J4520IUH24 Spark plug NGK 3797 M10 x 1,0 16 mm

The NGK CR8EHIX-9 is part of the NGK Iridium IX range.NGK Iridium IX is the performance upgrade from a standard plug. The 0.6 mm fine-wire iridium centre electrode needs less voltage to fire and produces a more concentrated spark, giving quicker starting, crisper throttle response and steadier idle, particularly on high-compression, tuned or high-revving engines. Iridium is around six times harder than platinum and wears very slowly, so the gap stays accurate far longer than nickel. The tapered ground electrode reduces quenching of the flame kernel. Fitted in place of the equivalent standard NGK plug of the same heat range; check the gap before installation. Cross reference (approximate equivalents): Denso IUH24, 5368. Equivalents from NGK’s 2024 cross-reference chart – check thread size, reach and seat type before fitting.

Easy to use Value for money Design & durable