ACDELCO part description

ACDELCO 18A409SD -

Product Attributes

Nominal Thickness 24.003mm (0.945 in.)
Center Hole Diameter 72.14mm (2.84 in.)
BOLT CIRCLE 114.3mm (4.5 in.)
Driving Style Daily Driver, Hauling & Towing, Performance / Racing
Lug Holes Quantity 5
Lug Holes Quantity 5
Minimum Thickness 22.708mm (0.894 in.)
Minimum Thickness 22.708mm (0.894 in.)
Quantity 1 Per Pack
Quantity 1 Per Pack
Rotor Construction 1-Piece
Rotor Construction 1-Piece
Rotor Design Rotors Only
Rotor Design Rotors Only
Rotor Diameter 284.5mm (11.2 in.)
Rotor Diameter 284.5mm (11.2 in.)
Rotor Finish Turned
Rotor Finish Turned
Rotor Height 81.28mm (3.2 in.)
Rotor Material Cast Iron
Rotor Style Slotted
Rotor Style Slotted
Rotor type Vented
Rotor type Vented

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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