Spark plug OEM Toyota or BERU

I use only NGK or Beru spark plugs.

I bought six OEM spark plugs at the Toyota dealership parts counter and it was $12!

OEM Toyota plugs will probably last forever but it depends if your gas mileage is like 5 to 10 miles less that's the only way I would change the back plugs.

Spark plugs 100k miles - $25

use beru plugs rather than Bosch, a lot of Bosch plugs sold for this application has the wrong heat range which can cause misfires.

I have an 02 4runner with 289,500 miles. I've had it for the last 106,000. Replaced the timing belt/ water pump twice. Replaced spark plugs twice. New brakes a few times.

Unfortunately no--replace them. The electrodes wear down and become less efficient. The good news is that iridium plugs have a tremendous lifespan. You're supposed to change them every 100k miles/167k km.

Bought a 03 100 series with 241,000 only issue was the number 7 spark plug blew out, had to re-tap it and install a aluminum sleeve, and replace the coil

Had these Beru plugs put in last year. Are they the kind that’s at greater risk for damaging the engine?

I was given an "offer" to have my spark plugs changed for $368!