GM GENUINE
More Information for GM GENUINE 12658181
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GM GENUINE 12658181  
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GM GENUINE 12658181 Specifications
Assembly Lubricant IncludedNo
OversizedYes
Piston Head TypeDome
Piston MaterialAluminum
Piston Outside Diameter (IN)3.9411
Piston Outside Diameter (MM)100.103
Piston Pin Incorporated BearingsNo
Piston Pin Inside Diameter (in)0.5512
Piston Pin Inside Diameter (mm)14
Piston Pin Length (in)2.537
Piston Pin Length (mm)64.44
Piston Pin MaterialSteel
Piston Pin Outside Diameter (In)0.9447
Piston Pin Outside Diameter (mm)23.995
Piston Rings IncludedNo
Ring MaterialSteel
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

Warranty Information:
24 Month / Unlimited Mile Warranty