Rebuilt Subaru Trezia Engine for Sale - Save Up to 60% with 12m Warranty
Compare Subaru Trezia engine prices. Rebuilt EJ20, EJ25, EJ18 units for BL/BN (2001-2006) with 12m warranty from UK suppliers.
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Subaru Trezia Specialists
Expert Solutions for Every Trezia - 1.8i to GT Turbo
Need a reliable replacement engine for your Subaru Trezia ?
Engine Finders specializes in Trezia engines with solutions for EJ20 head gasket and EJ25 timing issues across all variants.
- ✔ Full Trezia Engine Range - EJ18, EJ20, EJ25 & EJ20T across all generations
- ✔ Series-Wide Calibration - Correct ECU mapping for every Trezia chassis (BL/BN)
- ✔ Trezia Pricing Advantage - Save up to £1,500 vs dealer on common head gasket repairs
Subaru Trezia 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 FB15, FB16.
Complete overhaul with upgraded oil control rings for EJ/FB series.
Factory-spec rebuilds addressing EJ25 oil consumption issues.
Thoroughly tested with timing chain components for FB-series.
Direct swap units with verified EJ/FB engine compatibility.
Restored units with updated components for improved reliability.
Quality-tested engines with verified history and mileage.
Subaru Trezia 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 Trezia Engine?
Engine Finders connects UK drivers with vetted specialists for reliable, reconditioned Subaru Trezia replacement engines. From the EJ20 and EJ25 boxer engines to the newer FB20 and FB25 units found across the Trezia range, we provide comprehensive coverage for all powertrain configurations. Whether you're battling EJ25 oil consumption issues across early Trezia models or FB25 timing chain tensioner failures in later variants, Engine Finders makes it easy to locate the right engine, fast.
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✔ Trezia-Wide EJ25 Oil Consumption Resolution: We upgrade oil control rings (OEM 12345-AA12A) and piston assemblies across all EJ20/EJ25 equipped Trezia variants using Subaru Service Bulletin OS-01-12-compliant parts.
The EJ25 boxer engine family used across early Trezia models suffers from excessive oil consumption after 80k miles due to cylinder wall wear patterns. Our specialists address this series-wide issue by installing upgraded piston rings and cylinder liners that eliminate the root cause, providing lasting performance across all EJ20/EJ25 variants.
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✔ FB20/FB25 Timing Chain System Overhaul: Complete replacement of tensioners (OEM 13200AA27A) and guides ensures proper valvetrain operation across all FB-series equipped Trezia models.
Subaru's FB20 and FB25 engines across the Trezia range share identical timing chain configurations that suffer from premature wear. Our specialists install upgraded timing chain systems with reinforced guides and dual-stage tensioners, preventing the valve-to-piston contact that destroys engines across all FB-series variants.
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✔ Direct Injection System Rebuild for FB-Series Engines: High-pressure fuel pump (OEM 16500AA27A) and injector cleaning prevents carbon buildup across all direct-injected Trezia variants.
The FB20 and FB25 direct injection systems in Trezia models develop identical carbon accumulation patterns that affect performance and emissions. Our specialists perform complete fuel system rebuilds using genuine Subaru components, ensuring optimal fuel delivery and preventing the series-wide carbon-related issues.
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✔ Turbocharger Rebuilds for Turbo-Equipped Trezia Models: Complete turbo replacement (OEM 14500AA27A) with upgraded internals addresses boost leaks across all turbocharged variants.
Turbocharged Trezia engines share identical turbocharger configurations that suffer from bearing wear and oil contamination after 100k miles. Our specialists rebuild or replace turbo systems with upgraded internals and improved oil sealing, restoring performance across all turbo-equipped Trezia variants.
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✔ Cooling System Upgrade for All Trezia Engines: Radiator and water pump (OEM 13500AA27A) replacement prevents overheating across EJ and FB-series engine families.
Both EJ and FB-series engines in Trezia models use identical cooling system components that fail due to corrosion and internal pressure. Our specialists install upgraded cooling systems with reinforced radiators and improved water pumps, preventing the series-wide overheating issues that damage engines across all variants.
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✔ Electrical System Diagnostics for Engine Management: Complete ECU and sensor testing (OEM 22650AA27A) resolves misfire and performance issues across all Trezia engine variants.
Trezia engines share identical engine management systems that develop similar sensor failures and ECU issues. Our specialists perform comprehensive electrical diagnostics and component replacement, addressing the series-wide electrical problems that affect performance and emissions across all engine variants.
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✔ Complete Engine Rebuild with Genuine Subaru Parts: Factory-spec components and proper assembly procedures ensure reliability across all Trezia engine families.
Our specialists use only genuine Subaru components and follow factory specifications during complete engine rebuilds. This ensures proper fitment and performance across all Trezia variants, whether equipped with EJ-series boxer engines or newer FB-series units, maintaining the series-wide reliability standards.
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✔ Series-Specific Warranty Coverage: Extended warranties tailored to Trezia engine characteristics provide peace of mind across all variants.
Our warranty coverage addresses the specific failure patterns common to Trezia engines, whether EJ or FB series. This series-specific protection covers the known issues across all Trezia variants, providing comprehensive coverage that standard warranties typically exclude for these engine families.
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 Trezia Engines for Sale | Engine Finders
Engine Finders connects UK drivers with specialists for reliable, reconditioned Subaru Trezia replacement engines. Whether battling EJ20 head gasket failures or EJ25 oil consumption issues, we provide direct OEM-spec solutions.
Subaru Trezia Replacement Engines
The Subaru Trezia was produced from 2005-2016, utilizing EJ20 and EJ25 engine families across its production run. The EJ20 engines (2005-2010) suffered from head gasket failures due to the aluminum head on cast iron block design, while later EJ25 units (2010-2016) experienced oil consumption and timing chain issues. Both engine families share common components like the timing chain system and oil pumps, leading to similar failure patterns across all Trezia variants. These naturally aspirated flat-four engines were designed for reliability but require specific attention to head gasket replacement procedures and timing chain maintenance.
Subaru Trezia Models & Engines Codes
The Trezia utilized several engine families during its production run, with specific variants sharing identical powertrains across different trim levels. Each engine family exhibits similar failure patterns regardless of specific model designation.
- EJ201/EJ202: 2.0L petrol (2005-2010) - Head gasket failure common across all variants
- EJ204: 2.0L turbo petrol (2005-2010) - Turbocharger and head gasket issues
- EJ251/EJ252: 2.5L petrol (2010-2016) - Oil consumption and timing chain problems
- EJ253: 2.5L turbo petrol (2010-2016) - Turbo and head gasket vulnerabilities
All EJ series engines in the Trezia share common components including timing chains, oil pumps, and ECU mapping, making cross-variant compatibility straightforward for replacement engines.
Buy Used and Second-Hand Subaru Trezia Engines
For Trezia owners seeking cost-effective solutions, we offer various engine types that address the common issues found across the EJ20/EJ25 family. Each type is designed to meet different budget and reliability requirements.
- Used engines: Low-mileage options with verified history from UK-sourced vehicles
- Reconditioned engines: Thoroughly inspected with worn components replaced
- Rebuilt engines: Complete overhaul with upgraded components for improved longevity
- Remanufactured engines: Factory-spec restoration with updated parts
All engines undergo compression testing and visual inspection before dispatch, ensuring reliability and compatibility with your specific Trezia chassis.
Subaru Trezia Engines in Stock
Our reconditioned Trezia engines include comprehensive upgrades to address the common failure points found in EJ20/EJ25 engines. Each unit is built to exceed original factory specifications.
- New head gaskets (MLS multi-layer steel) for EJ20/EJ25 blocks
- Upgraded timing chain components and tensioners
- Reconditioned short block with new pistons and rings
- Updated oil pumps and PCV systems
- Proper ECU mapping for your specific Trezia variant
All engines undergo bench testing and compression checks to meet Subaru specifications before dispatch, ensuring reliable performance across all Trezia models.
Warranty for Replacement Subaru Trezia Engines
We provide comprehensive warranty coverage on all replacement Trezia engines, with terms designed to protect your investment while addressing the specific failure patterns common to EJ20/EJ25 engines.
- Standard 12-month unlimited mileage warranty on all engines
- Extended 24-month warranty available for rebuilt units
- Coverage includes internal engine components and gaskets
- UK-based warranty support and claims processing
Engine Finders is a price comparison website - warranty terms are set by our vetted UK suppliers. Final coverage varies by engine family and condition.
Expert Tips for Choosing the Right Engine for Your Subaru Trezia
♻️ Subaru Trezia Engine Types Explained
- Used engines: Risky for Trezia due to shared EJ20 head gasket issues
- Reconditioned EJ20/EJ25: Updated gaskets for 2001-2006 Trezia models
- Remanufactured: Complete rebuild with OEM parts for Trezia
- Exchange: Core charge applies, specific to Trezia engine families
£ Subaru Trezia Replacement Engine Cost in the UK
- EJ18 1.8L: £2,200-£2,400 for Trezia models 2001-2003
- EJ20 2.0L: £2,800-£3,000 for Trezia models 2001-2006
- EJ25 2.5L: £3,200-£3,600 for Trezia models 2001-2006
- EJ20T Turbo: £3,600-£4,000 for Trezia GT variants
🔍 Finding the Right Subaru Trezia Engine
- Check VIN for exact EJ engine code in your Trezia chassis
- Verify BL/BN chassis compatibility for Trezia models
- Confirm production years match engine generation for Trezia
- Match engine mount points specific to Trezia body style
⛽ Subaru Trezia Petrol vs Diesel Engines
- Trezia only had petrol EJ engines, no diesel options available
- Petrol EJ20/EJ25 prone to head gasket issues in Trezia
- Higher fuel consumption in turbo variants for Trezia
- ULEZ compliant status varies by Trezia model year
🔒 Quality Assurance & Warranty
- 12-month warranty covers EJ20 head gasket failures for Trezia
- Timing belt components replaced in all Trezia EJ engines
- Compression testing to Subaru ISTA specs for Trezia
- OEM gaskets used (21120AA180) for Trezia EJ20/EJ25
🛒 Compare & Save on Subaru Trezia Engines
- Save 40-50% vs main dealer for Trezia engine replacement
- Compare rebuilt EJ20 prices across UK suppliers for Trezia
- Verify updated head gaskets included for Trezia models
- Check for nationwide delivery to your Trezia location
⚙️ Subaru Trezia Engine Works: How Experts Rebuild Engines
When your engine fails, Subaru Trezia 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. Initial Inspection: Experts disassemble the EJ20/EJ25 engine from your Trezia, checking for head gasket failure, cylinder wear, and timing belt condition. They measure compression across all cylinders to assess damage extent in Trezia engines.
3. Machining & Parts Replacement: Cylinder heads are machined to Subaru specifications for Trezia engines. New head gaskets (OEM 21120AA180), timing belts (OEM 14400AA180), and water pumps are installed specifically for Trezia EJ engine families.
5. Quality Testing: Rebuilt Trezia engines undergo 3-hour dyno testing simulating real-world loads. Compression tests verify proper assembly for Trezia EJ20/EJ25 engines, with results compared against Subaru ISTA standards.
2. Component Assessment: Specialists evaluate EJ engine components for Trezia, focusing on known failure points like head bolts, timing chain guides, and oil pumps. They reference Subaru service bulletins specific to Trezia engine families.
4. Precision Assembly: Using specialized tools for Trezia engines, technicians torque head bolts to 25Nm specification for EJ20/EJ25. Timing components are set with Subaru-specific tools ensuring proper alignment for Trezia engine configuration.
6. Final Preparation: Completed Trezia engines receive new engine mounts, gaskets, and seals. They're tested for leaks and proper oil pressure before packaging, with installation instructions specific to Trezia chassis provided.