Discovery Diesel Engines
from £1,850 to £4,600
Rebuilt units from £1,850 · Common codes: 306DT, 363DT, 204DTD, 204DTA
Land Rover ENGINE MARKETPLACE
Land Rover Discovery 306DT/276DT/204DTD Engine Solutions - UK Specialists
Get quotes from trusted UK Land Rover Discovery engine specialists. Compare reconditioned & used engines for Discovery 3 to 5 - 306DT/276DT/204DTD covered. Get a quote before it's too late.
Supply & Fit Available
12-Month Warranty
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100+ Suppliers
Discovery Petrol Engines
from £2,400 to £5,800
Rebuilt units from £2,400 · Common codes: 306PT, PV6PT, AJ133, 306PS
Discovery V8 Performance Engines
from £5,200 to £11,500
Rebuilt units from £5,200 · Common codes: AJ133, AJ33T, 508PS
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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 Land Rover Discovery Replacement Engineto Finding the Best Land Rover Discovery 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 Land Rover Discovery Engine Replacement
Typical UK rebuilt engine costs for Land Rover Discovery variants, covering documented failures, chassis/engine codes, fuel types and sizes.
Average Market Prices
↻ Last updated: 4 Aug 26, 9:26
Customer Reviews
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Rated 4.8 out of 5 by 1,081 verified customers who sourced reconditioned and used Land Rover Discovery engines through EngineMarket.
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Variants We Cover
Land Rover Discovery Engine ReplacementAll Variants Covered
Not sure which variant your Land Rover Discovery is- Enter your registration number above - we’ll identify the exact sub-model, engine code and compatible replacement options instantly.
Discovery
Engine Codes
Land Rover Discovery Engine CodesFull Technical Specifications & Replacement Guide
Every engine code fitted to the Land Rover Discovery 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 Land Rover Discovery variants.
AJ30D - 3.0 Litre Diesel
Main replacement triggers are timing chain wear, EGR / cooling faults and turbo-control issues.
Compatible variants
Discovery 4 TDV6 SDiscovery 4 TDV6 SEDiscovery 4 TDV6 XSDiscovery 4 SDV6 SEDiscovery 4 SDV6 HSEDiscovery 4 SDV6 Autobiography
Avg. rebuilt price
£3,950 - £5,400
Supply only
Technical specifications
- Fuel type
- Diesel
- Engine size
- 3.0L
- Power output
- 188-255 hp
- Years fitted
- 2009-2016
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 Land Rover Discovery engine specialists. Every rebuilt engine comes with a minimum 12-month unlimited mileage warranty.
Discovery
Common Problems
Land Rover Discovery Engine Problems - What It Costs to Fix & When Replacement Makes Sense
The Land Rover Discovery’s off-road capability and heavy towing demands place extraordinary stress on its powertrain, with the 3.0L TDV6/SDV6 diesel and 5.0L V8 petrol engines dominating UK replacement demand due to well-documented weak points. While disciplined servicing extends service life, systemic design flaws in oil delivery and timing drive systems...
Land Rover Discovery 3.0L V6 Timing Chain Failure - Why TDV6/SDV6 Engines Fail Prematurely
Land Rover Discovery 3.0L V6 Timing Chain Failure
Most affected vehicles
Land Rover Discovery 4 & 5 SDV6TDV6
Land Rover Discovery 4 & 5 SDV6, TDV6, HSE, SE (2009-Present, 306DT & Gen III AJ-V6)
Failure mileage range
70,000 - 120,000 miles
Typical failure window
Root cause
The lower timing chain tensioners wear prematurely under sustained high load, causing chain slack that misaligns the oil pump drive gears and leads to inadequate oil pressure at the crankshaft bearings.
Repair options & estimated costs (UK ranges)
| Repair tier | Dealer price | Specialist price | What it involves | Longevity / suitability |
|---|---|---|---|---|
| Minor - Preventative Timing Chain & Tensioner Kit | £2,400 - £3,100 | £1,300 - £1,850 | Removal of timing cover, replacement of primary/secondary chains, upgraded tensioners, and recalibration of valve timing | Viable only before rattling or oil pressure faults appear; extends chain service life by 40,000-60,000 miles |
| Major - Oil Pump & Lower Chain Drive Replacement | £3,200 - £4,200 | £1,900 - £2,600 | Engine removal or subframe drop, replacement of failed oil pump drive, lower timing chain set, and pressure testing | Restores factory oil flow; does not reverse existing bearing wear if pressure warning lights have already illuminated |
| Full Replacement - Rebuilt / Reconditioned 3.0L V6 Engine | £5,800 - £7,400 | £3,600 - £4,900 | Complete supply & fit of a bench-tested long block, upgraded timing drive components, remanufactured heads, 12-month unlimited mileage warranty | Permanent solution; addresses all internal wear points with reinforced bearings and improved tensioner geometry |
Our recommendation
On a Land Rover Discovery 4 or 5 with under 80,000 miles, a preventative timing chain and tensioner refresh is highly cost-effective and significantly delays failure. However, if the warning light has illuminated or you hear metallic rattling at startup, bearing damage has likely occurred and a full rebuilt engine replacement becomes the only reliable, long-term option.
Compare rebuilt 306DT and Gen III SDV6 engine prices for your Land Rover DiscoveryReplacement Engine Options
Land Rover Discovery Engine TypesOptions, Costs & What to Expect
Every Land Rover Discovery engine type is available through our UK network with typical price ranges based on variant, engine code and budget.
Land Rover Discovery Reconditioned Engines (Recon)£2,400 - £4,500((supply only))
Land Rover Discovery Rebuilt Engines£3,000 - £6,000((supply only))
Land Rover Discovery Used Engines£1,500 - £3,500((supply only))
Land Rover Discovery Remanufactured Engines£4,200 - £7,500((supply only))
Land Rover Discovery Refurbished Engines£2,800 - £4,800((supply only))
Compare Land Rover Discovery 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 Land Rover Discovery within hours.
Engine Sizes
Land Rover Discovery Engines by SizeFind the Right Displacement for Your Variant
Every official UK-fitted displacement for the Land Rover Discovery is listed below, complete with original engine codes, production years across generations, and key failure patterns to watch for during replacement.
Introduced on the fifth-generation Discovery 5 (L462), the 2.0L Ingenium inline-four serves as the entry-level diesel, balancing modern emissions compliance with improved fuel economy for daily driving. Land Rover integrated lightweight aluminium architecture and a variable-geometry turbocharger to meet stringent Euro 6 standards without sacrificing low-end torque. This compact unit remains a popular choice for budget-conscious replacements due to its widespread availability and straightforward service intervals.
⚙
Engine Code(s)
AJ200D, 204DTD, D200
▣
Compatible Models (UK)
Discovery 5 S/SE/HSE/Commercial
ϟ
Power output
Verified by registration
△
Common Failure Points
Timing chain tensioner wear, DPF-related oil dilution causing bearing stress on early build years
Production Years: L462, 2017-2024
Get quotes for Land Rover Discovery 2.0L diesel enginesLand Rover Discovery Engines Fuel Type
Land Rover Discovery Engines by Fuel Type
Choose your Land Rover Discovery engine by fuel type to compare realistic replacement prices, known issues, and compatible UK supply options - from early 2.7 TDV6 units to the latest D300 mild-hybrid systems.
Land Rover Discovery Diesel Engines
DieselThe dominant fuel type across all UK Discovery generations, covering high-mileage 2.7L and 3.0L TDV6/SDV6 families that account for over 90% of replacement enquiries.
Common Land Rover Discovery Diesel Engine Families
- •276DT - 2.7L TDV6 with known oil pump casing failure risk
- •306DT - 3.0L twin-turbo SDV6 with documented turbo actuator faults
- •AJ200D - 2.0L Ingenium diesel sensitive to timing chain oil dilution
Found In
- •Discovery 3 L319 (2004-2009) - 276DT
- •Discovery 4 L494 (2009-2016) - 306DT Gen1
- •Discovery 5 L462 (2017-present) - 306DT Gen2, AJ200D
Known For
- •Exceptional low-end torque ideal for towing and off-road traction
- •Oil pump housing cracks on early 276DT units below 80k miles
- •AJ200D timing chain stretch accelerated by short urban journeys
Typical Diesel Models
- •2.7 TDV6 SE
- •3.0 TDV6 HSE
- •3.0 SDV6 Dynamic
1 of 3
Land Rover Discovery Diesel Engines
DieselThe dominant fuel type across all UK Discovery generations, covering high-mileage 2.7L and 3.0L TDV6/SDV6 families that account for over 90% of replacement enquiries.
Common Land Rover Discovery Diesel Engine Families
- •276DT - 2.7L TDV6 with known oil pump casing failure risk
- •306DT - 3.0L twin-turbo SDV6 with documented turbo actuator faults
- •AJ200D - 2.0L Ingenium diesel sensitive to timing chain oil dilution
Found In
- •Discovery 3 L319 (2004-2009) - 276DT
- •Discovery 4 L494 (2009-2016) - 306DT Gen1
- •Discovery 5 L462 (2017-present) - 306DT Gen2, AJ200D
Known For
- •Exceptional low-end torque ideal for towing and off-road traction
- •Oil pump housing cracks on early 276DT units below 80k miles
- •AJ200D timing chain stretch accelerated by short urban journeys
Typical Diesel Models
- •2.7 TDV6 SE
- •3.0 TDV6 HSE
- •3.0 SDV6 Dynamic
Land Rover Discovery Petrol Engines
PetrolSpecialist-grade V8 and modern Ingenium petrol options built for refined on-road performance, requiring precision rebuilding and longer supplier lead times.
Common Land Rover Discovery Petrol Engine Families
- •508PN - 4.4L naturally aspirated V8 with early timing tensioner faults
- •AJ133 - 5.0L supercharged V8 requiring specialist high-output rebuilding
- •306PT - 2.0L Ingenium petrol designed for high-revving refinement
Found In
- •Discovery 3 L319 (2004-2009) - 508PN
- •Discovery 4 L494 (2009-2016) - 508PN, AJ133
- •Discovery 5 L462 (2017-present) - 306PT (P300), 3.0L I6 (P360)
Known For
- •Smoother high-RPM cabin refinement compared to diesel vibration
- •Significantly lower fuel economy and higher long-term operating costs
- •508PN timing chain guide degradation on pre-2010 high-mileage units
Typical Petrol Models
- •4.4 V8 SE
- •5.0 Supercharged HSE
- •P300 S
Land Rover Discovery Mild Hybrid (MHEV) Engines
MHEVModern 48-volt electrified variants introduced on Discovery 5 to improve efficiency, torque response, and emissions compliance without compromising off-road capability.
Land Rover Discovery MHEV Engine Codes
- •306DTX - 3.0L diesel mild hybrid with integrated 48V belt alternator
- •P360 - 3.0L inline-six petrol supercharged with electric torque assist
- •48-volt belt-integrated starter generator recovers braking energy to battery
Found In
- •Discovery 5 L462 (2020-present) - D300 MHEV, D350 MHEV, P360 MHEV
Important Notes
- •Mild hybrid engines share core block architecture with standard variants
- •Replacement requires 48V electrical safety checks and BSG calibration
- •Supplier availability is narrower than conventional diesel or petrol units
Not sure which fuel type your Land Rover Discovery 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 Land Rover Discovery specialists.
Engine YearsGet quotes for 2004-2009 Land Rover Discovery 3 replacement engines →
Land Rover Discovery Engines by YearWhat Was Fitted & WhenLand Rover Discovery Engines by Year - What Was Fitted & When
This timeline covers all major Land Rover Discovery engine changes by year, helping owners identify their engine and compare UK rebuilt replacement prices from verified specialists.
⚙Key Changes
- ✓All-new L319 monocoque chassis replaced traditional ladder frame
- ✓2.7L Ford/PSA-derived TDV6 (276DT) introduced as sole diesel option
- ✓Terrain Response system debuted with engine mapping integration
- ✓Electronic air suspension (ECAS) became standard on higher trims
▣Main Engines
276DT- 2.7L diesel (TDV6 S/SE/HSE)
AJ41V8- 4.4L petrol (HSE luxury variants)
508PN- 4.4L petrol (late L319, rare UK spec)
▰Popular Models
- •Land Rover Discovery 3 TDV6 S
- •Land Rover Discovery 3 TDV6 SE
- •Land Rover Discovery 3 TDV6 HSE
- •Land Rover Discovery 3 V8 HSE
- •Land Rover Discovery 3 XS Commercial
🔧Known For
- ✓276DT oil pump casing failure risk - preventative upgrade recommended
- ✓Complex electronics and air suspension increase repair costs
- ✓Strong off-road capability but higher running costs than Discovery 2
- ✓Timing chain tensioners require monitoring beyond 100k miles
Engine Codes Covered:
276DTAJ41V8508PNNot sure which year your Land Rover Discovery 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 Land Rover Discovery specialists.
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