W20EPR-U11 3049 Spark Plug, Widely Compatible with Toyota Prius and Other Models

W20EPR-U11 3049 spark plug is mounted in the engine cylinder head to ignite the mixture; compatible with 2000s Toyota Prius, Audi, Mercedes-Benz, Mitsubishi, Subaru, Honda, and others. Installation difficulty medium; about 1–2 hours; monitor torque and gap adjustments. If idle shakes, acceleration weak, fuel consumption rising, or start difficulty occurs, indicate electrode wear or heavy carbon; replace to restore performance.