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Fiat Fullback Engine ReplacementCompare Quotes from UK Specialists

Get quotes from trusted UK Fiat Fullback engine specialists. Compare reconditioned and rebuilt prices for 4N15, 4D56, and 4G64 - 2.4L diesel to 2.4L petrol covered. Get specialist quotes for your Fullback.

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Fiat Fullback 4N15 diesel engine - 2.4L DI-D rebuilt reconditioned UK
Fullback 2.4L Diesel Engines- from £2,800 to £4,200

Rebuilt units from £2,800

Common codes: 4N15, 4N15-150, 4N15-180

Fiat Fullback 4N15-180 high-output diesel - 2.4L turbo rebuilt reconditioned UK
Fullback 181PS Performance Diesel- from £3,200 to £4,800

Rebuilt units from £3,200

Common codes: 4N15-180, 4N15-VGT, 4N15-Euro6

Fiat Fullback 4N15 commercial-duty diesel - chassis C41 C42 C43 rebuilt reconditioned UK specialist
Fullback Fleet & Commercial Engines- from £3,000 to £4,500

Rebuilt units from £3,000

Common codes: 4N15-C41, 4N15-C42, 4N15-C43

Fiat Fullback engine replacement UK - compare reconditioned and rebuilt engine prices
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Instant 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 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 specialists
How It Works

3 Simple Stepsto Finding the Best Fiat Fullback Replacement Engine

12-Month Warranty
Supply & Fit Available
Nationwide Delivery
Trusted UK Suppliers

Most replacements completed within 3-5 days.

Engine Intelligence

Fiat Fullback Engines - Codes, Common Failures & Replacement Costs

The cards below cover the engines fitted to the Fiat Fullback in the UK - including known failure causes, production years across variants, typical replacement costs, and key technical specs. All data reflects current UK market ranges for rebuilt units.

Fiat Fullback engine intelligence reference

4N15

Production History

  • Fiat Fullback SX 2.4L DI-D 150PS - 2016-2019
  • Fiat Fullback LX 2.4L DI-D 181PS - 2016-2019
  • Fiat Fullback Cross 2.4L DI-D 181PS - 2017-2019
  • Fiat Fullback Double Cab 4N15 (all trims) - 2016-2019
  • Fiat Fullback Single Cab 4N15 (fleet spec) - 2016-2019

Known Failures

  • EGR valve clogging - carbon buildup from commercial duty cycles causes rough idle and reduced power.
  • DPF regeneration failure - exhaust back pressure sensor faults trigger warning lights on short-journey use.
  • Turbocharger wear - VGT actuator issues and bearing wear common after 80k-100k miles on high-hour units.

Specs

Diesel · 2.4L · 150-181hp · Turbocharged

Replacement Cost

Typical UK rebuilt engine: £2,800-£4,200 (supply only)

4N15-150

Production History

  • Fiat Fullback SX 2.4L DI-D 150PS (RWD) - 2016-2019
  • Fiat Fullback SX 2.4L DI-D 150PS (4WD) - 2016-2019
  • Fiat Fullback fleet-spec Single Cab 150PS - 2016-2019

Known Failures

  • High-pressure fuel pump wear - CP3 pump degradation causes rough idle and hard starting after 70k miles.
  • Timing chain tensioner fatigue - chain rattle on cold start indicates tensioner wear requiring preventative replacement.

Specs

Diesel · 2.4L · 150hp · Turbocharged

Replacement Cost

Typical UK rebuilt engine: £2,800-£3,900 (supply only)

4N15-180

Production History

  • Fiat Fullback LX 2.4L DI-D 181PS (4WD) - 2016-2019
  • Fiat Fullback Cross 2.4L DI-D 181PS (4WD) - 2017-2019
  • Fiat Fullback Double Cab auto 181PS - 2016-2019

Known Failures

  • Turbo VGT actuator failure - variable geometry mechanism sticks causing boost loss and limp mode.
  • Cooling system leaks - water pump and thermostat housing seepage common on high-mileage commercial units.

Specs

Diesel · 2.4L · 181hp · Turbocharged

Replacement Cost

Typical UK rebuilt engine: £3,200-£4,800 (supply only)

Customer Reviews

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Variants We Cover

Fiat Fullback Engine ReplacementAll Variants Covered

Not sure which variant your Fiat Fullback is- Enter your registration number above - we'll identify the exact sub-model, engine code and compatible replacement options instantly.

Engine Codes

Fiat Fullback Engine Codes

Every engine code fitted to the Fiat Fullback 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.

Diesel Engines

Extracted from detailed diesel engine families across Fiat Fullback variants.

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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 Fullback engine specialists. Every rebuilt engine comes with a minimum 12-month unlimited mileage warranty.

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Common Problems

Fiat Fullback Engine Problems

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Save vs Main Dealer Price

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 Fiat Fullback and engine code. Every engine supplied through EngineMarket carries a minimum 12-month unlimited mileage warranty - always confirm exact terms with your chosen supplier.

Replacement Engine Options

Fiat Fullback Replacement Engine Types

Every engine type for the Fiat Fullback is available through our UK network with typical price ranges based on variant, 4N15 engine code and budget.

Fiat Fullback Refurbished EnginesTargeted refurbishment of 4N15 subsystems like EGR, turbo or fuel pump for Fullback owners addressing specific failure points.
Typical Price
£2,600 - £3,900
(supply only)
View refurbished Fiat Fullback engine options
Refurbished

Refurbished Fullback engines focus on known 4N15 weak points - EGR valves, turbo actuators or high-pressure pumps - offering cost-effective solutions when full rebuild isn't required.

  • Subsystem-specific refurbishment options
  • Faster turnaround than full rebuilds
  • Suitable for targeted repair scenarios under warranty
Typical Price
£2,600 - £3,900
(supply only)
View refurbished Fiat Fullback engine options

All rebuilt engines include a minimum 12-month 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 Fullback within hours.

Engine Sizes

Fiat Fullback Engines by SizeFind the Right Displacement for Your Variant

Every displacement fitted to the Fiat Fullback is listed below, with compatible 4N15 engine codes, production years and common failure notes to help you identify the right replacement.

The 2.4L Mitsubishi 4N15 diesel powered every UK Fullback variant from 2016-2019, available in 150PS and 181PS outputs. This common-rail turbo unit delivered strong low-end torque for towing but requires specialist attention to EGR and DPF systems under commercial duty cycles.

ENGINE CODE(S)4N15, 4N15-150, 4N15-180
COMPATIBLE MODELS (UK)SX (2016-2019), LX (2016-2019), Cross (2017-2019), Double Cab (all years), Single Cab
PRODUCTION YEARSfleet spec
Common Failure Points

EGR valve clogging, DPF regeneration faults, turbo VGT actuator wear at 60k-100k miles

Get quotes for Fiat Fullback 2.4L diesel engines

Not sure which engine size your Fiat Fullback 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 minimum 12-month unlimited mileage warranty from UK Fiat Fullback specialists.

Engine Intelligence

Fiat Fullback Engines by Fuel Type

Choose your Fiat Fullback engine by fuel type to compare realistic replacement prices, known issues, and compatible UK supply options - from early SX 150PS to the latest Cross 181PS 4x4.

Every UK Fullback used the Mitsubishi 4N15 2.4L turbodiesel in 150PS or 181PS outputs, making diesel the sole fuel type for this model across SX, LX and Cross variants.

Compare Euro 6 Engine Prices

Not sure which variant your Fiat Fullback is- Enter your registration number above - we'll identify the exact sub-model, engine code and compatible replacement options instantly.

Engine Years

Fiat Fullback Engines by YearWhat Was Fitted & When

This section covers all major engine changes across the Fullback's 2016-2019 production timeline, organised so owners can quickly identify their 4N15 engine and compare rebuilt prices from UK specialists.

2016 - Fullback Launch Year: 4N15 Diesel Debuts
Major Engine Change
The inaugural Fullback year introduced the Mitsubishi-derived 4N15 diesel in 150PS and 181PS outputs across SX and LX trims.
Key Changes
Fullback launched in UK with double cab body style only
4N15 2.4L common-rail diesel offered in 150PS (SX) and 181PS (LX) outputs
6-speed manual standard; 5-speed auto optional on 181PS models
RWD standard on SX; 4x4 standard on LX
Known For
Strong initial demand from commercial buyers seeking Mitsubishi reliability with Fiat badge
Early EGR carbon buildup reports on short-journey commercial use
Good payload and towing capability for 1-tonne LCV class
Main Engines
4N15-150 - 2.4L diesel 150PS (SX RWD)
4N15-180 - 2.4L diesel 181PS (LX 4x4)
Engine Codes Covered
4N154N15-1504N15-180
Popular Models
Fiat Fullback SX 2.4L DI-D RWD
Fiat Fullback LX 2.4L DI-D 4x4
Fiat Fullback Double Cab SX
Fiat Fullback Double Cab LX
Common Replacement Enquiries
Fiat Fullback 2016 engine replacement
4N15 EGR valve clogging fix
Fullback SX diesel rebuild cost
Get quotes for 2016 Fiat Fullback replacement engines
FAQ

Fiat Fullback Engine ReplacementFrequently Asked Questions

How much does a Fiat Fullback 2.4L engine replacement cost in the UK-

Rebuilt Fiat Fullback 4N15 engines typically cost £2,800-£4,200 supply-only, with supply & fit adding £800-£1,500 depending on location and variant.

  • Prices vary by 4N15 output (150PS vs 181PS) and commercial mileage
  • Reconditioned units offer best value for most Fullback owners
  • Supply & fit packages minimise downtime for fleet users
  • All EngineMarket quotes include 12-month unlimited mileage warranty
Compare rebuilt 4N15 engine prices for your Fiat Fullback

What engine codes fit the Fiat Fullback in the UK-

Every UK Fiat Fullback used the Mitsubishi 4N15 2.4L diesel, with codes 4N15 (base), 4N15-150 (150PS) and 4N15-180 (181PS) covering all variants.

  • 4N15-150 powers SX and Single Cab fleet variants
  • 4N15-180 used in LX, Cross and automatic models
  • All codes share common rail injection and turbocharging
  • Enter your reg above to confirm exact code for your Fullback
Check Fullback engine code compatibility instantly

Is a reconditioned Fullback 4N15 engine reliable for commercial use-

Yes - reconditioned 4N15 engines with upgraded EGR, turbo and timing components offer excellent reliability for commercial Fullback operation when sourced from vetted UK specialists.

  • Upgraded EGR valves reduce carbon clogging recurrence
  • Reinforced timing chain tensioners prevent cold-start rattle
  • 12-month warranty covers commercial mileage usage
  • Bench testing ensures OEM torque specs before dispatch
Find reconditioned Fullback engines with commercial warranty

How long does Fullback engine replacement take for commercial vehicles-

Supply-only engines typically dispatch within 1-3 working days; supply & fit installations take 1-2 days at a specialist workshop, minimising Fullback downtime.

  • Most UK suppliers hold 4N15 stock for next-day dispatch
  • Specialist workshops familiar with Fullback chassis reduce labour time
  • ECU coding and road testing included in professional fitment
  • Book supply & fit in advance to secure preferred dates
Book Fullback supply & fit with minimal downtime

Do I need ECU reprogramming for Fullback 4N15 engine swap-

Yes - most Fullback 4N15 replacements require ECU immobiliser matching and adaptation reset, which specialist suppliers include in supply & fit packages.

  • Immobiliser coding ensures engine starts and runs correctly
  • Adaptation reset optimises fuel trim for rebuilt components
  • Diagnostic clearance removes pre-swap fault codes
  • Always confirm ECU services are included in your quote
Get quotes including Fullback ECU coding and diagnostics

Will a replacement Fullback engine pass MOT for commercial use-

Yes - rebuilt 4N15 engines supplied through EngineMarket meet Euro 6 emissions standards and include documentation to support MOT compliance for commercial Fullback variants.

  • Engines tested to OEM emissions specifications pre-dispatch
  • Documentation provided for MOT tester verification
  • DPF and EGR systems maintained to legal requirements
  • Warranty covers emissions-related component failures
Compare MOT-compliant Fullback engine options

Can I fit a Fullback engine myself for commercial use-

While mechanically possible, Fullback 4N15 replacement requires specialist tools, ECU coding equipment and commercial vehicle expertise - professional installation is strongly recommended.

  • 4N15 engine weight (~300kg) requires appropriate lifting equipment
  • ECU immobiliser matching needs dealer-level diagnostic tools
  • Fuel system bleeding and turbo oil priming are critical steps
  • Professional fitment preserves warranty coverage
Find vetted Fullback engine fitting specialists near you

What warranty comes with Fullback replacement engines for fleet use-

All rebuilt Fullback engines supplied through EngineMarket include a minimum 12-month unlimited mileage warranty, with optional extensions available from some suppliers for fleet accounts.

  • Warranty covers internal components and major assemblies
  • Commercial mileage usage explicitly included in coverage
  • Labour reimbursement available at competitive UK rates
  • Claims process managed directly with supplying specialist
View Fullback engine warranty terms from UK suppliers

How do I know which Fullback engine I need for my commercial vehicle-

Enter your Fullback registration above for instant DVLA verification of exact variant, 4N15 engine code and compatible replacement options tailored to your commercial application.

  • DVLA lookup confirms chassis code (C41/C42/C43) and output
  • Engine code determines ECU, turbo and emissions compatibility
  • Commercial duty cycle informs optimal rebuild specification
  • Instant quotes match your exact Fullback configuration
Identify your Fullback engine code in seconds

Is it worth replacing a Fullback engine for commercial fleet use-

For Fullbacks under 120k miles with sound chassis and transmission, a rebuilt 4N15 engine typically costs 40-60% less than vehicle replacement, preserving fleet asset value.

  • Rebuilt engines restore performance at fraction of new vehicle cost
  • Upgraded components address known 4N15 failure points
  • Minimises downtime compared to sourcing replacement vehicle
  • Preserves existing fleet contracts and insurance arrangements
Calculate Fullback repair vs replace value for your fleet

Why Choose Us

Why UK Fiat Fullback Owners Trust EngineMarket

Join thousands of UK drivers who compare Fiat Fullback engine prices through our network of trusted specialists - every rebuilt and reconditioned unit backed by a minimum 12-month unlimited mileage warranty and nationwide delivery.

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Every garage and engine rebuilder in our network is vetted, rated, and reviewed by real Fiat Fullback owners.

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UK Engine Replacement Services for Fiat Fullback

Covering every variant from budget SX to performance Cross, with supply-only or full supply & fit available nationwide.

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