2026-09-15
Lexus NX 200t/300/300h Water Pump Replacement Malaysia
NX 200t/300 water pump is chain-driven (8AR-FTS) — replace when coolant leaks or bearing noise is detected. NX 300h has both a mechanical and electric water pump (for the inverter circuit). Mechanical pump:; electric pump if failed. Always refill with Toyota SLLC.
Lexus NX Water Pump
- NX 200t/300 (8AR-FTS): serpentine belt-driven water pump — inspect for weeping at 80,000 km; turbo engine runs hotter, water pump works harder
- NX 300h: dual cooling circuits — engine cooling + hybrid/inverter cooling; each circuit has its own pump; inspect both at 100,000 km
- Water pump housing: 8AR-FTS has plastic water pump housing — inspect for hairline cracks at 80,000 km; plastic degrades in Malaysia heat over time
- Overheating prevention: water pump, thermostat, coolant all linked — if NX overheats, diagnose all three before replacing any single component