2023+ GR Corolla Ignition and Starter Parts
Shop for 2023+ GR Corolla spark plugs, ignition kits, ignition coils, starters and install parts.
STM carries the best names in aftermarket upgrades and genuine OEM Toyota factory replacement parts. If you don't see what you need online yet, just give us a call!
The factory GR Corolla iridium spark plugs are Toyota 9091901302 manufactured by NGK under part number DILKAR8U7G with a stock heat range of 8. The stock gap is 0.027" (0.7 mm) and the thread is 14mm.
Toyota recommends changing the spark plugs in your stock GR Corolla every 60,000 miles. Of course, if your GR is modified, that time interval will be shortened by how hard you are driving and the type of gas or E85 you're running.
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