Having problems with your 2004 Toyota 4Runner ?
What is the brand/model of the stock spark plug for an 04 V6 4 runner? Heat range? Gap?
Toyota generally uses ND (Nippondenso) paltinum spark plugs. If you want to waste $20.00 each at the Toyota dealer then so be it, I put NGK's or Bosch plugs in my Toyota's, Honda's they're generally alot cheaper and just as durable may'be better.
Repair Help & Product Troubleshooting for 2004 Toyota 4Runner
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