24 (Denso scale), which is considered a "cold" plug suitable for high-speed or high-load conditions. Thread Diameter: 10mm. Reach: 19mm (3/4"). Hex Size: 16mm (5/8"). Key Features and Benefits
: The ground electrode features a unique U-shaped groove that allows the flame kernel to expand more quickly. This leads to more complete combustion and reduced carbon fouling. denso 5285
: At just 0.4mm, the Iridium center electrode reduces the voltage required to spark, which improves ignitability even under lean conditions. 24 (Denso scale), which is considered a "cold"
Tapered-cut nickel with a U-Groove design. 24 (Denso scale)