SK20HR11 Iridium Spark Plug Lexus LS/LX/Toyota Hiace/Prado 90919-01191

SK20HR11 iridium spark plugs are precision-machined with ordinary iridium electrodes, durable with a service life of about 60,000–80,000 km; fits post-2000 Lexus LS/LX, Toyota Hiace, and Prado etc. They ignite the air–fuel mixture to ensure stable engine output, directly affecting fuel economy and power response. Installation difficulty is moderate; remove ignition coil and old plug, tighten to standard torque with a torque wrench. If idle shakes, acceleration is weak, or fuel consumption rises, replace.