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Product Information

Product Details
Part No. 177-1039
Warranty Details (2 YR REPLACEMENT IF DEFECTIVE)
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).

Product Features:
  • 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
Specifications
ABS Tone Ring Included:
No

Bearings Included:
No

Bolt Circle Diameter:
6.5 in

Bolt Hole Quantity:
8

Center Hole Diameter:
4.5 in

Construction:
Full Cast

Conventional Or Drum-In-Hat Type Rotor:
Conventional

Directional or Non-Directional Brake Surface:
Non-Directional

Disc Finish:
Ground

Discard Thickness:
1.437 in

Grade Type:
Regular

Hat Finish:
Painted

Height:
3.5 in

Inside Diameter:
201.3 mm

Length:
12.8 in

Lug Quantity:
8

Material:
Cast Iron

Mounting Bolt Hole Circle Diameter:
165.41 in

Nominal Thickness:
1.5 in

Outside Diameter:
325 mm

Overall Height:
3.52 in

Overall Rotor Diameter:
325 mm

Pad Contact Surface Width:
1.9 in

Programming Required:
No

Rust Resistant Coating:
Yes

Slotted:
No

Solid Or Vented Type Rotor:
Vented

Stud/Lug Hole Circle Diameter:
165.41 mm

Stud/Lug Hole Diameter:
16.25 mm

Stud/Lug Hole Quantity:
8

Surface Type:
Smooth

Weight:
26.91 lb

Width:
12.8 in
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