NGK Spark Plug – ILFR6GE – #4212

The NGK ILFR6GE (#4212) spark plug is engineered for modern, high-performance engines that demand consistent ignition, long service life, and dependable cold starts. As an original equipment plug in many late-model applications, this premium design delivers the durability and firing precision required for today’s advanced ignition systems.

Built with a fine-wire iridium center electrode, the ILFR6GE provides a strong, focused spark that improves combustion efficiency and helps maintain stable idle quality. Iridium’s extreme hardness allows for a smaller diameter electrode without sacrificing strength, resulting in improved ignitability and longer plug life compared to traditional copper or standard platinum plugs.

To further enhance longevity, this spark plug features platinum on the ground electrode, adding an extra layer of protection against wear and gap erosion. This dual precious-metal construction helps maintain proper spark gap over time, reducing misfires and supporting consistent engine performance between service intervals.

Key Features:

• Part Number: #4212
• Model: ILFR6GE
• Fine-wire iridium center electrode for strong, reliable spark
• Platinum-enhanced ground electrode for extended durability
• Designed for modern engines requiring high ignitability
• Original equipment on many late-model vehicles
• Sold individually

Whether you are performing routine maintenance or replacing worn plugs to restore performance, the NGK ILFR6GE delivers the reliability and precision expected from one of the most trusted names in ignition components.

Replace at manufacturer-recommended service intervals to maintain optimal fuel efficiency, throttle response, and overall engine performance.