ACDelco Spark Plugs are precisely engineered and manufactured to provide everyday reliability and efficient performance, helping your engine run cleaner and longer.

Available for most older vehicle makes and models, ACDelco Spark Plug design features:

* A copper-core center electrode that helps provide improved heat transfer to the tip, giving you the reliability you're looking for while improving its resistance to low-speed carbon fouling.
* Hot-tip insulator heats fast and fires hot to promote longer electrode life for miles of dependable performance.
* Nickel-chrome alloy sheathing on the ground and center electrodes that resists wear from spark erosion and the corrosive environment of the combustion chamber.
* 12-month/12,000-mile limited warranty.

MFG# MR43-LTS MR43LTS