Ford Focus ST 2.0 / 2.3 EcoBoost Specialists

Ford Focus ST 2.0 / 2.3 EcoBoost Engine Replacement Compare Prices & Get Quotes

Get quotes today from trusted UK Ford Focus ST 2.0 / 2.3 EcoBoost engine specialists. Compare prices on reconditioned, rebuilt and used engines to find the most cost-effective, high-performance solution for your vehicle.

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Ford Focus ST 2.0 / 2.3 EcoBoost Engine

from£2,500 to £5,500...

Usedfrom £1,500
Reconditionedfrom £2,500
Common codesR9DA, R9DC, N3DA

Ford focus ST 2.0 / 2.3 EcoBoost Used Engine — R9DA / R9DC

Ford focusUsed Engine — R9DA / R9DC

Ford focus ST 2.0 / 2.3 EcoBoost Reconditioned Engine — R9DA / R9DC

Ford focusReconditioned Engine — R9DA / R9DC

Ford focus ST 2.0 / 2.3 EcoBoost Rebuilt Engine — R9DA / R9DC

Ford focusRebuilt Engine — R9DA / R9DC

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

Ford Focus ST 2.0 / 2.3 EcoBoost Engine History & Specs at a Glance

When the modern EcoBoost era of the Focus ST launched, it served as the high-performance hot hatch flagship of the Ford Focus range. Over its production run, Ford transitioned from the punchy 2.0L inline-4 to the larger-displacement 2.3L inline-4 to meet higher power demands and evolving emissions standards.

2012
R9DA / R9DC introduced, 2.0L EcoBoost, 250hp (184kW), replacing the previous generation's 5-cylinder turbo, featuring a twin-scroll turbocharger and overboost function.
2019
N3DA introduced for the Mk4 Focus ST, 2.3L EcoBoost, 280hp (206kW), borrowing core architecture from the Focus RS to provide increased torque, improved thermal management, and a standard electronic limited-slip differential.

Every engine fitted to the Ford Focus ST 2.0 / 2.3 EcoBoost is covered below, with UK rebuilt pricing and known failure points.

Engine Codes & Pricing

Ford Focus ST 2.0 / 2.3 EcoBoost Engine Codes Specifications & Replacement Cost

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

R9DA / R9DC — 2.0L Petrol (2012-2018)

Power Output: 250hp (184kW)
Years Fitted: 2012-2018

Can’t find your exact engine code?-> Get quotes for R9DA Ford Focus ST 2.0 / 2.3 EcoBoost engine replacement

-> Get quotes for R9DA Ford Focus ST 2.0 / 2.3 EcoBoost engine replacement

Common Problems

Ford Focus ST 2.0 / 2.3 EcoBoost Engine Problems Repair Cost vs Replacement

The Ford Focus ST 2.0 / 2.3 EcoBoost is a highly tunable, performance-oriented engine, but its high specific output makes it susceptible to specific stress-related failures. The R9DA, R9DC, and N3DA codes dominate replacement demand for this variant. Rebuilt engines through EnginesMarket include upgraded forged components addressing these original failure points, plus a minimum 12-month unlimited-mileage warranty.

Common failure points and repair options

Piston Ringland Cracking

Affected: Ford Focus ST 2.0 / 2.3 EcoBoost (R9DA, R9DC, 2012-2018)
Typical failure mileage: 40,000-80,000 miles

Root cause

Aggressive ECU remapping, poor fuel quality, or inadequate intercooling can cause pre-ignition (knock). This creates extreme cylinder pressures that crack the piston ringlands, leading to catastrophic loss of compression and oil contamination.

Repair options

Repair tier	Dealer price	Specialist price
Short Block Replacement	£4,000-£6,000	£2,500-£3,500
Full Replacement - rebuilt/reconditioned engine	£5,500-£7,500	£3,500-£5,000

Our recommendation

If the vehicle is heavily modified, a full rebuilt engine with forged internals is the only reliable long-term solution. For standard cars with isolated damage, a specialist short-block replacement may suffice, but a full rebuild offers superior warranty protection.

-> Compare rebuilt R9DA Ford Focus ST 2.0 / 2.3 EcoBoost engine prices

Carbon Buildup & HPFP Wear

Affected: Ford Focus ST 2.0 / 2.3 EcoBoost (N3DA, 2019-present)
Typical failure mileage: 50,000-90,000 miles

Root cause

Direct injection systems are prone to carbon accumulation on the back of intake valves, restricting airflow. Combined with high fuel pressures, this can accelerate high-pressure fuel pump (HPFP) wear and cause lean running conditions, potentially damaging valves or pistons over time.

Repair options

Repair tier	Dealer price	Specialist price
Walnut Blasting & HPFP Service	£800-£1,200	£500-£800
Full Replacement - rebuilt/reconditioned engine	£6,000-£8,000	£4,000-£5,500

Our recommendation

Regular walnut blasting every 30,000 miles is a highly effective preventative measure for the N3DA. Full replacement is only warranted if neglect has led to secondary internal engine damage.

-> Compare rebuilt N3DA Ford Focus ST 2.0 / 2.3 EcoBoost engine prices

Don't Let Engine Failure Write Off Your Ford Focus ST 2.0 / 2.3 EcoBoost

Whether you are dealing with ringland cracking or carbon buildup, comparing quotes ensures you do not overpay at a main dealer. EnginesMarket connects you directly with vetted UK specialists who supply upgraded, reconditioned Ford Focus ST 2.0 / 2.3 EcoBoost engines backed by a minimum 12-month unlimited-mileage warranty and nationwide delivery or supply & fit options.

Compare Ford Focus ST 2.0 / 2.3 EcoBoost Engine Replacement Prices Now ->

FAQ

Ford Focus ST 2.0 / 2.3 EcoBoost Engine ReplacementFrequently Asked Questions

Everything Ford Focus ST 2.0 / 2.3 EcoBoost owners usually ask before choosing a rebuilt, reconditioned or used replacement engine.

A complete reconditioned Ford Focus ST 2.0 / 2.3 EcoBoost engine typically costs between £2,500 and £4,500 for supply only, while fully rebuilt units with upgraded forged components range from £3,500 to £5,500. Used engines are available from around £1,500.

Prices vary based on the specific engine code (R9DA, R9DC, or N3DA).
Supply & fit labour will add approximately £650-£900 depending on the specialist.
All rebuilt engines include a minimum 12-month warranty.

-> Compare Ford Focus ST 2.0 / 2.3 EcoBoost engine replacement prices today.

Piston ringland failure in the Ford Focus ST 2.0 / 2.3 EcoBoost usually presents as a sudden loss of power, excessive blue or white smoke from the exhaust, and a pronounced engine misfire.

You may notice a drop in oil pressure or metallic knocking sounds from the bottom end.
A compression test will reveal significantly low readings in the affected cylinder.
Ignoring these signs can lead to catastrophic engine seizure and damage to the cylinder head.

-> Get a diagnostic quote for your Ford Focus ST 2.0 / 2.3 EcoBoost engine issues.

For a Ford Focus ST 2.0 / 2.3 EcoBoost valued between £8,000 and £28,000 depending on generation, a full rebuilt engine is a financially sound investment.

The replacement cost represents a reasonable percentage of the vehicle's total value, especially for well-maintained examples.
A rebuilt engine with forged internals often exceeds the reliability of the original factory unit.
For lower-value, heavily damaged early Mk3 examples, a quality used engine may be a more budget-conscious route.

-> Check used and reconditioned Ford Focus ST 2.0 / 2.3 EcoBoost engine prices.

While physically possible, fitting a 2.3L N3DA engine into a Mk3 Ford Focus ST 2.0 / 2.3 EcoBoost is not a direct bolt-on swap.

It requires significant supporting modifications, including a custom ECU tune, different turbo plumbing, and an upgraded intercooler.
The wiring harness and engine mounts may also require adaptation.
We recommend consulting a specialist performance tuner before attempting this conversion to ensure compatibility and reliability.

-> Confirm your exact Ford Focus ST 2.0 / 2.3 EcoBoost engine code by entering your registration.

A standard supply and fit for a Ford Focus ST 2.0 / 2.3 EcoBoost engine typically takes 2 to 3 days once the engine has been delivered to the specialist workshop.

Nationwide delivery of the engine usually takes 24-48 hours.
The total turnaround time from quote acceptance to driving away is generally 4 to 6 working days.
Complex cases involving custom tuning or seized ancillaries may require additional time.

-> Book a supply & fit quote for your Ford Focus ST 2.0 / 2.3 EcoBoost.

Why Choose Us

Compare Ford Focus ST 2.0 / 2.3 EcoBoost Engine Prices Today

Comparing quotes is completely free and carries no obligation. By entering your registration, you ensure that every quote you receive is precisely matched to your Ford Focus ST 2.0 / 2.3 EcoBoost and its specific engine code, saving you from costly mismatches and dealer markups on high-performance components.

500+500+ Ford Focus ST 2.0 / 2.3 EcoBoost engines supplied through our network

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Compare quotes from trusted UK Ford Focus ST 2.0 / 2.3 EcoBoost engine specialists with warranty-backed rebuilt, reconditioned and used options nationwide.