Jimmy
“Thanks to EngineMarket, I saved over £1,200 on my engine replacement and got matched with a great local specialist within the hour.”
Get quotes today from trusted UK Honda Clarity engine specialists. Compare prices on reconditioned, rebuilt and used engines - supply & fit available.
-> Rebuilt units from £1,395 · Common codes: LEB3, LEB31, LEB3A
-> Rebuilt units from £1,395 · Common codes: LEB3, LEB31
-> Rebuilt units from £1,595 · Common codes: LEB3A, LEB3, LEB31
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Get Instant Quotes from Honda Engine Specialists Across the UK - 100% free, no obligation. Most replacements completed within 3-5 days.
Most replacements completed within 3-5 days.
Typical UK rebuilt Honda Clarity engine costs by variant, failure cause, code and size - compare market ranges for grey import PHEV replacements.

Customer Reviews
Rated 4.8 out of 5 by 1,081 verified customers who sourced reconditioned and used Honda Clarity engines through EngineMarket.
Jimmy
“Thanks to EngineMarket, I saved over £1,200 on my engine replacement and got matched with a great local specialist within the hour.”
Pete
“Got three quotes within an hour and chose the best deal easily. The whole process was quick, clear and stress-free.”
Sophie
“I wasn't sure what I needed, but they helped me identify the right engine and connected me with a trusted garage.”
Thanks to EngineMarket, I saved over £1,200 on my engine replacement and got matched with a great local specialist within the hour.”
- Jimmy, London
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From the entry-level Plug-in Hybrid Base to the fully-equipped Touring trim, our network of UK Honda Clarity engine specialists helps you compare rebuilt, reconditioned and used engine prices for grey import models. Typical price range for a rebuilt LEB3 unit with 12-month warranty - supply & fit available nationwide.
A full alphabetical listing of every Honda Clarity trim covered by our network. All entries link to a dedicated variant page, where prices are further broken down by engine code, model year, and condition type. Click a live link to compare quotes.
Diesel Variants
Petrol Variants
Every engine code fitted to the Honda Clarity 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.
Extracted from electrified powertrains and hybrid engine families used in Honda Clarity variants.
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 Honda Clarity engine specialists. Every rebuilt engine comes with a minimum 12‑month unlimited mileage warranty.
The Honda Clarity PHEV generally demonstrates strong baseline reliability, but its complex 1.5L LEB3, LEB31, and LEB3A Atkinson-cycle hybrid powertrains face predictable wear points under prolonged UK grey-import usage. High-voltage interface stress, thermal cycling in charging modules, and e-CVT alignment fatigue dominate replacement enquiries. Every rebuilt engine supplied through EngineMarket includes upgraded internal components designed to address the original failure point - plus a minimum 12-month unlimited mileage warranty. Use the cost breakdowns below to decide whether a targeted repair or full replacement delivers the best value for your specific Clarity.
Every rebuilt engine includes a minimum 12-month unlimited mileage warranty.
Why LEB3 Hybrid Engines Fail Prematurely
Honda Clarity Plug-in Hybrid Base & Touring (2017-2021, LEB3, LEB31, LEB3A)
50,000 - 75,000 miles
Hybrid control module calibration drift combined with inverter thermal degradation causes the petrol engine to over-rev without effectively transferring torque to the driveline, creating a "rubber-band" drivability loss.
| Repair Tier | Dealer Price | Specialist Price | What It Involves | Longevity / Suitability |
|---|---|---|---|---|
Minor - Software Calibration & Inverter Reset Minor | £250 - £450 | £150 - £250 | Official Honda diagnostic flash, inverter thermal paste replacement, hybrid control logic reset | Viable only if caught before mechanical strain occurs; typically extends life by 15-20k miles |
Full Replacement - Rebuilt LEB3 PHEV Engine Best Value | £6,000 - £8,500 | £2,800 - £4,200 | Supply & fit of rebuilt Atkinson-cycle engine with upgraded hybrid control interfaces, bench testing, and 12-month warranty | Permanent resolution; addresses inverter wear, recalibrated for UK grey-import EV cycling |
If the high-rev symptom appears only during cold starts or short EV bursts, a specialist diagnostic reset and inverter refresh may suffice. However, if the Clarity has logged persistent hybrid system fault codes or exhibits continuous power loss under acceleration, the internal inverter and planetary gears have likely suffered fatigue. In this scenario, a full rebuilt LEB3 unit with verified e-CVT sync is significantly more cost-effective than chasing intermittent electrical faults.
Hybrid powertrain failures on the Honda Clarity are rarely sudden - they develop through predictable calibration drift, thermal stress, and interface fatigue. EngineMarket connects you directly with UK grey-import specialists who understand LEB3, LEB31, and LEB3A architecture inside out. Instead of paying main dealer premiums for diagnostic loops or incompatible second-hand units, compare verified rebuilt and reconditioned engine prices with nationwide delivery and hybrid interface verification. Every unit arrives bench-tested with upgraded components addressing the original failure mode, backed by a minimum 12-month unlimited mileage warranty. Get back on the road without compromising on hybrid performance or budget.
Compare Honda Clarity Engine Replacement Prices Now →The Honda Clarity PHEV generally demonstrates strong baseline reliability, but its complex 1.5L LEB3, LEB31, and LEB3A Atkinson-cycle hybrid powertrains face predictable wear points under prolonged UK grey-import usage. High-voltage interface stress, thermal cycling in charging modules, and e-CVT alignment fatigue dominate replacement enquiries. Every rebuilt engine supplied through EngineMarket includes upgraded internal components designed to address the original failure point - plus a minimum 12-month unlimited mileage warranty. Use the cost breakdowns below to decide whether a targeted repair or full replacement delivers the best value for your specific Clarity.
Honda Clarity Plug-in Hybrid Base & Touring (2017-2021, LEB3, LEB31, LEB3A)
50,000 - 75,000 miles
Hybrid control module calibration drift combined with inverter thermal degradation causes the petrol engine to over-rev without effectively transferring torque to the driveline, creating a "rubber-band" drivability loss.
Official Honda diagnostic flash, inverter thermal paste replacement, hybrid control logic reset
Supply & fit of rebuilt Atkinson-cycle engine with upgraded hybrid control interfaces, bench testing, and 12-month warranty
If the high-rev symptom appears only during cold starts or short EV bursts, a specialist diagnostic reset and inverter refresh may suffice. However, if the Clarity has logged persistent hybrid system fault codes or exhibits continuous power loss under acceleration, the internal inverter and planetary gears have likely suffered fatigue. In this scenario, a full rebuilt LEB3 unit with verified e-CVT sync is significantly more cost-effective than chasing intermittent electrical faults.
Hybrid powertrain failures on the Honda Clarity are rarely sudden - they develop through predictable calibration drift, thermal stress, and interface fatigue. EngineMarket connects you directly with UK grey-import specialists who understand LEB3, LEB31, and LEB3A architecture inside out. Instead of paying main dealer premiums for diagnostic loops or incompatible second-hand units, compare verified rebuilt and reconditioned engine prices with nationwide delivery and hybrid interface verification. Every unit arrives bench-tested with upgraded components addressing the original failure mode, backed by a minimum 12-month unlimited mileage warranty. Get back on the road without compromising on hybrid performance or budget.
Compare Honda Clarity Engine Replacement Prices Now →Disclaimer: All prices are indicative UK market ranges based on historical quote data and repair requests from our network of engine specialists. Dealer pricing is estimated based on published main dealer labour rates and genuine OEM parts pricing. Specialist pricing reflects actual quote data from EngineMarket’s UK network. Actual costs vary depending on damage severity, vehicle condition, variant, and workshop location within the UK. Use our free comparison tool to get tailored quotes for your specific Honda Clarity and engine code. Every engine supplied through EngineMarket carries a minimum 12‑month unlimited mileage warranty - always confirm exact terms with your chosen supplier.
Every Honda Clarity engine type is available through our UK network with typical price ranges based on LEB3 variant, chassis code and budget.
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 Honda Clarity within hours.
Every displacement fitted to the Honda Clarity is listed below with compatible engine codes, production years and common failure notes specific to UK grey import PHEV variants.
The 1.5L Atkinson-cycle plug-in hybrid powertrain is the sole engine option fitted to the Honda Clarity across its 2017-2021 production run, combining a naturally aspirated petrol unit with dual electric motors and an e-CVT transmission for seamless hybrid operation. This LEB3-series engine was engineered specifically for PHEV applications, prioritising thermal efficiency and high-voltage system integration over conventional performance metrics, making it the defining powertrain for UK grey import Clarity owners seeking replacement options. Not sure which engine size your Honda Clarity needs? Enter your registration number above - we'll identify the exact displacement, engine code and compatible replacement options instantly. All engines supplied through EngineMarket include a minimum 12‑month unlimited mileage warranty from UK Honda Clarity specialists.
| Engine Code(s) | LEB3, LEB31, LEB3A |
| Compatible Models (UK) | Clarity Plug-in Hybrid Base (2017-2021), Clarity Plug-in Hybrid Touring (2017-2021), Clarity PHEV FWD e-CVT grey import variants |
HV-mode high-rev power loss, charging port sync failures, 12V accessory battery drain affecting hybrid enable
Not sure which engine size your Honda Clarity needs? Enter your registration number above - we'll identify the exact displacement, engine code and compatible replacement options instantly. All engines supplied through EngineMarket include a minimum 12‑month unlimited mileage warranty from UK Honda Clarity specialists.
Fuel Type
Choose your Honda Clarity engine by fuel type to compare realistic replacement prices, known issues, and compatible UK supply options - from early 2017 LEB3 Base to the latest 2021 LEB3A Touring PHEV grey import variants.
The Honda Clarity was exclusively offered as a 1.5L Atkinson-cycle plug-in hybrid across its 2017-2021 production, with all UK units sourced as grey imports requiring specialist LEB3-series engine compatibility verification.
Not sure which fuel type your Honda Clarity 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 Honda Clarity specialists.
This section covers all major engine changes across the Honda Clarity's 2017-2021 production timeline, organised so grey import owners can quickly identify their LEB3-series engine and compare rebuilt hybrid powertrain prices from UK specialists.
Not sure which year your Honda Clarity 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 Honda Clarity specialists.
FAQ
Question 1
Honda Clarity engine replacement costs typically range from £995 for a used LEB3 unit to £2,800 for a fully rebuilt PHEV engine with upgraded hybrid interface components. Supply-only prices exclude fitting; supply & fit adds £450-£850 depending on specialist location. Grey import verification and e-CVT compatibility checks are included with all EngineMarket quotes.
Key points
Question 2
Only LEB3, LEB31, and LEB3A engine codes are compatible with Honda Clarity PHEV models sold as UK grey imports between 2017-2021. These 1.5L Atkinson-cycle hybrid engines integrate with the e-CVT transmission and high-voltage battery system. Enter your registration to verify your exact LEB3 sub-code before ordering any replacement unit.
Key points
Question 3
Honda Clarity PHEV owners most frequently report HV-mode high-rev power loss, charging port sync failures, and 12V accessory battery drain affecting hybrid system enable. These issues typically appear between 40,000-75,000 miles on grey import vehicles. Rebuilt LEB3 engines from EngineMarket include upgraded components addressing these documented failure patterns with full warranty coverage.
Key points
Question 4
Rebuilt Honda Clarity engines offer superior value for grey import PHEV owners because they include upgraded hybrid interface components addressing known LEB3 failure points, plus a 12-month unlimited mileage warranty. Used engines are cheaper upfront but carry uncertain provenance and no guarantee of e-CVT compatibility or charging system integrity post-installation.
Key points
Question 5
Honda Clarity engine replacement typically completes within 3-5 working days at UK grey import specialist garages, including e-CVT alignment verification and hybrid system diagnostic reset. Supply-only engines dispatch within 24-48 hours; supply & fit appointments require pre-booking to secure hybrid-certified technician availability for your specific LEB3 sub-code.
Key points
Question 6
All Honda Clarity replacement engines supplied through EngineMarket include a minimum 12-month unlimited mileage warranty covering the LEB3 engine assembly, e-CVT interface components, and hybrid control module communication protocols. Extended 24-month coverage is available for rebuilt units. Warranty terms explicitly cover grey import compliance and high-voltage system integration failures.
Key points
Question 7
Yes, EngineMarket connects Honda Clarity owners with UK grey import specialist garages offering complete supply and fit service for LEB3, LEB31, and LEB3A engines. The service includes engine delivery, e-CVT alignment verification, hybrid system calibration, fault code reset, and post-installation road testing with MOT compliance documentation for your imported vehicle.
Key points
Question 8
Your Honda Clarity engine code (LEB3, LEB31, or LEB3A) appears stamped on the engine block near the transmission bell housing, on the vehicle identification plate under the bonnet, or within your grey import documentation. Enter your registration number above for instant VIN-to-engine-code verification compatible with Clarity PHEV hybrid systems.
Key points
Question 9
Honda Clarity engine replacement rarely affects insurance premiums when using like-for-like LEB3 codes with documented grey import compliance. Most UK insurers accept rebuilt or reconditioned engines if fitted by certified specialists with warranty documentation. Always notify your provider of the replacement and supply fitment certificates to maintain policy validity for your imported PHEV.
Key points
Question 10
Replacing a Honda Clarity hybrid engine is worthwhile when the vehicle has strong bodywork, low chassis mileage, and verified grey import history. Rebuilt LEB3 engines from £1,395 with 12-month warranty often cost less than dealer diagnostics for intermittent hybrid faults. Compare replacement cost against Clarity's residual value and your intended ownership period before deciding.
Key points
Why Choose Us
Join thousands of UK drivers who compare Honda Clarity engine prices through our network of trusted specialists - every rebuilt and reconditioned unit backed by a minimum 12‑month unlimited mileage warranty and nationwide delivery.
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UK Engine Replacement Services for Honda Clarity
Covering every PHEV grey import variant, with supply‑only or full supply & fit available nationwide.

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