Is this the right plug for my Civic?

It fits the 2017–2021 Civic Type R (FK8) and the 2016–2021 Civic 1.5T non-Si. Si and 2.0T models use different plugs.

How many plugs do I need?

Each order is one plug. A four-cylinder Civic needs four for a full set.

Yes, it comes at 0.032 inch, the factory spec. Check the gap before installing, and re-gap or index for high-boost builds.

Is this a genuine Honda part?

It is the NGK plug sold under Honda part number 12290-59B-003, NGK part 95112.

What makes it better than a standard plug?

The iridium center and platinum ground tips wear more slowly and resist fouling better than nickel plugs.

Do I need to change the gap for a tuned car?

For high boost or power, gapping and indexing are recommended for optimal use.

NGK

Honda / NGK Laser Iridium Spark Plug ILZKAR8H8S Heat Range 8

Q: Where is the Honda / NGK Laser Iridium Spark Plug ILZKAR8H8S Heat Range 8 cheapest?

At NGK, for $17.17, 48% under what the other stores charge, as of our latest check.

Q: What do buyers say about the Honda / NGK Laser Iridium Spark Plug ILZKAR8H8S Heat Range 8?

Rated 5 out of 5 from 5 ratings.

Q: Where can I buy the Honda / NGK Laser Iridium Spark Plug ILZKAR8H8S Heat Range 8?

13 stores we checked sell it, including NGK, Walmart, PRL Motorsports, Summit Racing, AutoZone.

Best price now

$17.17at NGKChecked 10 h ago

48% under what the other stores charge

Compared across 13 stores. Prices are checked against each store and labelled with when.

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What reviewers say

Owners of the 1.5T and Type R use these as the stock replacement plug and report smooth idle and clean running after a tune-up. Most complaints center on having to order four for a full set and on checking the gap before install.

What people mention

FitmentPraisedOwners say it drops into the 1.5T and Type R engines as the exact stock plug.
Idle qualityPraisedDrivers report a smoother idle and cleaner running after swapping in fresh plugs.
GapMixedIt comes pre-gapped to factory spec, but owners advise checking the gap before installing.
QuantityCriticisedBuyers note it is one plug per order, so a four-cylinder car needs four.
High-boost useMixedTuners say high-boost engines may need re-gapping or indexing for best results.

About the Honda / NGK Laser Iridium Spark Plug ILZKAR8H8S Heat Range 8

This is a single NGK Laser Iridium spark plug, model ILZKAR8H8S, in heat range 8. It is an OE direct replacement for the 2017-2021 Honda Civic Type R FK8 and the 2016-2021 Civic 1.5T non-Si. It also fits variant models, including RHD and international models.

The center electrode has a laser-welded iridium tip. A platinum disc is welded to the back of the ground electrode. Both electrodes use fine wire, which gives the smallest tip diameter available with iridium and platinum surfaces. This design is meant to wear slowly, hold a stable idle and resist fouling. It is also meant to improve fuel efficiency and lower emissions.

The plug has trivalent metal plating that resists corrosion and seizing. It comes pre-gapped at the factory spec of 0.032". Double-check the gap before installing. Gapping and indexing are recommended for use on high boost or high power engines.

Brand

NGK

Model

Laser Iridium ILZKAR8H8S

Heat range

Quantity

1 spark plug

Gap

0.032" (factory spec), pre-gapped

Center electrode

Laser-welded iridium tip, fine wire

Ground electrode