NGK 91234 IZFR6Q Laser Iridium Spark Plug M14 Heat Range 6

The NGK 91234 (IZFR6Q) Laser Iridium spark plug is a fine-wire iridium spark plug designed for long service life and consistent ignition. It is built to OE standards and works as an OE-equivalent replacement ignition plug in applications that originally used iridium plugs.

Key Features:

• Iridium alloy center electrode: The fine-wire tip is very hard and has a high melting point, so it holds up well in modern high-efficiency engines.
• Platinum ground electrode: Unless the OE design specifies otherwise, the platinum protection on the ground electrode supports good ignitability and even wear.
• Copper core: A 98% pure copper core dissipates heat well and helps prevent overheating.
• Alumina ceramic insulator: The high-grade ceramic insulator is strong and helps reduce the risk of dielectric punch-through.
• Resistor design: The built-in resistor (5000 ohm) is part of the plug's design.

Specifications:

• NGK part number: 91234 (stock code IZFR6Q)
• Thread size: M14 x 1.25
• Reach: 19 mm
• Hex size: 5/8 in (18 mm)
• Pre-set gap: 0.032 in
• Heat range: NGK 6
• Seat type: Gasket
• Insulator: Projected
• Terminal: Solid, non-removable nut
• Includes: Iridium-tipped spark plug with gasket

NGK is a leading OE supplier of spark plugs. The Laser Iridium line is made for drivers who want long-lasting, reliable ignition performance.