Hyundai i10 Spark Plugs: Intervals, Fitment & Warning Signs
On the i10, a documented case on a related model saw ceramic plug cracking and coil failures recur four separate times on the same car.
Illustration for editorial purposes
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OEM Part Number: 18843-08062 (as quoted in catalogue listings — confirm via engine code) — aftermarket NGK 97098 / Bosch 0 242 135 545
| Petrol engines in this generation | 1.0 (67 HP), 1.2 (82/83/87/88 HP), LPG 1.0 (67/69 HP) |
|---|---|
| Spark plugs (aftermarket) | NGK 97098 (iridium, 16 mm hex, M12x1.25); NGK 1989 (iridium, 16 mm hex, M12x1.25); NGK 4288 (platinum, 16 mm hex, M12x1.25); Bosch 0 242 135 545 (0.7 mm gap, M12x1.25); Bosch 0 242 135 554 (1.1 mm gap, M12x1.25); Denso VXUH20I (iridium centre, platinum earth, M12x1.25); Denso XUH20TTi (nickel, M12x1.25); Denso ZXU20HPR11 (iridium centre, platinum earth, M12x1.25) |
| Genuine (OE) numbers quoted | Denso XUH20TTi (OE 18843-08062); Denso ZXU20HPR11 (OE 09482-00629) |
| Fitment notes | All plugs are 16 mm hex M12x1.25; the factory-style nickel/copper choice is Denso XUH20TTi or Champion OE197/T10, with iridium upgrades from NGK 97098, Denso VXUH20I and Beru Z359. Brisk 1963 lists a 90,000 km interval. No plug is tied to an engine code. |
A Genuinely Distinctive, Real Case Worth Knowing About — Hyundai i10 Spark Plugs
This is genuinely worth knowing if you're facing a recurring plug or coil fault that seems to keep coming back: one documented case on a related model saw ceramic spark plugs cracking and causing misfires, alongside ignition coil failures, recur four separate times on the same car, with each instance replaced under warranty only for the fault to return.
It's also worth knowing a genuinely useful distinction: unlike spark plugs, which are a genuine, expected consumable, ignition coils are not considered a standard wear-and-tear part — worth pushing back if a dealer tries to dismiss a coil failure as simply expected wear.
Hyundai i10 Spark Plugs: A Cheap Part That Causes Expensive-Feeling Problems
On the Hyundai i10, symptoms of worn spark plugs are subtle by nature — a touch rougher at idle, a little less responsive off the line — and easy to attribute to almost any other engine gremlin. Because the part itself is so cheap, it's routinely overlooked well past when it should've been changed.
Hyundai i10 Spark Plugs: Watch: Replacing It
2014 i10 1.1; alt aVqoEEeM48E (1.2 MPI).
Hyundai i10 Spark Plugs: What They Do
How well the Hyundai i10's engine runs, how efficiently it burns fuel, and how smooth it feels are all tied to spark plug condition, since these ignite the compressed fuel-air mixture in each cylinder. That's a petrol-engine job specifically — diesels ignite fuel through compression and have no spark plugs at all.
Hyundai i10 Spark Plugs: Generations, Engines & Spark Plug Count
| 1.0 MPI/T-GDi (standard/entry trims) | Genuinely only 3 spark plugs — this three-cylinder engine is shared between the Hyundai i10 and Kia Picanto (they're closely related platform-mates), not a four-cylinder |
|---|---|
| 1.2 (higher trims, where fitted) | 4 spark plugs — a genuinely different, larger four-cylinder engine from the standard 3-cylinder 1.0 unit |
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Hyundai i10 Spark Plugs: Warning Signs, DIY Difficulty & Aftermarket Advice
These are the same regardless of make or model — see our full Spark Plugs Guide for symptoms of worn plugs, why matching your exact plug specification matters, and trusted brands to buy from.
More Hyundai Spark Plugs
The same part, covered across other Hyundai models.