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Jimmy
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“Thanks to EngineMarket, I saved over £1,200 on my engine replacement and got matched with a great local specialist within the hour.”
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Toyota ENGINE MARKETPLACE
Toyota Duet Engine ReplacementCompare Prices & Save
Get quotes today from trusted UK Toyota Duet engine specialists. Compare prices on reconditioned, rebuilt and used engines - supply & fit available nationwide.
Duet 1.0L Petrol Engines - from £950 to £1,850
-> Rebuilt units from £950 · Common codes: 1SZ-FE, 1SZ-FE VVT-i
Duet 1.3L Petrol Engines - from £1,100 to £2,400
-> Rebuilt units from £1,100 · Common codes: 2SZ-FE, 2SZ-FE VVT-i
Duet Platform-Compatible Engines - from £850 to £2,100
-> Rebuilt units from £850 · Common codes: 1SZ-FE, 2SZ-FE (Boon/Storia compatible)
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● Instant Quotes · No Obligation · 100% Free · Reconditioned · Rebuilt · Used · Supply & Fit Available · UK-Wide Network|● Instant Quotes · No Obligation · 100% Free · Reconditioned · Rebuilt · Used · Supply & Fit Available · UK-Wide Network|● Instant Quotes · No Obligation · 100% Free · Reconditioned · Rebuilt · Used · Supply & Fit Available · UK-Wide Network|● Instant Quotes · No Obligation · 100% Free · Reconditioned · Rebuilt · Used · Supply & Fit Available · UK-Wide Network|
How It Works
3 Simple Stepsto Finding the Best Toyota Duet Replacement Engine
Get Instant Quotes from Toyota Engine Specialists Across the UK - 100% free, no obligation. Most replacements completed within 3-5 days.
Most replacements completed within 3-5 days.
12-Month Warranty
Supply & Fit Available
Nationwide Delivery
Trusted UK Suppliers
Live UK Engine Market Data
What Are UK Drivers Paying for Toyota Duet Engine Replacement?
The table below shows typical UK rebuilt engine costs across Toyota Duet variants - compare failure causes, engine codes, fuel types, and price ranges to benchmark what UK drivers are paying.
Average Market Prices
- Toyota Duet (2007-2012) Aero 1.3L2007-2012£1,400-£2,400Oil sludge buildup2SZ-FEPetrol 1.3L
- Toyota Duet (1998-2002) X 1.0L1998-2002£950-£1,650Timing chain guide wear1SZ-FEPetrol 1.0L
- Toyota Duet (1998-2002) X 1.3L1998-2002£1,100-£1,950Oil consumption piston rings2SZ-FEPetrol 1.3L
- Toyota Duet (2003-2006) S 1.0L2003-2006£1,050-£1,750VVT-i solenoid clogging1SZ-FEPetrol 1.0L
- Toyota Duet (2003-2006) S 1.3L2003-2006£1,200-£2,100PCV valve oil burn2SZ-FEPetrol 1.3L
- Toyota Duet (2007-2012) G 1.3L2007-2012£1,350-£2,400Timing tensioner failure2SZ-FEPetrol 1.3L
Last updated: 31 May, 08:53
Customer Reviews
Trusted by Toyota Duet OwnersAcross the UK
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Rated 4.8 out of 5 by 1,081 verified customers who sourced reconditioned and used Toyota Duet engines through EngineMarket.
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“Got three quotes within an hour and chose the best deal easily. The whole process was quick, clear and stress-free.”
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“I wasn't sure what I needed, but they helped me identify the right engine and connected me with a trusted garage.”
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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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Models We Cover
Toyota Duet Engine ReplacementAll Variants Covered
Core Petrol Range
Specs68hp
Years1998-2012
Rebuilt£950-£1,650
Specialist & Platform Range
Variant Directory
All Toyota Duet Variants - Engine Replacement Coverage
A full alphabetical listing of every Toyota Duet 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.
Petrol Variants
AeroCLGSXX 4WD
Engine Codes
Toyota Duet Engine CodesFull Technical Specifications & Replacement Guide
Every engine code fitted to the Toyota Duet 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.
Petrol Engines
Extracted from detailed petrol and performance engine families across Toyota Duet variants.
Can't find your engine code?
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 Toyota Duet engine specialists. Every rebuilt engine comes with a 12‑month unlimited mileage warranty.
Common Problems
Toyota Duet Engine Problems
What It Costs to Fix & When Replacement Makes Sense
Every rebuilt engine includes a minimum 12-month unlimited mileage warranty.
1. 2SZ-FE Oil Consumption
Why 1.3L Duet Engines Burn Oil
Affected Models
Toyota Duet X, S, G, CL, Aero (1998-2012, 2SZ-FE 1.3L)
Typical Failure Mileage
70,000-100,000 miles
Root Cause
Piston ring wear combined with PCV valve failure allows oil to enter the combustion chamber, increasing consumption and exhaust smoke.
Repair Options & Estimated Costs (UK ranges)
| Repair Tier | Dealer Price | Specialist Price | What It Involves | Longevity / Suitability |
|---|---|---|---|---|
Minor - PCV Valve & Seal Replacement Minor | £400 - £750 | £250 - £450 | Replace PCV valve, update seals, flush crankcase | May reduce oil burn if caught early; not a fix for worn rings |
Intermediate - Piston Ring Service Intermediate | £1,800 - £3,200 | £1,200 - £2,100 | Strip top end, replace rings, hone cylinders, reassemble | Effective if block is sound; labour-intensive for small-displacement engine |
Full Replacement - Rebuilt / Reconditioned Engine Best Value | £3,500 - £5,800 | £1,100 - £2,400 | Supply & fit rebuilt 2SZ-FE with upgraded rings, bench-tested, 12-month warranty | Most cost-effective solution for high-mileage Duet; restores reliability |
Our Recommendation
Best next step for 2sz-fe oil consumption
On a Toyota Duet valued at £1,500-£3,500, a full rebuilt engine from £1,100 often represents better long-term value than an intermediate ring service. We recommend getting quotes for a reconditioned 2SZ-FE with upgraded piston rings and PCV system.
Don't Let Engine Failure Write Off Your Toyota Duet
The Toyota Duet's compact petrol engines are efficient but demand proactive maintenance. Whether you're facing oil consumption, timing noise, or VVT-i faults, EngineMarket makes it simple to compare prices from trusted UK Toyota Duet specialists. Every rebuilt engine includes upgraded components addressing the original failure point, plus a 12‑month unlimited mileage warranty and nationwide delivery. Compare quotes today and get back on the road without the main dealer premium.
Compare Toyota Duet Engine Replacement Prices Now →Toyota Duet Engine Problems
What It Costs to Fix & When Replacement Makes Sense
Affected Models
Toyota Duet X, S, G, CL, Aero (1998-2012, 2SZ-FE 1.3L)
Typical Failure Mileage
70,000-100,000 miles
Root Cause
Piston ring wear combined with PCV valve failure allows oil to enter the combustion chamber, increasing consumption and exhaust smoke.
Minor - PCV Valve & Seal Replacement
Dealer
£400 - £750
Specialist
£250 - £450
Replace PCV valve, update seals, flush crankcase
May reduce oil burn if caught early; not a fix for worn rings
Intermediate - Piston Ring Service
Dealer
£1,800 - £3,200
Specialist
£1,200 - £2,100
Strip top end, replace rings, hone cylinders, reassemble
Effective if block is sound; labour-intensive for small-displacement engine
Full Replacement - Rebuilt / Reconditioned Engine
Dealer
£3,500 - £5,800
Specialist
£1,100 - £2,400
Supply & fit rebuilt 2SZ-FE with upgraded rings, bench-tested, 12-month warranty
Most cost-effective solution for high-mileage Duet; restores reliability
Our Recommendation
Best next step for 2sz-fe oil consumption
On a Toyota Duet valued at £1,500-£3,500, a full rebuilt engine from £1,100 often represents better long-term value than an intermediate ring service. We recommend getting quotes for a reconditioned 2SZ-FE with upgraded piston rings and PCV system.
Don't Let Engine Failure Write Off Your Toyota Duet
The Toyota Duet's compact petrol engines are efficient but demand proactive maintenance. Whether you're facing oil consumption, timing noise, or VVT-i faults, EngineMarket makes it simple to compare prices from trusted UK Toyota Duet specialists. Every rebuilt engine includes upgraded components addressing the original failure point, plus a 12‑month unlimited mileage warranty and nationwide delivery. Compare quotes today and get back on the road without the main dealer premium.
Compare Toyota Duet 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 Toyota Duet and engine code. Every engine supplied through EngineMarket carries a 12‑month unlimited mileage warranty - always confirm exact terms with your chosen supplier.
12-Month Warranty
Upgraded Components
Nationwide UK Delivery
Save vs Main Dealer Price
Replacement Engine Options
Toyota Duet Engine TypesOptions, Costs & What to Expect
Every engine type for the Toyota Duet is available through our UK network with typical price ranges based on variant, engine code and budget.
All engine types include a 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 Toyota Duet within hours.
Engine Sizes
Toyota Duet Engines by SizeFind the Right Displacement for Your Variant
Toyota Duet Petrol Engine Sizes
The 1.0L 1SZ-FE was the Duet's entry-level petrol unit, offering excellent urban fuel economy and low insurance groups for UK grey import owners seeking affordable kei-car motoring.
| Engine Code(s) | 1SZ-FE, 1SZ-FE VVT-i |
| Compatible Models (UK) | X, S, early G trims |
| Production Years | 1998-2012 |
Common Failure Points
Watch for these known weak points
Timing chain guide wear causing cold-start rattle; VVT-i solenoid clogging
Not sure which engine size your Toyota Duet 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 12‑month unlimited mileage warranty from UK Toyota Duet specialists.
Toyota Duet Engines Fuel Type
Toyota Duet Engines by Fuel Type
Toyota Duet Petrol Engines
Toyota Duet Petrol Engines
The Toyota Duet was offered exclusively with petrol engines in the UK grey import market, with the 1.0L and 1.3L SZ-series units dominating replacement enquiries.
Common Toyota Duet Petrol Engine Families
1SZ-FE - 1.0L VVT-i, entry-level efficiency, timing chain guide wear risk
2SZ-FE - 1.3L VVT-i, most common UK import, oil consumption on high mileage
Found In
First generation (1998-2002) - 1SZ-FE, 2SZ-FE
Facelift generation (2003-2012) - 1SZ-FE, 2SZ-FE
Known For
Excellent urban fuel economy and low running costs
Timing chain guide wear on 1SZ-FE between 60k-90k miles
Oil consumption issues on pre-2006 2SZ-FE units
Strong Daihatsu Boon/Storia parts compatibility reducing costs
Typical Petrol Models
X (base trim)
S (mid-spec)
G (premium)
CL (comfort luxury)
Aero (sport bodykit)
Not sure which fuel type your Toyota Duet has? Enter your registration number above to instantly identify your engine code, fuel system and compatible replacement options - all backed by a 12‑month unlimited mileage warranty from UK Toyota Duet specialists.
Engine Years
Toyota Duet Engines by YearWhat Was Fitted & When
This timeline covers all major engine changes across the Toyota Duet's 1998-2012 production run, organised so UK grey import owners can quickly identify their engine and compare rebuilt prices.
1998 - 2002 - Launch Generation: 1SZ-FE & 2SZ-FE Debut
Major Engine Changes2 engine highlights
The Duet launched with Toyota's new SZ-series small petrol engines, shared with the Daihatsu Storia/Boon platform.
Key Changes
Toyota Duet introduced as rebadged Daihatsu Boon/Storia
1.0L 1SZ-FE and 1.3L 2SZ-FE petrol engines offered
Front-wheel drive standard; 4WD available on select trims
Known For
Simple, robust design ideal for urban commuting
Early 2SZ-FE units may show oil consumption after 70k miles
Timing chain guides on 1SZ-FE require monitoring from 60k miles
Strong cross-compatibility with Daihatsu donor engines
Main Engines
1SZ-FE - 1.0L petrol (X base trim)
2SZ-FE - 1.3L petrol (X, S trims)
Popular Models
Toyota Duet X 1.0L
Toyota Duet X 1.3L
Toyota Duet S 1.3L
Engine Codes Covered
1SZ-FE2SZ-FE
Common Replacement Enquiries
Toyota Duet 1.0L engine replacement
Toyota Duet 1.3L oil consumption fix
Daihatsu Boon engine compatibility
Get quotes for 1998-2002 Toyota Duet replacement engines
1998 - 2002 - Launch Generation: 1SZ-FE & 2SZ-FE Debut
Major Engine Changes2 engine highlights
The Duet launched with Toyota's new SZ-series small petrol engines, shared with the Daihatsu Storia/Boon platform.
Key Changes
Toyota Duet introduced as rebadged Daihatsu Boon/Storia
1.0L 1SZ-FE and 1.3L 2SZ-FE petrol engines offered
Front-wheel drive standard; 4WD available on select trims
Known For
Simple, robust design ideal for urban commuting
Early 2SZ-FE units may show oil consumption after 70k miles
Timing chain guides on 1SZ-FE require monitoring from 60k miles
Strong cross-compatibility with Daihatsu donor engines
Main Engines
1SZ-FE - 1.0L petrol (X base trim)
2SZ-FE - 1.3L petrol (X, S trims)
Engine Codes Covered
1SZ-FE2SZ-FE
Popular Models
Toyota Duet X 1.0L
Toyota Duet X 1.3L
Toyota Duet S 1.3L
Common Replacement Enquiries
Toyota Duet 1.0L engine replacement
Toyota Duet 1.3L oil consumption fix
Daihatsu Boon engine compatibility
Get quotes for 1998-2002 Toyota Duet replacement engines
Year Finder
Not sure which year your Toyota Duet was built?
Not sure which year your Toyota Duet was built? Enter your registration number and we'll identify the exact engine, model year, and compatible replacement options instantly - all backed by a 12‑month warranty from UK Toyota Duet specialists.
FAQ
Toyota Duet Engine ReplacementFrequently Asked Questions
Question 1
How much does a Toyota Duet engine replacement cost in the UK?
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.
Key points
- • 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
Question 2
What engine codes fit my Toyota Duet?
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.
Key points
- • 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
Question 3
Is a rebuilt Toyota Duet engine reliable?
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.
Key points
- • 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
Question 4
How long does Toyota Duet engine replacement take?
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.
Key points
- • 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
Question 5
Will a replacement Toyota Duet engine pass UK MoT?
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.
Key points
- • 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
Question 6
Can I use a Daihatsu Boon engine in my Toyota Duet?
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.
Key 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
Question 7
What warranty comes with Toyota Duet replacement engines?
Every Toyota Duet engine supplied through EngineMarket includes a minimum 12-month unlimited mileage warranty covering parts and labour at any UK garage.
Key points
- • 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
Question 8
How do I know if my Toyota Duet needs engine replacement?
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.
Key points
- • 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
Question 9
Where can I get Toyota Duet engine supply and fit near me?
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.
Key points
- • 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
Question 10
Are Toyota Duet replacement engines VAT inclusive?
Prices displayed on EngineMarket are typically VAT-inclusive for consumer customers; business customers can request VAT-exclusive invoices for reclaim purposes.
Key points
- • 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
Why Choose Us
Why UK Toyota Duet Owners Trust EngineMarket
Find the best Toyota Duet engine replacement near you
Compare engine prices for Toyota Duet in the UK and get competitive quotes from garages near you.
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Warranty-backed rebuilt & used options
Every quote checked for fitment, quality and lead time.