GM Genuine Parts Engine Piston
OE
Pack of 1

GM Genuine Parts Engine Piston

GM Part #12657184

MSRP$4,383.83*

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 Thickness0.046 in / 1.18 mm
Oil Ring Thickness0.097 in / 2.46 mm
ClassificationOE
Ring Inside Diameter3.244 in / 82.4 mm
Second Compression Ring Thickness0.058 in / 1.48 mm
Oil Spacer Ring Thickness0.087 in / 2.2 mm
Skirt Length0.217 in / 5.52 mm
Piston Pin Inside Diameter0.453 in / 11.5 mm
Piston Pin Outside Diameter0.803 in / 20.4 mm
Piston Pin Length2.159 in / 54.84 mm
Piston Inside Diameter3.327 in / 84.5 mm
Piston Outside Diameter3.457 in / 87.8 mm
Ring Outside Diameter3.463 in / 87.95 mm
Ring MaterialSteel
Piston Head TypeDish
OversizedNo
Piston Pin Incorporated BearingsNo
Skirt TypePartial
Piston Pin MaterialSteel
Piston MaterialAluminum
Assembly Lubricant IncludedNo

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)
Malibu2008, 2009, 2010, 2011, 2012