2026-09-15
Lexus ES 250/300h Spark Plug Replacement – 4 Iridium Plugs Malaysia
Both the ES 250 (2AR-FE) and ES 300h (2AR-FXE) use 4 iridium spark plugs (NGK or Denso), replaced every 100,000 km. The 4-cylinder inline engine makes plug access straightforward — a competent workshop completes this in under an hour. No intake manifold removal required unlike the IS 250 V6.
ES Spark Plug Specs
- ES 300h 2AR-FXE 2.5L hybrid: NGK ILFR5B iridium — 4 plugs — every 60,000 km
- ES 250 A25A-FKS 2.5L: NGK DILKAR7C11H iridium — 4 plugs — every 60,000 km
- Do not use standard platinum or copper plugs — modern engines require iridium for correct combustion