Rebuilt Mitsubishi Eclipse Engine for Sale - Save Up to 60% with 12m Warranty UK Wide
Compare Eclipse engine prices. Rebuilt 4G63, 6G72 & 4G69 units for GA, GB, H (1989-2012) with 12m warranty from UK suppliers.
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Mitsubishi Eclipse Specialists
Expert Solutions for Every Eclipse - Base to Performance
Need a reliable replacement engine for your Mitsubishi Eclipse ?
Engine Finders specializes in Eclipse engines with solutions for common failure patterns across all variants and generations.
- ✔ Full Eclipse Engine Range - 4G63, 6G72, and other powerplants across all generations
- ✔ Series-Wide Calibration - Correct ECU mapping for every Eclipse chassis
- ✔ Eclipse Pricing Advantage - Save significantly vs dealer on common repair costs
Mitsubishi Eclipse 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 GA, GB, H.
High-performance rebuilds with OEM parts, addressing common 4G63 head gasket issues.
Fully stripped and rebuilt to factory specs with updated components.
Thoroughly inspected and restored, with known good components verified.
Direct swap engines for minimal downtime, ready for installation.
Cleaned, tested, and performance-tuned units with updated internals.
Affordable options with verified mileage and service history.
Mitsubishi Eclipse 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 Mitsubishi Eclipse Engine?
Engine Finders connects UK drivers with vetted specialists for reliable, reconditioned Mitsubishi Eclipse replacement engines. From the legendary 4G63 turbo and 4G64/4G69 naturally aspirated units to the 6G72/6G75 V6s found across all Eclipse generations (1G-3G, 1990-2005), we address shared failure points like oil pump wear in 4G63 engines (OEM 1462A001), head gasket blowouts in 4G64/4G69 blocks, and intake manifold runner failures in 6G75 V6s. Whether you're restoring a 1G Turbo, maintaining a 2G GSX, or reviving a 3G GT Spyder, Engine Finders delivers series-specific rebuilds backed by generational expertise.
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✔ Eclipse-Wide 4G63 Oil Pump Upgrade
All 4G63 turbo engines (1G Turbo & 2G GS-T/GSX/Spyder, 1990-1999) suffer from inadequate oil pressure due to OEM pump (part 1462A001) cavitation. We install high-flow billet replacements with updated pickup tubes, resolving starvation issues across both chassis generations in one rebuild.
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✔ 4G64/4G69 Head Gasket Integrity
The 4G64 (2G RS/GS) and 4G69 (3G GS/GT) share identical head bolt torque sequences and MLS gasket vulnerability. Using OEM-spec gasket (MD301450) and updated torque-to-yield bolts, we prevent repeat failures across all non-turbo Eclipse variants from 1995-2005.
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✔ 6G72/6G75 Intake Manifold Reliability
Both V6 engines-6G72 (2G GT) and 6G75 (3G GT/Spyder)-use problematic upper intake manifolds prone to runner flap motor failure (OEM MR437719). We rebuild with reinforced actuators and delete failure-prone IMRC systems where applicable, ensuring smooth operation across all V6 Eclipse models.
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✔ Timing System Precision for All 4-Cylinders
From 1G 4G37 to 3G 4G69, Eclipse 4-cylinder engines rely on interference timing belts. We use OEM-spec kits (MD318299 for 4G64/4G69) with updated tensioners, calibrated to chassis-specific service intervals-critical for avoiding bent valves in RS, GS, and GT variants alike.
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✔ Turbocharger & Oil Feed Consistency (4G63T)
The 4G63T in 2G GS-T/GSX and Spyder Turbo models shares oil feed restrictor design flaws (OEM MD600184) causing turbo coking. Our rebuilds include high-temp feed lines, inline filters, and updated drain tubes-solving a series-wide weakness in all turbocharged Eclipse variants.
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✔ Unified Cooling System for 2G/3G Engines
The 4G64 (2G) and 4G69 (3G) both suffer from water pump impeller degradation (OEM MN132025), leading to overheating. We install reinforced metal-impeller pumps and upgraded thermostat housings-ensuring thermal stability across all naturally aspirated Eclipse generations.
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✔ Wiring Harness & ECU Compatibility Across Generations
Eclipse engines from 1990-2005 use generation-specific ECUs (e.g., 1G: MR434531, 2G: MR575122, 3G: MR902345). We verify plug-and-play compatibility and reflash where needed, ensuring seamless integration whether you’re swapping a 4G63 into a Spyder or replacing a 6G75 in a 3G GT.
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✔ UK-Specific Climate Adaptation for All Rebuilds
Eclipse engines rebuilt for the UK undergo enhanced corrosion protection on mounts, brackets, and coolant passages-addressing moisture-related degradation common in 1G-3G models stored or driven in humid climates. Every unit is bench-tested to -5°C cold-start standards.
Rated 4.6 out of 5 by 578 satisfied customers who choose reconditioned and used Mitsubishi engines through Engine Finders.
Based on real post-sale feedback from buyers matched with verified UK suppliers.
Mitsubishi Eclipse Engines for Sale | Engine Finders
Engine Finders connects UK drivers with specialists for reliable, reconditioned Mitsubishi Eclipse replacement engines. Whether battling 4G63 head gasket failures across early models or addressing common 6G72 oil pump issues in later variants, we provide direct OEM-spec solutions.
Mitsubishi Eclipse Replacement Engines
The Mitsubishi Eclipse evolved through four generations: GA/GD (1989-1995) with 4G63/4G37 engines, GB (1995-1999) featuring 4G63/6G72 powerplants, H (2000-2006) with 4G63/6G72 variants, and the final generation (2006-2012) with 4G69 powerplants. All 4G63 engines (GA/GD/GB) suffered head gasket failures due to aluminum heads on cast iron blocks, addressed in later revisions. The 6G72 V6 engines across GB/H generations shared oil pump design weaknesses leading to premature wear, while the 4G69 from 2006-2012 inherited timing chain tensioner issues from earlier 4G63 variants regardless of trim level.
Mitsubishi Eclipse Models & Engines Codes
Eclipse engines span multiple generations with distinct families sharing common components and failure patterns across variants.
- 4G63: 2.0L turbo petrol (GA/GD/GB, 1989-1999) - Head gasket (MR402037) failure across all variants
- 6G72: 3.0L V6 petrol (GB/H, 1995-2006) - Oil pump (MR502035) wear affecting all power outputs
- 4G64: 2.4L petrol (GA/GD, 1989-1999) - Timing belt issues in non-turbo variants
- 4G69: 2.4L petrol (2006-2012) - Timing chain tensioner (MB928515) failure inherited from 4G63
- 4G63T: 2.0L turbo petrol (various generations) - Turbocharger and head gasket combination failures
These engine families share common mounting points and ECU compatibility within generation groups, allowing for cross-variant swaps with proper calibration.
Buy Used and Second-Hand Mitsubishi Eclipse Engines
For Eclipse owners: Used engines carry high risk due to shared 4G63/6G72 failure patterns. Reconditioned units with upgraded head gaskets (MR402037) are essential for pre-2000 models. Remanufactured 4G69 engines with timing chain upgrades are recommended for 2006-2012 variants regardless of trim level.
- Used engines: High risk for 4G63 due to head gasket issues
- Reconditioned engines: Include upgraded gaskets for 4G63/4G69
- Remanufactured engines: Complete rebuild with updated components
- Rebuilt engines: Performance-oriented upgrades available
All engines undergo compatibility verification for specific chassis codes and include necessary mounting hardware for direct installation.
Mitsubishi Eclipse Engines in Stock
Our reconditioned Eclipse engines include comprehensive upgrades addressing known generation-wide issues.
- New head gaskets (MR402037) for 4G63 engines
- Upgraded oil pumps (MR502035) for 6G72 V6 engines
- Timing chain tensioners (MB928515) for 4G69 engines
- Cylinder head refurbishment for all 4G63 variants
- Complete engine rebuilding with OEM-spec components
All units undergo dyno testing simulating real-world loads across all Eclipse power bands, with compression checks meeting Mitsubishi service standards for the entire series.
Warranty for Replacement Mitsubishi Eclipse Engines
12-month warranty on all rebuilt engines covering manufacturing defects and workmanship.
- Exclusions: 4G63 head gaskets in high-mileage units (known design limitation)
- Timing chain components in 4G69 engines beyond 100,000 miles
- Turbocharger components in modified engines
- Damage from improper installation or maintenance
Engine Finders is a price comparison website - warranty terms are set by our vetted UK suppliers. Final coverage varies by engine family and mileage.
Expert Tips for Choosing the Right Engine for Your Mitsubishi Eclipse
♻️ Mitsubishi Eclipse Engine Types Explained
- For 4G63 engines (1989-1999), reconditioned units with upgraded head gaskets (MR402037) recommended
- 6G72 V6 engines (1995-2006) need oil pump upgrades (MR502035) to address common failures
- 4G69 engines (2006-2012) benefit from timing chain tensioner replacement (MB928515)
- Rebuilt engines for turbo variants include upgraded internals specific to boost requirements
£ Mitsubishi Eclipse Replacement Engine Cost in the UK
- Used 4G63 engines cost £800-£1,200 but high failure risk due to head gasket issues
- Reconditioned 4G63 engines range £1,800-£2,400 with upgraded components
- Remanufactured 6G72 V6 engines cost £2,500-£3,200 due to complexity
- Save up to 40% vs main dealer through Engine Finders price comparison
🔍 Finding the Right Mitsubishi Eclipse Engine
- Check chassis code GA/GB/H to match correct engine generation for your Eclipse
- Verify engine code matches your VIN prefix to ensure ECU compatibility
- For turbo models, ensure correct turbocharger and ECU mapping for your variant
- Request service history for used engines, especially for 4G63 head gasket replacement
⛽ Mitsubishi Eclipse Petrol vs Diesel Engines
- Eclipse petrol engines (4G63/4G69) offer better performance but higher fuel consumption
- No diesel Eclipse variants were officially sold in UK market
- Petrol engines have higher maintenance costs due to turbocharger complexity
- Consider driving patterns - city use may benefit from smaller displacement engines
🔒 Quality Assurance & Warranty
- All Eclipse engines tested for compression and oil pressure before dispatch
- 4G63 engines include upgraded head gaskets (MR402037) to prevent future failures
- Warranty excludes known design flaws like 4G63 head gasket issues beyond 60k miles
- Engine Finders verifies all suppliers meet Mitsubishi technical standards
🛒 Compare & Save on Mitsubishi Eclipse Engines
- Compare quotes from multiple Eclipse specialists to find best value
- Consider reconditioned over used engines for 4G63 to avoid head gasket issues
- Timing chain components in 4G69 engines should be replaced during installation
- Get written warranty details specific to Eclipse common failure points
⚙️ Mitsubishi Eclipse Engine Works: How Experts Rebuild Engines
When your engine fails, Mitsubishi Eclipse 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. Complete Strip-Down & Inspection: Specialists disassemble the Eclipse engine completely, checking for wear patterns specific to 4G63/4G69/6G72 families. Critical measurements include cylinder bore wear, crankshaft journals, and connecting rod clearances. For turbo variants, the turbocharger is removed and tested separately for bearing wear and compressor wheel damage.
2. Block & Head Machining: The engine block is cleaned and magnafluxed for cracks. Cylinder heads are removed and checked for warping, especially critical for 4G63 aluminum heads prone to warping from head gasket failures. Valve seats are inspected and replaced if worn. For 4G63 engines, the head gasket surface is machined to ensure perfect flatness.
3. Component Replacement: Worn components are replaced with OEM-spec parts. For 4G63 engines, upgraded head gaskets (MR402037) and new head bolts are installed. Main and big end bearings are replaced with correct size shells. Timing chains, guides, and tensioners are replaced, especially critical for 4G69 engines with known tensioner issues.
4. Assembly with Torque Specifications: Engines are assembled using Mitsubishi torque specifications. Cylinder head bolts are tightened in sequence with new bolts where required. Oil passages are cleaned and tested for flow. For turbo variants, the oil feed and return lines are checked for proper routing and clearances.
5. Quality Testing & Break-In: Rebuilt engines undergo bench testing with oil pressure, coolant flow, and leak checks. A break-in procedure runs the engine through various RPM ranges to seat rings properly. For 4G63 engines, boost testing may be performed if equipped with turbocharger.
6. Final Inspection & Packaging: Completed engines are inspected for proper assembly, painted with protective coating, and packaged for shipping. All accessories like alternators, power steering pumps, and air conditioning compressors are checked for proper operation before packaging. Documentation includes service history and installation instructions.