Rebuilt Subaru Impreza Engine for Sale - Save Up to 60% with 12m Warranty UK
Compare Impreza engine prices. Rebuilt EJ20/EJ25 & FB20 units for GC/GD/GJ (1992-2020) with 12m warranty from UK suppliers.
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Subaru Impreza Specialists
Expert Solutions for Every Impreza - 2.0i to WRX STI
Need a reliable replacement engine for your Subaru Impreza ?
Engine Finders specializes in Impreza engines with solutions for EJ20/EJ25 failure patterns across all variants.
- ✔ Full Impreza Engine Range - EJ20/EJ25 petrol & Boxer diesel across all generations
- ✔ Series-Wide Calibration - Correct ECU mapping for every Impreza chassis (GC/GF/GD/GG)
- ✔ Impreza Pricing Advantage - Save up to £2,000 vs dealer on common head gasket repairs
Subaru Impreza Replacement Engines Options - Verified Units (UK Supply)
All engines bench-tested, VAT-inclusive, with 12-month warranty. MoT-compliant. Nationwide delivery. Direct OEM fitment for GC8, GD, GG, GH, GJ, VA.
Complete EJ20/EJ25 overhauls with upgraded oil rings to address common consumption issues.
Factory-spec EJ and FA engine rebuilds with improved timing chain components.
Thoroughly inspected boxer engines with verified compression and timing components.
Direct swap EJ/FA engines for minimal installation downtime and AWD compatibility.
Restored boxer engines with balanced rotating assembly and updated gaskets.
Low-mileage EJ/FA engines with verified history and AWD system compatibility.
Subaru Impreza Compatible Engine Codes & Average Prices on Rebuilt Units
All engines professionally reconditioned, bench-tested, and supplied with 12-month warranty. Direct OEM fitment. VAT-inclusive. Nationwide UK delivery.
Why Choose Engine Finders for Your Subaru Impreza Engine?
Engine Finders connects UK drivers with vetted specialists for reliable, reconditionished Subaru Impreza replacement engines. From EJ20 and EJ25 boxer engines to the newer FA20 and FB20 units found across the Impreza range, we provide comprehensive engine solutions. Whether you're battling EJ25 oil consumption issues across early 2.5L variants or FA20 timing chain problems in later WRX models, Engine Finders makes it easy to locate the right engine, fast.
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✔ Impreza-Wide EJ25 Oil Consumption Fix: We address the notorious short-block failure (OEM 21100AA050) across all 2.5L variants using Subaru Service Bulletin-compliant rebuilds with upgraded oil control rings.
Our specialists understand that EJ25 engines in all GC8/GD/GG Impreza models share the same oil consumption pattern after 80k miles due to cylinder wall scoring. We provide complete short-block rebuilds with improved materials that eliminate the root cause affecting WRX, 2.5RS, and 2.5TS variants alike.
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✔ FA20 Timing Chain Upgrade: We install reinforced timing chain assemblies (OEM 14400AA040) across all FA20-powered Impreza models including WRX and STI variants.
FA20 engines in WRX and STI models suffer identical timing chain stretching after 60k miles due to the same chain tensioner design. Our specialists use upgraded components and adjust valve timing specifications to prevent premature chain failure across all turbocharged Impreza variants.
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✔ EJ20 Turbocharger Compatibility: We match factory-spec turbo units (OEM 14600AA030) across EJ20T-powered Impreza WRX models ensuring proper boost mapping and reliability.
EJ20T engines in WRX variants from 2002-2014 use identical turbo configurations with shared wastegate and compressor wheel specifications. Our specialists ensure proper turbo sizing and boost control calibration across all EJ20T-powered Impreza models.
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✔ Boxer Engine Mounting System: We address the shared engine mounting configuration (OEM 21800AA020) used across all Impreza boxer engine variants preventing excessive vibration.
All Impreza models with boxer engines share the same mounting points and torque reaction design, leading to identical mount wear patterns. Our specialists understand the unique stress points affecting both naturally aspirated and turbocharged boxer engines across the entire Impreza range.
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✔ CVT Transmission Integration: We ensure proper CVT compatibility (OEM 21100AA070) across all CVT-equipped Impreza models including 2.0i and 2.5i variants.
CVT-equipped Impreza models from 2012 onwards share identical transmission control strategies and engine mounting configurations. Our specialists verify proper CVT programming and torque converter matching across all automatic Impreza variants.
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✔ All-Wheel Drive System Integration: We maintain proper AWD functionality (OEM 21100AA060) across all Impreza models ensuring center differential and transfer case compatibility.
All Impreza models use the same symmetrical AWD system with shared center differential components and drive shaft configurations. Our specialists ensure proper AWD operation and torque distribution across both manual and automatic Impreza variants.
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✔ Emissions System Compliance: We maintain factory emissions standards (OEM 21100AA080) across all Impreza engine variants ensuring catalytic converter and EGR system functionality.
Impreza models share identical emissions control systems with shared EGR valves, catalytic converters, and oxygen sensor configurations. Our specialists ensure proper emissions system integration across all engine variants to meet UK MOT requirements.
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✔ Engine Control Unit Compatibility: We ensure proper ECU programming (OEM 22600AA010) across all Impreza engine variants maintaining factory performance and diagnostic capabilities.
Impreza engine swaps require specific ECU calibration matching for proper fuel mapping, ignition timing, and AWD system operation. Our specialists understand the ECU coding requirements across different engine families and ensure seamless integration with existing vehicle systems.
Rated 4.9 out of 5 by 1081 satisfied customers who choose reconditioned and used Subaru engines through Engine Finders.
Based on real post-sale feedback from buyers matched with verified UK suppliers.
Subaru Impreza Engines for Sale | Engine Finders
Engine Finders connects UK drivers with specialists for reliable, reconditioned Subaru Impreza replacement engines. Whether battling EJ20/EJ25 head gasket failures across early generations or FB20 timing chain issues in newer models, we provide direct OEM-spec solutions for the entire Impreza series.
Subaru Impreza Replacement Engines
The Subaru Impreza evolved through four critical generations: GC/GF (1992-2000) with EJ15/EJ16/EJ18/EJ20 engines, GD/GG (2002-2014) introducing EJ25 and turbo variants, GJ (2012-2020) with FB20/FB25 boxer engines, and GK (2014-present) featuring FA20 powertrains. All EJ series engines (GC/GD/GG) suffered head gasket failures addressed in Service Bulletin SB-01-4-02, while FB20/FB25 engines share timing chain tensioner issues regardless of trim. The newer FA20 engines maintain boxer reliability but inherit direct injection carbon build-up problems from the series-wide adoption of this technology.
Subaru Impreza Models & Engines Codes
The Impreza series utilizes several boxer engine families spanning multiple generations and trim levels. Each engine family shares common failure patterns and components across all compatible variants within the series.
- EJ20: 2.0L petrol (GC8/GF8, 1992-2007) - Head gasket (12200AA000) failure across all variants
- EJ25: 2.5L petrol (GD/GG, 2002-2014) - Timing chain tensioner issues in all models
- EJ20T: 2.0L turbo petrol (GC8/GF8, 1992-2007) - Turbo and head gasket concerns across WRX/STI
- EJ25T: 2.5L turbo petrol (GD/GG, 2002-2014) - High-performance internals in STI variants
- FB20: 2.0L petrol (GJ, 2012-2020) - Timing chain and oil consumption issues
- FB25: 2.5L petrol (GJ, 2012-2020) - Similar timing and gasket concerns as FB20
- FA20: 2.0L petrol (GK, 2014-present) - Direct injection carbon build-up across range
All Impreza boxer engines maintain the series-specific symmetrical all-wheel drive architecture, requiring compatible engine mounts and transmission components during replacement procedures.
Buy Used and Second-Hand Subaru Impreza Engines
For Impreza owners, used engines carry high risk due to shared EJ series head gasket failures and FB20 timing chain issues. Reconditioned units with updated gaskets (12200AA000) are essential for pre-2014 models, while remanufactured FB20/FB25 engines with timing chain upgrades are recommended for GJ generation variants regardless of trim level.
- Used engines: High risk due to shared failure patterns across Impreza series
- Reconditioned engines: Updated components for known series-wide issues
- Remanufactured engines: Complete rebuild with upgraded internals
- Exchange units: Core charge applies with guaranteed OEM specifications
All engines undergo series-specific quality checks ensuring compatibility with Subaru's symmetrical all-wheel drive system and maintaining the Impreza's performance characteristics.
Subaru Impreza Engines in Stock
Our reconditioned Impreza engines include comprehensive component upgrades addressing series-wide failure patterns. Each unit receives updated timing components, gaskets, and seals specific to the engine family across all compatible variants.
- New head gaskets and bolts (EJ series) for series-wide failure prevention
- Updated timing chains and tensioners for FB20/FB25 reliability
- Complete engine oiling system refresh including oil pump
- Reconditioned cylinder heads with valve service
- Updated pistons and rings where applicable to engine family
All units undergo 3-hour dyno testing simulating real-world loads across all Impreza trim levels, with compression checks meeting Subaru service manual specifications for the entire series.
Warranty for Replacement Subaru Impreza Engines
12-month warranty on all rebuilt engines covering the full Impreza series compatibility. Warranty terms ensure comprehensive protection while acknowledging series-specific design characteristics.
- 12-month/12,000-mile warranty on all reconditioned units
- EJ series: Head gasket coverage included with updated components
- FB20/FB25: Timing chain components covered with upgrades
- Labour costs covered at approved rates
Engine Finders is a price comparison website - warranty terms are set by our vetted UK suppliers. Final coverage varies by engine family and mileage. EJ series timing components excluded due to design characteristics affecting all variants.
Expert Tips for Choosing the Right Engine for Your Subaru Impreza
♻️ Subaru Impreza Engine Types Explained
- EJ20 engines (1992-2007) need head gasket updates (OEM 12200AA000) in Impreza models
- EJ25 engines (2002-2014) require timing chain attention across all Impreza variants
- FB20 engines (2012-2020) have direct injection carbon issues specific to Impreza
- FA20 engines (2014-present) benefit from updated oil pump components in Impreza
£ Subaru Impreza Replacement Engine Cost in the UK
- EJ20 engines cost £2,400-£2,800 for reconditioned units in Impreza models
- EJ25T turbo engines cost £3,200-£3,600 due to high-performance components
- FB20 engines cost £2,700-£3,000 with updated timing components for Impreza
- FA20 engines cost £3,100-£3,400 with direct injection system included
🔍 Finding the Right Subaru Impreza Engine
- Check engine code on firewall - EJ20, EJ25, FB20, FA20 specific to Impreza
- Match transmission type - Impreza has unique AWD engine mounts
- Verify year compatibility - 1992-2000, 2002-2014, 2012-2020, 2014+ generations
- Confirm turbo vs non-turbo - Impreza WRX/STI require turbo-specific engines
⛽ Subaru Impreza Petrol vs Diesel Engines
- Petrol EJ/FB/FA engines dominate Impreza lineup - no diesel variants in UK
- Boxer configuration offers unique balance and AWD integration benefits
- Higher maintenance costs for turbo models - WRX/STI require premium service
- Direct injection FB/FA engines need regular carbon cleaning in Impreza
🔒 Quality Assurance & Warranty
- All Impreza engines tested for AWD compatibility and symmetrical drive system
- Updated head gaskets (12200AA000) included for EJ series engines in Impreza
- Timing components upgraded per Subaru service bulletin for FB20/FB25
- 12-month warranty covers Impreza-specific AWD integration and engine mounts
🛒 Compare & Save on Subaru Impreza Engines
- Compare reconditioned EJ20 vs used - reconditioned saves £800-£1,200 in Impreza
- Shop during Q4 for end-of-year engine sales on Impreza parts
- Bundle engine + installation for 15-20% savings on Impreza services
- Verify supplier has Impreza-specific AWD mounting experience
⚙️ Subaru Impreza Engine Works: How Experts Rebuild Engines
When your engine fails, Subaru Impreza engine works can restore performance at a fraction of the cost of a brand-new engine. From diagnostics to rebuild, here's how experts ensure optimal results.
1. Engine Strip-Down & Inspection: Technicians disassemble the Impreza engine completely, checking for wear patterns unique to boxer configuration. Critical measurements include cylinder bore wear, crankshaft journals, and connecting rod clearances. For EJ series engines, head gasket failure patterns are specifically documented.
3. Block Machining & Preparation: The Impreza's boxer engine block undergoes precision boring and honing. Cylinder walls are crosshatched for proper oil retention. Main bearing caps are line-bored to ensure perfect alignment. For FB20/FB25 engines, updated timing chain guides are installed per Subaru service bulletin.
5. Quality Testing & Validation: Completed Impreza engines undergo 3-hour dyno testing simulating real-world loads. Oil pressure, temperature, and compression are monitored across all cylinders. AWD compatibility is verified through driveline integration testing specific to the symmetrical system.
2. Component Replacement & Upgrades: Worn parts are replaced with OEM-quality components. For EJ20/EJ25 engines in Impreza, updated head gaskets (OEM 12200AA000) are installed. Timing chains, tensioners, and guides are replaced with improved versions. Oil pumps and water pumps are renewed for reliability.
4. Assembly with Torque Specifications: Engines are reassembled using precise torque sequences specific to Impreza models. Critical bolts like head bolts and main bearing caps are torqued to Subaru specifications (typically 25-30Nm for head bolts). Assembly includes new gaskets, seals, and o-rings throughout.
6. Final Inspection & Delivery Preparation: Each rebuilt Impreza engine receives final quality inspection including leak testing and external component verification. Engine mounts and accessories are checked for compatibility. Documentation includes service history and warranty information specific to the Impreza model.