Ignitions and Electrical› Ignition Components

NGK

LFR6AIX-11 Iridium IX Spark Plug

$9.40

SKU: NGK6619 - LFR6AIX-11

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Overview

The NGK 6619 LFR6AIX-11 is an Iridium IX spark plug designed for performance enthusiasts. It features a fine wire center electrode for durability and a stable spark, while the iridium alloy construction provides a high melting point suitable for high-performance engines. The plug also includes trivalent metal plating for anti-corrosion and anti-seizing, corrugated ribs to prevent flashover, and a pure alumina silicate ceramic insulator for strength and heat transfer.
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The iridium alloy, known for its extremely high melting point, makes these plugs ideal for today's advanced, high-output engines. Construction features include trivalent metal plating for superior resistance to corrosion and seizing, corrugated ribs to prevent flashover, and a pure alumina silicate ceramic insulator that provides exceptional strength and efficient heat transfer. A copper core further aids in heat dissipation, while triple seals ensure a leak-free performance. Key specifications include a 14mm thread diameter with a 1.25mm thread pitch, a gasket seat type, a 26.5mm reach, and a 5/8" hex size. The fine wire iridium center electrode measures 0.6mm and is projected, paired with a standard nickel ground electrode featuring a taper cut shape. This spark plug has a heat range of 6 and is designed for longevity, with a manufacturer-estimated lifespan of 50,000 miles. Torque specifications are provided for both cast iron (18-25.3 lb. ft.) and aluminum (18-21.6 lb. ft.) cylinder heads.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

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Specifications

BrandNGK
Part NumberNGK6619 - LFR6AIX-11
CategoryIgnitions and Electrical
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