Denso K16TNR-S9 (3329) Nickel Alloy Spark Plug Universal for Multiple Models Durable Ignition

Denso K16TNR-S9 (3329) nickel alloy spark plug is an OEM OE replacement; generic compatibility is strong, direct substitute for most models’ factory plugs. Provides stable ignition and complete combustion; suitable for post-2000 Denso vehicles including Toyota, Honda, Nissan. Replacing resolves starting difficulty, rough acceleration, high fuel consumption; ideal for older vehicles returning to performance. If rough idle, sluggish acceleration or rising fuel consumption, spark plug aging is likely.