Premium Automotive Spark Plug – High-Performance Ignition for Buick & Chevrolet
Ultra-durable iridium core ensures precise spark delivery for optimal combustion efficiency. Precision-engineered ceramic insulator resists extreme heat (up to 1,600°F) and voltage stress. Copper-nickel alloy electrode enhances conductivity, reducing misfires. Factory-direct OEM replacement (Part #12621258 / 41110) – matches exact specs for Buick/Chevrolet engines. Includes integrated spark tester for instant diagnostics. Ideal for mechanics, fleet operators, and DIY enthusiasts. Bulk pricing available – wholesale cost savings up to 60% vs retail. Ships globally with guaranteed lowest price.