Subaru Legacy EJ20 Petrol Engines
from £600 to £2,800
Rebuilt units from £1,200 · Common codes: EJ201, EJ202, EJ204, EJ205
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Subaru Legacy Engine Replacement - Compare Quotes from UK Specialists
Get quotes from trusted UK Subaru Legacy engine specialists. Compare reconditioned and rebuilt prices for EJ201, EJ25D, and EJ22 - 2.0L to 2.5L boxer covered. Get specialist quotes for your Legacy.
Supply & Fit Available
12-Month Warranty
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Subaru Legacy EJ25 Petrol Engines
from £750 to £3,200
Rebuilt units from £1,400 · Common codes: EJ251, EJ253, EJ255, EJ257
Subaru Legacy EZ30 Performance Engines
from £1,800 to £4,500
Rebuilt units from £2,400 · Common codes: EZ30D, EZ30R
Instant engine replacement quote - 100% free, no obligation
Engine replacement near me - UK-wide specialist network
Compare reconditioned, rebuilt & used engine prices
Supply & fit available - parts and labour from vetted specialistsInstant engine replacement quote - 100% free, no obligationEngine replacement near me - UK-wide specialist networkCompare reconditioned, rebuilt & used engine pricesSupply & fit available - parts and labour from vetted specialistsHow It Works
3 Simple Steps3 Simple Stepsto Finding the Best Subaru Legacy Replacement Engineto Finding the Best Subaru Legacy Replacement Engine
12-Month Warranty
Supply & Fit Available
Nationwide Delivery
Trusted UK Suppliers
Most replacements completed within 3-5 days.
Live UK Engine Market Data
Average Market Prices
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↻ Last updated: 4 Aug 26, 9:26
Customer Reviews
Trusted by Subaru Legacy Owners Across the UK
Rated 4.8 out of 5 by 1,081 verified customers who sourced reconditioned and used Subaru Legacy engines through EngineMarket.
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“Thanks to EngineMarket, I saved over £1,200 on my engine replacement and got matched with a great local specialist within the hour.”
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“Got three quotes within an hour and chose the best deal easily. The whole process was quick, clear and stress-free.”
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“I wasn't sure what I needed, but they helped me identify the right engine and connected me with a trusted garage.”
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Variants We Cover
Subaru Legacy Engine ReplacementAll Variants Covered
Subaru Legacy 2.0i
EJ20 2.0L Petrol
Rebuilt Engines: £1,200-£2,200
Subaru Legacy 2.0GT
EJ20 2.0L Petrol
Rebuilt Engines: £1,800-£2,800
Subaru Legacy 2.5i
EJ25 2.5L Petrol
Rebuilt Engines: £1,400-£2,600
Subaru Legacy 3.0R
EZ30 3.0L Petrol
Rebuilt Engines: £2,400-£4,500
Subaru Legacy Spec-B
EZ30/EJ20 2.0L Petrol
Rebuilt Engines: £2,400-£4,500
Subaru Legacy GT
EJ20 2.0L Petrol
Rebuilt Engines: £1,800-£2,800
Subaru Legacy GTB
EJ20 2.0L Twin
Rebuilt Engines: £2,200-£3,200
Subaru Legacy Outback 2.0
EJ20 2.0L Petrol
Rebuilt Engines: £1,200-£2,200
Subaru Legacy Outback 2.5
EJ25 2.5L Petrol
Rebuilt Engines: £1,400-£2,600
Subaru Legacy Outback 3.0
EZ30 3.0L Petrol
Rebuilt Engines: £2,400-£4,500
Subaru Legacy 2.0D Diesel
EE20 2.0L Diesel
Rebuilt Engines: £1,600-£3,000
Subaru Legacy Japanese Import
EJ20/EJ25 2.5L Petrol
Rebuilt Engines: £600-£2,800
Not sure which variant your Subaru Legacy is- Enter your registration number above - we'll identify the exact sub-model, engine code and compatible replacement options instantly.
Legacy
Engine Codes
Subaru Legacy Engine CodesFull Technical Specifications & Replacement Guide
Every engine code fitted to the Subaru Legacy across all generations, with technical specs, compatible variants and trims, known failure points, and average rebuilt prices from UK specialists. Select any engine code to compare quotes.
Petrol Engines
Extracted from detailed petrol and performance engine families across Subaru Legacy variants.
EJ20 - 2.0L Petrol
Main replacement demand comes from timing-chain, cooling-system and performance thermal-management faults.
Compatible variants
2.0i2.0GTGTGTBOutback 2.0
Avg. rebuilt price
£1,200 - £2,800
Supply only
Technical specifications
- Fuel type
- Petrol
- Engine size
- 2.0L
- Power output
- 140-280 hp
- Years fitted
- 2003-2014
Common failures
- ●Main replacement demand comes from timing-chain, cooling-system and performance thermal-management faults.
- ●Confirm exact engine code and fitment before ordering.
- ●Ask for warranty and supply & fit terms.
Not sure which engine code?
Can't find your engine code- Enter your registration number above - we'll instantly identify the exact unit, its technical specifications, and live replacement prices from UK Subaru Legacy engine specialists. Every rebuilt engine comes with a minimum 12-month unlimited mileage warranty.
Legacy
Common Problems
Subaru Legacy Engine Problems - What It Costs to Fix & When Replacement Makes Sense
The Subaru Legacy relies primarily on EJ20 and EJ25 naturally aspirated and turbocharged boxer engines across most UK variants, with the rare EZ30 flat-six and EE20 diesel options. While generally robust, head gasket failure on EJ20/EJ25, timing belt neglect, and turbo wear dominate replacement enquiries. Every rebuilt engine supplied through EngineMarket...
EJ20/EJ25 Head Gasket Failure - Why Subaru Legacy Engines Leak Coolant
EJ20/EJ25 Head Gasket Failure
Most affected vehicles
Subaru Legacy 2.0i2.5i
Subaru Legacy 2.0i, 2.5i, 2.0GT, 2.5GT (2003-2009, EJ201/EJ202/EJ251/EJ253)
Failure mileage range
70,000-110,000 miles on high-mileage grey imports with incomplete service history
Typical failure window
Root cause
Multi-layer steel gasket degrades from thermal cycling; turbo variants suffer accelerated failure from exhaust heat. Coolant mixes with oil, causing overheating and potential engine seizure.
Repair options & estimated costs (UK ranges)
| Repair tier | Dealer price | Specialist price | What it involves | Longevity / suitability |
|---|---|---|---|---|
| Intermediate - Head Gasket Replacement | £950 - £1,650 | £600 - £950 | Remove cylinder heads, fit upgraded MLS gasket, resurface if needed, reassemble | Viable if block/head undamaged; requires Subaru boxer specialist knowledge |
| Full Replacement - Rebuilt EJ20/EJ25 with Upgraded Gasket | £2,400 - £4,200 | £1,200 - £2,800 | Supply & fit rebuilt engine with upgraded MLS gasket, full service, 12-month warranty | Recommended if overheating occurred or mileage exceeds 90k; peace of mind for turbo owners |
Our recommendation
If your Legacy shows only minor seepage with no overheating history, gasket replacement at £600-£950 may suffice. However, if overheating occurred or mileage is high, a rebuilt EJ20/EJ25 at £1,200-£2,800 avoids repeat failures and protects your investment.
Compare rebuilt EJ20/EJ25 engine prices for your Subaru LegacyReplacement Engine Options
Subaru Legacy Engine TypesOptions, Costs & What to Expect
Every Subaru Legacy engine type is available through our UK network with typical price ranges based on EJ20/EJ25/EZ30 codes, grey import status and your budget.
Subaru Legacy Reconditioned Engines (Recon)£1,200 - £2,800((supply only))
Subaru Legacy Rebuilt Engines£1,400 - £3,200((supply only))
Subaru Legacy Used Engines£600 - £1,800((supply only))
Subaru Legacy Remanufactured Engines£2,400 - £4,500((supply only))
Subaru Legacy Refurbished Engines£900 - £1,900((supply only))
Compare Subaru Legacy engine prices with vetted UK suppliers
All engine types include a minimum 12-month unlimited mileage warranty when sourced through EngineMarket. Prices are typical UK market ranges based on historical quote data from our network and depend on exact engine code, variant, mileage and supplier. Use our free comparison tool above - enter your registration to get tailored quotes for your specific Subaru Legacy within hours.
Engine Sizes
Subaru Legacy Engines by SizeFind the Right Displacement for Your Variant
Every displacement fitted to the Subaru Legacy is listed below, with compatible engine codes, production years and common failure notes for UK grey import owners.
The 2.0L EJ20 naturally aspirated and turbocharged petrol boxer engine powered most Subaru Legacy variants sold as grey imports to the UK from 2003-2014. This versatile aluminium-block DOHC unit with AVCS variable valve timing delivered 140-280hp depending on trim, though head gasket vulnerability on turbo variants requires diligent maintenance.
⚙
Engine Code(s)
EJ201, EJ202, EJ204, EJ205, EJ207
▣
Compatible Models (UK)
2.0i, 2.0GT, GT, GTB, Outback 2.0 (BL/BP/BM/BR chassis), 2003-2014
ϟ
Power output
Verified by registration
△
Common Failure Points
Head gasket failure on turbo variants, timing belt failure risk on interference design, oil starvation on turbo models if service intervals missed
Production Years: Check by registration
Compare Subaru Legacy 2.0L petrol engine pricesFuel Type
Subaru Legacy Engines by Fuel Type
Choose your Subaru Legacy engine by fuel type to compare realistic replacement prices, known issues, and compatible UK supply options - from the economical 2.0i to the high-performance 3.0R Spec-B.
Subaru Legacy Petrol Engines
PetrolThe Subaru Legacy was offered predominantly with EJ20 naturally aspirated and turbocharged, EJ25 larger-displacement, and EZ30 flat-six 2.0-3.0L petrol boxer engines across all UK grey import variants from 2003-2014.
Common Subaru Legacy Petrol Engine Families
- •EJ20 - dominant 2.0L unit (2.0i, 2.0GT), head gasket and timing belt vigilance essential
- •EJ25 - 2.5L option (2.5i, 2.5GT), notorious head gasket weakness on early revisions
- •EZ30 - flagship 3.0L flat-six (3.0R, Spec-B), refined power with timing chain monitoring
Found In
- •First Generation BL/BP Chassis (2003-2009) - EJ20, EJ25, EZ30 across all petrol trims
- •Second Generation BM/BR Chassis (2009-2014) - Revised EJ20/EJ25 calibration, EZ30 discontinued
Known For
- •Horizontally-opposed boxer design delivers low centre of gravity and smooth power delivery
- •EJ20/EJ25 head gasket failure from thermal cycling - primary replacement driver for grey imports
- •Timing belt critical every 60k miles on interference-design boxer engines
Typical Petrol Models
- •2.0i
- •2.0GT
- •2.5i
1 of 3
Subaru Legacy Petrol Engines
PetrolThe Subaru Legacy was offered predominantly with EJ20 naturally aspirated and turbocharged, EJ25 larger-displacement, and EZ30 flat-six 2.0-3.0L petrol boxer engines across all UK grey import variants from 2003-2014.
Common Subaru Legacy Petrol Engine Families
- •EJ20 - dominant 2.0L unit (2.0i, 2.0GT), head gasket and timing belt vigilance essential
- •EJ25 - 2.5L option (2.5i, 2.5GT), notorious head gasket weakness on early revisions
- •EZ30 - flagship 3.0L flat-six (3.0R, Spec-B), refined power with timing chain monitoring
Found In
- •First Generation BL/BP Chassis (2003-2009) - EJ20, EJ25, EZ30 across all petrol trims
- •Second Generation BM/BR Chassis (2009-2014) - Revised EJ20/EJ25 calibration, EZ30 discontinued
Known For
- •Horizontally-opposed boxer design delivers low centre of gravity and smooth power delivery
- •EJ20/EJ25 head gasket failure from thermal cycling - primary replacement driver for grey imports
- •Timing belt critical every 60k miles on interference-design boxer engines
Typical Petrol Models
- •2.0i
- •2.0GT
- •2.5i
Subaru Legacy Diesel Engines
DieselThe rare EE20 2.0L boxer diesel powered Legacy 2.0D variants for efficiency-focused grey import buyers, though UK availability is extremely limited.
Common Subaru Legacy Diesel Engine Families
- •EE20 - unique horizontally-opposed diesel, DPF/EGR sensitivity requires motorway use
Found In
- •Second Generation BM/BR Chassis (2008-2014) - EE20 diesel option on 2.0D trims
Known For
- •Boxer diesel layout offers smoothness but complicates DPF regeneration on short journeys
- •EGR valve carbon buildup common on urban-driven grey imports causing hesitation
- •Timing chain service critical; neglect leads to expensive top-end repairs
Typical Diesel Models
- •2.0D
- •2.0D AWD
- •Outback 2.0D
Subaru Legacy Hybrid / Electrified Engines
MHEVNo hybrid, plug-in hybrid or electric powertrains were offered on the Subaru Legacy in any market during its 2003-2014 production run.
Important Notes
- •All Legacy variants use conventional petrol or diesel boxer engines only
- •No electrified replacement options available; focus remains on EJ20/EJ25/EZ30/EE20 rebuilds
- •Grey import documentation requirements apply equally to all fuel types for UK registration
Not sure which fuel type your Subaru Legacy has- Enter your registration number above to instantly identify your engine code, fuel system and compatible replacement options - all backed by a minimum 12-month unlimited mileage warranty from UK Subaru Legacy specialists.
Engine YearsGet quotes for 2003 Subaru Legacy replacement engines →
Subaru Legacy Engines by YearWhat Was Fitted & WhenSubaru Legacy Engines by Year - What Was Fitted & When
This section covers all major engine changes across the Subaru Legacy production timeline, organised so grey import owners can quickly identify their EJ20/EJ25/EZ30 variant and compare rebuilt engine prices from UK specialists.
⚙Key Changes
- ✓First production year for Subaru Legacy grey imports to UK
- ✓BL/BP chassis codes introduced for all variants with EJ20/EJ25/EZ30 engine options
- ✓Early EJ251/EJ253 calibration with pre-revision head gaskets requiring attention on high-mileage units
▣Main Engines
EJ20- 2.0L petrol naturally aspirated/turbo (2.0i, 2.0GT)
EJ25- 2.5L petrol naturally aspirated/turbo (2.5i, 2.5GT)
EZ30- 3.0L petrol flat-six (3.0R, Spec-B)
▰Popular Models
- •Subaru Legacy 2.0i BL/BP
- •Subaru Legacy 2.0GT BL/BP
- •Subaru Legacy 3.0R Spec-B BL/BP
🔧Known For
- ✓Early EJ25 units may exhibit head gasket weakness; verify gasket revision status
- ✓EJ20 turbo head gasket vigilance essential on enthusiast-driven examples
- ✓Strong donor parts availability via shared Subaru Legacy/Outback platform
Engine Codes Covered:
EJ201EJ202EJ204EJ205EJ251EJ253EJ255EZ30DEZ30RNot sure which year your Subaru Legacy was built- Enter your registration number and we'll identify the exact engine, model year, and compatible replacement options instantly - all backed by a minimum 12-month warranty from UK Subaru Legacy specialists.
FAQ