Toyota OEM Specification Spark Plug K20HR-U11 90919-01235 / 90919-T1004

Replacement part K20HR-U11 matches Toyota original specs in material and process; electrode made from ordinary nickel alloy; durability not as high as iridium/platinum but stable 30,000–40,000 km under standard conditions. OEM 90919-01235 and 90919-T1004; fits Toyota models from 2000 onward (e.g., Corolla, Vios) with 1.5–1.8 L engines. Function: ignite fuel-air mixture, ensure smooth idle and responsive acceleration. Installation medium; remove ignition coil and torque to standard; use torque wrench to avoid over-tightening and thread damage.