Parts for your 2006 Toyota Kluger-Spark plugs

2006 Toyota Kluger Spark Plugs — What They Do and When to Replace

Yes, spark plugs are absolutely relevant and fitted to the 2006 Toyota Kluger. The XU20 Kluger runs petrol engines (commonly the 3.3L 3MZ‑FE V6, with some markets also seeing the 2.4L 2AZ‑FE), all using coil‑on‑plug ignition and long‑life iridium spark plugs. This is supported by Toyota’s Repair Manual for the Kluger/Highlander platform, the Toyota Australia owner’s manual and service logbook, and application catalogues from Denso and NGK. Factory fitment is iridium long‑life plugs designed for extended intervals.

On a 2006 Toyota Kluger, spark plugs ignite the air–fuel mix in each cylinder, keeping the V6 (or four‑cylinder) smooth, punchy, and efficient. They’re small, but they make a big difference to fuel economy, cold starting, and overall drivability. Over time the centre and ground electrodes wear, gaps open up, and misfires creep in—especially under load or at idle. That’s when fuel use climbs and the dash may light up with a check‑engine warning.

Toyota equips the Kluger with iridium plugs for durability. In many Toyota schedules worldwide, these are due around 160,000 km or 10 years