NGK Iridium Spark Plug (91898) – ILFER7C8EG

NGK Iridium Spark Plug (91898) – ILFER7C8EG

The NGK ILFER7C8EG is a high-performance iridium spark plug designed for modern turbocharged engines. As an authorised NGK retailer, we supply the genuine article, the same plug trusted by leading manufacturers as original equipment. This particular reference is a direct cross to VW OE part number 06K 905 601 L, making it a popular fit on many VAG 2.0 TSI engines.

What makes iridium different?

Iridium is one of the hardest precious metals available, which allows NGK to produce an exceptionally fine centre electrode. A finer tip means the spark fires more efficiently, the plug fouls less easily, and the wear rate stays slow over a long service life. In practical terms, that translates to a more stable idle, better cold starts, cleaner combustion, and a small but worthwhile gain in fuel efficiency and emissions performance.

This plug also features a double precious metal configuration, with the ground (earthed) electrode tipped to match the centre electrode. The result is balanced wear on both sides of the spark gap and consistent ignition performance throughout the plug’s life.

Key benefits

• Iridium centre electrode for a precise, reliable spark
• Slow wear rate and long service life
• Improved anti-fouling, ideal for direct injection turbo engines
• Stable idle and smoother running
• Integral 1kOhm resistor for interference suppression
• Genuine OE replacement for VW 06K 905 601 L

Technical specification

Fitment

The ILFER7C8EG is commonly fitted to popular VW and Audi 2.0 TSI engines as an OE replacement. To make sure this is the correct plug for your vehicle, please use the vehicle lookup on our site or check the Vehicle Fitment tab for the full list of supported models.

About NGK

NGK is the UK’s leading spark plug brand and the world’s largest supplier to major car manufacturers. The same plugs you buy off the shelf are the ones used in Formula 1, World Rally, and MotoGP, where ignition reliability is non-negotiable. When you fit NGK, you’re fitting the standard the rest of the industry is measured against.

Note: Spark plugs should be replaced as a full set to maintain even running across all cylinders. Always torque to the manufacturer’s specification on installation.

Applications

Please note, customers are wholly responsible for checking fitment for their vehicle.