GM Genuine Parts Disc Brake Rotors are designed, engineered, and tested to rigorous standards, and are backed by General Motors. Disc brake rotors are mounted to the wheel hub where the calipers press your vehicle's brake pads against the disc surface to help slow down the vehicle. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).

• Most GM OE brake rotors sold in the U.S are Ferritic Nitro-Carburized, or FNC rotor
• These rotors typically last two times longer, compared to non-FNC rotors, due to improved pad wear behavior
• OE brake components are specifically designed to work with your GM vehicle safety systems
• Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
• GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
• GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
• GM regularly updates production and service part designs to integrate new materials and technologies

ABS Tone Ring Included:	No
Bolt Circle Diameter (in):	4.7
Bolt Circle Diameter (mm):	119.3
Bolt Hole Quantity:	5
Construction:	Full Cast
Discard Thickness:	1.181
Discard Thickness:	29.997
Grade Type:	Regular
Height (in):	1.8
Height (mm):	45.7
Length (in):	13.1
Lug Quantity:	5
Material:	Cast Iron
Mounting Bolt Hole Circle Diameter:	120.65
Mounting Bolt Hole Circle Diameter:	4.75
Nominal Thickness:	1.26
Nominal Thickness:	32.004
Outside Diameter:	12.7
Outside Diameter:	322.5
Programming Required:	No
Rust Resistant Coating:	Yes
Slotted:	No
Solid Or Vented Type Rotor:	Vented
Surface Type:	Smooth
Weight (lb):	20
Width (in):	12.5

• 2004-2009 Cadillac XLR | Position: Front
• 2005-2013 Chevrolet Corvette | Position: Front