Hyundai i20 N Specialists

Hyundai i20 N 1.6 T-GDi 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.

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Hyundai i20 N 1.6 T-GDi Engine

from£3,200 to £4,800...

Usedfrom £1,500
Reconditionedfrom £2,500
Common codesG4FJ

Hyundai i20 N 1.6 T-GDi Used Engine — G4FJ

Hyundai i20Used Engine — G4FJ

Hyundai i20 N 1.6 T-GDi Reconditioned Engine — G4FJ

Hyundai i20Reconditioned Engine — G4FJ

Hyundai i20 N 1.6 T-GDi Rebuilt Engine — G4FJ

Hyundai i20Rebuilt Engine — G4FJ

Instant QuotesNo Obligation100% FreeReconditionedRebuiltUsedSupply & Fit AvailableUK-Wide NetworkInstant QuotesNo Obligation100% FreeReconditionedRebuiltUsedSupply & Fit AvailableUK-Wide NetworkInstant QuotesNo Obligation100% FreeReconditionedRebuiltUsedSupply & Fit AvailableUK-Wide NetworkInstant QuotesNo Obligation100% FreeReconditionedRebuiltUsedSupply & Fit AvailableUK-Wide Network

How it works

3 Simple Steps to Finding the Right Replacement Engine

Clear information first, then the right engine and specialist for your exact vehicle.

Variant History

Hyundai 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.

2021
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).
2021
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.

Every engine fitted to the Hyundai i20 N 1.6 T-GDi is covered below, with UK rebuilt pricing and known failure points.

Engine Codes & Pricing

Hyundai i20 N 1.6 T-GDi Engine Codes Specifications & Replacement Cost

Find your exact engine code, specs and UK replacement cost guide.

G4FJ — 1.6L Petrol (2021-present)

Power Output: 204hp (280hp with N Grin Boost)
Years Fitted: 2021-present

Can’t find your exact engine code?-> Get quotes for G4FJ Hyundai i20 N 1.6 T-GDi engine replacement

-> Get quotes for G4FJ Hyundai i20 N 1.6 T-GDi engine replacement

Common failure points and repair options

Turbocharger Wear & Oil Consumption

Affected: 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.

Repair options

Repair tier	Dealer price	Specialist price
Minor/Preventative	£800-£1,500	£500-£900
Full Replacement - rebuilt/reconditioned engine	£5,500-£7,500	£3,200-£4,800

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.

-> Compare rebuilt G4FJ Hyundai i20 N 1.6 T-GDi engine prices

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.

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FAQ

Hyundai i20 N 1.6 T-GDi Engine ReplacementFrequently Asked Questions

Everything Hyundai i20 N 1.6 T-GDi owners usually ask before choosing a rebuilt, reconditioned or used replacement engine.

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.

-> Compare Hyundai i20 N 1.6 T-GDi engine replacement prices today.

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.

-> Get quotes for a rebuilt Hyundai i20 N 1.6 T-GDi engine if symptoms persist.

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.

-> Check your Hyundai i20 N 1.6 T-GDi registration for an instant quote.

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.

-> Compare quotes for your specific Hyundai i20 N 1.6 T-GDi engine code.

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.

-> Book your Hyundai i20 N 1.6 T-GDi supply and fit appointment today.

Why Choose Us

Compare Hyundai i20 N 1.6 T-GDi Engine Prices Today

Comparing quotes is completely free and carries no obligation. By entering your registration, you ensure that every quote you receive is tailored specifically to your Hyundai i20 N 1.6 T-GDi and its exact G4FJ engine code, connecting you directly with vetted UK specialists who hold the right parts in stock.

500+500+ Hyundai i20 N 1.6 T-GDi engines supplied through our network

12-Month12-Month Warranty on every rebuilt Hyundai i20 N 1.6 T-GDi engine

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Compare quotes from trusted UK Hyundai i20 N 1.6 T-GDi engine specialists with warranty-backed rebuilt, reconditioned and used options nationwide.