3 Simple Steps3 Simple Stepsto Finding the Best Replacement Engineto Finding the Best Replacement Engine
Most replacements completed within 3-5 days.
Variant HistoryToyota GR Yaris - Launch to Present
Variant HistoryToyota GR Yaris - Launch to Present
Toyota GR Yaris
Engine History Timeline
Key Specs Snapshot
Toyota GR Yaris - Every Engine Code, PricedToyota GR Yaris - Every Engine Code, Priced
1.6L Turbocharged 3-Cylinder Petrol (2020-present)
Find your exact engine code, specs and UK replacement cost guide.
Common Failure
*TAG: * Common Problems *H2: * Toyota GR Yaris Engine Problems - Repair Cost vs Replacement *H3 (intro): * The Toyota GR Yaris G16E-GTS engine is a masterpiece of compact performance engineering - a bespoke 1.6-litre turbocharged three-cylinder that punches well above its weight. However, it's also a highly stressed engine pushing over 170bhp per litre, and track use, aggressive tuning, or missed maintenance can push it beyond its limits. Rebuilt engines through EnginesMarket include upgraded components addressing the original failure points, plus a minimum 12-month unlimited-mileage warranty.
Why the Toyota GR Yaris G16E-GTS Engine Can Suffer Catastrophic Damage
Affected Vehicles
Toyota GR Yaris (G16E-GTS, 2020-present)
Typical Failure Mileage
35,000-75,000 miles (higher risk with track use or tuning)
Root Cause
The G16E-GTS's pistons appear to be one of the engine's less robust components. Catastrophic failures - where a piston separates from the connecting rod and punches holes through the engine block - have been documented. These failures are typically associated with aggressive tuning, oil or fuel starvation, or sustained track use at the limit. Toyota revised the pistons for the Gen 2 GR Yaris (part number 13101-18040) and further revisions followed for later GR Corolla models.
Why It Happens
The G16E-GTS's pistons appear to be one of the engine's less robust components. Catastrophic failures - where a piston separates from the connecting rod and punches holes through the engine block - have been documented. These failures are typically associated with aggressive tuning, oil or fuel starvation, or sustained track use at the limit. Toyota revised the pistons for the Gen 2 GR Yaris (part number 13101-18040) and further revisions followed for later GR Corolla models.
Dealer (parts + labour)
£9,000-£14,000
Specialist (parts + labour)
£5,995-£10,995 (supply) + £2,148 fitting
What it involves
Supply & fit, upgraded components addressing the original failure point, 12-month warranty
Suitability
When internal damage has occurred; often the most cost-effective route for a high-performance engine
1 - 2 daysDealer (parts + labour)
£6,000-£9,000
Specialist (parts + labour)
£3,500-£6,000
What it involves
Replace bottom-end only; reuse cylinder head if undamaged
Suitability
If head is salvageable and failure is confined to bottom-end
1 - 2 days
All 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 |
|---|---|---|---|---|---|
 Full replacement - rebuilt engine Minor | £9,000-£14,000 | £5,995-£10,995 (supply) + £2,148 fitting | Supply & fit, upgraded components addressing the original failure point, 12-month warranty | When internal damage has occurred; often the most cost-effective route for a high-performance engine | 1 - 2 days |
 Short block replacement Best Value | £6,000-£9,000 | £3,500-£6,000 | Replace bottom-end only; reuse cylinder head if undamaged | If head is salvageable and failure is confined to bottom-end | 1 - 2 days |
Don't Let Engine Failure Write Off Your Toyota GR Yaris
The G16E-GTS is a remarkable engine - but it's also a highly stressed performance unit that demands respect. Whether you need a boost solenoid replacement, a water pump, or a full rebuilt G16E-GTS engine with upgraded pistons, EnginesMarket connects you with vetted UK specialists offering competitive pricing, nationwide delivery, and a minimum 12-month warranty on every rebuilt unit.
Important Information
Important Information
Toyota GR YarisFrequently Asked Questions
Question 1How much does a Toyota GR Yaris engine replacement cost in the UK-
A Toyota GR Yaris G16E-GTS engine replacement typically costs £3,500-£5,500 for a used unit, £5,995-£8,500 for a reconditioned engine, and £5,995-£10,995 for a fully rebuilt unit (supply only). Fitting adds approximately £2,148 in labour (20 hours at specialist rates). Total fitted cost for a rebuilt engine typically ranges from £8,143 to £13,143.
- Used G16E-GTS from £3,500 - lower cost, unknown provenance
- Reconditioned G16E-GTS from £5,995 - tested and warrantied
- Rebuilt G16E-GTS from £5,995 - like-new with 12-month warranty
Question 2What are the signs of G16E-GTS engine failure in a Toyota GR Yaris-
Common warning signs include sudden loss of power (boost solenoid failure), coolant loss or overheating (water pump or cooling system issues), unusual knocking noises (potential piston or bearing failure), and misfiring or rough running.
- Sudden power loss - boost solenoid failure
- Coolant loss or overheating - water pump or cooling system leak
- Knocking or rattle - potential piston or bottom-end damage
- Misfiring - could indicate injector or ignition issues
Question 3Is it worth replacing the engine in a Toyota GR Yaris-
For a Toyota GR Yaris worth £26,500-£61,750, a rebuilt G16E-GTS engine (£5,995-£10,995 supply) is almost always a sound investment. The GR Yaris is a modern classic-in-the-making, and the engine is central to its value and character. A quality rebuilt unit with upgraded components and warranty offers better long-term value than scrapping the car.
- Vehicle worth £26,500+ - replacement is a sound investment
- Rebuilt engine with warranty - better than unknown used unit
- GR Yaris values remain strong - replacement preserves value
Question 4How long does a Toyota GR Yaris engine replacement take-
A Toyota GR Yaris G16E-GTS engine replacement typically takes 18-22 hours for a specialist workshop. Supply-only delivery takes 1-2 days, and supply & fit typically requires 3-5 working days total, depending on workshop availability.
- Supply only: 1-2 days for delivery
- Supply & fit: 3-5 working days total
- Specialist workshops only - this isn't a job for a generalist
Question 5Is the Toyota GR Yaris G16E-GTS engine reliable-
The G16E-GTS is generally reliable in standard form when properly maintained. However, it's a highly stressed engine - producing over 170bhp per litre - and track use or aggressive tuning can push it beyond its limits. Common issues include boost solenoid failure (cheap fix), water pump leaks, and - in extreme cases - piston failure. Toyota revised pistons for the Gen 2 model.
- Stock form with proper maintenance: solid reliability
- Track use or tuning: increased risk of failure
- Piston revision in Gen 2 suggests Toyota addressed a known weak point
Question 6What's the difference between Gen 1 and Gen 2 GR Yaris engines-
The Gen 2 G16E-GTS (2024 onwards) produces 276bhp (up from 257bhp) and 288lb ft of torque. It features a stronger valvetrain, new exhaust valve material, increased fuel injection pressure and stronger pistons. The cooling system was also upgraded with an additional sub-radiator and an intercooler water spray system. Toyota revised the piston part number for Gen 2 (13101-18040).
- Gen 1 (2020-2023): 257bhp, 360Nm
- Gen 2 (2024-present): 276bhp, 288lb ft
- Gen 2: stronger internals, improved cooling, available with 8-speed auto
Why Choose UsToyota GR Yaris - Closing Conversion Block
Enter your registration
and get matched with verified specialists.