
OE
Pack of 1
OE
Pack of 1
GM Genuine Parts Piston
GM Part #12627170
ACDelco Part #12627170
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: 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 Spacer Ring Thickness0.037 in / 0.93 mm
Oil Ring Thickness0.097 in / 2.46 mm
ClassificationOE
Piston Pin Outside Diameter0.827 in / 21 mm
Second Compression Ring Thickness0.058 in / 1.48 mm
Ring Inside Diameter3.244 in / 82.4 mm
Skirt Length1.3508 in / 34.31 mm
Ring Outside Diameter3.463 in / 87.95 mm
Piston Inside Diameter3.3465 in / 85 mm
Piston Outside Diameter3.4639 in / 87.984 mm
Cylinder Bore Diameter3.4646 in / 88 mm
Ring MaterialSteel
Piston MaterialAluminum Alloy
Piston Pin Incorporated BearingsNo
Skirt TypePartial
Piston Pin MaterialSteel
Piston Head TypeDome
OversizedNo
Assembly Lubricant IncludedNo
Top Compression Ring Thickness0.046 in / 1.18 mm
Oil Ring Thickness0.097 in / 2.46 mm
Piston Pin Outside Diameter0.827 in / 21 mm
Ring Inside Diameter3.244 in / 82.4 mm
Ring Outside Diameter3.463 in / 87.95 mm
Piston Outside Diameter3.4639 in / 87.984 mm
Ring MaterialSteel
Piston Pin Incorporated BearingsNo
Piston Pin MaterialSteel
OversizedNo
Oil Spacer Ring Thickness0.037 in / 0.93 mm
ClassificationOE
Second Compression Ring Thickness0.058 in / 1.48 mm
Skirt Length1.3508 in / 34.31 mm
Piston Inside Diameter3.3465 in / 85 mm
Cylinder Bore Diameter3.4646 in / 88 mm
Piston MaterialAluminum Alloy
Skirt TypePartial
Piston Head TypeDome
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.
