Duet 1.0L Petrol Engines
from £950 to £1,850
Rebuilt units from £950 · Common codes: 1SZ-FE, 1SZ-FE VVT-i
Toyota ENGINE MARKETPLACE
Toyota Duet Engine Replacement - Compare Prices & Save
Get quotes from trusted UK Toyota Duet engine specialists. Compare used and reconditioned prices for 1.0L petrol - EJ-DE & EJ-VE covered. Find the best value for your budget.
Supply & Fit Available
12-Month Warranty
Nationwide Delivery
100+ Suppliers
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)
Instant engine replacement quote - 100% free, no obligation
Engine replacement near me - UK-wide specialist network
Compare reconditioned, rebuilt & used engine prices
Supply & fit available - parts and labour from vetted specialistsInstant engine replacement quote - 100% free, no obligationEngine replacement near me - UK-wide specialist networkCompare reconditioned, rebuilt & used engine pricesSupply & fit available - parts and labour from vetted specialistsHow It Works
3 Simple Steps3 Simple Stepsto Finding the Best Toyota Duet Replacement Engineto Finding the Best Toyota Duet Replacement Engine
12-Month Warranty
Supply & Fit Available
Nationwide Delivery
Trusted UK Suppliers
Most replacements completed within 3-5 days.
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
↻ Last updated: 4 Aug 26, 9:26
Customer Reviews
Trusted by Toyota Duet Owners Across the UK
Rated 4.8 out of 5 by 1,081 verified customers who sourced reconditioned and used Toyota Duet engines through EngineMarket.
4.8
★★★★★
out of 5
1,081 verified reviews
★★★★★
“Thanks to EngineMarket, I saved over £1,200 on my engine replacement and got matched with a great local specialist within the hour.”
JJimmyGoogle
★★★★★
“Got three quotes within an hour and chose the best deal easily. The whole process was quick, clear and stress-free.”
PPeteFacebook
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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.”
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Variants We Cover
Toyota Duet Engine ReplacementAll Variants Covered
Toyota Duet X
1SZ-FE 1.0L Petrol
Rebuilt Engines: £950-£1,650
Toyota Duet S
2SZ-FE 1.3L Petrol
Rebuilt Engines: £1,100-£2,100
Toyota Duet G
2SZ-FE 1.3L Petrol
Rebuilt Engines: £1,200-£2,400
Toyota Duet CL
2SZ-FE 1.3L Petrol
Rebuilt Engines: £1,150-£2,200
Toyota Duet Aero
2SZ-FE 1.3L Petrol
Rebuilt Engines: £1,400-£2,400
Toyota Duet 4WD
2SZ-FE 1.3L Petrol
Rebuilt Engines: £1,500-£2,600
Not sure which variant your Toyota Duet is- Enter your registration number above - we'll identify the exact sub-model, engine code and compatible replacement options instantly.
Duet
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.
1SZ-FE - 1.0L Petrol
Main replacement demand comes from timing-chain, cooling-system and performance thermal-management faults.
Compatible variants
XSearly G trims
Avg. rebuilt price
£950 - £1,650
Supply only
Technical specifications
- Fuel type
- Petrol
- Engine size
- 1.0L
- Power output
- 68-70 hp
- Years fitted
- 1998-2012
Common failures
- ●Main replacement demand comes from timing-chain, cooling-system and performance thermal-management faults.
- ●Confirm exact engine code and fitment before ordering.
- ●Ask for warranty and supply & fit terms.
Not sure which 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.
Duet
Common Problems
Toyota Duet Engine Problems - What It Costs to Fix & When Replacement Makes Sense
The Toyota Duet's 1SZ-FE and 2SZ-FE petrol engines are generally robust for kei-car duty, but UK grey import owners commonly report timing chain guide wear on the 1.0L and oil consumption on the 1.3L. Every rebuilt engine supplied through EngineMarket includes upgraded internal components designed to address the original failure point - plus a 12-month...
2SZ-FE Oil Consumption - Why 1.3L Duet Engines Burn Oil
2SZ-FE Oil Consumption
Most affected vehicles
Toyota Duet XS
Toyota Duet X, S, G, CL, Aero (1998-2012, 2SZ-FE 1.3L)
Failure mileage range
70,000-100,000 miles
Typical failure window
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 | £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 | £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 | £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
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.
Compare rebuilt 2SZ-FE engine prices for your Toyota DuetReplacement 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.
Toyota Duet Reconditioned Engines (Recon)£950 - £2,400((supply only))
Toyota Duet Rebuilt Engines£1,100 - £2,400((supply only))
Toyota Duet Used Engines£650 - £1,400((supply only))
Toyota Duet Remanufactured Engines£1,300 - £2,600((supply only))
Toyota Duet Refurbished Engines£800 - £1,800((supply only))
Compare Toyota Duet engine prices with vetted UK suppliers
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
Every displacement fitted to the Toyota Duet is listed below, with compatible engine codes, production years and common failure notes to help you identify the right replacement.
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
ϟ
Power output
Verified by registration
△
Common Failure Points
Timing chain guide wear causing cold-start rattle; VVT-i solenoid clogging
Production Years: 1998-2012
Get quotes for Toyota Duet 1.0L petrol enginesToyota Duet Engines Fuel Type
Toyota Duet Engines by Fuel Type
Choose your Toyota Duet engine by fuel type to compare realistic replacement prices, known issues, and compatible UK supply options - from the efficient 1.0L to the versatile 1.3L petrol units.
Toyota Duet Petrol Engines
PetrolThe 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
Typical Petrol Models
- •X (base trim)
- •S (mid-spec)
- •G (premium)
Toyota Duet Petrol Engines
PetrolThe 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
Typical Petrol Models
- •X (base trim)
- •S (mid-spec)
- •G (premium)
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 YearsGet quotes for 1998-2002 Toyota Duet replacement engines →
Toyota Duet Engines by YearWhat Was Fitted & WhenToyota Duet Engines by Year - What 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.
⚙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
▣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
🔧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
Engine Codes Covered:
1SZ-FE2SZ-FENot 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