Nissan Micra Spark Plugs: Intervals, Fitment & Warning Signs
On the Micra, a misfire can damage the catalytic converter if left unaddressed — plus a real, money-saving test to identify the specific failed coil.
Illustration for editorial purposes
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OEM Part Number: confirm via engine code — aftermarket NGK 90061 / Bosch 0 242 140 565
| Petrol engines in this generation | 0.9 IG-T 90 HP; 1.0 71/73 HP; 1.0 IG-T 92/101 HP; 1.0 DIG-T 117 HP; 0.9 LPG 87 HP; 1.0 LPG 90 HP (the 1.5 dCi 90 HP diesel has no spark plugs) |
|---|---|
| Spark plugs (aftermarket) | NGK 90061 (iridium, M12x1.25, 14 mm hex); NGK 90912 (iridium, gap 0.7 mm, M12x1.25, 14 mm hex); Bosch 0 242 140 565 (gap 0.7 mm, M12x1.25, 14 mm hex); Bosch 0 241 140 537 (gap 0.7 mm, M12x1.25, 14 mm hex); Denso IXEH20TT (iridium centre, platinum earth, M12x1.25); Champion OE271 (copper centre, gap 0.9 mm, M12x1.25, 14 mm hex); Beru Z379 (iridium centre, platinum earth, gap 0.7 mm, M12x1.25) |
| Genuine (OE) numbers quoted | Kamoka 7100015 is quoted against 22401-00Q0K; Kamoka 7100016 against 22 40 191 33R; Denso XE20HR-U9 against 8200662185 |
| Fitment notes | The iridium plugs at a 0.7 mm gap suit the turbocharged 0.9 and 1.0 engines, while copper or nickel plugs (Champion OE271, Beru Z243, NGK 5942) are listed at 0.9 mm. |
A Genuinely Important Reason Not to Delay: Catalytic Converter Damage — Nissan Micra Spark Plugs
This is genuinely worth acting on promptly: driving with worn spark plugs or failing ignition coils doesn't just cause a rough-running engine — unburnt fuel from a genuine misfire can pass through into the catalytic converter and damage it, turning a relatively inexpensive plug or coil fault into a considerably more expensive catalytic converter replacement if left unaddressed.
It's also worth knowing that the specific cylinder number reported in a misfire fault code isn't always fully reliable — the ECU can sometimes attribute a misfire to an adjacent cylinder rather than the one genuinely at fault.
Nissan Micra Spark Plugs: A Cheap Part That Causes Expensive-Feeling Problems
Worn spark plugs on the Nissan Micra 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.
Nissan Micra Spark Plugs: Watch: Replacing It
Shows plug location on the K14; may be a short clip rather than a full change.
Nissan Micra Spark Plugs: What They Do
The Nissan Micra'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.
Nissan Micra Spark Plugs: Generations, Engines & Spark Plug Count
| K13 (2010–2017), all petrol (1.2) | Genuinely only 3 spark plugs — even the naturally-aspirated 1.2 on this generation is a three-cylinder engine, not a four |
|---|---|
| K14 (2017–2023), all petrol (1.0, 0.9 IG-T, 1.0 IG-T, 1.0 DIG-T) | Genuinely only 3 spark plugs across every petrol variant — this generation shares its engine range with the Renault Clio IV, all of which are three-cylinder units regardless of power output badge |
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Nissan Micra 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 Nissan Spark Plugs
The same part, covered across other Nissan models.