Volkswagen Audi Iridium Spark Plug 04E905601B PZKER7B8EGS Precise Ignition Upgrade

KLP iridium spark plug 04E905601B PZKER7B8EGS directly replaces OEM 04E905601B; highly universal; fits many post-2000 VW/Audi models (e.g., Golf, Jetta, Passat). Ignites the air–fuel mixture; iridium electrode and 12×20.5 copper pad design for precise, stable ignition. Replacing improves acceleration lag and idle jitter. If starting is difficult, fuel economy increases, or power drops, spark plug wear indicates replacement.