NGK engineered this spark plug around the applications listed by the manufacturer, not around a generic catalog listing. Fitment was developed on the vehicle, so mounting points, clearances and hardware line up the first time instead of after an afternoon of trimming.

NGK has spent decades chasing tolerances most buyers never see, and it shows in how this spark plug seats, seals and holds up after a few heat cycles. The NGK Nickel Spark Plug Box of 4 (R5671A-10) – Plugs – 5820 takes a weak point on the applications listed by the manufacturer and turns it into something you stop thinking about.

• Genuine NGK spark plug, part number 5820
• Engineered fitment for the applications listed by the manufacturer
• Direct replacement or upgrade for the factory piece, using factory mounting points
• Built from materials rated for real heat, load and weather, not showroom duty
• Backed by the manufacturer warranty and by our own fitment support before you order
• Ships from current production stock through our direct distribution account
• Shipping weight about 0.43 lb, packed to arrive undamaged
• Sold as a set of 4

Fitment: the applications listed by the manufacturer. Always match the year, make, model, engine and trim of your vehicle against the manufacturer listing before ordering, and check any option codes that change the part on your build.

Not sure it is the right one? Send us your year, make, model and engine and we will confirm before you buy. We ship direct from the manufacturer network, so you get current production stock, not shelf-worn boxes.