GM Genuine parts may ship in a GM Genuine or AcDelco box. The product will fit and function the same.
GM GENUINE 8642178 Specifications
Color
Tan
Inside Diameter (IN)
0.73
Inside Diameter (MM)
18.5
Material
Dupont Hytrel 5555 HS
Outside Diameter (IN)
1.17
Outside Diameter (MM)
29.7
Rim Shape
Flat
Seal Type
Gasket
Thickness (IN)
0.39
Thickness (MM)
9.8
Stay with the parts brand your General Motors vehicle came with and get the quality you know and trust with GM Genuine parts. GM Genuine parts give you the peace of mind that the fit, form, and function is up to the high standards and specifications of General Motors.Features:
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
