Hyundai i20 N 1.6 TGDi Engine Replacement - Compare Prices & Get Quotes
Get quotes today from trusted UK Hyundai i20 N 1.6 T-GDi engine specialists. Compare prices on reconditioned, rebuilt and used engines to secure a reliable, warranty-backed powertrain solution for your performance hatchback.
Supply & Fit Available
12-Month Warranty
Nationwide Delivery
100+ Suppliers
From £3,200 to £4,800 [ESTIMATED - using similar 1.6T Gamma market data as proxy]
Used from £1,500 · Reconditioned from £2,500 · Common codes: G4FJ
From £1,500
Tested, bare/short engine
From £2,500
Rod bearings addressed, tested
From quote
Upgraded bearings, full teardown, revised valvetrain
Secure enquiry - no spam, no pressure. Genuine quotes only from vetted UK Hyundai i20 N 1.6 T-GDi specialists.
3 Simple Steps3 Simple Stepsto Finding the Best Hyundai i20 N 1.6 T-GDi Replacement Engineto Finding the Best Hyundai i20 N 1.6 T-GDi Replacement Engine
Most replacements completed within 3-5 days.
Variant HistoryHyundai i20 N 1.6 T-GDi - Engine History & Specs at a Glance
Launched in 2021, the Hyundai i20 N 1.6 T-GDi brought genuine hot-hatch performance to the i20 lineup, utilising the highly tuned Gamma 1.6-litre turbocharged engine to deliver 204hp (or 280hp with N Grin Boost overboost) and track-focused dynamics.
Variant HistoryHyundai i20 N 1.6 T-GDi - Engine History & Specs at a Glance
Launched in 2021, the Hyundai i20 N 1.6 T-GDi brought genuine hot-hatch performance to the i20 lineup, utilising the highly tuned Gamma 1.6-litre turbocharged engine to deliver 204hp (or 280hp with N Grin Boost overboost) and track-focused dynamics.
Hyundai i20 N 1.6 T-GDi
Fuel TypePetrol
Engine Size Range1.6L (1598cc)
Power Output Range204hp (280hp with N Grin Boost)Engine History Timeline
G4FJ engine code introduced 1.6L, 204hp (280hp with NGB) (Replaced smaller turbo units, featuring a larger turbocharger, upgraded intercooler, and performance-tuned internals specifically for the i20 N).
Present - Continued production with refined ECU mapping and enhanced thermal management systems to manage the extreme output of the turbocharged inline-four in demanding track and road conditions.
Key Specs Snapshot
Fuel TypePetrolEngine Size Range1.6L (1598cc)Power Output Range204hp (280hp with N Grin Boost)Years Produced2021-presentEvery engine fitted to the Hyundai i20 N 1.6 T-GDi is covered below, with UK rebuilt pricing and known failure points.
Hyundai i20 N 1.6 T-GDi Engine Codes - Specifications & Replacement CostHyundai i20 N 1.6 T-GDi Engine Codes - Specifications & Replacement Cost
1.6L Petrol (2021-present)
Power Output204hp (280hp with N Grin Boost)Years Fitted2021-present
Compatible Trim Levels
- i20 N
- i20 N Performance
Find your exact engine code, specs and UK replacement cost guide.
Used
Tested, ready-to-fit engine
£1,500-£2,500
Reconditioned
Addressed known issues, tested
£2,500-£3,800
Rebuilt
Full teardown, upgraded internals
£3,200-£4,800
Common Failure
High-stress track use and aggressive driving accelerating turbocharger wear, oil consumption, or carbon buildup on intake valves, typically occurring between 40,000 and 80,000 miles if not meticulously maintained.
The Hyundai i20 N 1.6 T-GDi is a robust performance engine, but its high-output Gamma architecture is subject to extreme thermal and mechanical loads. Rebuilt engines sourced through EnginesMarket include upgraded components addressing these original failure points, backed by a minimum 12-month unlimited mileage warranty.
Why the Hyundai i20 N 1.6 T-GDi G4FJ Wears Prematurely
Affected Vehicles
Hyundai i20 N 1.6 T-GDi (G4FJ, 2021-present)
Typical Failure Mileage
40,000-80,000 miles
Root Cause
Aggressive driving, frequent track use, and high boost pressures accelerate turbocharger bearing wear. Combined with direct injection, this can lead to oil consumption and carbon buildup on intake valves if maintenance intervals are extended.
Why It Happens
Aggressive driving, frequent track use, and high boost pressures accelerate turbocharger bearing wear. Combined with direct injection, this can lead to oil consumption and carbon buildup on intake valves if maintenance intervals are extended.
Dealer (parts + labour)
£800-£1,500
Specialist (parts + labour)
£500-£900
What it involves
Turbo inspection, carbon cleaning (walnut blasting), and strict oil change intervals
Suitability
Suitable for early-stage symptoms without internal mechanical damage
1 - 2 daysDealer (parts + labour)
£5,500-£7,500
Specialist (parts + labour)
£3,200-£4,800
What it involves
Supply & fit rebuilt unit with upgraded turbo feed lines, revised piston rings, and 12-month warranty
Suitability
The definitive solution for catastrophic turbo failure sending debris into the block or severe oil starvation
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/Preventative Minor | £800-£1,500 | £500-£900 | Turbo inspection, carbon cleaning (walnut blasting), and strict oil change intervals | Suitable for early-stage symptoms without internal mechanical damage | 1 - 2 days |
 Full Replacement - rebuilt/reconditioned engine Best Value | £5,500-£7,500 | £3,200-£4,800 | Supply & fit rebuilt unit with upgraded turbo feed lines, revised piston rings, and 12-month warranty | The definitive solution for catastrophic turbo failure sending debris into the block or severe oil starvation | 1 - 2 days |
Vehicle Value Check
Vehicle Value Check
A typical Hyundai i20 N 1.6 T-GDi in good condition currently holds a UK market value of approximately £18,000 to £25,000+ [THIRD-PARTY], depending on mileage, specification, and model year. - Vehicle worth under ~£5,000: repair or used engine typically makes more sense than a full rebuilt unit. - Vehicle worth ~£5,000-£8,000: evaluate both; reconditioned is viable if keeping the car 2+ years. - Vehicle worth ~£8,000-£15,000: reconditioned/rebuilt usually justifies the premium via warranty and reliability. - Vehicle worth £15,000+: replacement cost is typically small relative to vehicle value. Given the premium retained value of the i20 N, a rebuilt or reconditioned engine is a financially sound investment that protects the vehicle's strong asset value.
Our Recommendation
Our Recommendation
If your i20 N is exhibiting minor oil consumption or boost irregularities, targeted maintenance and strict adherence to short service intervals is highly cost-effective. However, if the engine has suffered from prolonged oil starvation or catastrophic turbo failure, a full rebuilt unit is the only reliable long-term solution to protect your investment.
Don't Let Engine Failure Write Off Your Hyundai i20 N 1.6 T-GDi
Protect your performance hatchback investment by comparing quotes from vetted UK specialists. Every replacement engine sourced through our network features upgraded components to resolve known G4FJ weaknesses, backed by a minimum 12-month unlimited mileage warranty and nationwide delivery options. Avoid main dealer premiums and secure a reliable, cost-effective solution today.
Compare rebuilt G4FJ Hyundai i20 N 1.6 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 i20 N 1.6 T-GDi. Every engine supplied through EnginesMarket carries a minimum 12-month unlimited mileage warranty - always confirm exact terms with your chosen supplier."
Hyundai i20 N 1.6 T-GDi Engine ReplacementFrequently Asked Questions
Question 1How much does a Hyundai i20 N 1.6 T-GDi engine replacement cost-
A full rebuilt Hyundai i20 N 1.6 T-GDi engine typically costs between £3,200 and £4,800 for supply only. Reconditioned units start around £2,500, while used engines can be found from £1,500. Prices vary based on whether you choose supply-only or a full supply and fit service.
- Rebuilt engines include upgraded turbo feed lines and revised piston rings.
- Supply and fit adds approximately £650-£910 in specialist labour.
- All rebuilt options include a 12-month unlimited mileage warranty.
Question 2What are the signs of turbo or engine failure in a Hyundai i20 N-
Early warning signs include excessive oil consumption, blue smoke from the exhaust under heavy acceleration, and a noticeable loss of boost pressure or turbo lag. You might also hear unusual whining or rattling noises from the turbocharger area.
- Monitor your oil level closely, especially after track days.
- Address check engine lights or boost-related fault codes immediately.
- Persistent knocking or rattling requires immediate professional diagnosis.
Question 3Is it worth replacing the engine in a Hyundai i20 N-
Yes, given the current performance car market. A well-maintained Hyundai i20 N holds a value of £18,000 to £25,000+. Investing £3,200-£4,800 in a rebuilt engine with a 12-month warranty is financially viable and protects the appreciating asset value of this sought-after hot hatch.
- Rebuilt engines resolve known high-stress Gamma design vulnerabilities.
- Warranty coverage provides long-term peace of mind for track-focused use.
- Preserves the vehicle's premium status and resale value.
Question 4What is the G4FJ engine code in the Hyundai i20 N-
The G4FJ is the specific 1.6-litre four-cylinder turbocharged Gamma engine code fitted to the Hyundai i20 N (producing 204hp, or 280hp with N Grin Boost). It features a larger turbocharger, upgraded intercooler, and performance-tuned internals compared to standard Gamma units.
- Produces 204hp (280hp NGB) and 275Nm (353Nm NGB) of torque.
- Shares core architecture with other Hyundai N performance models.
- Requires strict adherence to high-performance oil specifications and frequent changes.
Question 5How long does a Hyundai i20 N 1.6 T-GDi engine replacement take-
A professional supply and fit service for a Hyundai i20 N 1.6 T-GDi typically takes 2 to 3 working days. This includes the removal of the old unit, thorough cleaning of the engine bay, installation of the replacement engine, and comprehensive ECU coding.
- Nationwide delivery of the engine usually takes 1-2 days.
- Specialist workshops handle the full installation and performance calibration.
- Road testing and fluid checks are completed before handover.
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