Toyota Duet Engine ReplacementCompare Prices & Save

Toyota Duet engine replacement typically costs £950-£2,400 for a rebuilt unit supply-only, depending on whether you need the 1.0L 1SZ-FE or 1.3L 2SZ-FE engine. Supply & fit adds £350-£650 depending on garage location.

• 1SZ-FE 1.0L rebuilt: £950-£1,650 supply only
• 2SZ-FE 1.3L rebuilt: £1,100-£2,400 supply only
• Used engines available from £650 but verify mileage and condition
• Supply & fit service adds £350-£650 to engine price

The Toyota Duet uses two petrol engine codes: 1SZ-FE (1.0L) and 2SZ-FE (1.3L), both with VVT-i technology and shared with the Daihatsu Boon/Storia platform.

• 1SZ-FE: 1.0L, 68-70hp, fitted to X and S trims
• 2SZ-FE: 1.3L, 86-87hp, fitted to most variants including Aero and 4WD
• Both engines are compatible with Daihatsu Boon/Storia donor units
• Verify code via DVLA check or engine bay stamping

Yes, rebuilt Toyota Duet engines from reputable UK specialists are highly reliable when they include upgraded components addressing known failure points like timing guides or piston rings.

• Rebuilt units replace wear items: bearings, seals, timing components
• Upgraded piston rings address 2SZ-FE oil consumption issues
• All engines bench-tested before dispatch with 12-month warranty
• Choose suppliers specialising in JDM kei-car imports for best results

Supply-only rebuilt Toyota Duet engines typically dispatch within 3-5 working days; supply & fit services take 1-3 days for fitting once the engine arrives at your chosen garage.

• Engine build time: 2-4 working days after order confirmation
• UK delivery: 1-2 working days via specialist courier
• Garage fitting: 1 day for experienced JDM specialists
• Total downtime: 3-7 days depending on location and complexity

Yes, replacement Toyota Duet engines supplied through EngineMarket are calibrated for UK emissions standards and include documentation to support MoT compliance for grey import vehicles.

• Engines tested to meet Euro emissions requirements applicable at registration
• Documentation provided for V5C update and MoT tester reference
• JDM-spec ECUs may require adaptation for UK fuel and emissions
• Specialists ensure compatibility with UK diagnostic equipment

Yes, Toyota Duet engines are fully compatible with Daihatsu Boon and Storia donor units as they share the same platform, engine codes and mounting points.

• 1SZ-FE and 2SZ-FE codes are identical across Duet/Boon/Storia
• Mounting points, wiring and ECU calibration are platform-shared
• Using Boon donors can reduce cost and improve parts availability
• Confirm trim-level compatibility for ancillaries like alternator or AC

Every Toyota Duet engine supplied through EngineMarket includes a minimum 12-month unlimited mileage warranty covering parts and labour at any UK garage.

• 12-month unlimited mileage warranty as standard across network
• Coverage includes parts and labour for warranty claims
• Transferable warranty if you sell the vehicle within coverage period
• Some suppliers offer extended 24-month options at additional cost

Key signs include excessive oil consumption, persistent cold-start rattling, loss of power with check engine lights, or blue/white exhaust smoke indicating internal wear.

• Oil consumption over 1L per 1,000 miles suggests piston ring wear
• Cold-start timing chain rattle indicates guide or tensioner failure
• Check engine lights with VVT-i codes may signal solenoid issues
• Compression test and leak-down test confirm internal condition

EngineMarket's postcode checker connects you with vetted UK garages experienced in JDM kei-car imports like the Toyota Duet, offering supply & fit services nationwide.

• Enter your postcode to find certified JDM specialists nearby
• All garages vetted for kei-car expertise and MoT compliance knowledge
• Quotes include engine delivery, fitting, fluids and initial road test
• Mobile fitting available in some regions for minimal disruption

Prices displayed on EngineMarket are typically VAT-inclusive for consumer customers; business customers can request VAT-exclusive invoices for reclaim purposes.

• Consumer quotes include 20% VAT by default
• Business customers provide VAT number for exclusive pricing
• Supply-only and supply & fit quotes both clarify VAT status
• Always confirm final invoice breakdown before accepting a quote