Parts for your 1998 Toyota Crown-Spark plugs

1998 Toyota Crown spark plugs — what they do and when to replace

Based on factory Toyota engine manuals for the 1G‑FE, 1JZ‑GE and 2JZ‑GE, the Toyota Crown S150 New Car Features guide, and NGK/Denso application catalogues, spark plugs are used on the 1998 Toyota Crown petrol variants. Only the diesel Crown (e.g., LS151 with the 2L‑TE) uses glow plugs instead, so spark plugs wouldn’t apply to those diesel models.

For petrol 1998 Crowns, spark plugs are the tiny but crucial parts that ignite the air–fuel mix in each cylinder. That reliable spark is what gives smooth starts, steady idle and decent fuel economy. On many late‑’90s Crowns the factory fit is long‑life platinum or iridium plugs, and depending on engine code they’ll either sit under coil‑on‑plug units or connect via traditional leads. The role’s the same: clean, consistent spark at the right time to keep the big Toyota six humming.

As part of regular servicing, plugs deserve a look every 20,000–30,000 kilometres. Even long‑life types eventually wear