Keep your engine firing reliably with this 4-pack of genuine NGK BR5ES 5866 standard spark plugs. Designed for consistent ignition and dependable performance, each plug features a copper core, durable nickel tip, and a 0.9 mm pre-set gap for effective combustion and smooth starting.

Specifications include M14 x 1.25 thread size and NGK heat range 5. A practical replacement choice for maintenance or tune-ups, these NGK spark plugs are commonly searched by part number BR5ES and 5866. Please verify the required spark plug number, dimensions, and vehicle fitment before ordering; listed applications may be incomplete or unverified.