What's the cost for a Lexus is250 spark plug replacement?

The average life of Lexus IS250 spark plugs may be between 30,000-45,000 miles. Replacement costs can vary depending on where the work is done and the quality of parts used. In general, dealerships will charge between $550-$650 in parts and labor. Details like the use of OEM, aftermarket or platinum tipped parts will also dictate price differences. Usually engine air filters are replaced at the same time, if equipped. Opting for doing the work Yourself requires the use of A5/8" spark plug socket equipped with a magnet. To replace, use a ratchet to remove the previously installed plugs. Always confirm new and old threads are the same length, to prevent collision with the pistons and potential engine damage.