NGK Spark Plug 91121 M12 x 1.25 14 mm

This is the NGK ILKAR7J7G / 91121 Laser Iridium spark plug. It features a laser-welded iridium center electrode and a very small tip diameter, designed to provide superior ignitability and long service life. The iridium/platinum surface combination helps reduce wear, supporting stable idle and anti-fouling performance. The center electrode is 0.6 mm in diameter, which lowers ignition voltage requirements for a powerful spark. A platinum disc is welded to the backside of the ground electrode, contributing to durability. Trivalent metal plating enhances corrosion resistance and anti-seizing properties, contributing to reliability and maintenance friendliness over the plug’s service life. Iridium plugs tend to offer improved starts, quicker acceleration, better fuel economy, and lower emissions compared with standard nickel plugs. This plug is compatible with manufacturers and vehicle cross-reference notes as part of NGK’s iridium line, and is sold as one unit.

Features

• Laser-welded iridium center electrode 0.6 mm
• Platinum disc welded to ground electrode backside
• Trivalent metal plating for anti-corrosion/anti-seizing
• Improved starts, acceleration, economy and emissions
• Long service life, durable ignition performance

Note: Please read the general installation instructions before installing. Compatibility information is provided for guidance only and does not constitute a warranty; carefully compare specifications to your vehicle before ordering or installation.