GM Genuine Parts Engine Piston
OE
Pack of 1

GM Genuine Parts Engine Piston

GM Part #55571105

MSRP$114.60*

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 Diameter0.413 in / 10.5 mm
Piston Pin Outside Diameter0.709 in / 18 mm
Second Compression Ring Thickness0.047 in / 1.19 mm
Top Compression Ring Thickness0.047 in / 1.2 mm
Oil Ring Thickness0.079 in / 2.01 mm
ClassificationOE
Piston Inside Diameter2.728 in / 69.3 mm
Ring Outside Diameter2.878 in / 73.09 mm
Skirt Length0.14 in / 3.55 mm
Piston Pin Length2.087 in / 53 mm
Ring Inside Diameter2.693 in / 68.4 mm
Piston Outside Diameter2.89 in / 73.4 mm
Oil Spacer Ring Thickness0.036 in / 0.91 mm
Piston Head TypeDish
Piston Pin MaterialSteel
OversizedYes
Piston MaterialAluminum
Piston Pin Incorporated BearingsNo
Skirt TypePartial
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)
ELRBase2014, 2015, 2016