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GM Genuine Parts M9x1.25x121 Engine Cylinder Head Bolt
OE

GM Genuine Parts M9x1.25x121 Engine Cylinder Head Bolt

GM Part #55566811

ACDelco Part #55566811

MSRP$7.83*

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

  • Fastens vehicle's components together
  • Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
  • GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle

About this product

GM Genuine Parts Bolts are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These bolts fasten vehicle components together. GM Genuine Parts are the true OE parts installed during the production 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

  • Fastens vehicle's components together
  • Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
  • GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
  • Original equipment parts are designed to work with your GM vehicle safety systems -- aftermarket replacement parts may not meet the same OE safety regulations, depending on the part type
  • GM regularly updates production and service part designs to integrate new materials and technologies

ClassificationOE
Thread Length4.468 in / 113.5 mm
ColorBlack
MaterialSteel
Head Tool Size0.438

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)
EncoreBase2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021