Chevrolet Buick Spark Plug 55569865 ZF Quality High-Efficiency Ignition OEM Replacement

Chevrolet Buick models’ spark plugs 55569865 are manufactured with ZF standard process, electrode material nickel-copper alloy, with precise resistance matching and durability testing. Under normal conditions, they can reliably run 40,000-60,000 km. 6 kΩ resistance effectively suppresses electromagnetic interference, ensuring stable idle and responsive acceleration, with no significant difference from original parts in ignition efficiency. Compatible with Cruze, Excelle (LaCrosse) etc. 2000 onwards 1.6L/1.8L engines. Installation requires standard M14x1.25 thread sleeve.