Four spark plugs, one for each cylinder in the four-cylinder engine.
In more detail, the 2015 Accent uses a 1.6-liter inline-four with coil-on-plug ignition, so there is a dedicated spark plug for every cylinder. This article outlines the plug count, layout, and common maintenance considerations for this model year.
Engine and ignition design
The 2015 Hyundai Accent is equipped with a 1.6-liter inline-four engine. It uses a coil-on-plug ignition system, meaning each cylinder has its own ignition coil and its own spark plug.
Spark plug layout
Before we list the specifics, note that the car's ignition system is coil-on-plug, with one ignition coil per cylinder and one spark plug per coil.
- There are four spark plugs total.
- The engine is a four-cylinder inline configuration (1.6 liters in most market-spec cars).
- Each cylinder has its own ignition coil, delivering a spark to its corresponding plug.
- The plugs are installed in the cylinder head and are typically accessed under the engine cover for maintenance.
All four spark plugs should be considered as a set when replacing, to ensure balanced combustion and avoid misfires.
Maintenance considerations
Guidance on replacement intervals, plug types, and service tips.
Before listing common maintenance considerations, keep in mind that replacement intervals depend on the plug type and driving conditions. Modern engines with iridium/platinum plugs generally last longer than copper plugs.
- Replacement interval: many iridium/platinum plugs are rated for 60,000–100,000 miles, but consult the owner's manual or dealer for the exact specification for your vehicle and plug type.
- Plug type: OEM recommendations typically favor iridium or platinum plugs for longevity; copper plugs require earlier replacement.
- Replacement approach: in most cases, replace all four plugs as a set and inspect ignition coils for wear or misfires while performing service.
Following these guidelines helps maintain smooth idle, proper fuel economy, and reliable starts.
Summary
The 2015 Hyundai Accent has four spark plugs—one for each cylinder in its four-cylinder engine. This setup uses a coil-on-plug ignition system, and maintenance typically involves replacing all four plugs at intervals advised by Hyundai for the chosen plug type.