Iridium Spark Plug

The ACDelco Professional 41-114 is an iridium spark plug designed to be a premium aftermarket replacement for your vehicle's original components. Featuring advanced iridium composition, these spark plugs offer a high melting point and exceptional strength, ensuring excellent wear resistance and long-term durability. The iridium fine-wire electrode promotes efficient combustion and helps burn away carbon deposits, contributing to stable engine idle and smooth performance. This design also aids in reliable cold starting and quicker acceleration. These spark plugs are manufactured to meet ACDelco's expectations for fit, form, and function. They are pre-gapped during manufacturing, and ACDelco advises against attempting to gap them, as this could cause damage. Always ensure new spark plugs are installed to the proper torque specification. The ACDelco 41-114 is compatible with a wide range of Cadillac, Chevrolet, and GMC models from 2014 to 2018, including the Escalade, Camaro, Corvette, Silverado 1500, Express, Suburban, Tahoe, Savana, Sierra 1500, Yukon, and Yukon XL.