
OE
Pack of 1
OE
Pack of 1
GM Genuine Parts Engine Piston
GM Part #89018108
ACDelco Part #89018108
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
OversizedNo
Assembly Lubricant IncludedNo
Piston Pin Incorporated BearingsNo
Piston MaterialAluminum
Piston Pin MaterialSteel
Piston Head TypeDome
Skirt TypePartial
ClassificationOE
Second Compression Ring Thickness0.059 in / 1.5 mm
Top Compression Ring Thickness0.047 in / 1.2 mm
Piston Pin Inside Diameter0.512 in / 13 mm
Piston Pin Outside Diameter0.906 in / 23 mm
Oil Ring Thickness0.079 in / 2 mm
Piston Pin Length2.148 in / 54.55 mm
Ring Inside Diameter3.13 in / 79.5 mm
Piston Inside Diameter3.228 in / 82 mm
Ring Outside Diameter3.386 in / 86 mm
Piston Outside Diameter3.583 in / 91 mm
Skirt Length0.256 in / 6.5 mm
Oil Spacer Ring Thickness0.02 in / 0.51 mm
Ring MaterialSteel
OversizedNo
Piston Pin Incorporated BearingsNo
Piston Pin MaterialSteel
Skirt TypePartial
Second Compression Ring Thickness0.059 in / 1.5 mm
Piston Pin Inside Diameter0.512 in / 13 mm
Oil Ring Thickness0.079 in / 2 mm
Ring Inside Diameter3.13 in / 79.5 mm
Ring Outside Diameter3.386 in / 86 mm
Skirt Length0.256 in / 6.5 mm
Ring MaterialSteel
Assembly Lubricant IncludedNo
Piston MaterialAluminum
Piston Head TypeDome
ClassificationOE
Top Compression Ring Thickness0.047 in / 1.2 mm
Piston Pin Outside Diameter0.906 in / 23 mm
Piston Pin Length2.148 in / 54.55 mm
Piston Inside Diameter3.228 in / 82 mm
Piston Outside Diameter3.583 in / 91 mm
Oil Spacer Ring Thickness0.02 in / 0.51 mm
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.