ACDELCO part description

Technical Specifications

Part Number 18A258A

Product Description

Front Brake Rotor

Product Attributes

Discard Thickness 1.215 IN
Nominal Thickness 1.285 IN
Center Bore Diameter (in) 3.1in
Height (in) 3.3 in
Bolt Circle Diameter (in) 5.5 in
Bolt Hole Quantity 6
Outside Diameter 11.61 IN
Width (in) 11.9 in
Length (In) 11.9 IN
Weight 16 lb
Mounting Bolt Hole Circle Diameter 139.7 MM
Mounting Bolt Hole Circle Diameter 5.5 IN
Height (mm) 66 mm
Center Bore Diameter (mm) 78.7mm
Bolt Circle Diameter (mm) 139.7 mm
Overall Height 2.6 IN
Nominal Thickness 32.65 MM
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. &#9888;<b> WARNING:</b> Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Material Cast Iron
Features & Benefits - Bullet 2 Economical value with dependable quality
Features & Benefits - Bullet 3 For General Motors vehicles as well as most makes and models
Construction Full Cast
Slotted No
Rust Resistant Coating No
Programming Required No
Disc Finish Non-Directional
Hat Finish Plain
Grade Type Regular
Surface Type Smooth
Features & Benefits - Bullet 1 Some ACDelco Silver parts may have formerly appeared as ACDelco Advantage
Solid Or Vented Type Rotor Vented
Mounting Bolt Hole Diameter 15.35 MM
Mounting Bolt Hole Quantity 6
Mounting Bolt Hole Diameter 0.605 IN
Discard Thickness 30.85 MM
Outside Diameter 294.9 MM
Directional or Non-Directional Brake Surface Non-Directional
Stud/Lug Hole Quantity 6
Conventional Or Drum-In-Hat Type Rotor Conventional
Overall Height 66.05 MM
ABS Tone Ring Included No
Center Hole Diameter 3.098 IN
Center Hole Diameter 78.7 MM

Additional Information

Warranty Special 12 Months/Unlimited Miles Limited Warranty (Parts Only). Please see ACDelco.com for more details|12 Months/20,000 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 00707773625361

Fits Vehicles

  • GMC K1500 Suburban (1992-1999)
  • GMC K1500 (1988-1999)
  • GMC K2500 (1988-1998)
  • Cadillac Escalade (1999-2000)
  • Chevrolet K1500 Suburban (1992-1999)
  • Chevrolet K1500 (1988-1999)
  • Chevrolet K2500 (1988-1998)
  • Chevrolet Blazer (1992-1994)
  • Chevrolet Tahoe (1995-2000)
  • GMC Yukon (1992-2000)

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.

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