NGK Laser Iridium Spark Plugs for Honda Civic 2016-2021 (4-Pack) — Iridium Tip, Long-Life

NGK Laser Iridium spark plugs (4-pack, ILZKAR8H8S) are high-durability ignition parts engineered to deliver stronger sparks, longer service life, and more consistent performance for compatible 2016–2021 Honda Civic 1.5L and 2.0L engines.

These OEM-equivalent NGK Laser Iridium plugs combine an ultra-fine iridium tip with a platinum ground disc and engineered insulator features to resist wear, reduce fouling and help maintain steady combustion over many miles. They are designed to fit select Honda Civic models with L4 1.5L turbocharged or L4 2.0L engines (not recommended for Civic Si), providing a direct replacement option with factory-level fitment and specifications (Manufacturer Part Number: 95112).

How will these spark plugs affect starting and throttle response?

Because the center electrode uses a laser-welded iridium tip, the spark energy is concentrated on a very small point, which helps ignite the air/fuel mixture more reliably. Drivers often notice quicker starts and crisper acceleration during light- to mid-load conditions compared with worn or lower-grade plugs.

• Laser-welded iridium center electrode for concentrated spark
• Faster ignition improves cold starts and throttle response
• Designed to maintain consistent firing over time

Will these plugs reduce fouling and extend service intervals?

The extended insulator nose and corrugated ribs resist carbon and oil build-up, lowering the chance of misfires between maintenance intervals. Iridium and platinum surfaces have exceptionally slow wear rates, so the electrodes preserve their geometry longer than standard copper plugs.

• Longer insulator nose reduces deposits on the electrode
• Corrugated insulator ribs help prevent flashover
• Iridium/platinum materials slow wear and delay replacement needs

Are these NGK plugs compatible with my 2016–2021 Honda Civic?

This four-pack (ILZKAR8H8S, MPN 95112) is made to match OE specifications for many Civic L4 1.5L turbo and L4 2.0L models from 2016 through 2021. They are intended as an equivalent replacement part and should thread, seat and seal like the original equipment when installed correctly.

• Fits select 2016–2021 Honda Civic 1.5L turbo and 2.0L engines
• Not recommended for Civic Si applications—check compatibility first
• Each plug includes a triple gasket seal to prevent combustion leakage

What build features improve durability and corrosion resistance?

NGK combines a fine iridium tip with a platinum ground electrode disc and trivalent metal plating to deliver lasting performance and corrosion protection. The materials and construction minimize seizing and electrode degradation even under higher-temperature conditions.

• Iridium tip for high wear resistance and sustained spark quality
• Platinum weld on the ground electrode for extended life
• Trivalent plating helps resist corrosion and eases removal

Who is this for: These NGK Laser Iridium spark plugs are aimed at Honda Civic owners and independent technicians seeking a long-lasting, OE-equivalent ignition solution for non-Si Civic models (L4 1.5L turbo and L4 2.0L) from 2016 to 2021. If you want a direct-fit replacement that emphasizes ignitability, reduced fouling, and corrosion resistance for improved drivability between service intervals, this four-pack provides a practical, vehicle-specific option. Always confirm exact part compatibility with your vehicle’s year, engine code and service manual before purchasing and installation.