No image available
Related Products
Front Brake Rotor - ACDelco (18A2931A)
2011-2018 ACDelco - 18A2931A
- Sale Price: $58.29
- Sale Price: $58.29
Review Fitment & Product Details
Details
- Brand:
- SKU:
18A2931A
- GTIN: 00808709109464
- UPC: 808709109464
- Other Names:
19306799
- 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. 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. ⚠ WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
disc-brake-rotor;rotor;brake-rotor;disc-brake; - Condition: New
Pricing is valid online only and may vary in your local store
Vehicle Fitment
Vehicle Fitment
| Year | Make | Model | Body & Trim | Engine & Transmission |
|---|
Key Product Information
Additional Information
| Brand | ACDelco Silver |
| ABS Tone Ring Included | No |
| Bolt Circle Diameter (in) | 4.5 |
| Bolt Circle Diameter (mm) | 114.3 |
| Bolt Hole Quantity | 5 |
| Center Hole Diameter | 62 2.44 |
| Construction | Full Cast |
| Conventional Or Drum-In-Hat Type Rotor | Conventional |
| Directional or Non-Directional Brake Surface | No |
| Disc Finish | Non Directional |
| Discard Thickness | 25 0.984 |
| Features & Benefits - Bullet 1 | Some ACDelco Silver parts may have formerly appeared as ACDelco Advantage |
| Features & Benefits - Bullet 2 | Economical value with dependable quality |
| Features & Benefits - Bullet 3 | For General Motors vehicles as well as most makes and models |
| Grade Type | Regular |
| Hat Finish | Plain |
| Height (in) | 1.9 |
| Height (mm) | 48.3 |
| Inside Diameter | 7.449 189.2 |
| Length (in) | 12.38 |
| Material | Cast Iron |
| Mounting Bolt Hole Circle Diameter | 4.5 114.3 |
| Mounting Bolt Hole Diameter | 0.566 14.4 |
| Mounting Bolt Hole Quantity | 5 |
| Nominal Thickness | 1.102 28 |
| Outside Diameter | 11.654 296 |
| Overall Height | 1.945 49.4 |
| Programming Required | No |
| Rust Resistant Coating | No |
| Slotted | No |
| Solid Or Vented Type Rotor | Vented |
| Stud/Lug Hole Quantity | 5 |
| Surface Type | Smooth |
| Weight (lb) | 16.8 |
| Width (in) | 12.38 |
Features and Benefits
Interchange
Interchange
Policies
Policies
Product Reviews
Product Reviews
Brand
ACDelco
Store
AutoNationParts.com
Genuine OEM & Premium Aftermarket Replacement Parts Online
Shop high-quality OEM and aftermarket components online at AutoNationParts.com. We provide reliable replacement parts, factory maintenance essentials, and specialized hardware performance upgrades for nearly every major vehicle make and model on the road.
Currently viewing detailed specifications and pricing for Front Brake Rotor (SKU: 18A2931A). You can explore our master catalog of auto parts categories, or jump directly into core high-demand vehicle infrastructure systems below:
- Brake Pads & Brake Systems
- Engine & Cabin Air Filters
- Batteries & Electrical Parts
- Suspension & Steering Components
- Fluids & Maintenance Products
With strategic nationwide distribution hubs, orders for Front Brake Rotor and related catalog items process immediately and ship out in 1–2 business days. Learn more about our fast domestic delivery windows via our shipping policy.
Verifying Fitment for Front Brake Rotor
To guarantee 100% complete compatibility before checking out, ensure you cross-reference your vehicle's unique 17-digit VIN (Vehicle Identification Number) or enter your exact manufacturer part number. Because automotive engineering frameworks shift across model years and specific engine packages, confirming your mechanical alignment ensures a flawless installation.
Explore related systems in our database: Brake Parts | Filters | Suspension
OEM Performance vs. Premium Aftermarket Alternatives
Whether you choose an OEM (Original Equipment Manufacturer) part or a trusted third-party alternative, AutoNation Parts ensures that your technical hardware fulfills rigorous road-testing and assembly standards.
- OEM Inventory: Offers exact factory engineering specs, direct electrical or mechanical compatibility, and protects existing manufacturer warranties.
- Aftermarket Options: Provides highly cost-effective, dependable solutions with wider availability across legacy vehicle models.
Browse our complete catalog pathway: OEM Auto Parts Collection | Aftermarket Alternatives
Fast Nationwide Shipping (1–2 Business Days)
We leverage a robust, interconnected network of regional U.S. fulfillment facilities to route your components via the most efficient transport channels, keeping vehicle downtime to an absolute minimum:
- Chicago – Midwest logistics hub
- Atlanta – Southeast distribution network
- Houston – Central regional fulfillment
- Los Angeles – West Coast shipping facility
- Miami – East Coast distribution hub
Learn more: Shipping Information & Logistics Rates
Why Source Your Inventory from AutoNation Parts?
- Extensive OEM and premium aftermarket parts in one centralized marketplace
- Fast nationwide shipping with tracking transparency to reduce project downtime
- Trusted automotive retailer dedicated to component precision and customer support
- Secure encrypted checkout paired with verified real-time active inventory data
- Catalog coverage spanning the majority of vehicle model configurations on the road
Shop AutoNation Parts Online Today
OEM & Aftermarket Auto Parts FAQ | AutoNation Parts
What are OEM auto parts?
OEM auto parts are original equipment components manufactured directly by the vehicle factory or licensed suppliers to match your vehicle’s original assembly specifications for an exact fit and flawless performance.
What are aftermarket auto parts?
Aftermarket auto parts are components produced by independent third-party manufacturers. They serve as highly affordable, readily available replacement options or heavy-duty performance upgrades.
How do I ensure Front Brake Rotor fits my exact vehicle?
The fastest way to guarantee fitment for SKU 18A2931A is to use our advanced Search by Vehicle tool to isolate components by your unique 17-digit VIN, or filter results by selecting your year, make, model, and trim level.
Can I apply promotional discounts to routine maintenance orders?
Yes. For qualifying orders of common maintenance components such as engine filters, cabin air filters, ignition spark plugs, or fluids, you can enter promo code MAINT5SAVE at checkout to apply direct tiered savings.
How fast is shipping for auto parts online?
Most in-stock orders process and depart our distribution centers within 1–2 business days. We utilize multiple domestic regional hubs to route shipments via the most efficient paths possible.
Is it safe to buy auto parts online?
Yes. AutoNation Parts integrates secure checkout protocols, strict data encryption, and fully verified real-time warehouse inventory to make sure your online purchasing experience is secure and dependable.