1999 Dodge/Ram Truck Dakota 2WD 3.9L SFI 6cyl

The Spark Plug Tightening Torque

Spark plug information torque value guide (Ft/Lbs) <<<<<<< attention >>>>>>> these installation torque values are for new sparkplugs, all contact surfaces should be clean and dry.------------------------------------------------------ plug type cast-iron head* aluminum head*10mm gasketed 8 to 12 Ft/Lbs 8 to 12 Ft/Lbs12mm gasketed 10 to 18 Ft/Lbs 10 to 18 Ft/Lbs14mm gasketed 26 to 30 Ft/Lbs 18 to 28 Ft/Lbs18mm gasketed 32 to 38 Ft/Lbs 28 to 34 Ft/Lbs14mm tapered seat 7 to 15 Ft/Lbs 7 to 15 Ft/Lbs18mm tapered seat 15 to 20 Ft/Lbs 15 to 20 Ft/Lbs------------------------------------------------------ *Reduce torque values by approximately 1/3 if threadlubricant is being used. <<<<<<< special note >>>>>>>this guide is for reference information purposes only.Torque values are subject to change without priornotification. AutoZone is not responsible for the useor misuse of this information, or the results thereof.

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