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Mayfair Rebuilds workshop with rebuilt JLR engine

/// Specialists in Land Rover Engine Replacement & Rebuilds

Used and Reconditioned Land Rover AJ20D6 Engines for Sale: Up to 12 Month Warranty Included

Find quality Land Rover AJ20D6 engines from Mayfair Rebuilds at the very amazing prices. Used and reconditioned engine supply and fit service with fast turnaround. Enter your reg now!

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Factory Standard
Engine Rebuilds

Built to OE specifications

In-House Strip
Machine & Build

All work carried out in-house

Up to 12 Month
Warranty

Peace of mind guaranteed

Nationwide Collection
& Delivery

Across the UK mainland

Expert Support
Before & After Fit

Real people, real expertise

Trusted By Jlr Owners Across the Uk

Land Rover
Range Rover
Jaguar

Land Rover AJ20D6 Engine Details

Engine Make : Land Rover
Engine Fuel : Diesel
Engine Horse Power : 506HP
Engine Size : 3.0
Engine Code : AJ20D6
Engine Layout : V
Engine Actual CC : 2999
Engine Cylinders : 8
Engine Valves : 32
Engine Power KW : 372 kW
Engine Fuel Supply : Direct Injection
Engine Charge : Exhaust Turbo Charger
Engine Camshaft Drive : All-wheel Drive
/// COMMON Land Rover AJ20D6 FAILURE POINTS

Land Rover AJ20D6 Engine Problems and Solutions

These documented faults affect certain models and versions. Each needs diagnosis before deciding whether engine repair, rebuilding or replacement is required.

Common problem Documented cause or application Our assessment and engine solution

Oil filter housing cracks and leaks

Incorrect plastic used in certain housings can crack and release engine oil. UK recall R/2024/255 covers affected vehicles.

Assess the engine for damage caused by oil loss. Any outstanding recall repair should be arranged through Land Rover.

Engine drive belt chirping or squealing

JLR identifies drive belt or idler pulley misalignment on affected AJ20D6 engines.

Inspect the accessory drive and identify the required repair before recommending internal engine work.

Engine fails to restart after stop/start

A fuel pump driver module software fault is documented on certain 2021 Range Rover and Range Rover Sport models, with code P0087 84.

Check fault codes and fuel delivery. Confirm whether the module is responsible before considering an engine rebuild or replacement.

/// Workshop-Led Process

4 Step Process to Engine Replacement

A clear, technician-led route from diagnosis to supply, fitment and handover for Land Rover engines.

01
Vehicle and fault assessment

Vehicle & Fault Assessment

We assess symptoms, engine condition and likely failure path before recommending the next step.

02
Engine code and compatibility check

Engine Code &
Compatibility Check

Exact engine code, platform compatibility and replacement criteria are verified for the correct fit.

03
Engine rebuild preparation

Rebuild / Preparation /
Sourcing Path

We determine the right route — used, reconditioned or rebuilt — then prepare or source accordingly.

04
Supply fitment and handover

Supply, Fitment &
Handover

The engine is supplied, fitted, tested and handed over with aftercare guidance and support.

Technician AssessedChecked by experienced engine specialists.

Code MatchedExact engine code and platform verified for perfect fit.

Prepared to StandardEngines prepared, tested and quality assured.

Fitted & SupportedInstalled, tested and backed by aftercare support.

Why Choose Mayfair

Why Mayfair Is the Smarter Choice for Land Rover Engine Replacement

Direct Land Rover engine expertise, in-house rebuild standards, engine code compatibility control, supply and fit coordination, and dependable aftercare — all under one accountable team.

01

Direct Land Rover Expertise

Specialist knowledge across Land Rover engine replacement, rebuild and diagnostics.

02

One Accountable Team

One team manages assessment, sourcing or rebuild route, fitment planning and handover.

03

In-House Standards

Engines are prepared, rebuilt and quality-checked under workshop-controlled standards.

04

Code & Compatibility Control

Engine code, platform and fitment criteria are verified before any engine is recommended.

Mayfair Rebuilds Workshop-Led
Advantage
05

Rebuild Depth

Strip-down inspection, component replacement and machining are carried out where required.

06

Aftercare & Warranty

Clear warranty-backed support and post-fit guidance for added peace of mind.

07

UK Sourcing Network

Credible UK supply channels help secure suitable donor and replacement engines.

08

Supply & Fit Coordination

From engine selection to installation planning, the whole route is coordinated clearly.

Reviews & Proof

Trusted by Land Rover, Range Rover & Jaguar Owners Across the UK

Verified feedback from customers who chose Mayfair Rebuilds for Land Rover engine
replacement, Range Rover engine rebuilds, Jaguar engine supply and fit, and workshop-
prepared used, rebuilt and reconditioned engines. Real vehicle references, real outcomes
and support you can trust.

★ ★ ★ ★ ★
5.0 / 5 Average Customer Rating Based on verified customer reviews
JLR JLR Specialists
Workshop Prepared
UK-Wide Support
★★★★★“

Daniel M.

Range Rover Sport 3.0 SDV6

Engine issue diagnosed properly, options explained clearly, and the replacement unit fitted without drama. Smooth service from start to finish.

★★★★★“

Sarah T.

Land Rover Discovery 4 3.0 TDV6

Other companies just wanted to sell an engine. Mayfair actually checked compatibility, explained the rebuild route, and delivered exactly what was promised.

★★★★★“

James R.

Jaguar XF 2.0 Ingenium Diesel

The reconditioned engine has been faultless. Excellent communication, realistic timescales and proper aftercare once the car was back on the road.

★★★★★“

Natalie P.

Range Rover Velar 2.0 Ingenium

Professional workshop, clear paperwork and no hard sell. They matched the correct engine code and coordinated everything properly.

★★★★★“

Michael C.

Jaguar F-PACE 3.0 Supercharged

Rare to find this level of technical knowledge and customer service together. The engine rebuild quality and handover were excellent.

25+ Years Experience

Specialist engine
replacement knowledge.

Warranty-Backed Support

Up to 12 months cover
for added confidence.

UK-Wide Coverage

Supply, fitment support
and nationwide reach.

Thousands Helped

Used, rebuilt and
reconditioned engines
supplied and rebuilt.

Land Rover AJ20D6 Engine Rebuild, Replacement, Supply & Fit UK

The Land Rover AJ20D6 is a 3.0 litre, six cylinder Ingenium diesel used in selected Land Rover models. If it develops a fault, starting, power, oil pressure or engine noise may change. The right solution depends on the engine’s condition and the exact vehicle specification. Mayfair Rebuilds supplies used, reconditioned and rebuilt Land Rover engines. We also rebuild engines and provide engine supply and fit. We check your registration and engine details before recommending an option, as AJ20D6 versions and vehicle equipment can differ.

If your Land Rover has knocking, low oil pressure, smoke, warning lights or loss of power, ask us to review the fault. We can explain whether rebuilding the original engine or sourcing a replacement may suit the vehicle. We support customers across the UK mainland. Rebuilt engines are tested, and warranty terms can be confirmed before work starts. Contact today to check your Land Rover AJ20D6 engine and discuss the available options.

Land Rover AJ20D6 Engine Rebuild and Replacement

A failed AJ20D6 engine does not always need a full replacement. Mayfair Rebuilds offers engine rebuilds, used engines, reconditioned engines, rebuilt engines and engine supply and fit. We consider the symptoms, engine condition and vehicle details. If the main engine parts remain repairable, rebuilding may be an option. If damage is too extensive, a correctly matched replacement may suit the vehicle better. Used, reconditioned and rebuilt engines differ in condition, preparation and cost. We explain the available options before work begins. The right choice depends on the vehicle, damage, intended use and budget. We do not match an engine by size alone: AJ20D6 output and vehicle equipment can differ.

Send your registration, VIN if available, and engine code for a match. Mayfair Rebuilds checks the vehicle specification before confirming the correct engine. This helps avoid ordering a unit with the wrong output or fitment. Tell us if you need supply only or engine supply and fit. Availability depends on the exact model and specification.

LR AJ20D6 Engine Matching, Testing and UK Wide Support

Mayfair Rebuilds prepares engines in house, from strip down and machine work to build. Rebuilt engines are made to OE specification and checked through pressure, compression, leak down and dynamic tests. We provide UK mainland collection and delivery, plus support before and after fitting. Warranty cover can be up to 12 months; confirm the terms and included work for your quote.

A correct engine match matters, but symptoms need proper assessment. Low oil pressure, a deep knock, smoke or loss of power can point to internal damage but do not prove the engine has failed. Share the registration, engine code, fault history and warning messages with Mayfair Rebuilds. We can explain whether an engine rebuild, used engine, reconditioned engine or rebuilt replacement may suit your Land Rover. If the oil pressure warning is on or the engine is overheating, stop driving and arrange an assessment; continued running can cause more damage.

Frequently Asked Questions

Common Questions Answered

Everything you need to know about our engine replacement, rebuild and supply process.

It is a 3.0 litre, six cylinder Ingenium diesel fitted to selected Land Rover models. Exact output and fitment depend on the vehicle.
Some Defender, Discovery and Range Rover models use it. Check the registration and engine code, as not every 3.0 litre diesel is an AJ20D6.
Price depends on the engine type, availability, vehicle specification and whether fitting is needed. Ask Mayfair Rebuilds for a quote after a compatibility check.
Send the registration, VIN if available, engine code and model year. The replacement must also match the vehicle's output and equipment.
Mayfair Rebuilds can check used, reconditioned and rebuilt engine options. Availability depends on stock and the exact vehicle specification.
It may be possible if the main engine parts are suitable for repair. Mayfair Rebuilds assesses the engine before recommending a rebuild or replacement.
Yes. Mayfair Rebuilds offers engine supply and fit, subject to confirming compatibility and availability.
Coverage can be up to 12 months, depending on the engine and work agreed. Ask Mayfair Rebuilds to confirm the terms with your quote.
Knocking, oil pressure warnings, smoke, poor starting, overheating or loss of power can signal a fault. The cause needs checking.
Stop as soon as it is safe and switch off the engine. Continued driving may cause more damage.