Uno Turbo Engines
from £1,800 to £2,500
Rebuilt units from £1,800 · Common codes: M603AT.13, M603BT13, 146 A2.246, 146 A8.046
Fiat ENGINE MARKETPLACE
Fiat Uno Engine Replacement - Compare Prices & Save
Get quotes from trusted UK Fiat Uno engine specialists. Compare used and reconditioned prices for 0.9L to 1.4L petrol & diesel - 146A2000, 160A1046 & 127A5000 covered. Find the best value for your budget.
Supply & Fit Available
12-Month Warranty
Nationwide Delivery
100+ Suppliers
Uno FIRE Engines
from £1,450 to £1,750
Rebuilt units from £1,450 · Common codes: 146 A2.000, 156 A1.000, 156 A3.000
Uno 146 Series Engines
from £495 to £895
Rebuilt units from £495 · Common codes: 146 A1.000, 146 A6.000, 146 A5.000, 146 A8.000
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 Fiat Uno Replacement Engineto Finding the Best Fiat Uno 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
Average Market Prices
No entries match that model filter yet.
↻ Last updated: 4 Aug 26, 9:26
Customer Reviews
Trusted by Fiat Uno Owners Across the UK
Rated 4.8 out of 5 by 1,081 verified customers who sourced reconditioned and used Fiat Uno 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
★★★★★
“I wasn't sure what I needed, but they helped me identify the right engine and connected me with a trusted garage.”
SSophieTrustpilot
★★★★★
“Thanks to EngineMarket, I saved over £1,200 on my engine replacement and got matched with a great local specialist within the hour.”
JJimmyGoogle
Variants We Cover
Fiat Uno Engine ReplacementAll Variants Covered
Fiat Uno 45
146 A1.000 0.9L Petrol
Rebuilt Engines: £495-£650
Fiat Uno 55
146 A6.000 1.1L Petrol
Rebuilt Engines: £550-£750
Fiat Uno 60
146 A5.000 1.3L Petrol
Rebuilt Engines: £595-£795
Fiat Uno 70 SX
146 A5.000 1.3L Petrol
Rebuilt Engines: £650-£895
Fiat Uno Turbo Mk1
M603AT.13 1.3L Petrol
Rebuilt Engines: £1,800-£2,200
Fiat Uno Turbo Mk2
M603BT13 1.4L Petrol
Rebuilt Engines: £1,900-£2,500
Fiat Uno 1.0 i.e.
146 A2.000 1.0L Petrol
Rebuilt Engines: £1,450-£1,650
Fiat Uno 1.1 i.e.
156 A1.000 1.1L Petrol
Rebuilt Engines: £1,500-£1,750
Not sure which variant your Fiat Uno is- Enter your registration number above - we’ll identify the exact sub-model, engine code and compatible replacement options instantly.
Uno
Engine Codes
Fiat Uno Engine CodesFull Technical Specifications & Replacement Guide
Every engine code fitted to the Fiat Uno 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 Fiat Uno variants.
146 A1.000 - 0.9L Petrol
Main replacement demand comes from timing-chain, cooling-system and performance thermal-management faults.
Compatible variants
Uno 45
Avg. rebuilt price
£495 - £650
Supply only
Technical specifications
- Fuel type
- Petrol
- Engine size
- 0.9L
- Power output
- 45 hp
- Years fitted
- 1983-1989
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 Fiat Uno engine specialists. Every rebuilt engine comes with a minimum 12-month unlimited mileage warranty.
Uno
Common Problems
Fiat Uno Engine Problems - What It Costs to Fix & When Replacement Makes Sense
The Fiat Uno's engine range spans from simple, robust classics to the complex, high-performance Turbo. The dominant replacement demand comes from the FIRE engine family's head gasket issues, the 146 series' carburettor and timing belt woes, and the Turbo models' oil seal and head gasket failures. Every rebuilt engine supplied through EngineMarket includes...
Fiat Uno FIRE Head Gasket Failure - Why Later Mk2 Engines Overheat
Fiat Uno FIRE Head Gasket Failure
Most affected vehicles
Fiat Uno 1.0 i.e.1.1 i.e. (1989-1995
Fiat Uno 1.0 i.e., 1.1 i.e. (1989-1995, 146 A2.000 & 156 A1.000)
Failure mileage range
70,000 - 120,000 miles
Typical failure window
Root cause
The FIRE engine's design has a known weakness in the cylinder head gasket, which can fail due to thermal cycling and age, leading to coolant mixing with oil or combustion gases entering the cooling system.
Repair options & estimated costs (UK ranges)
| Repair tier | Dealer price | Specialist price | What it involves | Longevity / suitability |
|---|---|---|---|---|
| Minor - Head Gasket Replacement - Replace just the gasket | £1,200 - £1,800 | £800 - £1,200 | Removal of the cylinder head, surface check, and fitting a new gasket. | Only suitable if the head and block are perfectly flat and undamaged. Risk of repeat failure is high without upgraded components. |
| Full Replacement - Rebuilt / Reconditioned Engine - Complete long-block swap | £2,200 - £2,800 | £1,450 - £1,750 | Supply and fit of a fully rebuilt engine with an upgraded multi-layer steel (MLS) head gasket and new ancillaries. Bench tested and carries a 12-month warranty. | The most reliable and cost-effective long-term solution. Addresses the root cause with superior components. Recommended for cars valued over £1,500. |
Our recommendation
On a Fiat Uno worth £1,000-£3,000, a minor head gasket repair is a gamble. The risk of repeat failure is significant, and you'll be back at square one. We strongly recommend a rebuilt engine with an upgraded MLS gasket. It’s a one-time fix that comes with a warranty and gets you back on the road reliably.
Compare rebuilt FIRE engine prices for your Fiat UnoReplacement Engine Options
Fiat Uno Engine TypesOptions, Costs & What to Expect
Every engine type is available through the UK network with typical price ranges based on variant, engine code and budget.
Fiat Uno Reconditioned Engines (Recon)£1,200 - £2,200((supply only))
Fiat Uno Rebuilt Engines£1,450 - £2,500((supply only))
Fiat Uno Used Engines£495 - £1,200((supply only))
Fiat Uno Remanufactured Engines£1,800 - £2,800((supply only))
Fiat Uno Refurbished Engines£600 - £1,000((supply only))
Compare Fiat Uno engine prices with vetted UK suppliers
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 Fiat Uno within hours.
Engine Sizes
Fiat Uno Engines by SizeFind the Right Displacement for Your Variant
Every displacement fitted to the Fiat Uno is listed below, with compatible engine codes, production years, and common failure notes to help you identify the correct replacement.
The smallest engine in the Uno range, the 903cc unit was the base powerplant for the Uno 45 from 1983. It's a simple, pushrod OHV design derived from the Fiat 127, known for its basic but robust nature in early Mk1 models.
⚙
Engine Code(s)
146 A1.000
▣
Compatible Models (UK)
Uno 45
ϟ
Power output
Verified by registration
△
Common Failure Points
Timing belt misalignment is critical due to its interference design; incorrect setting at TDC will bend valves.
Production Years: 1983-1989
Compare Fiat Uno 0.9L petrol engine pricesFuel Type
Fiat Uno Engines by Fuel Type
Choose your Fiat Uno engine by fuel type to compare realistic replacement prices, known issues, and compatible UK supply options - from early Uno 45 to the latest Uno Turbo Mk2.
Fiat Uno Petrol Engines
PetrolPetrol engines powered the vast majority of UK Unos, spanning from the simple OHV 0.9L to the complex turbocharged 1.4L, with the robust SOHC 146 series and modern FIRE engines in between.
Common Fiat Uno Petrol Engine Families
- •146 A1.000 - Base 0.9L for Uno 45, simple OHV design
- •146 A6.000 - 1.1L SOHC for Uno 55, carburetted workhorse
- •146 A5.000 - 1.3L SOHC for Uno 60/70, known for carb issues
Found In
- •Mk1 (146_) (1983-1989) - 0.9L, 1.1L, 1.3L (146 series)
- •Mk2 (146_ Facelift) (1989-1995) - 1.0L, 1.1L (FIRE), 1.4L Turbo
Known For
- •Excellent parts availability for 146 series engines
- •FIRE head gasket failure being the most common modern issue
- •The Uno Turbo's status as a legendary hot hatch
Typical Petrol Models
- •Uno 45
- •Uno 55
- •Uno 60
1 of 2
Fiat Uno Petrol Engines
PetrolPetrol engines powered the vast majority of UK Unos, spanning from the simple OHV 0.9L to the complex turbocharged 1.4L, with the robust SOHC 146 series and modern FIRE engines in between.
Common Fiat Uno Petrol Engine Families
- •146 A1.000 - Base 0.9L for Uno 45, simple OHV design
- •146 A6.000 - 1.1L SOHC for Uno 55, carburetted workhorse
- •146 A5.000 - 1.3L SOHC for Uno 60/70, known for carb issues
Found In
- •Mk1 (146_) (1983-1989) - 0.9L, 1.1L, 1.3L (146 series)
- •Mk2 (146_ Facelift) (1989-1995) - 1.0L, 1.1L (FIRE), 1.4L Turbo
Known For
- •Excellent parts availability for 146 series engines
- •FIRE head gasket failure being the most common modern issue
- •The Uno Turbo's status as a legendary hot hatch
Typical Petrol Models
- •Uno 45
- •Uno 55
- •Uno 60
Fiat Uno Diesel Engines
DieselDiesel engines were a rare sight in the UK Uno lineup, with only 1.5L and 1.7L options offered. Their scarcity makes them a niche interest for enthusiasts and fleet historians.
Common Fiat Uno Diesel Engine Families
- •149 C1.000 - 1.5L indirect injection, 60hp, very rare
- •146 B.000 - 1.7L turbodiesel, 65hp, extremely rare in UK
Found In
- •Mk1 & Mk2 (146_) (1983-1995) - Limited production runs for both sizes
Known For
- •Exceptional fuel economy for their time
- •Very limited UK market presence
- •Injection pump issues on the 1.5L unit
Typical Diesel Models
- •Uno 1.5 D
- •Uno 1.7 D
Not sure which fuel type your Fiat Uno 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 Fiat Uno specialists.
Engine YearsGet quotes for 1983-1989 Fiat Uno replacement engines →
Fiat Uno Engines by YearWhat Was Fitted & WhenFiat Uno Engines by Year - What Was Fitted & When
This timeline covers all major engine changes across the Fiat Uno's 1983-1995 UK production, organised so you can quickly identify your engine and compare rebuilt prices from UK specialists.
⚙Key Changes
- ✓Launch of the Uno 45 with 0.9L OHV engine
- ✓Introduction of Uno 55 with 1.1L SOHC engine
- ✓Arrival of Uno 60 and 70 SX with 1.3L SOHC engine
- ✓Debut of the legendary Uno Turbo Mk1 with 1.3L turbocharged engine
▣Main Engines
146A1.000 - 0.9L petrol (Uno 45)
146A6.000 - 1.1L petrol (Uno 55)
146A5.000 - 1.3L petrol (Uno 60 / 70 SX)
M603AT.13- 1.3L turbo petrol (Uno Turbo Mk1)
▰Popular Models
- •Fiat Uno 45
- •Fiat Uno 55
- •Fiat Uno 60
- •Fiat Uno 70 SX
- •Fiat Uno Turbo Mk1
🔧Known For
- ✓Simple, easy-to-work-on mechanicals
- ✓Carburettor issues on 1.1L and 1.3L models
- ✓The birth of a hot hatch icon with the Turbo
- ✓Robust build quality on early models
Engine Codes Covered:
146 A1.000146 A6.000146 A5.000M603AT.13Not sure which year your Fiat Uno 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 Fiat Uno specialists.
FAQ