Volkswagen Audi Direct Injection Engine Iridium Platinum Spark Plug 06H905601A PFR7S8EG 06H905601B High Performance Replacement

This replacement uses iridium-platinum electrode; higher high-temperature resistance about 3x that of nickel plugs, more stable electrode gap; life up to 80k–100k km. OEM numbers corresponding 06H905601A, PFR7S8EG, 06H905601B, and 1675; fits VW post-2000 direct-injection engines, e.g., Passat, Magotan, Audi A4. Function: ensure sufficient ignition energy, reduce misfires, boost combustion efficiency. Installation: medium; torque 25-30 Nm; avoid over-tightening to prevent cylinder head thread damage.