ACDelco GM Original Equipment Disc Brake Rotors are metal discs mounted to the wheel hub where the caliper can press the brake pads against the disc surfaces to slow the vehicle, and are GM-recommended replacements for your vehicle's original components. These disc brake rotors have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

• Inspected for balance, resulting in smooth brake operation and noise reduction
• GM-recommended replacement part for your GM vehicle's original factory component
• Offering the quality, reliability, and durability of GM OE
• Manufactured to GM OE specification for fit, form, and function

ABS Tone Ring Included:	No
Bolt Circle Diameter (in):	5.5
Bolt Circle Diameter (mm):	139.7
Bolt Hole Quantity:	6
Center Hole Diameter:	102
Center Hole Diameter:	4
Construction:	Full Cast
Disc Finish:	Turned
Discard Thickness:	1.043
Discard Thickness:	26.5
Grade Type:	Regular
Hat Finish:	Coated
Height (in):	2.7
Height (mm):	69.8
Length (in):	13.2
Lug Quantity:	6
Material:	Cast Iron
Nominal Thickness:	1.102
Nominal Thickness:	28
Outside Diameter:	12.4
Outside Diameter:	315
Overall Rotor Diameter (mm):	315 mm
Pad Contact Surface Width:	2.2
Pad Contact Surface Width:	56
Programming Required:	No
Rust Resistant Coating:	Yes
Slotted:	No
Solid Or Vented Type Rotor:	Vented
Surface Type:	Smooth
Weight (lb):	21.39
Width (in):	12.5

• 2006-2010 Hummer H3 | Position: Front
• 2009-2010 Hummer H3T | Position: Front