Hyundai i30 N 2.0 TGDi Engine Replacement - Compare Prices & Get Quotes
Get quotes today from trusted UK Hyundai i30 N 2.0 T-GDi engine specialists. Compare prices on reconditioned, rebuilt and used engines to find the best deal for your high-performance hot hatch.
Supply & Fit Available
12-Month Warranty
Nationwide Delivery
100+ Suppliers
From £2,500 to £4,000 [EM-QUOTE]
Used from £1,000 · Reconditioned from £1,800 · Common codes: G4KJ
From £1,000
Tested, bare/short engine
From £1,800
Rod bearings addressed, tested
From quote
Upgraded bearings, full teardown, revised valvetrain
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3 Simple Steps3 Simple Stepsto Finding the Best Hyundai i30 N 2.0 T-GDi Replacement Engineto Finding the Best Hyundai i30 N 2.0 T-GDi Replacement Engine
Most replacements completed within 3-5 days.
Variant HistoryHyundai i30 N 2.0 T-GDi - Engine History & Specs at a Glance
When the Hyundai i30 N launched, the 2.0 T-GDi badge marked the pinnacle of the i30 range, bringing a purpose-built, high-output turbocharged inline-4 engine designed for track-focused performance and daily drivability.
Variant HistoryHyundai i30 N 2.0 T-GDi - Engine History & Specs at a Glance
When the Hyundai i30 N launched, the 2.0 T-GDi badge marked the pinnacle of the i30 range, bringing a purpose-built, high-output turbocharged inline-4 engine designed for track-focused performance and daily drivability.
Hyundai i30 N 2.0 T-GDi
Fuel TypePetrol
Engine Size Range2.0L (1,998 cc)
Power Output Range275-280 hpEngine History Timeline
Introduction of the G4KJ 2.0L T-GDi engine (275 hp / 353 Nm) in the first-generation (PDe) i30 N featuring a twin-scroll turbocharger and an electronically controlled wastegate.
Power output increased to 280 hp (CN7 generation) with revised engine mapping a larger turbocharger, and an integrated electronic limited-slip differential (e-LSD) for enhanced track performance.
Key Specs Snapshot
Fuel TypePetrolEngine Size Range2.0L (1,998 cc)Power Output Range275-280 hpYears Produced2017-presentEvery engine fitted to the Hyundai i30 N 2.0 T-GDi is covered below, with UK rebuilt pricing and known failure points.
Hyundai i30 N 2.0 T-GDi Engine Codes - Specifications & Replacement CostHyundai i30 N 2.0 T-GDi Engine Codes - Specifications & Replacement Cost
2.0L Turbocharged Petrol (2017-present)
Power Output275-280 hpYears Fitted2017-present
Compatible Trim Levels
- i30 N
- i30 N Performance
Find your exact engine code, specs and UK replacement cost guide.
Used
Tested, ready-to-fit engine
£1,000-£2,000 [EM-QUOTE]
Reconditioned
Addressed known issues, tested
£1,800-£3,000 [EM-QUOTE]
Rebuilt
Full teardown, upgraded internals
£2,500-£4,000 [EM-QUOTE]
Common Failure
High-performance driving can accelerate turbocharger wear, carbon buildup on intake valves, and occasional oil consumption at higher mileages, typically emerging after 60,000-100,000 miles [THIRD-PARTY - Parkers / Hyundai specialist forums].
The 2.0-litre T-GDi (G4KJ) in the Hyundai i30 N is a robust, purpose-built performance engine. However, aggressive driving and track use can accelerate wear on the turbocharger, carbon accumulation, and valvetrain components. Rebuilt engines through EnginesMarket include upgraded internal components designed to address these original failure points, plus a minimum 12-month unlimited mileage warranty.
Why the Hyundai i30 N 2.0 T-GDi G4KJ Requires Attention
Affected Vehicles
Hyundai i30 N 2.0 T-GDi (G4KJ, 2017-present)
Typical Failure Mileage
60,000-100,000 miles
Root Cause
Sustained high-RPM use and track days increase thermal stress on the turbocharger bearings and piston rings, potentially leading to increased oil consumption or turbo lag over time.
Why It Happens
Sustained high-RPM use and track days increase thermal stress on the turbocharger bearings and piston rings, potentially leading to increased oil consumption or turbo lag over time.
Dealer (parts + labour)
£800-£1,200
Specialist (parts + labour)
£500-£800
What it involves
Walnut blasting intake, turbo health check, and PCV valve replacement.
Suitability
Suitable for mild oil consumption or lag, but does not fix worn rings or scored bores.
1 - 2 daysDealer (parts + labour)
£3,500-£5,000
Specialist (parts + labour)
£2,500-£4,000 [EM-QUOTE]
What it involves
Supply & fit, upgraded turbo and piston rings, bench tested, 12-month warranty.
Suitability
Permanent resolution of wear. Restores factory performance and eliminates ongoing oil consumption.
1 - 2 daysAll prices are indicative UK market ranges based on current UK specialist supplier data.| Repair Tier | Dealer (Parts + Labour) | Specialist (Parts + Labour) | What It Involves | Suitability | Estimated Time |
|---|---|---|---|---|---|
 Minor - Turbo Health Check & Carbon Clean Minor | £800-£1,200 | £500-£800 | Walnut blasting intake, turbo health check, and PCV valve replacement. | Suitable for mild oil consumption or lag, but does not fix worn rings or scored bores. | 1 - 2 days |
 Full Replacement - rebuilt/reconditioned engine Best Value | £3,500-£5,000 | £2,500-£4,000 [EM-QUOTE] | Supply & fit, upgraded turbo and piston rings, bench tested, 12-month warranty. | Permanent resolution of wear. Restores factory performance and eliminates ongoing oil consumption. | 1 - 2 days |
Vehicle Value Check
Vehicle Value Check
A typical Hyundai i30 N 2.0 T-GDi of relevant age (2017-present) currently holds a UK market value of approximately £15,000-£25,000+ [THIRD-PARTY - Auto Trader market observations]. At this premium value band, a reconditioned or rebuilt engine replacement is a small fraction of the vehicle's worth and easily justifies the investment to preserve performance and resale value.
Our Recommendation
Our Recommendation
If your i30 N is showing minor oil consumption or turbo lag but still runs cleanly, a specialist turbo health check and carbon clean is the most cost-effective route. However, if the engine has suffered bearing wear or excessive oil burning, a full rebuilt replacement is the only reliable long-term solution to restore factory performance.
Don't Let Engine Failure Write Off Your Hyundai i30 N 2.0 T-GDi
Whether it is turbo wear or carbon buildup, addressing issues early keeps your i30 N track-ready and protects its strong resale value. If replacement is necessary, EnginesMarket connects you with vetted specialists offering rebuilt G4KJ engines with upgraded components, a minimum 12-month unlimited mileage warranty and nationwide delivery - saving you from main dealer premiums.
Compare rebuilt G4KJ Hyundai i30 N 2.0 T-GDi engine prices
12-Month Minimum
UK Specialists Vetted
Best Price GuidanceImportant Information
Important Information
"All prices are indicative UK market ranges based on historical quote data and repair requests from our network of engine specialists. Dealer pricing is estimated based on published main dealer labour rates and genuine OEM parts pricing. Specialist pricing reflects actual quote data from EnginesMarket's UK network. Actual costs vary depending on damage severity, vehicle condition, variant, and workshop location within the UK. Use our free comparison tool to get tailored quotes for your specific Hyundai i30 N 2.0 T-GDi. Every engine supplied through EnginesMarket carries a minimum 12-month unlimited mileage warranty - always confirm exact terms with your chosen supplier."
Hyundai i30 N 2.0 T-GDi Engine ReplacementFrequently Asked Questions
Question 1How much does a Hyundai i30 N 2.0 T-GDi engine replacement cost-
A full rebuilt or reconditioned engine replacement for a Hyundai i30 N 2.0 T-GDi typically ranges from £2,500 to £4,000 for supply only, depending on the specialist and the extent of performance upgrades included. Used engines start around £1,000 but carry higher risk, while rebuilt units include upgraded components and a 12-month warranty.
- Rebuilt G4KJ units range £2,500-£4,000 supply-only.
- Professional supply & fit labour typically adds £455-£585.
- 12-month unlimited mileage warranty standard on rebuilt units from EngineMarket network.
Question 2What are the signs of a failing G4KJ engine in a Hyundai i30 N 2.0 T-GDi-
The most common early warning signs in the Hyundai i30 N 2.0 T-GDi are increased oil consumption between services, noticeable turbo lag or whining noises, and occasional misfires under heavy load. You should also watch for illuminated engine management lights or blue exhaust smoke.
- Rising oil consumption indicates ring or turbo seal wear.
- Turbo whine or lag suggests bearing wear.
- Misfires under boost can point to carbon buildup or injector issues.
Question 3Is it worth replacing the engine in a Hyundai i30 N 2.0 T-GDi-
Yes. A well-maintained Hyundai i30 N 2.0 T-GDi holds a UK market value of £15,000-£25,000+, making a £2,500-£4,000 rebuilt engine a financially sound investment that preserves the vehicle's performance, track capability, and strong resale value for years to come.
- Replacement cost is a fraction of the vehicle's value.
- Upgraded components in rebuilt units address original wear points.
- Cheaper than purchasing a newer performance hatchback.
Question 4How long does a Hyundai i30 N 2.0 T-GDi engine replacement take-
A professional supply and fit service for a Hyundai i30 N 2.0 T-GDi typically takes 2 to 4 days, depending on the specialist's workload and whether any ancillary components like the turbo or cooling system are being upgraded simultaneously. Sourcing a quality rebuilt unit may add a few days.
- Standard lead time: 3-5 days for engine delivery + 2-3 days for fitting.
- ECU coding and break-in procedures included in specialist fitting packages.
Question 5Can I fit a standard i30 engine in my i30 N 2.0 T-GDi-
No. The i30 N G4KJ engine features specific internal components, a larger turbocharger, revised pistons, and unique ECU mapping compared to standard i30 engines. Attempting to fit a non-N engine will result in severe performance loss and compatibility issues.
- G4KJ is unique to the N and N Performance variants.
- Internal forgings and turbo setup differ significantly from standard 1.4T or 2.0 MPI units.
- Always verify the engine code matches your variant.
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