2026-07-21 · 4 min read
Toyota Sienta Spark Plug Malaysia
Toyota Sienta Spark Plug guide and repair information for Malaysia owners.

Sienta 1NZ-FE (petrol) and 1NZ-FXE (hybrid) both use iridium spark plugs — replace every 80,000 km. Both are port-injected engines, so carbon fouling on plugs is minimal compared to DI engines.
Spark Plug Details
- NGK or Denso iridium plugs (set of 4)
- Labour — straightforward on both 1NZ variants
