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Need expert help? Reach out to us via live chat MON-SAT, 9AM to 5PM ET, for support. Our specialists are ready to assist you!

Please, add your first item to the wishlist

Select vehicle to confirm fitment

Chevrolet GMC Disc Brake Rotor (Rear) ACDelco 18A2797SD

PART#: 18A2797SD
ACDelco

$149.95

In stock

Fitments
YearMakeModelSubmodelEngineFuel TypePositionNote
2015ChevroletSilverado 3500 HDLT6.6V8DIESELRearTo 08/2014; With Dual Rear Wheels | 4WD; | RWD;
2015ChevroletSilverado 3500 HDWT6.0V8GASRearTo 08/2014; With Dual Rear Wheels | 4WD; | RWD;
2015ChevroletSilverado 3500 HDWT6.0V8CNGRearTo 08/2014; With Dual Rear Wheels | 4WD; | RWD;
2015ChevroletSilverado 3500 HDLT6.0V8GASRearTo 08/2014; With Dual Rear Wheels | 4WD; | RWD;
2015ChevroletSilverado 3500 HDLT6.0V8CNGRearTo 08/2014; With Dual Rear Wheels | 4WD; | RWD;
2015ChevroletSilverado 3500 HDWT6.0V8FLEXRearTo 08/2014; With Dual Rear Wheels | 4WD; | RWD;
2015ChevroletSilverado 3500 HDLTZ6.0V8GASRearTo 08/2014; With Dual Rear Wheels | 4WD; | RWD;
2015ChevroletSilverado 3500 HDLT6.0V8FLEXRearTo 08/2014; With Dual Rear Wheels | 4WD; | RWD;
2015ChevroletSilverado 3500 HDLTZ6.6V8DIESELRearTo 08/2014; With Dual Rear Wheels | 4WD; | RWD;
2015ChevroletSilverado 3500 HDWT6.6V8DIESELRearTo 08/2014; With Dual Rear Wheels | 4WD; | RWD;
2015ChevroletSilverado 3500 HDHigh Country6.0V8GASRearTo 08/2014; With Dual Rear Wheels | 4WD; | RWD;
2015ChevroletSilverado 3500 HDLTZ6.0V8FLEXRearTo 08/2014; With Dual Rear Wheels | 4WD; | RWD;
2015ChevroletSilverado 3500 HDHigh Country6.6V8DIESELRearTo 08/2014; With Dual Rear Wheels | 4WD; | RWD;
2015ChevroletSilverado 3500 HDHigh Country6.0V8FLEXRearTo 08/2014; With Dual Rear Wheels | 4WD; | RWD;
2015GMCSierra 3500 HDBase6.6V8DIESELRearTo 08/2014; With Dual Rear Wheels | 4WD; | RWD;
2015GMCSierra 3500 HDSLT6.6V8DIESELRearTo 08/2014; With Dual Rear Wheels | 4WD; | RWD;
2015GMCSierra 3500 HDSLE6.0V8FLEXRearTo 08/2014; With Dual Rear Wheels | 4WD; | RWD;
2015GMCSierra 3500 HDDenali6.0V8GASRearTo 08/2014; With Dual Rear Wheels | 4WD; | RWD;
2015GMCSierra 3500 HDDenali6.0V8CNGRearTo 08/2014; With Dual Rear Wheels | 4WD; | RWD;
2015GMCSierra 3500 HDBase6.0V8GASRearTo 08/2014; With Dual Rear Wheels | 4WD; | RWD;
2015GMCSierra 3500 HDBase6.0V8CNGRearTo 08/2014; With Dual Rear Wheels | 4WD; | RWD;
2015GMCSierra 3500 HDBase6.0V8FLEXRearTo 08/2014; With Dual Rear Wheels | 4WD; | RWD;
2015GMCSierra 3500 HDSLT6.0V8GASRearTo 08/2014; With Dual Rear Wheels | 4WD; | RWD;
2015GMCSierra 3500 HDSLT6.0V8FLEXRearTo 08/2014; With Dual Rear Wheels | 4WD; | RWD;
2015GMCSierra 3500 HDSLT6.0V8CNGRearTo 08/2014; With Dual Rear Wheels | 4WD; | RWD;
2015GMCSierra 3500 HDSLE6.0V8CNGRearTo 08/2014; With Dual Rear Wheels | 4WD; | RWD;
2015GMCSierra 3500 HDSLE6.0V8GASRearTo 08/2014; With Dual Rear Wheels | 4WD; | RWD;
2015GMCSierra 3500 HDDenali6.6V8DIESELRearTo 08/2014; With Dual Rear Wheels | 4WD; | RWD;
2015GMCSierra 3500 HDSLE6.6V8DIESELRearTo 08/2014; With Dual Rear Wheels | 4WD; | RWD;
2015GMCSierra 3500 HDDenali6.0V8FLEXRearTo 08/2014; With Dual Rear Wheels | 4WD; | RWD;
2014ChevroletSilverado 3500 HDLT6.6V8DIESELRearWith Dual Rear Wheels | 4WD; | RWD;
2014ChevroletSilverado 3500 HDLTZ6.6V8DIESELRearWith Dual Rear Wheels | 4WD; | RWD;
2014ChevroletSilverado 3500 HDWT6.0V8GASRearWith Dual Rear Wheels | 4WD; | RWD;
2014ChevroletSilverado 3500 HDWT6.6V8DIESELRearWith Dual Rear Wheels | 4WD; | RWD;
2014ChevroletSilverado 3500 HDLT6.0V8GASRearWith Dual Rear Wheels | 4WD; | RWD;
2014ChevroletSilverado 3500 HDWT6.0V8FLEXRearWith Dual Rear Wheels | 4WD; | RWD;
2014ChevroletSilverado 3500 HDLTZ6.0V8GASRearWith Dual Rear Wheels | 4WD; | RWD;
2014ChevroletSilverado 3500 HDLT6.0V8FLEXRearWith Dual Rear Wheels | 4WD; | RWD;
2014ChevroletSilverado 3500 HDLTZ6.0V8FLEXRearWith Dual Rear Wheels | 4WD; | RWD;
2014GMCSierra 3500 HDSLT6.0V8GASRearWith Dual Rear Wheels | 4WD; | RWD;
2014GMCSierra 3500 HDSLE6.0V8GASRearWith Dual Rear Wheels | 4WD; | RWD;
2014GMCSierra 3500 HDSLT6.6V8DIESELRearWith Dual Rear Wheels | 4WD; | RWD;
2014GMCSierra 3500 HDWT6.0V8GASRearWith Dual Rear Wheels | 4WD; | RWD;
2014GMCSierra 3500 HDWT6.6V8DIESELRearWith Dual Rear Wheels | 4WD; | RWD;
2014GMCSierra 3500 HDSLE6.6V8DIESELRearWith Dual Rear Wheels | 4WD; | RWD;
2014GMCSierra 3500 HDDenali6.0V8FLEXRearWith Dual Rear Wheels | 4WD; | RWD;
2014GMCSierra 3500 HDSLT6.0V8FLEXRearWith Dual Rear Wheels | 4WD; | RWD;
2014GMCSierra 3500 HDDenali6.0V8GASRearWith Dual Rear Wheels | 4WD; | RWD;
2014GMCSierra 3500 HDWT6.0V8FLEXRearWith Dual Rear Wheels | 4WD; | RWD;
2014GMCSierra 3500 HDSLE6.0V8FLEXRearWith Dual Rear Wheels | 4WD; | RWD;
2014GMCSierra 3500 HDDenali6.6V8DIESELRearWith Dual Rear Wheels | 4WD; | RWD;
2013ChevroletSilverado 3500 HDLT6.0V8FLEXRearWith Dual Rear Wheels | 4WD; | RWD;
2013ChevroletSilverado 3500 HDWT6.6V8DIESELRearWith Dual Rear Wheels | 4WD; | RWD;
2013ChevroletSilverado 3500 HDLTZ6.0V8FLEXRearWith Dual Rear Wheels | 4WD; | RWD;
2013ChevroletSilverado 3500 HDLT6.0V8GASRearWith Dual Rear Wheels | 4WD; | RWD;
2013ChevroletSilverado 3500 HDLT6.6V8DIESELRearWith Dual Rear Wheels | 4WD; | RWD;
2013ChevroletSilverado 3500 HDLTZ6.6V8DIESELRearWith Dual Rear Wheels | 4WD; | RWD;
2013ChevroletSilverado 3500 HDWT6.0V8FLEXRearWith Dual Rear Wheels | 4WD; | RWD;
2013ChevroletSilverado 3500 HDLTZ6.0V8GASRearWith Dual Rear Wheels | 4WD; | RWD;
2013ChevroletSilverado 3500 HDWT6.0V8GASRearWith Dual Rear Wheels | 4WD; | RWD;
2013GMCSierra 3500 HDSLT6.0V8FLEXRearWith Dual Rear Wheels | 4WD; | RWD;
2013GMCSierra 3500 HDSLE6.0V8FLEXRearWith Dual Rear Wheels | 4WD; | RWD;
2013GMCSierra 3500 HDSLT6.6V8DIESELRearWith Dual Rear Wheels | 4WD; | RWD;
2013GMCSierra 3500 HDDenali6.6V8DIESELRearWith Dual Rear Wheels | 4WD; | RWD;
2013GMCSierra 3500 HDWT6.6V8DIESELRearWith Dual Rear Wheels | 4WD; | RWD;
2013GMCSierra 3500 HDWT6.0V8FLEXRearWith Dual Rear Wheels | 4WD; | RWD;
2013GMCSierra 3500 HDSLT6.0V8GASRearWith Dual Rear Wheels | 4WD; | RWD;
2013GMCSierra 3500 HDWT6.0V8GASRearWith Dual Rear Wheels | 4WD; | RWD;
2013GMCSierra 3500 HDSLE6.0V8GASRearWith Dual Rear Wheels | 4WD; | RWD;
2013GMCSierra 3500 HDSLE6.6V8DIESELRearWith Dual Rear Wheels | 4WD; | RWD;
2013GMCSierra 3500 HDDenali6.0V8FLEXRearWith Dual Rear Wheels | 4WD; | RWD;
2012ChevroletSilverado 3500 HDLTZ6.6V8DIESELRearWith Dual Rear Wheels | 4WD; | RWD;
2012ChevroletSilverado 3500 HDWT6.0V8GASRearWith Dual Rear Wheels | 4WD; | RWD;
2012ChevroletSilverado 3500 HDWT6.6V8DIESELRearWith Dual Rear Wheels | 4WD; | RWD;
2012ChevroletSilverado 3500 HDLTZ6.0V8FLEXRearWith Dual Rear Wheels | 4WD; | RWD;
2012ChevroletSilverado 3500 HDLT6.0V8FLEXRearWith Dual Rear Wheels | 4WD; | RWD;
2012ChevroletSilverado 3500 HDLT6.0V8GASRearWith Dual Rear Wheels | 4WD; | RWD;
2012ChevroletSilverado 3500 HDWT6.0V8FLEXRearWith Dual Rear Wheels | 4WD; | RWD;
2012ChevroletSilverado 3500 HDLTZ6.0V8GASRearWith Dual Rear Wheels | 4WD; | RWD;
2012ChevroletSilverado 3500 HDLT6.6V8DIESELRearWith Dual Rear Wheels | 4WD; | RWD;
2012GMCSierra 3500 HDSLT6.0V8FLEXRearWith Dual Rear Wheels | 4WD; | RWD;
2012GMCSierra 3500 HDWT6.0V8FLEXRearWith Dual Rear Wheels | 4WD; | RWD;
2012GMCSierra 3500 HDSLE6.0V8FLEXRearWith Dual Rear Wheels | 4WD; | RWD;
2012GMCSierra 3500 HDDenali6.6V8DIESELRearWith Dual Rear Wheels | 4WD; | RWD;
2012GMCSierra 3500 HDSLT6.0V8GASRearWith Dual Rear Wheels | 4WD; | RWD;
2012GMCSierra 3500 HDSLE6.0V8GASRearWith Dual Rear Wheels | 4WD; | RWD;
2012GMCSierra 3500 HDSLT6.6V8DIESELRearWith Dual Rear Wheels | 4WD; | RWD;
2012GMCSierra 3500 HDWT6.0V8GASRearWith Dual Rear Wheels | 4WD; | RWD;
2012GMCSierra 3500 HDWT6.6V8DIESELRearWith Dual Rear Wheels | 4WD; | RWD;
2012GMCSierra 3500 HDSLE6.6V8DIESELRearWith Dual Rear Wheels | 4WD; | RWD;
2012GMCSierra 3500 HDDenali6.0V8FLEXRearWith Dual Rear Wheels | 4WD; | RWD;
2011ChevroletSilverado 3500 HDLT6.0V8FLEXRearWith Dual Rear Wheels | 4WD; | RWD;
2011ChevroletSilverado 3500 HDWT6.6V8DIESELRearWith Dual Rear Wheels | 4WD; | RWD;
2011ChevroletSilverado 3500 HDLTZ6.0V8FLEXRearWith Dual Rear Wheels | 4WD; | RWD;
2011ChevroletSilverado 3500 HDWT6.0V8GASRearWith Dual Rear Wheels | 4WD; | RWD;
2011ChevroletSilverado 3500 HDLT6.0V8GASRearWith Dual Rear Wheels | 4WD; | RWD;
2011ChevroletSilverado 3500 HDLT6.6V8DIESELRearWith Dual Rear Wheels | 4WD; | RWD;
2011ChevroletSilverado 3500 HDWT6.0V8FLEXRearWith Dual Rear Wheels | 4WD; | RWD;
2011ChevroletSilverado 3500 HDLTZ6.0V8GASRearWith Dual Rear Wheels | 4WD; | RWD;
2011ChevroletSilverado 3500 HDLTZ6.6V8DIESELRearWith Dual Rear Wheels | 4WD; | RWD;
2011GMCSierra 3500 HDSLT6.0V8GASRearWith Dual Rear Wheels | 4WD; | RWD;
2011GMCSierra 3500 HDWT6.0V8GASRearWith Dual Rear Wheels | 4WD; | RWD;
2011GMCSierra 3500 HDWT6.0V8FLEXRearWith Dual Rear Wheels | 4WD; | RWD;
2011GMCSierra 3500 HDSLE6.0V8GASRearWith Dual Rear Wheels | 4WD; | RWD;
2011GMCSierra 3500 HDSLE6.6V8DIESELRearWith Dual Rear Wheels | 4WD; | RWD;
2011GMCSierra 3500 HDDenali6.0V8FLEXRearWith Dual Rear Wheels | 4WD; | RWD;
2011GMCSierra 3500 HDSLT6.0V8FLEXRearWith Dual Rear Wheels | 4WD; | RWD;
2011GMCSierra 3500 HDSLT6.6V8DIESELRearWith Dual Rear Wheels | 4WD; | RWD;
2011GMCSierra 3500 HDSLE6.0V8FLEXRearWith Dual Rear Wheels | 4WD; | RWD;
2011GMCSierra 3500 HDWT6.6V8DIESELRearWith Dual Rear Wheels | 4WD; | RWD;
2011GMCSierra 3500 HDDenali6.6V8DIESELRearWith Dual Rear Wheels | 4WD; | RWD;
About ACDelco

When it comes to top-notch auto parts, one brand that stands tall is ACDelco. Popular for its commitment to quality and innovation, ACDelco has been a trusted name in the automotive industry. At Newparts.com, we're proud to offer a wide selection of ACDelco auto parts, including ACDelco spark plugs, ACDelco alternators, and ACDelco air filters, and other ACDelco parts, all at discounted prices.

ACDelco spark plugs are engineered to deliver exceptional performance and reliability, ensuring optimal engine operation and fuel efficiency. Whether you're cruising down the highway or navigating city streets, you can trust ACDelco spark plugs to keep your engine firing on all cylinders.

When it comes to power generation, ACDelco alternators are second to none. Designed to withstand the challenges of daily driving, ACDelco alternators deliver consistent power output to keep your vehicle's electrical systems running smoothly. With ACDelco alternators from Newparts.com, you can count on reliable performance mile after mile.

In addition to spark plugs and alternators, we also offer a range of ACDelco air filters to help keep your engine breathing clean, fresh air. ACDelco air filters are designed to trap dirt, dust, and other contaminants, preventing them from entering your engine and causing damage. With a high-quality ACDelco air filter from Newparts.com, you can enjoy improved engine performance and extended engine life.

At Newparts.com, we understand that getting the right parts quickly is essential. That's why we offer fast shipping on all ACDelco auto parts, so you can get back on the road with confidence. Plus, with our discounted prices, you can save big on the parts you need to keep your vehicle running smoothly. In case you want to purchase parts by phone, feel free to call us at 855-505-2886 and our customer service team will help you out. 

Whether you're in need of spark plugs, alternators, air filters, or any other ACDelco auto parts, Newparts.com has you covered. Shop our selection today and experience the quality and reliability of ACDelco for yourself.

Specifications
ABS Tone Ring IncludedNo
Center Hole Diameter130
Center Hole Diameter5.118
Conventional Or Drum-In-Hat Type RotorDrum-In-Hat
Discard Thickness1.5
Discard Thickness38.1
FAQ - Answer 1No, but it is a good idea to inspect them for wear-out, cracking, leaking etc.
FAQ - Answer 2No, but it is a good idea to inspect your brake rotors at each tire rotation.
FAQ - Question 1Do I have to replace all my brake parts when replacing my brake rotors?
FAQ - Question 2Do I have to replace my brake rotors after a certain amount of time?
Features & Benefits - Bullet 1Match OE vane configuration for reduced brake wear and optimal cooling
Features & Benefits - Bullet 2Damped iron metallurgy reduces noise and dissipates heat
Features & Benefits - Bullet 3Non-directional rotation eliminates the need for unique left and right designations
Features & Benefits - Bullet 4Mill balanced to reduce vibration
Features & Benefits - Bullet 5Some ACDelco Gold parts may have formerly appeared as ACDelco Professional
Features & Benefits - Bullet 6Premium aftermarket replacement part
Features & Benefits - Bullet 7Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models
Good Maintenance Practices - Section 1 - Bullet 1Check brake fluid level at every oil change. Replace fluid according to owner's manual recommendations.
Good Maintenance Practices - Section 1 - Bullet 2Calipers and wheel cylinders should be checked every brake inspection and serviced or replaced as required.
Good Maintenance Practices - Section 1 - Bullet 3Inspect the brake lines for rust, punctures or visible leaks (You may be able to do this, but consult a qualified technician if necessary).
Good Maintenance Practices - Section 1 - Bullet 4Check the thickness of your brake pads.
Good Maintenance Practices - Section 1 - HeaderThe following inspections and maintenance procedures can help prevent potential brake problems:
Good Maintenance Practices - Section 2 - Bullet 1Inspection of the brake hoses for brittleness or cracking.
Good Maintenance Practices - Section 2 - Bullet 2Inspection of brake lining and pads for wear or contamination by brake fluid or grease.
Good Maintenance Practices - Section 2 - Bullet 3Inspection of wheel bearings and grease seals.
Good Maintenance Practices - Section 2 - Bullet 4Parking brake adjustments (as needed).
Good Maintenance Practices - Section 2 - HeaderThe following should be conducted by a qualified technician:
Grade TypePerformance
Height (in)6.5
Length (in)14.3
Mounting Bolt Hole Circle Diameter130.05
Mounting Bolt Hole Circle Diameter5.12
Mounting Bolt Hole Diameter0.646
Mounting Bolt Hole Diameter16.4
Nominal Thickness1.58
Nominal Thickness40.15
Outside Diameter13.976
Outside Diameter355
Overall Height150
Overall Height5.906
Product DescriptionACDelco Gold (Professional) Performance (Severe Duty) Disc Brake Rotors are a high quality alternative to Original Equipment (OE) parts. These brake rotors provide reliable vehicle braking power. They feature a thickness variation that helps to minimize pedal pulsation, noise, and help to extend brake pad life. These brake rotors meet the SAE standard for structural integrity with OE matched material, delivering guaranteed performance. Black and gray fusion coating provides corrosion protection. These rotors are uniquely designed for off road vehicles, SUVs, trucks, and fleet trucks. ACDelco Gold (Professional) Performance (Severe Duty) Disc Brake Rotors are ready to be installed right out of the box - no machining required. ACDelco Gold (Professional) parts are manufactured to meet your expectations for fit, form, and function, making them a smart choice for General Motors vehicles, as well as most makes and models, including special applications. These high-quality parts are backed by General Motors. Some ACDelco Gold parts may have formerly appeared as ACDelco Professional. ⚠ WARNING: Cancer and Reproductive Harm - https://www.P65Warnings.ca.gov
Programming RequiredNo
Rust Resistant CoatingNo
Signs of Wear & Troubleshooting - Section 1 - Bullet 1Visible ridges on rotor surface.
Signs of Wear & Troubleshooting - Section 1 - Bullet 2Chirping, grinding, or squeaking noises when braking.
Signs of Wear & Troubleshooting - Section 1 - Bullet 3Difficulty stopping the vehicle.
Signs of Wear & Troubleshooting - Section 1 - Bullet 4A low or sinking brake pedal.
Signs of Wear & Troubleshooting - Section 1 - Bullet 5Braking causes the pedal and/or steering wheel to pulsate/vibrate (not to be confused with normal ABS operation.
Signs of Wear & Troubleshooting - Section 1 - Bullet 6Vehicle pulls to the left or right when brakes are applied.
Signs of Wear & Troubleshooting - Section 1 - HeaderBrake rotor signs of wear include:
Weight (lb)45
Width (in)14.3
Warranty
We offer a 2-year warranty on all parts that we sell. If the part fails within 2 years of purchase, please contact us for instructions to replace it. The warranty does not cover normal wear and tear or improper installation. On many parts, we also offer Extend product protection, which is a way to add up to 3 additional years for 5 total years of worry free coverage. Select your preferred term length and you're covered!
Delivery & Returns

Delivery Info

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Returns Info

Newparts.com offers a thirty (30) day return for refund for all items purchased through Newparts.com. To qualify for return and refund, all items must be new and in their original manufacturers box. To initiate a return, please contact our customer service. This information is only a summary. Complete shipping and return policy information can be found in our web site policies.

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