Parts for your 2008 Toyota Land cruiser-Spark plugs

2008 Toyota LandCruiser spark plugs: what they do and when to replace them

For the 2008 Toyota LandCruiser (200 Series), spark plugs are relevant on the petrol V8 models and not used on the diesel. Technical references including the Toyota UZJ200 Repair Manual for the 2UZ‑FE 4.7L V8 confirm the engine uses long‑life iridium spark plugs, while Toyota documentation for the 1VD‑FTV 4.5L twin‑turbo diesel explains it’s a compression-ignition design that uses glow plugs instead of spark plugs. Toyota’s scheduled maintenance literature for petrol LandCruiser 200 models also lists spark plug replacement at long intervals, consistent with iridium fitment.

On petrol variants, the spark plug’s job is simple but vital: it lights the compressed air‑fuel mix at precisely the right moment so the V8 fires cleanly and pulls strongly. The factory‑fitted iridium plugs are designed for longevity and stable spark under heat, which suits big‑trip touring, towing and outback work common in Australia and New Zealand.

Service-wise, Toyota specifies long-life intervals for these plugs (typically around 120,000 km or 6 years under normal conditions, per the 2UZ‑FE maintenance schedule). Many owners who tow heavy, idle for long periods, or drive in dusty conditions choose to shorten that to roughly 80,000–100,000 km for peace of mind. Always replace the full set at once and stick with the correct heat range and reach as listed in the workshop manual.

A few practical tips make the job go smoothly:

• Blow debris out of plug wells before removal to avoid grit entering the cylinders.
• Iridium fine‑wire plugs are pre‑gapped, avoid forcing the ground strap. The spec on the 2UZ‑FE is around 1.0–1.1 mm.
• Do not apply anti‑seize to plated plug threads, as advised by plug manufacturers (Denso/NGK) and torque to the workshop spec.
• Inspect coil boots and tube seals, a dab of dielectric grease on the inside of the boot can help future removal.

Tell‑tales of tired plugs include rough idle, sluggish acceleration, increased fuel use, hard starts and misfire under load. If the 2008 LandCruiser is the diesel 1VD‑FTV, none of this applies—there are no spark plugs, that engine uses glow plugs for cold starts and relies on compression for combustion.

Technical sources referenced: Toyota UZJ200 (2UZ‑FE) Repair Manual—Engine Mechanical (spark plug specifications and procedures), Toyota Scheduled Maintenance guides for petrol LandCruiser 200 (iridium, long‑life intervals), Toyota 1VD‑FTV engine documentation (compression ignition and glow plug system), Denso/NGK technical guidance on iridium plug handling and no anti‑seize on plated threads.

Popular questions

Does a 2008 LandCruiser diesel have spark plugs?
No. The 2008 LandCruiser with the 1VD‑FTV 4.5L twin‑turbo diesel is a compression‑ignition engine and uses glow plugs for cold starting. Combustion is triggered by heat from compression rather than a spark, so there are no spark plugs fitted.

How often should spark plugs be replaced on a 2008 LandCruiser petrol V8?
For the petrol 2UZ‑FE V8, the factory iridium plugs are long‑life items typically due around 120,000 km or 6 years under normal use. If the vehicle does a lot of towing, low‑speed 4WDing or dusty work, many workshops recommend bringing that forward slightly for best performance.

What spark plug gap and type does the 2UZ‑FE use?
The 2UZ‑FE in the 2008 LandCruiser uses long‑life iridium plugs with a nominal gap around 1.0–1.1 mm as specified in Toyota’s repair manual. Fine‑wire iridium plugs are usually pre‑gapped, avoid levering on the ground strap, and always confirm the spec before installation.