Subaru Legacy Outback Forester Spark Plug 22401-AA750 SILFR6C11 Durable Performance

Is your Subaru Legacy, Outback or Forester exhibiting rough idle, sluggish acceleration, noticeably higher fuel consumption, or cold-start trouble? These symptoms typically indicate spark plug electrode gap is too wide or heavy carbon buildup, causing insufficient ignition energy and incomplete combustion. Under normal operation, the spark plug must fire at the correct time to ignite the mixture for smooth power output and good fuel economy. This product OEM number 22401-AA750 SILFR6C11 fits Subaru Legacy, Outback, Forester and other models from 2000 onward. Use a torque wrench to tighten to factory torque to avoid damaging the cylinder head threads or causing leaks from over-tightening.