Vehicle & Fault Assessment
We assess symptoms, engine condition and likely failure path before recommending the next step.
/// Specialists in Land Rover Engine Replacement & Rebuilds
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!
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
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. |
A clear, technician-led route from diagnosis to supply, fitment and handover for Land Rover engines.
We assess symptoms, engine condition and likely failure path before recommending the next step.
Exact engine code, platform compatibility and replacement criteria are verified for the correct fit.
We determine the right route — used, reconditioned or rebuilt — then prepare or source accordingly.
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.
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.
Specialist knowledge across Land Rover engine replacement, rebuild and diagnostics.
One team manages assessment, sourcing or rebuild route, fitment planning and handover.
Engines are prepared, rebuilt and quality-checked under workshop-controlled standards.
Engine code, platform and fitment criteria are verified before any engine is recommended.
Strip-down inspection, component replacement and machining are carried out where required.
Clear warranty-backed support and post-fit guidance for added peace of mind.
Credible UK supply channels help secure suitable donor and replacement engines.
From engine selection to installation planning, the whole route is coordinated clearly.
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.
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.
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.
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.
Range Rover Velar 2.0 Ingenium
Professional workshop, clear paperwork and no hard sell. They matched the correct engine code and coordinated everything properly.
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.
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.
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.
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.
Everything you need to know about our engine replacement, rebuild and supply process.