Engines Market

Land Rover Defender 130 D300 SPECIALISTS

Land Rover Defender 130 D300 Engine Replacement Compare Prices & Get Quotes

Get quotes today from trusted UK Land Rover Defender 130 D300 engine specialists. Compare prices on reconditioned, rebuilt and used engines to find the best deal for your premium 8-seat 4x4.

Supply & Fit Available
12-Month Warranty
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Land Rover Defender 130 D300 Engine
from£8,000 to £12,00...
  • Usedfrom £4,000
  • Reconditionedfrom £6,500
  • Common codesDT306, AJ20D6

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How it works

3 Simple Steps to Finding the Right Replacement Engine

Clear information first, then the right engine and specialist for your exact vehicle.

Variant History

Land Rover Defender 130 D300 Engine History & Specs at a Glance

When the extended-wheelbase Land Rover Defender 130 launched in 2022, the D300 badge represented the sweet spot of the lineup - a 3.0-litre inline-six mild-hybrid diesel delivering 300 PS and 650 Nm of torque, designed for effortless towing and long-distance refinement.

Land Rover Defender 130 D300
  1. 2022

    Introduction of the DT306 / AJ20D6 3.0L inline-6 mild-hybrid diesel engine (300 PS / 296 hp, 650 Nm) in the L663 Defender 130, paired with an 8-speed ZF automatic and permanent four-wheel drive.

  2. 2023

    Present - Continued production with minor software calibrations for the 48V mild-hybrid system; no major mechanical changes to the 3.0L Ingenium diesel architecture.

Every engine fitted to the Land Rover Defender 130 D300 is covered below, with UK rebuilt pricing and known failure points.

Engine Codes & Pricing

Land Rover Defender 130 D300 Engine Codes Specifications & Replacement Cost

Find your exact engine code, specs and UK replacement cost guide.

DT306 / AJ20D6 — 3.0L Turbocharged Diesel MHEV (2022-present) engine

DT306 / AJ20D6 — 3.0L Turbocharged Diesel MHEV (2022-present)

Power Output
300 PS (296 hp)
Years Fitted
2022-present

Can’t find your exact engine code?-> Get quotes for DT306 Land Rover Defender 130 D300 engine replacement

-> Get quotes for DT306 Land Rover Defender 130 D300 engine replacement

Common Problems

Land Rover Defender 130 D300 Engine Problems Repair Cost vs Replacement

The 3.0-litre Ingenium inline-six diesel (DT306/AJ20D6) in the Land Rover Defender 130 D300 is a refined and capable powerplant, but early examples have shown susceptibility to timing chain and EGR system wear. Rebuilt engines through EnginesMarket include upgraded components addressing these original failure points, plus a minimum 12-month unlimited-mileage warranty.

Common failure points and repair options

Timing Chain Tensioner Wear

Affected
Land Rover Defender 130 D300 (DT306 / AJ20D6, 2022-present)
Typical failure mileage
60,000-100,000 miles
Root cause
The hydraulic timing chain tensioner can lose pressure over time, allowing the chain to stretch and produce a characteristic rattle on cold starts. If ignored, this can lead to catastrophic internal engine damage.

Repair options

Repair tierDealer priceSpecialist price
Preventative Chain Refresh£2,000-£3,500£1,500-£2,500
Full Replacement - rebuilt/reconditioned engine£10,000-£15,000£8,000-£12,000 [ESTIMATED - using Land Rover 306DT as proxy for 3.0L diesel]
Our recommendation
Do not ignore a cold-start rattle in your Land Rover Defender 130 D300. A timely chain and tensioner replacement by a specialist is a well-documented fix that preserves the engine's longevity at a fraction of the cost of a full rebuild.
-> Compare rebuilt DT306 Land Rover Defender 130 D300 engine prices

EGR Cooler Leaks & DPF Regeneration Issues

Affected
Land Rover Defender 130 D300 (DT306 / AJ20D6, 2022-present)
Typical failure mileage
50,000-90,000 miles
Root cause
The EGR cooler can develop internal or external leaks under sustained thermal cycling, leading to unexplained coolant loss and potential DPF contamination if left unaddressed.

Repair options

Repair tierDealer priceSpecialist price
EGR Cooler Replacement£1,200-£2,000£800-£1,500
Full Replacement - rebuilt/reconditioned engine£10,000-£15,000£8,000-£12,000 [ESTIMATED - using Land Rover 306DT as proxy for 3.0L diesel]
Our recommendation
If your Land Rover Defender 130 D300 is showing minor coolant loss or DPF warning lights but has not overheated, a targeted EGR cooler refresh is the most cost-effective route and can extend the engine's life significantly.
-> Compare rebuilt DT306 Land Rover Defender 130 D300 engine prices

Don't Let Engine Failure Write Off Your Land Rover Defender 130 D300

Whether it is a timing chain rattle or an EGR coolant leak, addressing issues early keeps your Land Rover Defender 130 D300 on the road and protects its strong resale value. If replacement is necessary, EnginesMarket connects you with vetted specialists offering rebuilt DT306 engines with upgraded components, a minimum 12-month unlimited-mileage warranty and nationwide delivery - saving you from main dealer premiums.

Compare Land Rover Defender 130 D300 Engine Replacement Prices Now ->

FAQ

Land Rover Defender 130 D300 Engine ReplacementFrequently Asked Questions

Everything Land Rover Defender 130 D300 owners usually ask before choosing a rebuilt, reconditioned or used replacement engine.

Why Choose Us

Compare Land Rover Defender 130 D300 Engine Prices Today

Comparing quotes is completely free and carries no obligation. By entering your registration you ensure every quote is precisely matched to your Land Rover Defender 130 D300 and its specific DT306 engine code, connecting you directly with vetted UK specialists who understand the L663 platform and can deliver reliable, warrantied solutions at a fraction of main dealer cost.

50+50+ Land Rover Defender 130 D300 engines supplied through our network
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