerly appeared as ACDelco Advantage.


Manufacturer: ‎ACDelco


Brand: ‎ACDelco


Item Weight: ‎11.5 pounds


Product Dimensions: ‎12.25 x 11.5 x 2.25 inches


Country of Origin: ‎China


Item model number: ‎18A2321A


Exterior: ‎Attribute not appiicable to product


Manufacturer Part Number: ‎18A2321A


OEM Part Number: ‎19241840


Position: ‎Rear


Domestic Shipping: Item can be shipped within U.S.


Date First Available: October 10, 2007


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Sep 3

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Excellent OEM Quality at an affordable price!
Don't skimp if your gonna do your brakes and only swap the pads. Chevy tolerances for the replacement of their rotors is pretty tight. Even if your brakes aren't suffering from the tell-tale warpage pulsing in the brake pedal, your rotors may still need replacing. With the cost of these and the OEM ACDelco rear pads with wear indicators, the entire job shipped ended up costing less than $100. For DIY thats a great price for going with decent quality components and not some flybynight chinese import parts. Do the pads AND the rotors and enjoy the smooth stopping. These fit the 2008 Impalla perfectly and installed in under an hour. ... show more
Reviewed in the United States on March 30, 2015 by Country Livin

  • The jury is still out on these.
I replaced the rotors and pads with these about 4 months ago and I am starting to feel a pulsation when I apply the brakes. It feels like a bad rotor but they are brand new and the car is driven locally about 20 miles a day. They should not be warping so fast. If I determine it was the rotors I will amend my review. ... show more
Reviewed in the United States on December 19, 2019 by WEDisney

  • Price QUALITY
Excellent GM QUALITY FOR 07 IMPALA AND PRICE NO CHEAPER THAN AMAZON.COM
Reviewed in the United States on December 16, 2019 by RPF

  • Good quality
They haven't warped yet. About 4000 miles with city driving. Much better than aftermarket.
Reviewed in the United States on October 19, 2019 by Roman B.

  • A+
Product as shown
Reviewed in the United States on September 22, 2021 by Christopher R DuVall

  • Perfect Fit
Perfect Fit on my daughters car. Now I know she is safe and can stop on a dime, or some other currency.
Reviewed in the United States on December 26, 2018 by Ben Oaks

  • Oem parts
Oem parts at a fraction of the cost.
Reviewed in the United States on May 29, 2020 by Sam

  • Works good
Good value
Reviewed in the United States on September 27, 2019 by Ricky Dunn

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...