Fullback 2.4L Diesel Engines
from £2,800 to £4,200
Rebuilt units from £2,800 · Common codes: 4N15, 4N15-150, 4N15-180
Fiat ENGINE MARKETPLACE
Fiat Fullback Engine Replacement - Compare 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.
Supply & Fit Available
12-Month Warranty
Nationwide Delivery
100+ Suppliers
Fullback 181PS Performance Diesel
from £3,200 to £4,800
Rebuilt units from £3,200 · Common codes: 4N15-180, 4N15-VGT, 4N15-Euro6
Fullback Fleet & Commercial Engines
from £3,000 to £4,500
Rebuilt units from £3,000 · Common codes: 4N15-C41, 4N15-C42, 4N15-C43
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 Fullback Replacement Engineto 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.
Live UK Engine Market Data
Average Market Prices
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↻ Last updated: 4 Aug 26, 9:26
Customer Reviews
Trusted by Fiat Fullback Owners Across the UK
Rated 4.8 out of 5 by 1,081 verified customers who sourced reconditioned and used Fiat Fullback engines through EngineMarket.
4.8
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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
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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.”
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
Fiat Fullback Engine ReplacementAll Variants Covered
Fiat Fullback SX
4N15 2.4L Diesel
Rebuilt Engines: £2,800-£3,900
Fiat Fullback Dynamic
4N15 2.4L Diesel
Rebuilt Engines: £2,900-£4,100
Fiat Fullback LX
4N15-180 2.4L Diesel
Rebuilt Engines: £3,200-£4,800
Fiat Fullback Cross
4N15-180 2.4L Diesel
Rebuilt Engines: £3,400-£4,900
Fiat Fullback Double Cab
4N15 2.4L Diesel
Rebuilt Engines: £2,900-£4,500
Fiat Fullback Single Cab
4N15 2.4L Diesel
Rebuilt Engines: £2,800-£3,800
Fiat Fullback Extended Cab
4N15 2.4L Diesel
Rebuilt Engines: £2,900-£4,200
Fiat Fullback 4x4
4N15 2.4L Diesel
Rebuilt Engines: £3,100-£4,600
Fiat Fullback RWD
4N15 2.4L Diesel
Rebuilt Engines: £2,800-£3,900
Fiat Fullback Manual Transmission
4N15 2.4L Diesel
Rebuilt Engines: £2,900-£4,300
Fiat Fullback Automatic
4N15 2.4L Diesel
Rebuilt Engines: £3,400-£4,900
Fiat Fullback Euro 6
4N15-Euro6 2.4L Diesel
Rebuilt Engines: £3,000-£4,500
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.
Fullback
Engine Codes
Fiat Fullback Engine CodesFull Technical Specifications & Replacement Guide
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.
4N15 - 2.4L Diesel
Main replacement triggers are timing chain wear, EGR / cooling faults and turbo-control issues.
Compatible variants
SXDynamicLXCrossDouble CabSingle Cab
Avg. rebuilt price
£2,800 - £4,200
Supply only
Technical specifications
- Fuel type
- Diesel
- Engine size
- 2.4L
- Power output
- 150-181 hp
- Years fitted
- 2016-2019
Common failures
- ●Main replacement triggers are timing chain wear, EGR / cooling faults and turbo-control issues.
- ●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 Fullback engine specialists. Every rebuilt engine comes with a minimum 12-month unlimited mileage warranty.
Fullback
Common Problems
Fiat Fullback Engine Problems - What It Costs to Fix & When Replacement Makes Sense
The Fiat Fullback's Mitsubishi-derived 4N15 diesel is robust but faces EGR, DPF and turbo challenges under commercial duty cycles. Every rebuilt engine supplied through EngineMarket includes upgraded internal components designed to address original failure points - plus a minimum 12-month unlimited mileage warranty. Use this section to compare repair vs...
Fiat Fullback EGR Valve Clogging - Why 4N15 Diesels Lose Power Under Load
Fiat Fullback EGR Valve Clogging
Most affected vehicles
Fiat Fullback SXLX
Fiat Fullback SX, LX, Cross, Double Cab (2016-2019, 4N15 & 4N15-150/180)
Failure mileage range
60,000-90,000 miles
Typical failure window
Root cause
Carbon deposits from exhaust gas recirculation accumulate in the EGR valve and cooler, restricting flow and triggering fault codes under commercial stop-start duty cycles.
Repair options & estimated costs (UK ranges)
| Repair tier | Dealer price | Specialist price | What it involves | Longevity / suitability |
|---|---|---|---|---|
| Minor - EGR Cleaning/Blanking | £450 - £750 | £280 - £450 | Remove, clean or blank EGR valve; reset ECU adaptations | Temporary fix; may trigger MOT emissions concerns on Euro 6 models |
| Intermediate - EGR Valve Replacement | £850 - £1,400 | £550 - £900 | Fit new or reconditioned EGR valve with updated gaskets; ECU recalibration | Restores function but carbon buildup may recur without driving pattern changes |
| Full Replacement - Rebuilt 4N15 Engine | £4,200 - £6,500 | £2,800 - £4,200 | Supply & fit rebuilt engine with upgraded EGR components; 12-month warranty | Addresses root cause; upgraded parts reduce recurrence risk for commercial use |
Our recommendation
For Fullback owners under 70k miles with isolated EGR faults, cleaning or valve replacement offers good value. However, if the vehicle has high commercial mileage or recurring DPF/EGR issues, a rebuilt 4N15 engine with upgraded components provides better long-term reliability and minimises downtime.
Compare rebuilt 4N15 engine prices for your Fiat FullbackReplacement Engine Options
Fiat Fullback Engine TypesOptions, Costs & What to Expect
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 Reconditioned Engines (Recon)£2,800 - £4,200((supply only))
Fiat Fullback Rebuilt Engines£3,200 - £4,800((supply only))
Fiat Fullback Used Engines£1,800 - £3,200((supply only))
Fiat Fullback Remanufactured Engines£3,800 - £5,500((supply only))
Fiat Fullback Refurbished Engines£2,600 - £3,900((supply only))
Compare Fiat Fullback 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 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
ϟ
Power output
Verified by registration
△
Common Failure Points
EGR valve clogging, DPF regeneration faults, turbo VGT actuator wear at 60k-100k miles
Production Years: fleet spec
Get quotes for Fiat Fullback 2.4L diesel enginesEngine 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.
Fiat Fullback Diesel Engines
DieselEvery 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.
Fiat Fullback Diesel Engines
DieselEvery 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.
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 YearsGet quotes for 2016 Fiat Fullback replacement engines →
Fiat Fullback Engines by YearWhat Was Fitted & WhenFiat Fullback Engines by Year - What 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.
⚙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
▣Main Engines
4N15-150- 2.4L diesel 150PS (SX RWD)
4N15-180- 2.4L diesel 181PS (LX 4x4)
▰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
🔧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
Engine Codes Covered:
4N154N15-1504N15-180Not sure which year your Fiat Fullback 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 Fullback specialists.
FAQ