Chevy Colorado Spark Plug Torque Specs by Engine

Always verify with your owner's manual or service manual for your exact model year.

EngineYearsTorqueNotes
2.5L I4 (LKW)2015–202215 ft-lb (20 Nm)Aluminum head; use torque wrench
2.8L Duramax Diesel (LWN)2016–202233 ft-lb (45 Nm)Glow plugs different; this is for glow plug? Wait—diesel has glow plugs, not spark plugs. Correction: 2.8L diesel uses glow plugs, not spark plugs. Torque for glow plugs: 18 ft-lb (25 Nm). Original source likely mislabeled.
3.5L I5 (L52)2004–200631 ft-lb (42 Nm)Iron head; anti-seize on threads
3.6L V6 (LGZ/LFX)2007–202215 ft-lb (20 Nm)Aluminum head; critical not to over-torque
5.3L V8 (LH8/LH9)2009–201215 ft-lb (20 Nm)Aluminum head

Critical Tips

  • Use nickel anti-seize sparingly on threads (not electrodes)
  • Gap plugs per spec (usually pre-gapped; verify)
  • Torque cold engine
  • Replace coil boots if cracked
  • 2.5L/3.6L aluminum heads: 15 ft-lb is low—do not guess

Diesel note: 2.8L has glow plugs, not spark plugs. Confirm component.

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