2026-07-21 · 4 min read
Toyota Yaris Spark Plug Guide
Yaris 2NR-FKE uses 4 iridium spark plugs (NGK ILFR5B-11), rated 80,000 km. In Malaysia replace at 60,000–70,000 km for optimal performance.
Yaris Spark Plugs — Iridium at 80,000 km
Yaris 2NR-FKE petrol: 4 spark plugs, copper type at 40,000 km or iridium at 80,000 km. The 2NR-FKE is a responsive engine — worn spark plugs show up as flat spots during acceleration. The Yaris Hybrid (2ZR-FXE): 4 spark plugs at same intervals but the engine cycles on and off more frequently, putting more ignition cycles per km than a conventional petrol engine. Iridium is strongly recommended for the hybrid. Cost: 4 pcs iridium RM 140–240.
Spark Plug Selection — Toyota Malaysia
Toyota petrol engines use NGK or Denso iridium spark plugs rated for 60,000 km — copper plugs gap faster and are not recommended for modern VVT-i engines. For CVT models, misfires under light throttle can cause CVT surging — often a spark plug issue on high-mileage cars. Budget RM 25–50 per plug (4 for inline-4, 6 for V6 Alphard/Vellfire/Harrier). Always gap-check new plugs before installation. Iridium plugs should not be gapped with feeler gauges — use a coin-style gap tool.