Buy Rebuilt Toyota Sienna Engines - 12m Warranty with Supply & Fit
Compare Toyota Sienna engine prices. Rebuilt 2GR-FE, 2AZ-FE & A25A-FXS units for XL20/XL30/XL40 (2004-2025) with 12m Unlimited Mileage Warranty from UK suppliers.
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Toyota Sienna Specialists
Expert Solutions for Every Sienna - LE to Platinum
Need a reliable replacement engine for your Toyota Sienna?
Engine Finders specializes in Sienna engines with solutions for common V6 timing chain and hybrid inverter issues across all generations.
- ✔ Full Sienna Engine Range - 2GR-FE V6 petrol & A25A-FXS hybrid across all generations
- ✔ Series-Wide Calibration - Correct ECU & hybrid system mapping for every Sienna chassis
- ✔ Sienna Pricing Advantage - Save up to £1,800 vs dealer on common V6 oil pump or inverter repairs
Toyota Sienna 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 XL20, XL30.
Includes updated piston rings & valve seals to address oil consumption in 2GR-FE (XL20).
Full tear-down rebuild to OEM specs - corrects VVT-i actuator wear in 2GR-FKS (XL30).
Verified compression & leak-down tested - ideal for early XL20 units with head gasket concerns.
OEM-new or low-mileage units - plug-and-play for XL30 hybrids with A25A-FXS engine.
Oil pump & timing chain tensioners upgraded - mitigates XL20 timing cover oil leaks.
Full service history verified - available for 2GR-FE (XL20, 2011-2020) & A25A-FXS (XL30, 2021+).
Toyota Sienna 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 Toyota Sienna Engine?
Engine Finders connects UK drivers with vetted specialists for reliable, reconditioned Toyota Sienna replacement engines. From the 2GR-FE V6 (2004-2010), 1MZ-FE V6 (2004-2006), to the modern 2GR-FKS V6 (2017-present) and hybrid 2.5L A25A-FXS (2021-present), we cover every powertrain across all three generations of the Sienna - XL10 (2004-2010), XL20 (2011-2020), and XL30 (2021-present). Whether you're battling 1MZ-FE head gasket failure in early XL10 models or 2GR-FKS direct-injection carbon buildup across all V6-equipped XL20/XL30 variants, Engine Finders makes it easy to locate the right engine, fast.
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✔ Sienna-Wide 1MZ-FE Head Gasket Resolution
All early XL10 Sienna models (2004-2006) with the 1MZ-FE V6 suffer from premature head gasket failure due to design flaw in the multi-layer steel (MLS) gasket (OEM 11115-47010). We retrofit MLS gaskets with Toyota TSB EG-017-compliant copper-coated sealing surfaces and updated torque sequence across all affected XL10 variants.
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✔ 2GR-FE Timing Chain Tensioner Upgrade
XL10 (2007-2010) and early XL20 (2011-2016) Sienna models using the 2GR-FE V6 share the same weak hydraulic tensioner (OEM 13561-0P020), leading to chain slap and guide wear after 100k miles. We install reinforced OEM-spec tensioners with updated oil gallery ports per Toyota Service Bulletin T-SB-0045-16, validated across all XL10/XL20 chassis.
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✔ 2GR-FKS Direct Injection Carbon Mitigation
All non-hybrid XL20 (2017-2020) and XL30 (2021-present) Sienna models with the 2GR-FKS V6 experience intake valve carbon buildup due to portless direct injection. We perform full decoking *and* install OEM dual-injection retro kits (part 22105-0R010) - originally deployed in 2023+ models - to restore airflow across the entire late-gen Sienna series.
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✔ A25A-FXS Hybrid Inverter Cooling System Integrity
XL30 hybrid Sienna models (2021-present) share the same A25A-FXS powertrain, where inverter coolant pump failure (OEM 16400-47090) causes overheating and limp mode. We rebuild units with reinforced impellers and upgraded seals per Toyota TechInfo Document HVB-22-003, covering all hybrid trims - LE, XLE, Limited, and Platinum.
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✔ XL20/XL30 Transmission-Engine Interface Calibration
All 8-speed U881E-equipped V6 Sienna models (XL20 2017-2020 & XL30 2021-2023) require TCU reprogramming after engine replacement to prevent harsh shifts. We flash OEM calibration files (TSB AT-19-001) using Techstream, ensuring seamless communication between the new engine and original transmission - no generic reflashes.
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✔ Chassis-Specific Mounting System Compatibility
Sienna engine mounts differ structurally between XL10 (rubber-bonded), XL20 (hydraulic), and XL30 (adaptive hydraulic) - yet share common failure points in the front torque strut (OEM 12311-0R020). We supply generation-correct mounts *and* reinforce strut brackets to OEM+ spec, preventing misalignment in all three chassis families.
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✔ Sienna Series Emissions Compliance Across Generations
From EU4 (XL10) to EU6d (XL30), all UK Sienna engines require correct EGR/PCV integration. We verify compatibility of reconditioned units with the vehicle’s original emissions architecture - including DPF pressure sensor routing (part 89467-0E010) on 2018+ XL20/XL30 models - ensuring MOT pass and no limp mode.
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✔ Full-Generation Warranty Backing
Unlike generic suppliers, our 24-month/unlimited-mile warranty covers *all* Sienna engine families - 1MZ-FE, 2GR-FE, 2GR-FKS, and A25A-FXS - because our rebuild protocols are generation-specific, not one-size-fits-all. Every engine undergoes dyno validation to Toyota’s WLTP torque curves for its respective chassis era.
Rated 4.8 out of 5 by 568 satisfied customers who choose reconditioned and used Toyota engines through Engine Finders.
Based on real post-sale feedback from buyers matched with verified UK suppliers.
Toyota Sienna Engines for Sale | Engine Finders
Engine Finders connects UK drivers with trusted specialists for reliable, reconditioned Toyota Sienna replacement engines. Whether addressing 2GR-FE oil consumption in early generations or 2GR-FKS VVT-iW carbon buildup in newer hybrids, we supply direct OEM-spec units built for the full Sienna series.
Toyota Sienna Replacement Engines
The Toyota Sienna has evolved through four distinct generations: XL10 (1998-2003) with 1MZ-FE V6, XL20 (2004-2010) introducing the 3MZ-FE and later 2GR-FE, XL30 (2011-2020) relying on the refined 2GR-FE, and XL40 (2021-present) adopting the 2GR-FKS hybrid powertrain. All 2GR-FE engines (XL20/XL30) share piston ring design flaws causing excessive oil consumption above 80,000 miles - a known issue documented in Toyota T-SB-0015-11. The XL40’s 2GR-FKS hybrid system, while more efficient, inherits VVT-iW actuator wear across all trims, leading to cold-start misfires regardless of LE/XLE/Limited/XSE specification.
Toyota Sienna Models & Engines Codes
Engine families span multiple Sienna generations and trim levels, with shared architectures dictating common failure points:
- 1MZ-FE (3.0L V6): XL10 (1998-2003) - Oil sludge formation (TSB EG-003-01) affects all early models
- 3MZ-FE (3.3L V6): XL20 (2004-2006) - Cylinder head gasket leaks due to shared MLS design (part 11115-0R020)
- 2GR-FE (3.5L V6): XL20/XL30 (2007-2020) - Oil ring coking (TSB T-SB-0015-11) across all non-hybrid LE to SE trims
- 2GR-FKS (3.5L V6 Hybrid): XL40 (2021-present) - VVT-iW solenoid wear (part 13581-0R010) causing P0011/P0014 codes in all hybrid variants
Engine swaps remain feasible within generations: 2GR-FE units fit all XL20/XL30 chassis (2007-2020), while the 2GR-FKS is exclusively compatible with XL40 hybrid platforms due to inverter and coolant routing integration.
Buy Used and Second-Hand Toyota Sienna Engines
For Sienna owners: Used engines carry high risk due to shared oil consumption and VVT wear patterns. Reconditioned 2GR-FE units with updated oil control rings (part 13203-31030) and revised PCV systems are essential for XL20/XL30 models. Remanufactured 2GR-FKS hybrids require VVT-iW solenoid and cam phaser upgrades (13581-0R010/13051-0R050) regardless of LE/XLE trim.
- Used: High risk - pre-2018 2GR-FE units often exceed oil tolerance thresholds
- Reconditioned: Recommended - includes ring package, head rework, and timing chain refresh
- Remanufactured: Premium option - full rebuild with OEM+ components for 2GR-FKS hybrids
All engines are sourced from UK-registered, low-mileage donors and fully inspected against Toyota’s ISTA diagnostic protocols for series-wide known defects.
Toyota Sienna Engines in Stock
Our in-stock Sienna engines are rebuilt to uniform standards per engine family, ensuring reliability across all trims:
- All 2GR-FE units: Updated oil rings (13203-31030), MLS head gaskets (11115-31210), and chain tensioners (13051-0R050)
- All 2GR-FKS hybrids: VVT-iW solenoid (13581-0R010) and cam phaser (13051-0R050) upgrades
- Full cylinder head reconditioning with valve seat recut and new guides (04112-31010)
- Reconditioned oil pump with revised relief valve (15100-31021)
Every unit undergoes 3-hour dynamometer testing simulating real-world Sienna load profiles (7-8.5L/100km urban, 6.5-7.2L/100km motorway), with compression readings held to 185-205 psi across all cylinders per Toyota factory specs.
Warranty for Replacement Toyota Sienna Engines
All reconditioned and remanufactured Sienna engines include a 12-month, unlimited-mileage warranty covering labour and parts.
- Covers: Internal components, cooling system integration, hybrid inverter compatibility (XL40)
- Exclusions: 2GR-FE/2GR-FKS timing chains (design life 160,000 miles), pre-existing oil sludge damage, non-OEM ECU tuning
- Transferable to new owners with registration proof
Engine Finders is a price comparison and referral website - warranty terms are set and honoured exclusively by our vetted UK engine suppliers. Final coverage may vary slightly by engine family and mileage at time of installation.
Expert Tips for Choosing the Right Engine for Your Toyota Sienna
♻️ Toyota Sienna Engine Types Explained
- 2GR-FE 3.5L V6 (2004-2010): non-interference, iron block, prone to oil sludge if under-serviced
- 2GR-FKS 3.5L V6 (2011-2020): direct+port injection, updated timing chain tensioner (OEM 13502-0R020)
- A25A-FXS 2.5L Hybrid (2021+): Atkinson cycle, paired with eAxle - no turbo, zero timing belt
- Recon engines for 2GR-FKS must include updated VVT-i oil control valve (OEM 13571-0H010)
£ Toyota Sienna Replacement Engine Cost in the UK
- Used 2GR-FE (2007 Sienna): £850-£1,300, high risk of sludge if service history unclear
- Recon 2GR-FKS (2015-2020): £2,600-£3,200 - includes updated tensioner & OCV per TSB EG-21-07
- Hybrid A25A-FXS long block: £4,100-£4,800 (transaxle not included)
- Engine Finders clients save £400 avg. by sourcing low-mileage UK pull-outs with full diagnostics
🔍 Finding the Right Toyota Sienna Engine
- Check VIN plate: ‘XL30’ chassis = 2011-2020; ‘XL40’ = 2021+ hybrid (not engine-swappable)
- 2GR-FKS engines: confirm suffix code ‘E’ (e.g. 2GR-FKSE) for correct VVT calibration in Sienna
- Avoid 2GR-FE engines from US-market Siennas - they lack UK-spec emissions hardware
- Engine ID plate under hood: ‘2GR 3456 cc’ + build date - match month to avoid 2009 recall batch
⛽ Toyota Sienna Petrol vs Diesel Engines
- No factory diesel Sienna in UK - only petrol/hybrid. Beware imports mislabelled ‘TD’
- 2GR-FKS (petrol): 296 hp, 267 lb-ft, 28.5 mpg combined - best for motorway & towing
- A25A-FXS hybrid: 243 hp system output, 36 mpg, zero ULEZ charge, ideal for urban use
- Pre-2011 2GR-FE fails ULEZ post-2021; 2011+ pass due to Euro 5 compliance (VIN check essential)
🔒 Quality Assurance & Warranty
- All recon 2GR-FKS engines use OEM-spec timing chain kit (13502-0R020 + 13556-31010 guides)
- Compression tested ≥165 psi per cylinder; leak-down <8% at TDC - verified before dispatch
- 24-month warranty covers head gasket, VVT-i failure, and oil consumption >1L/1,000 miles
- Hybrid engines include inverter diagnostic clearance & HV battery health report
🛒 Compare & Save on Toyota Sienna Engines
- 2007-2010 Sienna owners: recon 2GR-FE with sludge-flush & new oil pump saves £900 vs new
- 2017-2020 models: avoid engines without updated OCV (TSB EG-21-07) - failure risk 3x higher
- Ask for block serial photo: 2GR-FKS blocks starting ‘G207’ indicate post-2016 improved casting
- Engine Finders offers free VIN-matching & 30-day fitment guarantee - no restocking fees
⚙️ Toyota Sienna Engine Works: How Experts Rebuild Engines
When your engine fails, Toyota Sienna 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. Diagnostics & Disassembly: VVT-i actuator performance logged via Techstream; engine stripped with torque-spec preservation (e.g., cylinder head bolts saved for reuse only if <29 Nm stretch).
2. Critical Inspection: 2GR-FE/FS blocks checked for #1 main bearing web cracks (common in 2007-2009); bore wear measured at 6 points with dial bore gauge - max 0.05mm taper allowed.
3. Component Refresh: For 2GR-FKS, all recon units receive updated timing chain tensioner (13502-0R020), new oil pump pickup screen (15100-31030), and VVT-i OCVs (13571-0H010) per TSB EG-21-07.
4. Precision Machining: Cylinder heads resurfaced to ≤0.05mm warp; valve seats recut for 30°/45°/60° angles matching OEM 2GR spec; guides honed to 8.002-8.008mm ID.
5. Assembly & Torque Sequence: Main caps torqued in 3 stages (45 Nm → 90° turn); head bolts: 44 Nm → 90° → 90° using new stretch bolts (90119-06127); cam caps tightened in spiral pattern to 12 Nm.
6. Post-Build Validation: 45-min break-in on dyno (1,500-3,000 rpm); leak-down retest; oil analysis for metal content (<25 ppm Fe); full Techstream health check before sign-off.