Six spark plugs power the Nissan 370Z's 3.7-liter V6, with one plug per cylinder. The car uses a coil-on-plug ignition system, delivering a spark to each cylinder from individual ignition coils.
Engine at a glance
The 370Z is equipped with Nissan's VQ37VHR 3.7-liter V6. It is a 24-valve DOHC design with variable valve timing and a high-revving character. Each cylinder has its own ignition coil, typically arranged as coil-on-plug units, enabling independent spark events for precise timing.
Spark plug count and ignition setup
To understand why the 370Z has six spark plugs, consider the engine’s architecture: six cylinders, one spark plug per cylinder, and a modern ignition system that places a coil at each cylinder.
Here are the key specifications that determine the spark plug count:
- Engine: VQ37VHR 3.7-liter V6
- Cylinders: 6
- Valves: 24 (4 per cylinder)
- Ignition system: Coil-on-plug
- Total spark plugs: 6
In practical terms, if you’re planning spark plug replacement or routine maintenance, you’ll replace all six plugs at once, consistent with OEM service intervals for this engine.
Why spark plug count matters
Knowing the number of spark plugs helps with maintenance planning, pricing, and understanding the ignition layout. For the 370Z, six plugs mean six replacements per cycle and six ignition coils that seat above each cylinder.
Summary
The Nissan 370Z uses six spark plugs—one for each of its six cylinders—powered by a coil-on-plug ignition system, in line with its 3.7-liter V6 DOHC design.