Premium Iridium Tip: Engineered with ultra-fine 0.6mm iridium center electrode for superior spark performance and extended 60k-mile durability.

Laser-Welded Construction: Precision laser welding ensures perfect gas seal and consistent thermal conductivity for GM 3.0L/3.6L engines (LFW/LAF/LLT).

OE-Validated Fit: Direct replacement for Buick/Cadillac models, featuring trivalent metal plating to prevent corrosion and carbon fouling.

Optimized Heat Range: Patented tapered ground electrode design reduces quenching effect, boosting fuel efficiency by 5% in city/highway driving.

Professional-Grade Packaging: Ships in crush-proof NGK factory box with anti-counterfeit hologram for wholesale buyers.

Bulk Purchase Advantage: Factory-direct pricing for auto repair shops/fleet managers – pallet discounts available.