NGK Spark Plugs NGK: Laser Iridium Plug 4462

NGK IZFR6J Spark Plug

NGK Laser Iridium spark plugs offer the best combination of performance and longevity. The iridium tipped center electrode provides durability six times harder than platinum. NGK's high-grade pure alumina ceramic and 98% pure copper core prevents the spark plug from overheating while providing reliable starts.

Laser iridium plugs are tested to the highest standards to ensure quality and durability. Actual OE or equivalent replacement spark plug.

Part Number: IZFR6J

Stock Number: 4462

Resistance (Ohm): 5000

Ground configuration: Standard

Ground electrode core material: Nickel

Center electrode core material: Copper

Center electrode tip material: Iridium

Check your engine and maintenance manual for the correct spark plug and only use as recommended by your engine's original equipment manufacturer. Using the wrong plug can reducing optimum performance, reduce fuel economy or cause damage to your engine.

Replaces Quicksilver / Mercury 33-843220Q

Frequently Asked Questions

• What is the NGK IZFR6J Spark Plug used for? The NGK IZFR6J Spark Plug is an actual OE or equivalent replacement spark plug featuring a Laser Iridium center electrode tip. Its iridium electrode is designed for durability, while the plug's ceramic and copper core construction helps provide reliable starting and resistance to overheating.
• What type of electrode does the NGK IZFR6J Spark Plug use? The NGK IZFR6J uses an iridium center electrode tip with a copper center electrode core. The ground electrode has a standard configuration and uses nickel as its core material. NGK states that the iridium-tipped center electrode provides durability six times harder than platinum.
• What are the specifications of the NGK IZFR6J Spark Plug? The NGK IZFR6J has part number IZFR6J and stock number 4462. It has a resistance of 5000 ohms, a standard ground configuration, a nickel ground electrode core, a copper center electrode core, and an iridium center electrode tip.
• What does the NGK IZFR6J Spark Plug replace? The NGK IZFR6J Spark Plug replaces Quicksilver / Mercury part number 33-843220Q. Verify the correct spark plug for your specific engine by checking the engine and maintenance manual and following the recommendation of the engine's original equipment manufacturer.
• How do I know if the NGK IZFR6J Spark Plug is correct for my engine? Check your engine and maintenance manual to confirm the correct spark plug before installation. The product description does not specify particular engine models or applications for IZFR6J, so engine fitment should not be assumed. Using an incorrect spark plug can reduce optimum performance, reduce fuel economy, or cause engine damage.
• What are the benefits of the NGK Laser Iridium spark plug construction? NGK Laser Iridium spark plugs are tested to high standards for quality and durability. The IZFR6J uses a high-grade pure alumina ceramic and 98% pure copper core, while its iridium-tipped center electrode is designed for durability and reliable performance.