GM Genuine Parts Piston
OE
Pack of 1

GM Genuine Parts Piston

GM Part #55510938

ACDelco Part #55510938

MSRP$105.22*

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

Piston Head TypeBowl
Skirt TypePartial
Oil Ring Thickness0.08in
Piston Pin Length2.44in
Skirt Length2.84in
Ring Inside Diameter2.98in
Piston Inside Diameter2.99in
Piston Outside Diameter3.31in
Ring Outside Diameter3.31in
Second Compression Ring Thickness0.06in
Top Compression Ring Thickness0.06in
Piston Pin Outside Diameter1.18in
ClassificationOE
Piston Pin Inside Diameter0.63in

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)
Escalade2021, 2022, 2023, 2024
Escalade ESV2021, 2022, 2023, 2024