GM Genuine Parts Piston Kit with Pin, Rings, and Retainers (Left)
OE
Pack of 1

GM Genuine Parts Piston Kit with Pin, Rings, and Retainers (Left)

GM Part #12688011

ACDelco Part #12688011

MSRP$150.46*

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

  • Services the engine pistons which compress the fuel and air mixture in the cylinder to help produce combustion
  • 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

Pack of 1

About this product

GM Genuine Parts Engine Piston Kits are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These kits include components to service your vehicle's engine pistons, which compress the fuel and air mixture in the cylinder to help produce combustion. 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

  • Services the engine pistons which compress the fuel and air mixture in the cylinder to help produce combustion
  • 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 Pin Outside Diameter0.91 in / 23 mm
Top Compression Ring Thickness0.05 in / 1.18 mm
ClassificationOE
Second Compression Ring Thickness0.04 in / 1.18 mm
Oil Ring Thickness0.02 in / 0.42 mm
Oil Spacer Ring Thickness0.03 in / 0.8 mm
Piston Pin Length2.2 in / 55.93 mm
Ring Inside Diameter3.14 in / 79.78 mm
Piston Inside Diameter3.19 in / 81 mm
Piston Outside Diameter3.39 in / 86 mm
Piston Pin Inside Diameter0.49 in / 12.5 mm
Ring Outside Diameter3.38 in / 85.96 mm
Piston Pin Incorporated BearingsNo
Piston Pin MaterialSteel
Piston Head TypeDish
Assembly Lubricant IncludedNo
Piston Rings IncludedYes
OversizedNo

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)
CT5Premium Luxury, V2020, 2021, 2022, 2023, 2024, 2025, 2026
CT6Luxury, Platinum, Premium Luxury, Sport2016, 2017, 2018, 2019