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ACDelco 18A81958 - ACDELCO 18A81958 -
$6999
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ACDELCO part description
Product Description
Front Brake Rotor
Product Attributes
| Inside Diameter | 7.547 IN |
| Center Hole Diameter | 69.1 MM |
| Height (in) | 1.842519685 in |
| Bolt Circle Diameter (in) | 4.5 in |
| Bolt Hole Quantity | 5 |
| Discard Thickness | 0.921 IN |
| Discard Thickness | 23.4 MM |
| Nominal Thickness | 25 MM |
| Height (mm) | 46.8 mm |
| Bolt Circle Diameter (mm) | 114.3 mm |
| Disc Finish | Coated |
| Material | Cast Iron |
| Mounting Bolt Hole Circle Diameter | 4.488 IN |
| Product Description | ACDelco Gold (Professional) Disc Brake Rotors are a high quality alternative to Original Equipment (OE) parts. They feature a thickness variation that is less than 0.0004 to minimize pedal pulsation, noise, and help to extend brake pad life. These rotors meet the SAE standard for structural integrity with OE matched G3000 qualified material delivering guaranteed performance. Also, no machining is required. ACDelco Gold (Professional) Disc Brake Rotors are ready to be installed right out of the box. 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. ⚠<b> WARNING:</b> Cancer and Reproductive Harm - www.P65Warnings.ca.gov |
| Good Maintenance Practices - Section 1 - Bullet 2 | Calipers and wheel cylinders should be checked every brake inspection and serviced or replaced as required. |
| Good Maintenance Practices - Section 1 - Bullet 1 | Check brake fluid level at every oil change. Replace fluid according to owner's manual recommendations. |
| Good Maintenance Practices - Section 1 - Bullet 4 | Check the thickness of your brake pads. |
| FAQ - Question 1 | Does ACDelco offer other grades of brake rotors? |
| Center Hole Diameter | 2.72 IN |
| Features & Benefits - Bullet 3 | Follows original manufacturers' designs for dispersing heat, helping to prolong pad and rotor life while reducing noise and vibration |
| Construction | Full Cast |
| Features & Benefits - Bullet 2 | Independently tested with Noise/Vibration/Harshness (NVH) and durability/wear testing; resulting in high quality and reliable products |
| Good Maintenance Practices - Section 1 - Bullet 3 | Inspect the brake lines for rust, punctures, or visible leaks (You may be able to do this, but consult a qualified technician if necessary). |
| Features & Benefits - Bullet 1 | Inspected for balance; resulting in smooth brake operation and noise reduction |
| Good Maintenance Practices - Section 2 - Bullet 2 | Inspection of brake lining and pads for wear or contamination by brake fluid or grease. |
| Good Maintenance Practices - Section 2 - Bullet 1 | Inspection of the brake hoses for brittleness or cracking. |
| Good Maintenance Practices - Section 2 - Bullet 3 | Inspection of wheel bearings and grease seals. |
| Features & Benefits - Bullet 6 | Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models |
| Programming Required | No |
| Good Maintenance Practices - Section 2 - Bullet 4 | Parking brake adjustments (as needed). |
| Features & Benefits - Bullet 5 | Premium aftermarket replacement part |
| Grade Type | Regular |
| Surface Type | Smooth |
| Features & Benefits - Bullet 4 | Some ACDelco Gold parts may have formerly appeared as ACDelco Professional |
| Good Maintenance Practices - Section 1 - Header | The following inspections and maintenance procedures can help prevent potential brake problems: |
| Good Maintenance Practices - Section 2 - Header | The following should be conducted by a qualified technician: |
| Hat Finish | Turned |
| Inside Diameter | 191.7 MM |
| Signs of Wear & Troubleshooting - Section 1 - Bullet 4 | Vehicle pulls to the left or right when brakes are applied. |
| Solid Or Vented Type Rotor | Vented |
| Signs of Wear & Troubleshooting - Section 1 - Bullet 5 | Visible ridges or deep grooves on the rotor surface. |
| Rust Resistant Coating | Yes |
| Slotted | Yes |
| FAQ - Answer 1 | Yes, ACDelco also offers GM OE brake rotor and Advantage brake rotors. |
| Mounting Bolt Hole Circle Diameter | 114 MM |
| Mounting Bolt Hole Diameter | 0.498 IN |
| Directional or Non-Directional Brake Surface | Non-Directional |
| Mounting Bolt Hole Quantity | 5 |
| Nominal Thickness | 0.984 IN |
| Outside Diameter | 12.008 IN |
| Outside Diameter | 305 MM |
| Overall Height | 1.843 IN |
| Overall Height | 46.8 MM |
| Stud/Lug Hole Quantity | 5 |
| Conventional Or Drum-In-Hat Type Rotor | Conventional |
| Mounting Bolt Hole Diameter | 12.65 MM |
| ABS Tone Ring Included | No |
Additional Information
| Warranty Special | 24 Months/Unlimited Miles Limited Warranty (Parts Only). Please see ACDelco.com for more details|24 Months/40,000 Kilometers Limited Warranty (Parts Only). Please see ACDelcocanada.com for more details |
| Harmonized Tariff Code (HTS) | 8708305030 |
| Country of Origin (Primary) | CN |
| Warranty Special UOM | TX |
| UPC | 00808709613985 |
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- Hyundai Tucson (2016-2021)
- Kia Optima (2016-2020)
- Hyundai Sonata (2015-2019)
A true OEM auto parts brand for GM and non-GM vehicles, ACDelco® offers a wide portfolio of parts designed to keep vehicles on the road longer. These parts work precisely and fit perfectly because they are designed, engineered, tested, and backed by General Motors. But ACDelco also carries aftermarket components that go through the same 18-step quality approval process as the OE parts. Whether customers choose OE or aftermarket, they’d get the same reliable performance, precise engineering, and superior reliability for years to come. ACDelco’s expansive product portfolio includes alternators, filters, batteries, brakes, belts and hoses, oil and fluids, and suspension parts. These products are made to meet GM and non-GM vehicles’ ever-evolving powertrain, collision, maintenance, and repair needs.
California residents see Prop 65 Warning(s)
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