Engines Market

Range Rover P400e SPECIALISTS

Range Rover P400e Engine Replacement Compare Prices & Get Quotes

Get quotes today from trusted UK Range Rover P400e engine specialists. Compare prices on reconditioned, rebuilt and used engines to find the most reliable and cost-effective solution for your plug-in hybrid luxury SUV.

Supply & Fit Available
12-Month Warranty
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Range Rover P400e Engine
from£4,200 to £6,500...
  • Usedfrom £1,500
  • Reconditionedfrom £3,000
  • Common codesAJ20P4, 204PT
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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

Range Rover P400e Engine History & Specs at a Glance

When the P400e variant was introduced to the Range Rover lineup, it brought pioneering plug-in hybrid electric vehicle (PHEV) technology to the flagship luxury SUV, combining a refined 2.0-litre Ingenium petrol engine with an electric motor for seamless, low-emission performance.

Range Rover P400e
  1. 2018

    AJ20P4 (2.0L Petrol PHEV), ~404 PS combined, introduced in the L405 Range Rover facelift, featuring an 8-speed automatic transmission and an integrated electric motor with a 13.1 kWh battery.

  2. 2022

    Continued in the all-new L460 Range Rover generation, featuring an upgraded battery capacity (up to 31.8 kWh) and refined Ingenium petrol architecture for extended electric-only range and improved efficiency.

Every engine fitted to the Range Rover P400e is covered below, with UK rebuilt pricing and known failure points.

Engine Codes & Pricing

Range Rover P400e Engine Codes Specifications & Replacement Cost

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

AJ20P4 — 2.0L Petrol Plug-in Hybrid (2018-present) engine

AJ20P4 — 2.0L Petrol Plug-in Hybrid (2018-present)

Power Output
~300 PS (petrol engine) / ~404 PS (combined)
Years Fitted
2018-present

Can’t find your exact engine code?-> Get quotes for AJ20P4 Range Rover P400e engine replacement

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Common Problems

Range Rover P400e Engine Problems Repair Cost vs Replacement

The Range Rover P400e (AJ20P4) combines complex hybrid architecture with the 2.0L Ingenium petrol engine. While generally refined, it shares known weaknesses with the broader Ingenium petrol family. Rebuilt engines sourced through EnginesMarket include upgraded components addressing these original failure points, backed by a minimum 12-month unlimited-mileage warranty.

Common failure points and repair options

Water Pump & Cooling System Failure

Affected
Range Rover P400e (AJ20P4, 2018-present)
Typical failure mileage
60,000-120,000 miles
Root cause
Plastic water pump impellers and thermostat housings can degrade over time, leading to coolant loss, overheating warnings, and potential cylinder head damage if ignored.

Repair options

Repair tierDealer priceSpecialist price
Minor/Preventative£800-£1,500£400-£800
Full Replacement - rebuilt/reconditioned engine£6,000-£9,000£4,200-£6,500 [EM-QUOTE]
Our recommendation
For minor cooling leaks or early timing chain noise, targeted specialist repair is highly cost-effective. However, if the AJ20P4 has suffered catastrophic overheating, severe head warping, or timing chain jump, a full rebuilt engine with upgraded internals offers the best long-term reliability and protects your significant vehicle investment.

Timing Chain Stretch

Affected
Range Rover P400e (AJ20P4, 2018-present)
Typical failure mileage
60,000-120,000 miles
Root cause
Early Ingenium petrol timing chain tensioners can wear, allowing the chain to stretch and rattle on cold starts, with a risk of jumping teeth if left unaddressed.

Repair options

Repair tierDealer priceSpecialist price
Preventative Timing Chain Kit£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
For minor cooling leaks or early timing chain noise, targeted specialist repair is highly cost-effective. However, if the AJ20P4 has suffered catastrophic overheating, severe head warping, or timing chain jump, a full rebuilt engine with upgraded internals offers the best long-term reliability and protects your significant vehicle investment.
-> Compare rebuilt AJ20P4 Range Rover P400e engine prices

Don't Let Engine Failure Write Off Your Range Rover P400e

Don’t risk a costly cooling or timing chain failure ruining your premium Range Rover. By comparing quotes through EnginesMarket, you secure a rebuilt or reconditioned AJ20P4 engine with upgraded components that address known weak points, all backed by a comprehensive 12-month unlimited mileage warranty. Avoid main dealer premiums and benefit from nationwide supply and fit options tailored to your exact vehicle.

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FAQ

Range Rover P400e Engine ReplacementFrequently Asked Questions

Everything Range Rover P400e owners usually ask before choosing a rebuilt, reconditioned or used replacement engine.

Why Choose Us

Compare Range Rover P400e Engine Prices Today

Don’t overpay at the main dealer. Comparing quotes through EnginesMarket is 100% free and no-obligation, connecting you directly with vetted UK specialists who hold verified, warranty-backed replacement engines specifically for your Range Rover P400e.

100+100+ Range Rover P400e engines supplied through our network
12-Month12-Month Warranty on every rebuilt Range Rover P400e engine
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