Land RoverAJ20D6 (Ingenium 3.0 I6 D)Diesel3.0L I6 MHEV Turbo2020–present

Land Rover AJ20D6 (Ingenium 3.0 I6 Diesel) Engine - Specs, Reliability & Replacement Cost

The AJ20D6 is JLR's modern straight-six diesel - smooth and powerful, but early examples have AdBlue and EGR issues. Backed by 810+ real UK enquiries in 2025 [EM-VERIFIED].

Compare AJ20D6 (Ingenium 3.0 I6 Diesel) Engine Prices
810+Enquiries
3Models Fitted
72/100Engine Score
Part of Engine Finders

At a Glance

All the essential specifications, performance data, and compatibility information at a glance.

Engine Family

AJ20D6 (Ingenium 3.0 I6 Diesel)

Fuel

Diesel

Configuration /
Displacement

3.0L I6 MHEV Turbo

Power Range

300–350 hp [THIRD-PARTY]

Years Produced

2020–present

Models Fitted (BMW only)

Cross-Brand Fitment

Also fitted to Jaguar (F-Pace, XF, XJ)

Overall Engine Score

72/100

★★★★☆

VERDICT & RATING

Verdict & Rating

Rating:

5

out of 5

80% confidence - based on 810+ real UK enquiries, specialist workshop reports, and JLR service data for this relatively new engine family.

The AJ20D6 is a refined, powerful modern straight-six - early AdBlue and EGR issues are being resolved - buy a later example with full JLR service history.

Engine Score breakdown:

DimensionScore (of 20)

Reliability

Star rating (4.0★) × 4 = 16

16 /20

Repair Cost

Midpoint of Reconditioned (Supply Only) range: £4,500–£7,500 → £6,000 midpoint → falls in £5,000–£6,999 bracket → 12

12 /20

Repairability

Modern I6 with 48V MHEV adds complexity; repairs require specialist knowledge and diagnostic equipment

12 /20

Parts Supply

AJ20D6 parts availability improving; shared with Jaguar aids supply chain

16 /20

Replacement Economics

Reconditioned cost (£6,000 midpoint) as % of lowest typical vehicle value (Defender L663 ~£35,000+) = 17% → falls in 30–44% bracket → 16

16 /20

Total Engine Score

72 / 100

Best for:

Avoid if:

COMPATIBILITY

Compatibility

Engine engines are fitted across 3+ models from 2020–2022.

Land Rover Engine

Compatibility mapped across generations and badges.

2020
2 Years of Production
2022

Range

Rover

Generation

L460

Variant/Badge

D300 / D350 (AJ20D6)

Years

2022–present

Range

Rover Sport

Generation

L461

Variant/Badge

D300 / D350 (AJ20D6)

Years

2022–present

Defender

Generation

L663

Variant/Badge

D250 / D300 (AJ20D6)

Years

2020–present

Other Models

Engine also appears in limited variants and markets.

View full details ›

Compatibility Verified

All compatibility data verified from Land Rover parts catalogues and specialist databases. [LR-VERIFIED]

Also powers the Jaguar F-Pace, XF, and XJ → [Jaguar AJ20D6 page].

COST GUIDE

Cost Guide

All prices are estimates from UK specialists

[EM-QUOTE]

USED

Supply Only

£2,500–£4,500

Fitted (Indie)

£3,500–£5,900

Warranty

Varies by supplier
Most Popular

RECONDITIONED

Supply Only

£4,500–£7,500

Fitted (Indie)

£5,500–£9,000

Warranty

12 months typical

REBUILT

Supply Only

£6,500–£10,500

Fitted (Indie)

£7,500–£12,000

Warranty

12–24 months typical

Fitting an AJ20D6 typically takes 12–16 hours at £65–£95/hr (independent) or £110–£160/hr (London/SE dealer) [EM-QUOTE].

Parts cost is identical across Land Rover and Jaguar applications; labour time varies by model and engine bay access.

Compare AJ20D6 (Ingenium 3.0 I6 Diesel) engine prices from UK specialists

FAQ

FAQ

TRUST & PROOF

Why Owners Trust Us

Trusted Suppliers

Every garage and engine rebuilder in our network is vetted, rated and reviewed by real AJ20D6 owners, as part of the Engine Finders network.

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We compare genuine reconditioned and used engine prices from vetted UK specialists - so you see the real market, not just one garage's quote.

UK Coverage

From Cornwall to the Highlands, our specialist network covers the whole UK with expert AJ20D6 knowledge.