Suzuki SX4 S-Cross Spark Plugs: Intervals, Fitment & Warning Signs
On the SX4 S-Cross, a persistent misfire on related models that survives fresh plugs and coils can genuinely lead to broad, expensive bundled quotes worth questioning.
Illustration for editorial purposes
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OEM Part Number: confirm via engine code — aftermarket NGK 96412 / Bosch 0 242 236 593
| Petrol engines in this generation | 1.0 AKK310, 1.4 T AKK414, 1.4 Hybrid, 1.5 AKN415, 1.6 AKK416 (diesel 1.6 DDiS AKK416D also listed) |
|---|---|
| Spark plugs (aftermarket) | NGK stock no. 5468 (iridium, M14x1.25, 26.5 mm reach, 16 mm hex); NGK 96412 (iridium, M12x1.25, 26.5 mm reach, 16 mm hex); Bosch 0 242 236 593 (1.1 mm gap, M14x1.25, 16 mm hex); Bosch 0 242 232 802 (1.0 mm gap, M14x1.25, 16 mm hex); Denso VXUHC22G (iridium, platinum earth, M12x1.25); Denso IXUH22FTT (iridium, platinum earth, M12x1.25); Denso IKH20TT (iridium, platinum earth, M14x1.25); Denso SK20HR11 (iridium, M14x1.25) |
| Genuine (OE) numbers quoted | 12290-RL6-G01 (Denso VXUHC22G); A0041592503 (Denso VXUH22I); 22401-AA720 (Kamoka 7100019) |
| Fitment notes | The 1.0 and 1.4 turbocharged engines take long-reach iridium M12x1.25 plugs and the 1.6 takes an M14x1.25 plug, so the engine code decides; copper (Champion OE016/T10) is the budget option for the M14 engine. Brisk 1621 quotes a 100,000 km interval. Beru is not listed. |
Suzuki SX4 S-Cross Spark Plugs: A Cheap Part That Causes Expensive-Feeling Problems
Worn spark plugs on the Suzuki SX4 S-Cross 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.
Suzuki SX4 S-Cross Spark Plugs: What They Do
The Suzuki SX4 S-Cross'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.
Suzuki SX4 S-Cross Spark Plugs: Generations & Spark Plug Count
| Diesel variants, where fitted | Not applicable — diesel engines use compression ignition and have no spark plugs at all |
|---|---|
| Petrol variants (K10B, K12B, K14C and similar) | 4 spark plugs — Suzuki's small-capacity K-series petrol engines are genuinely four-cylinder despite the compact "K10/K12" naming, unlike some rivals' similarly small-displacement engines that use 3 cylinders |
Suzuki SX4 S-Cross Spark Plugs: Watch: Replacing It
First-gen SX4 (predecessor of the S-Cross)
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A Genuinely Honest, Real Account Worth Knowing About — Suzuki SX4 S-Cross Spark Plugs
If you're facing a persistent misfire that keeps returning despite fresh plugs and coils, this is genuinely worth knowing: documented cases on related Suzuki models describe exactly this pattern, with dealers eventually proposing broad, expensive quotes bundling several unrelated-seeming components together for what started as a straightforward misfire. It's genuinely worth asking directly why each specific component is being blamed rather than accepting a bundled quote without question.
It's also genuinely worth knowing that Suzuki's small turbocharged Boosterjet engines use iridium plugs that shouldn't need changing for at least three to four years under normal use, worth bearing in mind if a garage suggests replacing plugs unusually early as part of a misfire diagnosis.
Suzuki SX4 S-Cross 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 Suzuki Spark Plugs
The same part, covered across other Suzuki models.