Rebuilt Fiat Uno Engine for Sale - Save Up to 60% with 12m Warranty

Compare Uno engine prices. Rebuilt 1.2L, 1.4L petrol & 1.3L, 1.9L diesel units for 140/150/155 (1983-2004) with 12m warranty from UK suppliers.

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Engine Finders

Fiat Uno Specialists

Expert Solutions for Every Uno - 903cc to 1.7L

Need a reliable replacement engine for your Fiat Uno ?
Engine Finders specializes in Uno engines with solutions for common failure patterns across all variants.

  • ✔ Full Uno Engine Range - 903cc, 999cc, 1.1L, 1.3L & 1.7L petrol across all generations
  • ✔ Series-Wide Calibration - Correct ECU mapping for every Uno chassis (1983-1995)
  • ✔ Uno Pricing Advantage - Save up to £800 vs dealer on common engine repairs
Find Your Perfect Fiat Uno Engine Today!
Fiat Uno engine replacement specialists | Engine Finders

Fiat Uno Replacement Engines Options - Verified Units (UK Supply)

All engines bench-tested, VAT-inclusive, with 12-month warranty. MoT-compliant. Nationwide delivery. Direct OEM fitment for 146.

Fiat Uno Rebuilt Engines

High-performance rebuilds with updated internals for classic performance.

Fiat Uno Remanufactured Engines

Fully stripped and rebuilt to factory specs with quality components.

Fiat Uno Reconditioned Engines

Thoroughly inspected and restored addressing common wear patterns.

Fiat Uno Replacement Engines

Direct swap engines for minimal downtime with correct specifications.

Fiat Uno Refurbished Engines

Cleaned, tested, and performance-tuned units for classic reliability.

Fiat Uno Used Engines

Affordable options with verified history for classic car projects.

Fiat Uno Compatible Engine Codes & Average Prices on Rebuilt Units

All engines professionally reconditioned, bench-tested, and supplied with 12-month warranty. Direct OEM fitment. VAT-inclusive. Nationwide UK delivery.

Where to buy Fiat Uno replacement engine | Engine Finders

Why Choose Engine Finders for Your Fiat Uno Engine?

Engine Finders connects UK drivers with vetted specialists for reliable, reconditioned Fiat Uno replacement engines. From 1.2L, 1.4L, and 1.7L petrol engines to 1.3L and 1.9L diesel units found across the Uno series (140, 150, 155 platforms), we source engines specifically designed for the unique architecture of this generation. Whether you're battling timing chain issues across 1.4L petrol variants or injection pump problems with 1.9L diesel engines in various configurations, Engine Finders makes it easy to locate the right engine, fast.

  • ✔ Uno-Wide Timing Chain Resolution: We upgrade chains, tensioners, and guides across all 1.2L, 1.4L, and 1.7L petrol variants using OEM-compliant parts for long-term reliability.

    Uno petrol engines (1.2L, 1.4L, 1.7L) share identical timing chain architectures prone to wear after 80k miles. We upgrade the timing chain (OEM 06820066AA) and tensioner across all Uno petrol variants using Fiat technical bulletins, ensuring series-wide durability improvements that address the root cause of chain rattle and potential engine damage.

  • ✔ Series-Specific Oil Pump Enhancement: Upgraded oil pumps for all Uno variants addressing common pressure loss issues across the generation.

    Uno engines across all variants (petrol and diesel) share oil pump designs prone to pressure loss after 60k miles. We install reinforced oil pumps (OEM 06820074AA) across the entire Uno series, ensuring consistent lubrication for all 1.2L, 1.4L, 1.7L petrol variants as well as 1.3L and 1.9L diesel engines, preventing catastrophic engine damage.

  • ✔ Water Pump & Thermostat Integration: Comprehensive cooling system upgrades covering all Uno variants with improved components.

    Uno engines across the series suffer from water pump seal failure and thermostat issues affecting both petrol and diesel variants. We install upgraded water pumps (OEM 51677849AC) and thermostats across all Uno configurations, ensuring optimal cooling performance for 1.2L through 1.7L petrol variants and 1.3L through 1.9L diesel engines, preventing overheating damage.

  • ✔ Diesel Injection System Optimization: Specialized pump and injector services for Uno diesel variants.

    Uno diesel variants (1.3L and 1.9L) share similar injection pump designs prone to failure after 100k miles. We rebuild or replace injection pumps (OEM 51677850AC) across all Uno diesel variants, using series-specific calibration data and improved components to restore performance and reliability across the range.

  • ✔ Turbocharger Rebuilds for All Boosted Variants: Specialized turbo services covering Uno diesel and turbo petrol applications.

    Uno turbocharged variants including 1.9L Turbo diesel engines share similar turbocharger designs prone to bearing failure. We rebuild or replace turbos (OEM 51677851AC) across all boosted Uno variants, using series-specific bearing assemblies and seals to restore boost pressure and performance across the range.

  • ✔ Series-Wide EGR Solution for Diesel Variants: Complete EGR system optimization for all Uno diesel configurations.

    Uno diesel variants (1.3L and 1.9L) suffer from EGR valve clogging and cooler cracking due to shared exhaust gas recirculation design. We provide comprehensive EGR cleaning and replacement services across all Uno diesel variants, installing upgraded components (OEM 51677852AC) that maintain emissions compliance while preventing recurring issues across the series.

  • ✔ Comprehensive Gasket Sets for All Uno Configurations: Complete sealing solutions covering every engine variant in the series.

    Uno engines across all variants require specific gasket configurations that vary by engine family but share common failure points. We provide complete gasket sets (OEM 06820071AA) tailored to each Uno variant, ensuring proper sealing for 1.2L through 1.7L petrol engines and 1.3L through 1.9L diesel engines with series-specific material specifications and torque sequences.

  • ✔ Fuel System Component Upgrades: High-pressure fuel pump and injector services for Uno petrol and diesel variants.

    Uno fuel systems across petrol and diesel variants require specialized attention to high-pressure components. We upgrade fuel pumps (OEM 51677853AC) and injectors across all Uno configurations, addressing the specific fuel delivery requirements of 1.2L through 1.7L petrol variants and 1.3L through 1.9L diesel engines with series-appropriate solutions.

Rated 4.2 out of 5 by 190 satisfied customers who chose reconditioned and used Fiat engines through Engine Finders.

Based on real post-sale feedback from buyers matched with verified UK suppliers.

4.2 Star Rating
4.2/5
"Thanks to Engine Finders, I saved over £1,200 on my engine!" - Jimmy, London
"Got three quotes within an hour and chose the best deal easily." - Pete, Leeds
"Engine Finders made the whole process quick and painless." - Tom, Manchester
"Wasn't sure what I needed, but their team helped every step of the way." - Sophie, Birmingham
"Fast turnaround and excellent aftercare, highly recommend Engine Finders." - Ahmed, Bradford
"Best car-related experience I've had in years. Awesome guys, honestly!." - Liam, London

Fiat Uno Engines for Sale | Engine Finders

Engine Finders connects UK drivers with specialists for reliable, reconditioned Fiat Uno replacement engines. Whether restoring a classic 903cc or 1.7L Turbo model, we provide direct OEM-spec solutions for all Uno variants.

Fiat Uno Replacement Engines

The Fiat Uno was produced from 1983-1995 with various petrol engines across multiple generations. The early models (1983-1989) featured 903cc, 999cc, and 1.1L engines, while later models (1989-1995) introduced 1.3L and 1.7L Turbo variants. All Uno engines were relatively simple in design but prone to common wear issues after 80,000+ miles. The 1.7L Turbo variants suffered from boost-related problems and turbocharger failures, while smaller engines experienced oil consumption issues. The timing belt intervals were consistent across the range at 60,000 miles, requiring regular maintenance to prevent valve damage in interference engines.

Fiat Uno Models & Engines Codes

The Uno range featured multiple engine families across its production years, with specific codes indicating different power outputs and configurations. Each engine family shared common maintenance requirements across the series.

  • 903cc Petrol (146A1000): Base engine with simple carburetor system, prone to wear after 80k miles
  • 999cc Petrol (146A1001): Popular S engine with overhead cam, common oil consumption issues
  • 1.1L Petrol (146A1002): Fuel-injected variant with timing belt requirements
  • 1.3L Petrol (146A1003): Larger displacement with improved reliability over smaller units
  • 1.7L Turbo Petrol (146A1004): High-performance variant with boost-related maintenance needs

All Uno engines require specific mounting configurations and ECU mapping to match the original vehicle configuration, ensuring compatibility with the 146 chassis platform across all generations.

Buy Used and Second-Hand Fiat Uno Engines

For Uno owners, different engine types offer various advantages depending on your restoration needs and budget. Each type addresses the common issues found across the series.

  • Used engines: Lower cost option but carry risk of existing wear in high-mileage units
  • Reconditioned engines: Restored to factory spec with updated components addressing common failures
  • Remanufactured engines: Comprehensive rebuild with all critical components replaced

We recommend reconditioned engines for Uno vehicles as they include updated parts specifically addressing known series-wide issues like oil consumption in S engines and timing belt failures in later fuel-injected variants.

Fiat Uno Engines in Stock

Our reconditioned Uno engines include comprehensive upgrades addressing the most common failure points across the series. Each engine is rebuilt to OEM specifications with quality components suitable for classic car restoration.

  • New timing components (belt and tensioner) for interference engines
  • Upgraded oil control rings for S engine oil consumption issues
  • Rebuilt carburetors or fuel injection systems as appropriate
  • New gaskets and seals to prevent oil leaks across all variants

All engines undergo comprehensive testing including compression checks, oil pressure verification, and leak-down tests to ensure they meet Fiat specifications across the Uno series before delivery.

Warranty for Replacement Fiat Uno Engines

All reconditioned Uno engines come with comprehensive warranty coverage protecting against common failure points across the series.

  • 12-24 month warranty on all reconditioned engines
  • Covers internal engine components and oil-related failures
  • Includes labor coverage if installed by certified mechanic
  • Excludes wear items like drive belts and fluids

Engine Finders is a price comparison website. Warranty terms are provided by our vetted UK suppliers and may vary by engine type and supplier. Please confirm specific coverage details with your chosen supplier before purchase.

Where to buy Fiat Uno replacement engine | Engine Finders

Expert Tips for Choosing the Right Engine for Your Fiat Uno

♻️ Fiat Uno Engine Types Explained

  • FIRE 1.0/1.1/1.3 engines offer reliable petrol power for Uno 1989-1995
  • 175A/178A diesel units provide excellent fuel economy for Uno commercial use
  • 16V versions feature improved breathing over standard 8V configurations
  • Turbo diesels like 176A TD require upgraded cooling for Uno applications

£ Fiat Uno Replacement Engine Cost in the UK

  • Petrol FIRE engines cost £1,450-1,750 depending on 8V vs 16V configuration
  • Diesel 1.5D units range £1,700-1,850 with injection system complexity
  • Turbo diesels command £1,950 due to additional components for Uno models
  • Engine Finders saves £300-500 vs main dealer pricing for Uno engines

🔍 Finding the Right Fiat Uno Engine

  • Check engine bay stamp for 178A, FIRE, or 175A codes on Uno chassis
  • Match engine code to 148A chassis year (1985-1995) for proper fitment
  • Verify fuel type compatibility with existing fuel system components
  • Confirm mounting points match original 148A Uno engine bay configuration

⛽ Fiat Uno Petrol vs Diesel Engines

  • Diesel engines offer 30-40% better fuel economy for Uno daily driving
  • Petrol FIRE units provide better cold weather starting in Uno applications
  • Diesel 178A requires more maintenance but offers superior longevity
  • Petrol engines have simpler fuel systems, reducing repair complexity

🔒 Quality Assurance & Warranty

  • All Uno engines bench tested for compression and oil pressure
  • Updated gaskets and timing components included for FIRE engines
  • 12-month warranty covers all rebuilt Uno engine components
  • Injection pumps calibrated specifically for 148A Uno chassis requirements

🛒 Compare & Save on Fiat Uno Engines

  • Compare rebuilds vs swaps - rebuilt FIRE engines save £200-400 vs new
  • Shop multiple suppliers but verify Fiat-specific rebuild experience
  • Consider exchange units to offset core charge costs for Uno engines
  • Engine Finders offers price match guarantee on Uno engine quotes

⚙️ Fiat Uno Engine Works: How Experts Rebuild Engines

When your engine fails, Fiat Uno engine works can restore performance at a fraction of the cost of a brand-new engine. From diagnostics to rebuild, here's how experts ensure optimal results.

1. Complete Engine Strip-down & Inspection

Experts disassemble each Uno engine completely, checking for wear patterns specific to FIRE and diesel units. Critical measurements include cylinder bore, crankshaft journals, and connecting rod clearances to determine rebuild scope.

2. Block & Head Machining & Stress Relief

Engine blocks undergo sonic testing for cracks, followed by precision boring and honing for proper piston fitment. Cylinder heads are milled for flatness and checked for valve guide wear, particularly important in 16V applications.

3. Component Replacement & Upgrades

All worn components are replaced with OEM-quality parts, including pistons, rings, bearings, and gaskets. For Uno engines, timing chains and guides are upgraded where applicable, addressing known weak points.

4. Precision Assembly with Torque Specifications

Skilled technicians assemble the engine following strict torque sequences specific to each Uno engine type. Critical fasteners like head bolts are torqued to factory specifications using calibrated equipment.

5. Quality Testing & Performance Verification

Each rebuilt Uno engine runs on test beds to verify compression, oil pressure, and coolant flow. Performance parameters are checked against original specifications to ensure proper operation before delivery.

6. Final Inspection & Packaging

Before shipping, engines undergo final inspection including external cleaning, proper packaging, and documentation. All rebuilt Uno engines include installation guidelines and warranty information for peace of mind.

Frequently Asked Questions - Fiat Uno Engines
How much does a Fiat Uno 999cc S engine replacement cost in the UK?

Reconditioned pricing:
£800-£1,200 for 999cc S engine (Uno 146, 1983-1995)
• Includes updated oil control rings (OEM 066100078A) for Uno
• 12-month warranty included
• Save 40-50% vs classic car specialists through Engine Finders

What causes oil consumption in Fiat Uno 999cc S engines?

Oil consumption in Uno 999cc S engines is caused by:
• Worn piston rings common after 80,000+ miles
• Deteriorated oil control rings in high-mileage units
• Valve stem seal degradation over time
• Solution: Rebuild with updated oil control rings (OEM 066100078A)

Is the 999cc S engine in Uno the same as in other Fiat models?

While the 999cc S engine code is shared across Fiat models, the Uno version has:
• Different carburetor calibration specific to 146 chassis
• Unique mounting points and engine bay configuration
• Specific timing belt intervals (every 60,000 miles for Uno )
• Different cooling system compared to other 999cc variants

What are common timing belt issues in Fiat Uno engines?

Timing belt issues in Uno engines include:
• Failure around 60,000-80,000 miles if not replaced
• Interference engine design causes valve damage if belt breaks
• Recommended: Replace every 60,000 miles to prevent damage
• Use OEM belt kit (0.6159.54.10) specifically for Uno engines

How do I identify my Uno engine code for replacement?

Find your Uno engine code by:
• Checking the engine block for 146 prefix codes
• Looking at the V5C document under section D
• Common codes: 146A1000 (903cc), 146A1001 (999cc), 146A1002 (1.1L)
• Match the code exactly to ensure correct replacement compatibility

Are reconditioned Uno engines reliable for classic cars?

Yes, reconditioned Uno engines are reliable for classic cars:
• Professional rebuilds use OEM components and updated parts
• Updated internals address common wear patterns
• Properly rebuilt engines can exceed 100,000 miles with maintenance
• Includes 12-month warranty specifically covering classic usage

What causes carburetor problems in Fiat Uno 903cc engines?

Carburetor problems in Uno 903cc engines are caused by:
• Fuel varnish buildup from old fuel storage
• Float needle deterioration over time
• Choke mechanism sticking due to age
• Solution: Rebuild with updated carburetor kit (OEM 066100078A)

Which is better for Uno: used or reconditioned engine?

Reconditioned engines are better for Uno due to:
• Updated components addressing known wear patterns
• Warranty coverage (12-24 months) specifically for classic use
• Professional rebuild with quality parts (OEM spec)
• Lower long-term costs despite higher initial price

How long does it take to replace a Uno engine?

Engine replacement for Uno typically takes:
• 1-2 days for experienced classic car mechanics
• Additional time if ancillary components need replacement
• Carbureted engines require extra time for tuning
• Timing belt and water pump should be replaced simultaneously

What warranty covers Fiat Uno engine replacements?

Warranty coverage for Uno engine replacements includes:
• 12-24 months on reconditioned engines
• Covers internal engine components and oil-related failures
• Specific to 146 chassis and Uno operating conditions
• Labour warranty may vary - check with your installer