Parts for your 2004 Toyota Avensis-Spark plugs

2004 Toyota Avensis spark plugs: relevant, how they work, and when to replace

Per Toyota’s 2004 Avensis owner’s manual and standard plug catalogues from Denso and NGK, spark plugs are fitted to all petrol Avensis engines of this era (1.6, 1.8, 2.0 and 2.4 VVT-i/D-4). Diesel D-4D variants don’t use spark plugs at all