Spark Plug NGK Laser Iridium DILZKAR6A11 (91691)

The premium NGK 91691 (DILZKAR6A11) spark plug belongs to the Laser Iridium series, featuring a dual-precious metal design with an iridium center electrode and a platinum chip on the ground electrode. This construction provides unprecedented ignition precision and maximum service life in direct-injection engines. The 'Long Reach' threaded portion is designed for specific modern cylinder head designs, ensuring optimal spark gap positioning within the combustion chamber. This plug helps reduce fuel consumption and improves vehicle responsiveness through instantaneous mixture ignition. Part number 91691 is widely used in Japanese vehicles, particularly on many Nissan and Subaru models where high reliability standards are required. Superior shell sealing and high-quality ceramic insulation guarantee no spark energy loss even at peak cylinder pressures.