Jaguar Aj27 Engine Replacement - Rebuilt & Reconditioned Units from £4,500

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Jaguar Land Rover 2.7L V6 Twin-Turbo Diesel (AJ27) Engine

Durability Meets Refinement in a Proven Diesel Platform

The AJ27 engine, also known as the 2.7L TDV6, is a robust member of the AJ-V6 engine family jointly developed by Ford and PSA Peugeot Citroën. Produced between 2004 and 2010, this 60-degree V6 diesel powerplant quickly gained a reputation for its smooth torque delivery, refined character, and long-distance durability. Manufactured primarily in Dagenham, UK, the AJ27 was engineered to offer a balance between performance, fuel efficiency, and off-road readiness, making it particularly suitable for both Land Rover and Jaguar vehicles.


The engine features a compacted graphite iron (CGI) block - stronger and lighter than traditional cast iron - and employs a twin-turbocharged setup paired with high-pressure common rail injection. It delivers responsive low-end torque and smoother power curves across the rev range. Compared to its predecessor, the older 2.5L BMW-sourced TD5 engine, the AJ27 offered significantly improved NVH levels, emissions compliance (Euro 4), and reliability. While the 2.7L TDV6 would later evolve into the more powerful 3.0L AJD-V6 (AJ30), the AJ27 remains a sought-after unit for its mechanical simplicity and rebuild potential.


Today, the AJ27 is a popular replacement engine in the UK market due to its proven longevity, straightforward serviceability, and compatibility with a wide array of JLR models. Its low-stress design and rebuild-friendly components make it a favourite among diesel engine specialists and Land Rover enthusiasts.


Common vehicles powered by this unit include the Land Rover Discovery 3 2.7 TDV6, the Range Rover Sport 2.7 TDV6, and Jaguar saloons such as the Jaguar XF 2.7D and S-Type Diesel. These models continue to see high demand for AJ27 engine replacements across the UK and EU diesel markets.

Technical Specifications & Configuration

Engine Code
AJD-V6 / 276DT (AJ27)
Engine Size
2720cc / 2.7 Litres
Cylinder Configuration
60° V6
Aspiration
Twin-Turbocharged
Fuel Type
Diesel
Injection System
Common Rail Direct Injection (CRDI)
Valvetrain
DOHC - 24 valves
Compression Ratio
17.3:1
Cooling System
Water cooled
Block Material
Compacted Graphite Iron (CGI)
Head Material
Aluminium Alloy
Emission Standard
Euro 4 (EGR equipped; DPF optional on later models)
Power Output Range
190-211 PS (variant dependent)
Torque Output
440-520 Nm
Turbo Configuration
Twin parallel turbos with Variable Geometry (VGT)
Fuel Economy (Est.)
34-38 MPG combined (vehicle dependent)

Common Configurations

  • Land Rover Discovery 3: TDV6 SE (190 PS, 6-speed Auto)
  • Range Rover Sport: 2.7 TDV6 HSE (190 PS, AWD, ZF 6-speed)
  • Jaguar S-Type: 2.7D V6 Diesel (207 PS, ZF 6-speed)
  • Jaguar XF Luxury: 2.7L Diesel Auto (207 PS)
  • Optional Drivetrains: Rear-wheel drive (Jaguar) / AWD (Land Rover)

Noteworthy Engineering Highlights

  • 🛠️Compacted Graphite Iron Block: Superior strength-to-weight ratio
  • 🌀Twin Parallel Turbochargers: Enhanced torque across RPM range
  • 💧CRDI Fuel System: High-pressure common rail injection for efficiency
  • ⚙️Dual Overhead Cams: 24-valve DOHC for improved airflow & power
  • 🌡️Water-Cooled Turbos: Keeps charge temperatures stable under load

Engine Naming Reference

AJD-V6, 276DT, AJ27, 2.7 TDV6, Lion V6 Diesel, Jaguar 2.7D, Discovery 3 2.7 TD, Range Rover 2.7 TDV6, S-Type Diesel, XF 2.7D, twin-turbo V6 diesel

Types of Jaguar AJ27 Replacement Engines Available

Jaguar AJ27 Rebuilt Engines

High-performance rebuilds with OEM-grade pistons, gaskets & timing chains.

Jaguar AJ27 Remanufactured Engines

Every unit fully stripped and rebuilt to match factory tolerances.

Jaguar AJ27 Reconditioned Engines

Carefully inspected, cleaned, and restored by seasoned diesel specialists.

Jaguar AJ27 Replacement Engines

Direct-fit diesel engines ideal for quick swaps and no-hassle installations.

Jaguar AJ27 Refurbished Engines

Budget-friendly, tested units with clean internals and compression-verified heads.

Jaguar AJ27 Used Engines

Hand-selected from breakers and verified by our expert mechanics.

Compatible Models with AJ27 Engine

Land Rover Compatible Models

Land Rover Discovery 3 Engine - 2.7L TDV6 Diesel AJ27 Compatibility

Land Rover Discovery 3
Range Rover Sport Engine - 2.7 TDV6 AJ27 Diesel Compatibility

Range Rover Sport

Jaguar Models

Jaguar S-Type Engine - 2.7L V6 Diesel AJ27 Compatible Model

Jaguar S-Type
Jaguar XF Engine - 2.7 TDV6 Diesel AJ27 Engine Compatible

Jaguar XF

AJ27 Engine Applications


Land Rover Applications

Land Rover Logo
DISCOVERY 3 190-211HP
2004-2009
2.7L TDV6 Diesel AJ27
RANGE ROVER SPORT 190-211HP
2005-2009
AJD-V6 / TDV6 Diesel Variants

Jaguar Applications

Jaguar Logo
JAGUAR S-TYPE 190-207HP
2004-2007
2.7 V6 Diesel AJD-V6
JAGUAR XF 207-211HP
2008-2011
2.7 TDV6 Luxury / Premium trims

⚠️ Note: If you're unsure whether your vehicle has the AJ27 engine, simply enter your registration number above or contact our support team for a free compatibility check.

Common AJ27 Engine Problems & Solutions


Pricing, Warranty & Availability

Most Popular

Rebuilt Jaguar AJ27 Ingenium Engine

From
£4,500
(Supply Only)
  • ✔ Fully Disassembled & Rebuilt
  • ✔ OEM-Grade Replaced Parts
  • ✔ Like-New Condition
  • ✔ 12-24 Month Warranty

Reconditioned Jaguar AJ27 Engine

From
£3,700
(Supply Only)
  • ✔ Professionally Reconditioned
  • ✔ Thoroughly Inspected & Tested
  • ✔ Restored to OEM Standard
  • ✔ 12 Month Warranty
Cheapest Option

Used Jaguar AJ27 Engine

From
£2,100
(Supply Only)
  • ✔ Basic Inspection
  • ✔ Compression Tested
  • ✔ Known Service History
  • ✔ 30 Days to 3 Month Warranty

Refurbished Jaguar AJ27 Engine

From
£3,300
(Supply Only)
  • ✔ Partial Overhaul
  • ✔ Key Component Replacement
  • ✔ Cost-effective Option
  • ✔ 3 to 6 Month Warranty

📦 Stock Availability & Delivery Time

  • 🔄 High availability across UK suppliers
  • 🚚 Next-day delivery on in-stock units (supply only)
  • 🛠️ 7-10 day turnaround for rebuilt units
  • 📦 Free UK mainland delivery (select suppliers)

⭐ What You Get With Every Jaguar AJ27 Engine

  • 🧰 OEM-quality rebuilds using JLR-approved parts
  • 🔎 Full inspection reports w/ compression & leak-down tests
  • 📋 Engine serial & block codes verified
  • 💬 UK-based support before & after sale
  • 🔄 Exchange options for faulty units
  • 🧾 Simple returns & warranty claims

Jaguar AJ27 Engine Reconditioning Process


STEP 1 1 Day

Initial Inspection & Diagnostic Reporting

  • Visual & Dimensional Checks: Deck flatness, bore wear, and head warpage.
  • Oil & Coolant Analysis: Detect fuel dilution, glycol traces, or contamination.
  • Compression Testing: Verify ring and valve sealing before teardown.
STEP 2 1-2 Days

Complete Strip Down & Component Cleaning

  • Media Blast Cleaning: Remove carbon & sludge from internals.
  • Chemical Degreasing: Clean oil pump, HPFP, and turbo cores.
  • Part Identification: Catalog rods, pistons, and cams for traceability.
STEP 3 2-3 Days

Non-Destructive Testing & Machining

  • Crack Testing: Magnaflux and dye penetrant for structural faults.
  • Boring & Honing: Re-bore cylinders and hone for correct finish.
  • Crank Grinding: Undersize grind and dynamic balance.
  • Surface Milling: Flatness to <0.03mm deviation.
STEP 4 1 Day

Component Replacement with OEM Parts

  • Pistons & Rings: Forged internals matched to rebored block.
  • Timing Kit: New chain, guides, tensioner, sprockets.
  • Seals & Gaskets: All major gaskets and seals replaced.
  • Water & Oil Pump: New OEM pumps with updated specs.
STEP 5 1 Day

Assembly & Torque Angle Verification

  • Sequential Torque: Head & main bolts torqued to spec.
  • Phaser Setup: Cam phasers installed and OCVs verified.
  • Injector Setup: Calibrated with precision flow test bench.
STEP 6 1 Day

Hot Bench Dyno & Road Simulation

  • Cold Start Test: Oil pressure and tensioner function verified.
  • Load Simulation: Urban/motorway load profiles checked for leaks and stability.
  • Compression & Emissions: Ring seal and smoke tested before dispatch.
Land Rover replacement engine - Engine Finders

Why Choose Engine Finders for Jaguar AJ27 Petrol Engine?

At Engine Finders, we don’t just sell engines - we deliver peace of mind. Here’s why Land Rover & Jaguar owners across the UK trust us:

  • ✔ Trusted UK Suppliers

    We work exclusively with vetted UK suppliers who specialize in Land Rover engines - no middlemen, no guesswork.

  • ✔ Save Up to 60% vs Dealership

    Why overpay? Compare quotes from multiple sellers & save up to 60% on Land Rover replacement engines, get top-tier quality for less.

  • ✔ Tested & Certified Engines

    Every Land Rover engine is thoroughly tested for durability and performance, backed by a 6-24 month warranty.

  • ✔ Fast Quotes & Faster Delivery

    Quick quotes, nationwide delivery, and optional vehicle recovery, get your Land Rover back on the road in no time.

  • ✔ Expert Land Rover Defender Support

    Need help? Our friendly Land Rover specialists guide you through engine compatibility, specs, and installation process.

  • ✔ AJ27 Engines Specialists

    From Range Rover Evoque to Jaguar XE, we offer all variants (150PS / 180PS / 220PS).

  • ✔ Performance Matched with Experience

    Our remanufactured and reconditioned engines often meet or exceed OEM specs - ready for serious off-road and on-road action.

  • ✔ We Work for You - Not the Suppliers

    We’re 100% on your side, helping you choose the best engine deal instead of just pushing supplier specials.

Tuning & Performance Upgrades


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Frequently Asked Questions - Jaguar AJ27 Engine

How much does a reconditioned Jaguar AJ27 engine cost in the UK?

A fully rebuilt Jaguar AJ27 engine typically costs between £2,700 and £4,500, depending on mileage, condition, and included components. Most suppliers offer a 12-month unlimited mileage warranty and may require a core unit in exchange. Labour costs and optional turbo or EGR replacements can affect the final quote.

What is the average lifespan of the Jaguar AJ27 engine?

When properly maintained, the AJ27 engine can exceed 200,000 miles. Regular oil changes every 8,000-10,000 miles, along with attention to the timing chain and PCV system, are crucial for longevity. Engines driven gently and serviced by JLR-trained technicians typically last the longest.

Does the AJ27 engine have timing chain issues?

Yes, early AJ27 units are known for timing chain stretch and guide wear, particularly after 80,000 miles. Symptoms include a metallic rattle on cold starts and poor fuel economy. A full timing kit replacement using OEM parts is recommended, along with 5W-30 synthetic oil to reduce friction.

Can I remap the Jaguar AJ27 for more power?

Yes, ECU remapping the AJ27 can safely add 30-40 BHP and improve torque by up to 70 Nm. However, ensure your engine is in good condition and serviced before tuning. For optimal gains, consider pairing with an upgraded intercooler or turbocharger. Reputable remaps retain MOT compliance in most cases.

Which Jaguar and Jaguar models use the AJ27 engine?

The AJ27 engine is commonly found in Land Rover Discovery 3, Range Rover Sport (pre-2010), and Jaguar S-Type 2.7D models. It’s a 2.7L twin-turbo V6 diesel engine shared across several JLR platforms between 2004-2010. Always confirm engine code and compatibility before sourcing a replacement.

What oil is recommended for the AJ27 engine?

Use 5W-30 C1 low SAPS fully synthetic oil that meets ACEA C1 or Ford WSS-M2C934-B specifications. This helps protect the diesel particulate filter (DPF) and turbo system. Oil changes are advised every 8,000-10,000 miles or annually, whichever comes first.

Is the AJ27 Euro 4 or Euro 5 compliant?

Most AJ27 engines are Euro 4 compliant, especially those fitted before 2009. Some late models with software updates and DPF systems may reach Euro 5 levels, but it depends on VIN and region. For ULEZ entry, always check with your local authority using the vehicle registration number.

Can I swap an AJ27 engine with a newer JLR diesel unit?

Technically, swapping to a newer JLR diesel like the D306 or D204 is possible but requires major ECU, wiring, and transmission adaptations. The AJ27 uses a different control architecture. For cost-effective repairs, sourcing a rebuilt AJ27 is more practical than full engine retrofits.

How do I clean the EGR valve or DPF on an AJ27 engine?

To clean the AJ27's EGR valve, remove carbon buildup using EGR cleaner sprays or manual scrubbing with intake off. For the DPF, use forced regeneration via diagnostics or off-vehicle thermal cleaning. Always monitor back-pressure before deciding to replace the unit. Avoid driving short urban trips that clog these systems.