ACDelco Gold (Professional) Non-Coated Disc Brake Rotor and Hub Assemblies are a high quality alternative to Original Equipment (OE) parts. These rotors are mounted to the wheel hub where the calipers can press the brake pads against the brake surface to help stop the vehicle. ACDelco Gold (Professional) parts are manufactured to meet your expectations for fit, form, and function, making them a smart choice for General Motors vehicles, as well as most makes and models, including special applications. These high-quality parts are backed by General Motors. Some ACDelco Gold parts may have formerly appeared as ACDelco Professional.

• Cross drilled for quick brake response and heat dissipation
• Black coating on hat and vanes
• Quality validated for proper metallurgy and correct brake plate thickness
• Tighter tolerances similar to GM OE specifications
• Some ACDelco Gold parts may have formerly appeared as ACDelco Professional
• Premium aftermarket replacement part
• Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models

ABS Tone Ring Included:	No
Bolt Circle Diameter (in):	4.6
Bolt Circle Diameter (mm):	118
Bolt Hole Quantity:	5
Center Bore Diameter (in):	2.8in
Center Bore Diameter (mm):	70.7mm
Center Hole Diameter:	2.78
Center Hole Diameter:	70.6
Construction:	Full Cast
Conventional Or Drum-In-Hat Type Rotor:	Drum-In-Hat
Directional or Non-Directional Brake Surface:	No
Disc Finish:	Ground
Discard Thickness:	0.354
Discard Thickness:	9
Grade Type:	Regular
Hat Finish:	Turned
Height (in):	2
Height (mm):	50.3
Length (in):	11.3
Material:	Cast Iron
Mounting Bolt Hole Circle Diameter:	118
Mounting Bolt Hole Circle Diameter:	4.646
Mounting Bolt Hole Diameter:	0.636
Mounting Bolt Hole Diameter:	16.15
Mounting Bolt Hole Quantity:	5
Nominal Thickness:	0.435
Nominal Thickness:	11.05
Outside Diameter:	10.94
Outside Diameter:	277.9
Overall Height:	1.98
Overall Height:	50.3
Overall Rotor Diameter (mm):	277.88mm
Pad Contact Surface Width:	1.6
Pad Contact Surface Width:	41.9
Programming Required:	No
Rust Resistant Coating:	Yes
Slotted:	No
Solid Or Vented Type Rotor:	Solid
Stud/Lug Hole Quantity:	5
Surface Type:	Smooth
Weight (lb):	12
Width (in):	12.3

• 1997-2005 Buick Century | Position: Rear
• 1997-2004 Buick Regal | Position: Rear
• 1997-2003 Pontiac Grand Prix | Position: Rear
• 1997-1999 Pontiac Trans Sport | Position: Rear
• 1998-2005 Chevrolet Venture | Position: Rear
• 1998-2002 Oldsmobile Intrigue | Position: Rear
• 1999-2004 Oldsmobile Alero | Position: Rear
• 1999-2005 Pontiac Grand Am | Position: Rear
• 1999-2001 Pontiac Montana | Position: Rear
• 2000-2005 Chevrolet Impala | Position: Rear
• 2000-2005 Chevrolet Monte Carlo | Position: Rear