Kia Sorento Spark Plugs: Intervals, Fitment & Warning Signs
On the Sorento, a documented case on a related model 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 4469 / Bosch 0 242 129 524
| Petrol engines in this generation | 2.0 GDI 241/243 HP; 2.4 172/174/175 HP; 2.4 GDI 188/190 HP; 3.3 266/271/290 HP; 3.3 CVVT 250 HP; 3.5 D-CVVT 249/276/280 HP (most also as 4WD). No engine codes are given. |
|---|---|
| Spark plugs (aftermarket) | NGK 4469 (iridium, 16 mm hex, M14x1.25); NGK 2477 (iridium, M14x1.25); NGK 9723 (iridium, M12x1.25); NGK 6376 (nickel, M14x1.25); Bosch 0 242 129 524 (1.0 mm, M12x1.25, 23 Nm); Bosch 0 242 135 548 (1.0 mm, M12x1.25); Bosch 0 242 236 577 (0.7 mm, M14x1.25, 28 Nm); Denso IXUH22FTT (iridium centre, platinum earth, M12x1.25) |
| Genuine (OE) numbers quoted | Denso SK16PR-L11 is quoted against OE 27410-23700; Denso K16HPR-U11 (nickel) against OE 5960F3 |
| Fitment notes | Both M12x1.25 and M14x1.25 plugs are listed, so thread size depends on the engine (the 2.0 and 2.4 four-cylinder GDI engines and the 3.3/3.5 V6 engines are different families) and the plug must be matched to the engine; the source does not say which plug goes with which engine; NGK 1640 is an LPG/CNG plug (60,000 km interval). |
A Genuinely Damning, Real Warranty Story Worth Knowing — Kia Sorento 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 Sorento Spark Plugs: A Cheap Part That Causes Expensive-Feeling Problems
Worn spark plugs on the Kia Sorento rarely announce themselves clearly — a slightly rougher idle, a bit less punch off the line — symptoms easy to blame on almost anything else in the engine bay. The part itself costs very little, which makes it an easy one to overlook for far longer than it should be.
Kia Sorento Spark Plugs: Watch: Replacing It
3rd-gen Sorento (3.3 V6 likely); 2.4 alt Y9iK_YaDA10 is 2011-2015.
Kia Sorento Spark Plugs: What They Do
The Kia Sorento's spark plugs ignite the compressed fuel-air mixture inside each cylinder, and their condition directly affects combustion efficiency, fuel economy and smooth running. Petrol engines rely entirely on them; diesel engines don't use spark plugs at all, relying on compression instead.
Kia Sorento 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 Sorento 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.