Kia Sportage Spark Plugs: Intervals, Fitment & Warning Signs
On the Sportage, a documented case saw a dealer refuse to fix a blocked catalytic converter caused by their own repair, arguing the warranty had lapsed while the car sat in their possession.
Illustration for editorial purposes
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OEM Part Number: confirm via engine code — aftermarket NGK 93815 / Bosch 0 242 129 524
| Petrol engines in this generation | 1.6 GDI 132/140 HP; 1.6 T-GDI 177 HP (and AWD); 2.0 150/155/157/159 HP (and AWD); 2.0 T-GDI 241/243 HP (and AWD); 2.4 GDI 184 HP (and AWD); plus 1.6 LPG, 2.0 Alcohol and 2.0 Flex variants. No engine codes are given. |
|---|---|
| Spark plugs (aftermarket) | NGK 93815 (iridium, 16 mm hex, M12x1.25); NGK 94595 (iridium, 0.8 mm, M12x1.25); NGK 9723 (iridium, M12x1.25); Bosch 0 242 129 524 (1.0 mm, M12x1.25, 23 Nm); Bosch 0 242 135 548 (1.0 mm, M12x1.25); Denso IXUH22FTT (iridium centre, platinum earth, M12x1.25); Denso VXUH20I (iridium, platinum earth, M12x1.25); Champion CCH9023 (iridium, 1.0 mm, M12x1.25) |
| Genuine (OE) numbers quoted | None quoted in catalogue listings — order genuine plugs against your VIN / engine code |
| Fitment notes | Every plug listed is a 16 mm hex M12x1.25 iridium type; the plugs are listed for the whole range rather than per engine, so check the gap against the engine (the turbocharged 1.6 and 2.0 T-GDI engines usually need a tighter gap than the naturally aspirated ones); no change interval is given. |
A Genuinely Damning, Real Warranty Story Worth Knowing — Kia Sportage Spark Plugs
This is genuinely worth knowing if you're relying on warranty timing to cover a repair: one documented case on a related model saw all of a car's coil packs fail simultaneously, replaced correctly under warranty, but this repair produced a resulting blocked catalytic converter that the dealer then refused to fix — arguing the warranty had since expired, despite the car having remained in the dealer's own possession throughout the entire process.
It's also genuinely worth knowing an honest parts-sourcing frustration on some newer engines: major spark plug manufacturers don't always list a compatible plug for certain specific engine variants, effectively forcing owners toward the genuine Kia part number at a correspondingly higher price.
Kia Sportage Spark Plugs: A Cheap Part That Causes Expensive-Feeling Problems
On the Kia Sportage, there's rarely a clear signal when spark plugs wear out — just a rougher idle, marginally less pep off the line — vague enough to get pinned on other engine issues. Since the part costs so little, it's also one of the easiest things to keep putting off.
Kia Sportage Spark Plugs: Watch: Replacing It
4th-gen Sportage 2.4 (not a UK engine).
Kia Sportage Spark Plugs: What They Do
On the Kia Sportage, combustion efficiency, fuel economy and smooth running all trace back to spark plug condition, since these are what ignite the compressed fuel-air mixture in each cylinder. Petrol engines depend on them entirely — diesels skip spark plugs altogether, igniting fuel through compression instead.
Kia Sportage Spark Plugs: Generations & Spark Plug Count
| Diesel variants | Not applicable — diesel engines use compression ignition and have no spark plugs at all |
|---|---|
| Petrol variants (all trims) | 4 spark plugs — one per cylinder |
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Kia Sportage 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 Kia Spark Plugs
The same part, covered across other Kia models.