Spark plugs Nissan X-Trail T31 MR20DE (2.0) — NGK, Bosch, Denso
Spark plugs for Nissan X-Trail T31 MR20DE (2.0L, 2007–2013) — OEM-spec NGK, Bosch, Denso and Champion part numbers with replacement interval.
Engine Specifications
| Parameter | Value |
|---|---|
| Make / Model | Nissan X-Trail T31 |
| Engine Code | MR20DE |
| Displacement / Fuel | 2.0L petrol |
| Production Years | 2007–2013 |
| Plug type | iridium |
| Thread | M14x1.25 |
| Reach | 19 mm |
| Hex size | 16 mm |
| Electrode gap | 1.1 mm |
| Heat range | 5 |
Compatible Spark Plugs
| Brand | Part Number | Type |
|---|---|---|
| NGK | NGK LFR5AIX | OE supplier |
| Bosch | Bosch 0242236561 | OE supplier |
| Denso | Denso SK20R11 | OE supplier |
| Champion | Champion ILG49 | aftermarket |
Replacement Interval
| Parameter | Value |
|---|---|
| Mileage | 60 000 km |
| Time | 4 years |
Iridium and platinum plugs last 2–3× longer than standard copper plugs. Replace them on schedule — worn plugs increase fuel consumption by 3–5% and reduce power output.
Choosing Spark Plugs for MR20DE
- Use the correct plug type — the MR20DE requires iridium plugs. Upgrading from standard to iridium is acceptable.
- Check the electrode gap — verify the gap is 1.1 mm before installation.
- Torque correctly — for M14x1.25 thread: aluminium head 20–25 Nm, cast iron head 25–30 Nm.
- Replace as a full set — always replace all cylinders at once to ensure even combustion across all cylinders.
FAQ
Which spark plugs fit Nissan X-Trail T31 MR20DE?
NGK NGK LFR5AIX, Bosch Bosch 0242236561, Denso Denso SK20R11. All three are OE suppliers and guarantee compatibility with this engine.
How often should spark plugs be replaced on Nissan X-Trail T31?
Every 60 000 km or 4 years, whichever comes first. Iridium plugs (NGK LFR5AIX) have a longer service life compared to standard nickel plugs.
Can I fit a different type of spark plug in the MR20DE?
Upgrading to iridium or platinum is acceptable and gives a slight improvement in cold starts. Do not change the heat range (5) — an incorrect heat range can cause pre-ignition or fouling.
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