The NGK ILKR9Q7G is the Laser Iridium spark plug specified for Hyundai and Kia vehicles with the Kappa 1.0L and 1.4L T-GDi turbocharged petrol engines. Two details catch most owners off guard when ordering: the plug count differs by engine (3-cylinder vs 4-cylinder), and every car in this fitment list has a production date cutoff — newer Creta and Seltos models have moved to a different engine and a different plug.
In short: NGK ILKR9Q7G (stock no. 97312) fits the Hyundai Venue, Aura, Grand i10 Nios (1.0 T-GDi, 3 plugs) and Hyundai Creta, Kia Seltos, Kia Carens (1.4 T-GDi, 4 plugs) — within specific production date windows. The 2024 Creta and mid-2023 onwards Seltos use the 1.5 T-GDi engine and need a different plug entirely.
Shop NGK ILKR9Q7G on AutoDecode — correct quantity for your engine, verified sourcing, pan-India delivery.
What Is the NGK ILKR9Q7G?
The ILKR9Q7G belongs to NGK's Laser Iridium series — the OEM co-developed tier engineered directly with vehicle manufacturers for specific engine applications. It features a laser-welded iridium centre electrode and a platinum disc on the ground electrode, delivering consistent ignition performance and long service life under the demanding conditions of a turbocharged direct-injection engine.
| Specification | Detail |
|---|---|
| Brand | NGK |
| Part Number | ILKR9Q7G |
| NGK Stock Number | 97312 |
| Series | Laser Iridium |
| Centre Electrode | Laser-welded iridium |
| Ground Electrode | Platinum disc |
| Thread Size | 12mm |
| Thread Reach | 26.5mm |
| Heat Range | 9 |
| Pre-Set Gap | 0.7mm |
| Country of Origin | Japan |
Heat range 9 is a cooler-running specification, appropriate for the higher cylinder pressures and combustion temperatures of a turbocharged, direct-injection engine. This is not a generic iridium plug — the heat range and gap are co-engineered with Hyundai and Kia for this specific combustion environment.
Which Cars Use the ILKR9Q7G? (With Production Date Cutoffs)
Sourced from the official NGK India 4-Wheeler Iridium Application Chart.
1.0L Kappa T-GDi — 3-Cylinder — Order 3 Plugs
| Vehicle | Production Date |
|---|---|
| Hyundai Venue 1.0 T-GDi | May 2019 – April 2021 |
| Hyundai Aura 1.0 T-GDi | January 2020 – January 2023 |
| Hyundai Grand i10 Nios 1.0 T-GDi | August 2019 – January 2023 |
1.4L Kappa T-GDi — 4-Cylinder — Order 4 Plugs
| Vehicle | Production Date |
|---|---|
| Hyundai Creta 1.4 T-GDi | March 2020 – December 2023 |
| Kia Seltos 1.4 T-GDi | August 2019 – July 2023 |
| Kia Carens 1.4 T-GDi | From 2022 |
The production date cutoffs are not minor details. The 2024 Creta and new-generation Seltos (from mid-2023) use the 1.5L T-GDi engine — a different engine with a different plug specification. The ILKR9Q7G does not apply to these vehicles.
If you are unsure which engine your car has: check the engine displacement on your registration certificate or owner's manual. A 999cc or 1.0L capacity = 3-cylinder T-GDi. A 1,353cc or 1.4L = 4-cylinder T-GDi. A 1,482cc or 1.5L = different engine, different plug.
⚠️ The Plug Count That Determines a Complete Service
This is the single most important detail in this guide.
| Vehicle | Engine | Cylinders | Plugs Needed |
|---|---|---|---|
| Hyundai Venue 1.0 T-GDi | 1.0L Kappa T-GDi | 3 | 3 |
| Hyundai Aura 1.0 T-GDi | 1.0L Kappa T-GDi | 3 | 3 |
| Hyundai Grand i10 Nios 1.0 T-GDi | 1.0L Kappa T-GDi | 3 | 3 |
| Hyundai Creta 1.4 T-GDi | 1.4L Kappa T-GDi | 4 | 4 |
| Kia Seltos 1.4 T-GDi | 1.4L Kappa T-GDi | 4 | 4 |
| Kia Carens 1.4 T-GDi | 1.4L Kappa T-GDi | 4 | 4 |
A "Set of 4" is correctly sized only for the Creta, Seltos, and Carens. Venue, Aura, and Grand i10 Nios owners buying a set of 4 are ordering one plug they do not need.
More importantly: replacing 3 plugs in a 4-cylinder Creta leaves one cylinder on a worn plug, causing a combustion imbalance that shows up immediately as rough idle or hesitation.
Why Turbo GDI Engines Need the Laser Iridium Specification
The Kappa T-GDi engines inject fuel directly into the combustion chamber at very high pressure. Direct injection engines operate at higher compression ratios and cylinder pressures than conventional port-injected engines, demanding reliable, precisely timed ignition across every combustion cycle — from cold city starts through sustained highway boost.
The ILKR9Q7G's heat range 9, 0.7mm pre-set gap, and laser-welded electrode tip match what Hyundai and Kia engineers specified for this combustion environment. A generic iridium aftermarket plug is not calibrated to these parameters.
GDI engines also have a known tendency to accumulate carbon deposits on intake valves over time — a consequence of the absence of fuel-wash from port injection. While this is primarily an intake valve issue, it reinforces that combustion quality matters more in a GDI engine. A worn or incorrect plug delivering an inconsistent spark can accelerate deposit formation. Keeping the correct plug in serviceable condition is therefore more consequential here than in a conventional MPFI engine.
When to Replace and What to Watch For
Refer to your owner's manual for the exact interval. Available service reference data for T-GDi variants in India has indicated spark plug inspection around 30,000 km, with replacement following condition assessment or the manufacturer's fixed interval.
Do not extend the interval informally because the plugs are Laser Iridium grade. Turbo engines place higher thermal stress on plugs than naturally aspirated units — the service schedule matters more here, not less.
Symptoms to watch for:
- Rough or uneven idle, especially after a cold start
- Hesitation or flat spots during acceleration, particularly from low RPM
- Turbo lag that feels worse than usual — hesitation before boost builds
- Hard starting in cool conditions
- Drop in fuel efficiency without a change in driving pattern
- Engine warning light with a misfire code (P030X series)
Important: In a turbocharged GDI engine, a misfiring plug under boost can allow unburned fuel into the exhaust, creating thermal stress on the catalytic converter and triggering secondary fault codes. Do not defer investigation of a misfire code in a T-GDi vehicle.
Always perform a diagnostic scan first. The misfire code identifies the specific cylinder, directing inspection to the relevant plug, coil, and injector rather than blanket replacement.
If plugs are due or a misfire is confirmed, find the correct NGK ILKR9Q7G quantity for your engine on AutoDecode.
Buying Genuine Parts — What to Check
The ILKR9Q7G is available through Hyundai and Kia authorised service centres as well as NGK-authorised distributors. As with all NGK products in the Indian aftermarket, counterfeits exist — and in a turbocharged GDI engine, a fake plug with inferior electrode material will fail faster and more consequentially than in a naturally aspirated car.
Signs of a genuine NGK ILKR9Q7G:
- Full part number ILKR9Q7G and stock number 97312 correctly printed on packaging
- "Made in Japan" on both plug and box
- Clear NGK Laser Iridium branding on ceramic insulator and packaging
- Consistent, precision-finished ceramic insulator with no visible irregularities
- Clean, tight-tolerance thread and metal shell
Buy from: Hyundai or Kia authorised service centres, NGK-authorised distributors, established automotive parts retailers with a verifiable supply chain, or verified online automotive platforms with genuine sourcing and clear return policies.
Avoid: Unknown marketplace sellers with no transaction history, prices significantly below the established market rate for Laser Iridium plugs, and any listing that cannot confirm both the exact part number and NGK stock number 97312.
Fitment Checklist Before You Buy
- Vehicle model confirmed (Venue / Aura / Grand i10 Nios / Creta / Seltos / Carens)
- Engine: 1.0L T-GDi or 1.4L T-GDi — not the 1.5 T-GDi, 1.2 NA, or diesel
- Production date within the applicable window for your model
- Plug quantity: 3 plugs for 1.0 T-GDi; 4 plugs for 1.4 T-GDi
- NGK part number: ILKR9Q7G
- NGK stock number: 97312
- Verified seller with return policy
- On delivery: check part number, stock number 97312, "Made in Japan" marking
- Do not re-gap — factory pre-set at 0.7mm; adjusting a Laser Iridium tip will damage it
- Use a torque wrench at installation — refer to the T-GDi service manual for cylinder head torque spec
Conclusion
The NGK ILKR9Q7G is the OEM Laser Iridium specification for the Kappa T-GDi engine family — not an upgrade, not a universal iridium plug. The heat range 9 and 0.7mm pre-set gap are specific to these turbocharged direct-injection engines.
Confirm your engine (1.0L or 1.4L T-GDi), check your production date, order the correct quantity (3 or 4), and buy from a verified source. In a turbocharged GDI engine that rewards correct maintenance with performance and longevity, these details are not optional.
Shop NGK ILKR9Q7G on AutoDecode — vehicle-specific fitment, correct quantity, genuine sourcing.
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FAQs
Q1: Which Hyundai and Kia cars use the NGK ILKR9Q7G?
The Hyundai Venue 1.0 T-GDi (May 2019 – April 2021), Aura 1.0 T-GDi (January 2020 – January 2023), Grand i10 Nios 1.0 T-GDi (August 2019 – January 2023), Creta 1.4 T-GDi (March 2020 – December 2023), Kia Seltos 1.4 T-GDi (August 2019 – July 2023), and Kia Carens 1.4 T-GDi (from 2022). All have production date cutoffs — confirm yours before ordering.
Q2: How many plugs does my car need — 3 or 4?
It depends on the engine. The 1.0L T-GDi (Venue, Aura, Grand i10 Nios) is a 3-cylinder engine — order 3 plugs. The 1.4L T-GDi (Creta, Seltos, Carens) is a 4-cylinder engine — order 4 plugs. Check your registration certificate for engine displacement if unsure.
Q3: Does the ILKR9Q7G fit the 2024 Creta or new Seltos?
No. The 2024 Creta facelift and new-generation Seltos (from mid-2023) use the 1.5L T-GDi engine, which requires a different spark plug specification. The ILKR9Q7G only applies to the 1.4L T-GDi versions within the production dates listed above.
Q4: Can I re-gap the ILKR9Q7G before fitting?
No. The plug comes factory pre-set to 0.7mm. Laser Iridium plugs must not be re-gapped with conventional tools — the precision laser-welded iridium tip will be damaged. Fit the plug as supplied.
Q5: Why does a turbo GDI engine specifically need the Laser Iridium plug?
Turbocharged direct-injection engines operate at higher cylinder pressures and combustion temperatures than naturally aspirated MPFI engines. The ILKR9Q7G is co-engineered with Hyundai and Kia for the T-GDI's specific heat range (9), electrode gap (0.7mm), and electrode geometry.
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