GM Genuine Parts Piston
OE
Pack of 1

GM Genuine Parts Piston

GM Part #12674548

MSRP$74.41*

GM Genuine Parts Engine Pistons are designed, engineered, and tested to rigorous standards, and are backed by General Motors.

  • 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

Pack of 1

About this product

GM Genuine Parts Engine Pistons are designed, engineered, and tested to rigorous standards, and are backed by General Motors. 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).

Warning WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

  • 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

Top Compression Ring Thickness0.0472 in / 1.2 mm
ClassificationOE
Piston Pin Outside Diameter0.748 in / 19 mm
Second Compression Ring Thickness0.0472 in / 1.2 mm
Piston Pin Length1.8543 in / 47.1 mm
Oil Ring Thickness0.0157 in / 0.4 mm
Skirt Length1.165 in / 29.59 mm
Piston Inside Diameter2.7677 in / 70.3 mm
Piston Outside Diameter2.9118 in / 73.96 mm
Oil Spacer Ring Thickness0.0681 in / 1.73 mm
Piston Pin Inside Diameter0.3996 in / 10.15 mm
Piston MaterialAluminum Alloy
Piston Pin Incorporated BearingsNo
Skirt TypePartial
Piston Pin MaterialSteel
Piston Head TypeDome

24 Months/Unlimited Miles Limited Warranty for Parts (plus Labor if installed by a GM dealer)

Please visit our warranty page on Gmparts.com for full warranty details.

ModelBody StyleTrimYear(s)
Equinox2018, 2019, 2020, 2021, 2022
MalibuL, LS, LT, RS2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025