GM Genuine Parts Engine Piston
OE
Pack of 1

GM Genuine Parts Engine Piston

GM Part #55574797

ACDelco Part #55574797

MSRP$111.95*

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

Product Specifications

Ring MaterialSteel
Piston Pin Inside Diameter0.512 in / 13 mm
Oil Ring Thickness0.079 in / 2 mm
Second Compression Ring Thickness0.059 in / 1.51 mm
ClassificationOE
Top Compression Ring Thickness0.06 in / 1.52 mm
Skirt Length0.239 in / 6.07 mm
Piston Pin Outside Diameter1.18 in / 29.98 mm
Piston Pin Length2.639 in / 67.02 mm
Piston Inside Diameter2.992 in / 76 mm
Ring Inside Diameter2.996 in / 76.1 mm
Piston Outside Diameter3.228 in / 82 mm
Ring Outside Diameter3.236 in / 82.19 mm
Piston Head TypeDish
Assembly Lubricant IncludedNo
Piston Pin MaterialSteel
Piston MaterialAluminum
Piston Pin Incorporated BearingsNo
Skirt TypePartial

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)
CruzeDiesel2014, 2015