Parts for your 2010 Toyota Camry-Spark plugs

2010 Toyota Camry spark plugs — what they do and when to replace them

Technical sources confirm that spark plugs are fitted to the 2010 Toyota Camry and are absolutely relevant for servicing. The Toyota Owner’s Manual and maintenance schedule for the 2010 Camry specify long‑life iridium spark plugs for the 4‑cylinder and V6 petrol engines, and Toyota’s New Car Features for the 2AR‑FE (2.5 L) and 2GR‑FE (3.5 L) detail coil‑on‑plug ignition using spark plugs. The 2010 Camry Hybrid also uses spark plugs with its Atkinson‑cycle petrol engine. There wasn’t a diesel Camry offered in AU/NZ for that model year, so plugs are part of regular maintenance.

On a 2010 Camry, the spark plugs ignite the fuel–air mix in each cylinder, keeping the engine smooth, efficient and easy to start. They play a big role in fuel economy, power and emissions. Toyota fits iridium plugs from factory because they run hotter, resist fouling and last far longer than old copper designs.

For general servicing, most Toyota schedules call for plug inspection at regular service intervals and replacement roughly around the 160,000 km/96‑month mark (engine‑dependent). Local conditions, lots of short trips, or running on lower‑quality fuel can shorten that window. If the Camry feels a bit doughy on acceleration, idles roughly, cranks longer when cold or the fuel use creeps up, tired plugs are worth checking sooner.

Best practice when replacing:

• Use quality iridium plugs that meet Toyota’s spec for your exact engine code (2AR‑FE, 2AZ‑FE or 2GR‑FE).
• Leave the factory set gap alone unless measuring shows it’s out of spec