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          ACDelco 18A2556A - Disc Brake Rotor (Front)

          MPN: 18A2556A
          0.0
          Vehicle Specific
          Check if this part fits your vehicle.
          • $51.95
          In stock
            • Newparts SKU
              1744263
            • Weight
              18.1 lbs
            • Dimensions (L x W x H)
              12.3 x 12.3 x 2.3 in
            • Manufacturer Part #
              18A2556A
          • Brand
            ACDelco
          • Position
            Front
          • Manufacturer
            ACDelco
          • MPN
            18A2556A
          • Features
            ABS Tone Ring Included : No
            ABS Tone Ring Included : No
            Bolt Circle Diameter (in) : 4.25
            Bolt Circle Diameter (mm) : 107.9
            Bolt Hole Quantity : 5
            Bolt Hole Quantity : 5
            Center Bore Diameter (in) : 2.5in
            Center Bore Diameter (mm) : 63.5mm
            Center Hole Diameter : 2.504
            Center Hole Diameter : 63.6
            Construction : Full Cast
            Construction : Full Cast
            Conventional Or Drum-In-Hat Type Rotor : Conventional
            Directional or Non-Directional Brake Surface : No
            Disc Finish : Directional
            Disc Finish : Directional
            Discard Thickness : 0.91
            Discard Thickness : 0.910
            Discard Thickness : 23.1
            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
            Grade Type : Regular
            Hat Finish : Plain
            Hat Finish : Plain
            Height (in) : 1.9
            Height (mm) : 48.3
            Height : 1.9
            Length (in) : 12.3
            Material : Cast Iron
            Material : Cast Iron
            Mounting Bolt Hole Circle Diameter : 107.95
            Mounting Bolt Hole Circle Diameter : 4.25
            Mounting Bolt Hole Diameter : 0.54
            Mounting Bolt Hole Diameter : 13.7
            Nominal Thickness : 0.98
            Nominal Thickness : 0.980
            Nominal Thickness : 24.9
            Outside Diameter : 11.8
            Outside Diameter : 11.811
            Outside Diameter : 300
            Overall Height : 1.917
            Overall Height : 48.7
            Product 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. âš  WARNING: Cancer and Reproductive Harm - https://www.P65Warnings.ca.gov
            Programming Required : No
            Rust Resistant Coating : No
            Rust Resistant Coating : No
            Slotted : No
            Slotted : No
            Solid Or Vented Type Rotor : Vented
            Solid Or Vented Type Rotor : Vented
            Stud/Lug Hole Quantity : 5
            Surface Type : SMOOTH
            Surface Type : Smooth
            Weight (lb) : 18.1
            Width (in) : 12.3
          • Part Type
            Disc Brake Rotor
          • Fitment
            • Fitment Type
              Vehicle Specific
          YearMakeModelSubmodelNotes
          2007VolvoV502.4i (2.4 L5 GAS)Notes: Rotor Diameter 300mm
          2007VolvoV50T5 (2.5 L5 GAS)Notes: Rotor Diameter 300mm
          2007VolvoC70T5 (2.5 L5 GAS)Notes: Rotor Diameter 300mm
          2007VolvoS402.4i (2.4 L5 GAS)Notes: Rotor Diameter 300mm
          2007VolvoS40T5 (2.5 L5 GAS)Notes: Rotor Diameter 300mm
          2010VolvoC70T5 (2.5 L5 GAS)Notes: Rotor Diameter 300mm
          2010VolvoV502.4i (2.4 L5 GAS)Notes: Rotor Diameter 300mm
          2010VolvoV50T5 R-Design (2.5 L5 GAS)Notes: Rotor Diameter 300mm
          2010VolvoC30T5 (2.5 L5 GAS)Notes: Rotor Diameter 300mm
          2010VolvoC30T5 R-Design (2.5 L5 GAS)Notes: Rotor Diameter 300mm
          2010VolvoS402.4i (2.4 L5 GAS)Notes: Rotor Diameter 300mm
          2010VolvoS40T5 R-Design (2.5 L5 GAS)Notes: Rotor Diameter 300mm
          2011VolvoC30T5 (2.5 L5 GAS)Notes: Rotor Diameter 300mm
          2011VolvoC30T5 R-Design (2.5 L5 GAS)Notes: Rotor Diameter 300mm
          2011VolvoC70T5 (2.5 L5 GAS)Notes: Rotor Diameter 300mm
          2011VolvoV50T5 (2.5 L5 GAS)Notes: Rotor Diameter 300mm
          2011VolvoV50T5 R-Design (2.5 L5 GAS)Notes: Rotor Diameter 300mm
          2011VolvoS40T5 (2.5 L5 GAS)Notes: Rotor Diameter 300mm
          2011VolvoS40T5 R-Design (2.5 L5 GAS)Notes: Rotor Diameter 300mm
          2005VolvoV50i (2.4 L5 GAS)Notes: Rotor Diameter 300mm
          2005VolvoV50T5 (2.5 L5 GAS)Notes: Rotor Diameter 300mm
          2005VolvoS40i (2.4 L5 GAS)Notes: Rotor Diameter 300mm
          2005VolvoS40T5 (2.5 L5 GAS)Notes: Rotor Diameter 300mm
          2008VolvoC70T5 (2.5 L5 GAS)Notes: Rotor Diameter 300mm
          2008VolvoV502.4i (2.4 L5 GAS)Notes: Rotor Diameter 300mm
          2008VolvoV50T5 (2.5 L5 GAS)Notes: Rotor Diameter 300mm
          2008VolvoC30T5 (2.5 L5 GAS)Notes: Rotor Diameter 300mm
          2008VolvoC30T5 R-Design (2.5 L5 GAS)Notes: Rotor Diameter 300mm
          2008VolvoS402.4i (2.4 L5 GAS)Notes: Rotor Diameter 300mm
          2008VolvoS40T5 (2.5 L5 GAS)Notes: Rotor Diameter 300mm
          2006VolvoV502.4i (2.4 L5 GAS)Notes: Rotor Diameter 300mm
          2006VolvoV50T5 (2.5 L5 GAS)Notes: Rotor Diameter 300mm
          2006VolvoC70T5 (2.5 L5 GAS)Notes: Rotor Diameter 300mm
          2006VolvoS402.4i (2.4 L5 GAS)Notes: Rotor Diameter 300mm
          2006VolvoS40T5 (2.5 L5 GAS)Notes: Rotor Diameter 300mm
          2009VolvoC70T5 (2.5 L5 GAS)Notes: Rotor Diameter 300mm
          2009VolvoV502.4i (2.4 L5 GAS)Notes: Rotor Diameter 300mm
          2009VolvoV50T5 (2.5 L5 GAS)Notes: Rotor Diameter 300mm
          2009VolvoC30T5 (2.5 L5 GAS)Notes: Rotor Diameter 300mm
          2009VolvoC30T5 R-Design (2.5 L5 GAS)Notes: Rotor Diameter 300mm
          2009VolvoS402.4i (2.4 L5 GAS)Notes: Rotor Diameter 300mm
          2009VolvoS40T5 (2.5 L5 GAS)Notes: Rotor Diameter 300mm
          2012VolvoC30T5 (2.5 L5 GAS)
          2012VolvoC30T5 R-Design (2.5 L5 GAS)
          2012VolvoC70T5 (2.5 L5 GAS)Notes: Rotor Diameter 300mm
          2013FordC-MaxEnergi SEL (2.0 L4 PHEV)Notes: From 10/01/2012
          2013FordEscapeS (2.5 L4 GAS)
          2013FordEscapeSE (1.6 L4 GAS)
          2013FordEscapeSEL (1.6 L4 GAS)
          2013VolvoC30T5 (2.5 L5 GAS)
          2013VolvoC30T5 R-Design (2.5 L5 GAS)
          2014FordC-MaxEnergi SEL (2.0 L4 PHEV)
          2014FordEscapeS (2.5 L4 GAS)
          2014FordEscapeSE (1.6 L4 GAS)
          2014FordEscapeTitanium (1.6 L4 GAS)
          2015FordC-MaxEnergi SEL (2.0 L4 PHEV)
          2015FordEscapeS (2.5 L4 GAS)
          2015FordEscapeSE (2.5 L4 GAS)
          2015FordEscapeSE (1.6 L4 GAS)
          2015FordEscapeTitanium (1.6 L4 GAS)
          2016FordC-MaxEnergi SEL (2.0 L4 PHEV)
          2016FordEscapeS (2.5 L4 GAS)
          2016FordEscapeSE (2.5 L4 GAS)
          2016FordEscapeSE (1.6 L4 GAS)
          2016FordEscapeTitanium (1.6 L4 GAS)
          2017FordC-MaxEnergi Titanium (2.0 L4 PHEV)
          2017FordC-MaxEnergi SE (2.0 L4 PHEV)
          2017FordEscapeS (2.5 L4 GAS)
          2017FordEscapeSE (1.5 L4 GAS)
          2017FordEscapeTitanium (1.5 L4 GAS)
          2018FordEscapeS (2.5 L4 GAS)
          2018FordEscapeSE (1.5 L4 GAS)
          2018FordEscapeSEL (1.5 L4 GAS)
          2019FordEscapeS (2.5 L4 GAS)
          2019FordEscapeSE (1.5 L4 GAS)
          2019FordEscapeSEL (1.5 L4 GAS)
          2004VolvoS40i (2.4 L5 GAS)Notes: Rotor Diameter 300mm
          2004VolvoS40T5 (2.5 L5 GAS)Notes: Rotor Diameter 300mm
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          Warranty Overview

          At Newparts, we stand behind the quality of the products we sell. Every part we offer is backed by a warranty designed to give you peace of mind and protect your investment.

          Standard Warranty – Most Parts

          • Coverage: 2 years or 24,000 miles (whichever comes first) from purchase date.

          • Protection: Defects in materials or workmanship under normal personal use.

          • Eligibility: Applies only to the original purchaser and the vehicle where the part was first installed.

          • Exclusions:

            • Wear-and-tear items (brake pads, filters, bulbs, wipers, etc.)

            • Commercial, fleet, rideshare, off-road, or racing use

            • Improper installation, misuse, accidents, or modifications

          • Not Covered: Labor, shipping, towing, or incidental costs.

          Bison Performance Warranty – Our House Brand

          • Coverage: Limited Lifetime Warranty for as long as you own your vehicle.

          • Applies To: All products sold under the Bison Performance label.

          • Premium Protection: Goes beyond our standard warranty — if it’s a Bison product, the 2-year/24k mile limit is replaced with lifetime coverage.

          • Exclusions: Same as the standard warranty (normal wear, commercial use, improper installation, etc.).

          • What’s Included: Replacement of the defective product (labor and shipping excluded).

          Warranty Claim Requirements

          To keep claims fast and fair, we require:

          • Proof of purchase (invoice or order confirmation).

          • Photos or videos showing the defective part, order number, date, VIN, and odometer reading.

          • Diagnostic reports or part returns for non-visible issues may be requested.

          • Claims must be truthful, properly documented, and reflect normal consumer use.

          Buy With Confidence: We back our products because we believe in their quality, with a transparent, customer-first warranty process you can trust. And with Bison Performance products, you’ll enjoy Limited Lifetime protection—an assurance few brands can match.

          For full details and exclusions, please see our complete Warranty Terms & Conditions.


          This summary is for convenience only. For full warranty coverage details, exclusions, and requirements, see our official Warranty Terms & Conditions. In case of conflict, the full policy governs.

          Return Policy Overview

          Most parts can be returned within 30 days of delivery if unused, uninstalled, and in original packaging.
          To start a return, use our Return Portal or contact support.

          • Restocking fee: Up to 20% may apply for certain orders (buyer’s remorse, order errors, or special-order items)

          • Refunds: Issued to your original payment method within 3–5 business days after inspection

          • Exchanges: Not automatic — please return and reorder

          • Replacements: May be approved for incorrect or defective items reported within 7 days

          Not returnable:

          • Used or installed parts

          • Electrical components

          • Opened filter kits, gaskets, or contaminated items

          • Final sale or custom orders

          Important Notes:

          • Return shipping is your responsibility unless we made a verified error

          • Fitment is the customer’s responsibility (we can assist, but do not guarantee)

          • Country of origin may vary and is not grounds for return

          For complete details, please see our full Return Policy.



          This Returns summary is provided for convenience only. All returns, refunds, and exchanges are subject to the complete Returns Policy. In the event of any conflict, the full policy governs.

          Fast, Reliable Shipping — Straight to Your Door

          We ship most orders the same day when placed before 2 PM CST (Monday–Friday). Our main warehouse is just east of Nashville, TN, and we also ship from multiple locations nationwide to get your order to you as quickly as possible.

          • We use trusted carriers like UPS, FedEx, and USPS.

          • Tracking info is emailed to you as soon as your order ships.

          • Delivery estimates at checkout are based on carrier data, but not guaranteed.

          Need help with a shipment?

          If your order is missing, damaged, or incorrect, just let us know within 5 days of delivery. We’ll walk you through the quick claim process — including a few photos to help us make things right.

          For full details, please see our complete Shipping Policy.


          This Shipping summary is provided for convenience only. Delivery times, carrier terms, fees, restrictions,  risk of loss, and other details are governed by our complete Shipping Policy. In the event of any conflict, the full policy governs.

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