Parts for your 2023 Toyota Camry-Spark plugs

2023 Toyota Camry spark plugs: purpose, care, and when to replace

Yes, spark plugs are absolutely used on the 2023 Toyota Camry. Technical sources including the Toyota Owner’s Manual and Warranty & Service booklet (AUS/NZ), plus Toyota Repair Manual/New Car Features documentation for the A25A-FKS/FXS (2.5‑litre petrol and hybrid) and 2GR‑FKS (3.5‑litre V6) confirm these are spark‑ignition petrol engines with coil‑on‑plug ignition and long‑life iridium plugs. Iridium construction and precise heat ranges are also supported by supplier guidance from Denso/NGK for these Toyota engines.

On the 2023 Camry, the spark plugs light the air–fuel mix at exactly the right moment, keeping cold starts crisp, fuel economy tidy, and emissions in check. With Toyota’s D‑4S system and coil‑on‑plug ignition, good plugs help maintain smooth idle, strong pull through the revs, and reliable hybrid transitions on the 2.5‑litre hybrid models.

For servicing, owners should follow the logbook interval in the Toyota Warranty & Service booklet for their specific engine. Toyota’s long‑life iridium plugs typically run well past 100,000 kilometres, with many schedules calling for inspection and replacement around the 120,000–150,000 kilometre mark (or earlier if there are symptoms). If the Camry shows hard starting, rough idle, or a misfire code, have the plugs checked sooner.

• Common signs the plugs are tired: sluggish performance, higher fuel use, hesitations under load, longer crank times, or the engine light with misfire codes.
• Best practice: replace all plugs as a full set and stick with the exact spec listed by Toyota (heat range, reach, and design).

1. Use only the specified iridium type