RepairPal Certified shops can diagnose and repair your 2006 Mitsubishi Endeavor. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.
https://www.amazon.com/Ignition-Mitsubishi-Endeavor-Galant-fitment/dp/B01IGB4BFY
IF engine oil is encountered in spark plug tubes - replacement of valve cover gaskets and tube seals will also be required - the gasket SET includes the seals.
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https://www.amazon.com/Ignition-Mitsubishi-Endeavor-Galant-fitment/dp/B01IGB4BFY IF engine oil is encountered in spark plug tubes - replacement of valve cover gaskets and tube seals will also be required - the gasket SET includes the seals. (( https://repairpal.com/repair-shops ))