HOP Iridium Spark Plug ILKAR7B11 for Toyota Corolla 1.6/1.8 Replaces BKR6EIX-11

Toyota Corola 1.6L and 1.8L engines can choose HOP iridium spark plug ILKAR7B11 (OEM BKR6EIX-11). Installed in the spark plug bore in the cylinder head to ignite the air-fuel mixture and drive the piston. Replacement difficulty moderate; labor about 30-60 minutes; use a torque wrench to ensure proper tightness. If idle jitter, weak acceleration, higher fuel consumption, or starting difficulties occur, spark plug electrode wear or heavy carbon buildup is indicated and replacement is required to restore ignition efficiency.