Spark plugs Hyundai i30 FD G4FC (1.6 GDi) — NGK, Bosch, Denso
Spark plugs for Hyundai i30 FD G4FC (1.6 GDiL, 2007–2012) — OEM-spec NGK, Bosch, Denso and Champion part numbers with replacement interval.
Engine Specifications
| Parameter | Value |
|---|---|
| Make / Model | Hyundai i30 FD |
| Engine Code | G4FC |
| Displacement / Fuel | 1.6 GDiL petrol |
| Production Years | 2007–2012 |
| Plug type | iridium |
| Thread | M14x1.25 |
| Reach | 19 mm |
| Hex size | 16 mm |
| Electrode gap | 0.9 mm |
| Heat range | 6 |
Compatible Spark Plugs
| Brand | Part Number | Type |
|---|---|---|
| NGK | NGK ILFR5A-11 | OE supplier |
| Bosch | Bosch 0242236570 | OE supplier |
| Denso | Denso SK16HR11 | OE supplier |
| Champion | Champion RC10PYP4 | 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 G4FC
- Use the correct plug type — the G4FC requires iridium plugs. Upgrading from standard to iridium is acceptable.
- Check the electrode gap — verify the gap is 0.9 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 Hyundai i30 FD G4FC?
NGK NGK ILFR5A-11, Bosch Bosch 0242236570, Denso Denso SK16HR11. All three are OE suppliers and guarantee compatibility with this engine.
How often should spark plugs be replaced on Hyundai i30 FD?
Every 60 000 km or 4 years, whichever comes first. Iridium plugs (NGK ILFR5A-11) have a longer service life compared to standard nickel plugs.
Can I fit a different type of spark plug in the G4FC?
Upgrading to iridium or platinum is acceptable and gives a slight improvement in cold starts. Do not change the heat range (6) — an incorrect heat range can cause pre-ignition or fouling.
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