What do spark plugs for a Lincoln Navigator cost?

The cost of spark plugs for a Lincoln Navigator typically ranges from $10 to $30 each, depending on the brand and type (standard or iridium). Considering that a V8 engine usually requires eight spark plugs, the total cost for parts can be between $80 and $240. Labor costs for installation can add another $100 to $200, depending on the service provider. Always check with local auto parts stores or mechanics for specific pricing based on your vehicle's model year and engine type.