2026-07-21 · 4 min read
Toyota Harrier Spark Plug Replacement Malaysia
M20A-FKS iridium plugs last 80,000 km. GDI combustion quality depends heavily on plug condition — don't delay replacement.
Harrier M20A-FKS (2.0L petrol) and A25A-FXS (2.5L hybrid) both use iridium long-life plugs — Toyota specifies 80,000 km intervals. Both are direct injection engines, so carbon buildup on plugs is more likely than on port-injection engines.
Spark Plug Replacement
- OEM NGK iridium or Denso iridium (set of 4): RM 280–400
- Labour: RM 80–150 — relatively easy access on M20A-FKS; hybrid A25A-FXS is more involved