Is it worth replacing the engine in a Land Rover Discovery P300-

Yes. A typical Land Rover Discovery P300 holds a UK market value of £25,000-£45,000, making a £4,200-£6,500 rebuilt engine a financially sound investment that preserves the vehicle's performance, reliability and strong resale value for years to come.

How long does a Land Rover Discovery P300 engine replacement take-

A professional supply and fit service for a Land Rover Discovery P300 typically takes 2 to 4 days, depending on the specialist's workload and whether any ancillary components like the cooling system are being upgraded simultaneously. Sourcing a quality rebuilt unit may add a few days.

What is the difference between the Land Rover Discovery P300 and the D300 engine-

The Land Rover Discovery P300 uses a 2.0-litre turbocharged inline-4 petrol engine (204PT) producing 300 PS, prioritising smooth, responsive performance and refinement. In contrast, the D300 uses a 3.0-litre inline-6 mild-hybrid diesel engine focused on low-end torque and fuel economy for heavy towing.

Land Rover Discovery P300 SPECIALISTS

Land Rover Discovery P300 Engine Replacement Compare Prices & Get Quotes

Get quotes today from trusted UK Land Rover Discovery P300 engine specialists. Compare prices on reconditioned, rebuilt and used engines to find the best deal for your premium 7-seat 4x4.

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Land Rover Discovery P300 Engine

from£4,200 to £6,500...

Usedfrom £1,500
Reconditionedfrom £3,000
Common codes204PT, AJ200P

Land Rover discovery P300 Used Engine — 204PT / AJ200P

Land Rover discoveryUsed Engine — 204PT / AJ200P

Land Rover discovery P300 Reconditioned Engine — 204PT / AJ200P

Land Rover discoveryReconditioned Engine — 204PT / AJ200P

Land Rover discovery P300 Rebuilt Engine — 204PT / AJ200P

Land Rover discoveryRebuilt Engine — 204PT / AJ200P

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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 Discovery P300 Engine History & Specs at a Glance

When the all-new L462 Land Rover Discovery 5 launched, the P300 badge introduced a refined, high-output 2.0-litre turbocharged Ingenium petrol engine, offering a smooth and responsive alternative to the diesel lineup for the premium 7-seat SUV.

2017
Introduction of the 204PT / AJ200P 2.0L turbocharged inline-4 petrol engine (300 PS / 296 hp) in the Discovery 5, paired with an 8-speed ZF automatic and permanent four-wheel drive.
2021
Present - Continued production with minor engine management software updates to improve throttle response and emissions compliance; the 2.0L Ingenium architecture remains unchanged.

Every engine fitted to the Land Rover Discovery P300 is covered below, with UK rebuilt pricing and known failure points.

Engine Codes & Pricing

Land Rover Discovery P300 Engine Codes Specifications & Replacement Cost

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

204PT / AJ200P — 2.0L Turbocharged Petrol (2017-present)

Power Output: 300 PS (296 hp)
Years Fitted: 2017-present

Can’t find your exact engine code?-> Get quotes for 204PT Land Rover Discovery P300 engine replacement

-> Get quotes for 204PT Land Rover Discovery P300 engine replacement

Common failure points and repair options

Water Pump & Cooling System Failure

Affected: Land Rover Discovery P300 (204PT / AJ200P, 2017-present)
Typical failure mileage: 60,000-120,000 miles

Root cause

Plastic components in the cooling system (thermostat housing, water pump) can become brittle under sustained thermal cycling, leading to coolant leaks and subsequent overheating risks.

Repair options

Repair tier	Dealer price	Specialist price
Preventative Cooling Refresh	£800-£1,200	£500-£800
Full Replacement - rebuilt/reconditioned engine	£6,000-£9,000	£4,200-£6,500 [EM-QUOTE]

Our recommendation

If your Land Rover Discovery P300 is exhibiting minor coolant seepage but has not suffered thermal damage, a targeted preventative cooling system refresh by a JLR specialist is the most cost-effective route. However, if the engine has overheated, a full rebuilt replacement is the only reliable long-term solution.

-> Compare rebuilt 204PT Land Rover Discovery P300 engine prices

Timing Chain Stretch

Affected: Land Rover Discovery P300 (204PT / AJ200P, 2017-present)
Typical failure mileage: 60,000-120,000 miles

Root cause

Over time, the timing chain tensioners can lose hydraulic pressure, allowing the chain to stretch and produce a characteristic rattling noise on cold starts. If ignored, this can lead to catastrophic internal engine damage.

Repair options

Repair tier	Dealer price	Specialist price
Timing Chain & Tensioner Replacement	£2,500-£4,000	£1,500-£2,500
Full Replacement - rebuilt/reconditioned engine	£6,000-£9,000	£4,200-£6,500 [EM-QUOTE]

Our recommendation

Do not ignore a cold-start rattle in your Land Rover Discovery P300. 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 204PT Land Rover Discovery P300 engine prices

Don't Let Engine Failure Write Off Your Land Rover Discovery P300

Whether it is a cooling system leak or a timing chain rattle, addressing issues early keeps your Land Rover Discovery P300 on the road and protects its strong resale value. If replacement is necessary, EnginesMarket connects you with vetted specialists offering rebuilt 204PT engines with upgraded components, a minimum 12-month unlimited-mileage warranty and nationwide delivery - saving you from main dealer premiums.

Compare Land Rover Discovery P300 Engine Replacement Prices Now ->

FAQ

Land Rover Discovery P300 Engine ReplacementFrequently Asked Questions

Everything Land Rover Discovery P300 owners usually ask before choosing a rebuilt, reconditioned or used replacement engine.

A full rebuilt or reconditioned engine replacement for a Land Rover Discovery P300 typically ranges from £4,200 to £6,500 for supply only, depending on the specialist and the extent of upgrades included. Used engines start around £1,500 but carry higher risk, while rebuilt units include upgraded components and a 12-month warranty.

-> Compare Land Rover Discovery P300 engine replacement quotes today.

The most common early warning signs in the Land Rover Discovery P300 are unexplained coolant loss, a distinct rattling noise from the front of the engine on cold starts (timing chain rattle), or illuminated temperature warning lights. You should also check for sweet-smelling exhaust or oil residue around the valve cover.

-> If you notice these symptoms, get your Land Rover Discovery P300 checked by a specialist immediately.

Why Choose Us

Compare Land Rover Discovery P300 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 Discovery P300 and its specific 204PT engine code, connecting you directly with vetted UK specialists who understand the L462 platform and can deliver reliable, warrantied solutions at a fraction of main dealer cost.

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