The Range Rover 20 HA50AA is a 4,999 cc, twin-turbocharged V8 petrol engine produced from 2022 onward. It features dual overhead camshafts (DOHC), 32 valves, and a 48-volt mild-hybrid system (MHEV) with an integrated starter-generator (ISG), delivering 390 kW (530 PS) and 750 Nm of torque. Direct fuel injection and variable valve timing ensure responsive performance and reduced emissions.
Fitted exclusively to the L460 Range Rover and L461 Range Rover Sport, the 20 HA50AA was engineered for high-output luxury with seamless torque delivery and enhanced stop-start efficiency. Emissions compliance was achieved through gasoline particulate filters (GPF), dual-loop EGR, and precise lambda control meeting Euro 6d-Final standards.
One documented concern is high-pressure fuel pump (HPFP) wear under sustained high-load conditions, referenced in Land Rover Service Bulletin SIB 03/2023/14. This issue stems from thermal stress on the cam-driven HPFP plunger in early production units, prompting a revised pump design with improved metallurgy introduced in Q3 2023.
Production years 2022–present meet Euro 6d-Final standards (VCA UK Type Approval #VCA/EMS/10287).
The Range Rover 20 HA50AA is a 4,999 cc V8 twin-turbocharged petrol engine engineered for full-size luxury SUVs (2022–present). It integrates a 48V mild-hybrid system with twin-scroll turbochargers to deliver high torque from low revs while meeting stringent Euro 6d-Final emissions. Designed for refined performance and regulatory compliance, it balances power with efficiency across global markets.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 4,999 cc | |
| Fuel type | Petrol (Unleaded) | |
| Configuration | V8, DOHC, 32-valve | |
| Aspiration | Twin-turbocharged | |
| Bore × stroke | 95.5 mm × 87.5 mm | |
| Power output | 390 kW (530 PS) @ 6,000 rpm | |
| Torque | 750 Nm @ 2,500–5,500 rpm | |
| Fuel system | Direct injection (Bosch HDEV6, 350 bar) | |
| Emissions standard | Euro 6d-Final | |
| Compression ratio | 10.5:1 | |
| Cooling system | Water-cooled with dual electric fans and auxiliary transmission cooler | |
| Turbocharger | Twin-scroll turbochargers (Honeywell Garrett) | |
| Timing system | Chain-driven DOHC with hydraulic tensioners | |
| Oil type | Land Rover STJLR.03.5006 (SAE 5W-30) | |
| Dry weight | 225 kg |
The twin-turbo V8 delivers immediate torque and effortless overtaking, aided by the 48V MHEV system for smoother stop-start and torque-fill during gear changes. However, the cam-driven high-pressure fuel pump is sensitive to fuel quality and thermal stress—premium 98 RON fuel is mandatory. Extended oil change intervals increase risk of timing chain wear and turbo bearing degradation. The engine is interference-design; timing failure causes catastrophic damage. Early units (pre-Q3 2023) should be monitored for HPFP noise or lean codes per SIB 03/2023/14.
Oil Specs: Requires Land Rover STJLR.03.5006 (5W-30) specification (Land Rover SIB 05/2022/03). Equivalent to ACEA C5 with OEM-specific additive limits.
Emissions: Euro 6d-Final certification applies to all 2022–present 20 HA50AA engines (VCA Type Approval #VCA/EMS/10287). Verified under RDE testing protocols.
Power Ratings: Measured under ISO 1585 standards. Output verified on dyno per JLR PT-2024 documentation.
Land Rover Technical Information System (TIS): Docs LRTIS-2022-ENG, SIB 03/2023/14
VCA Type Approval Database (VCA/EMS/10287)
ISO 1585: Road vehicles — Engine test code
The Range Rover 20 HA50AA was used across Land Rover's L460 and L461 platforms with longitudinal mounting and no external licensing. This engine received platform-specific adaptations—reinforced engine mounts in the L461 SV and revised exhaust routing in the L460 Autobiography—and from Q3 2023 the updated HPFP design was rolled out across all builds. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the left-hand cylinder head near the exhaust manifold (Land Rover TIS LRTIS-2022-ID). The 8th VIN digit indicates engine type ('5' for twin-turbo V8). Visual identification: twin intercoolers in front grille, 'V8 TWIN TURBO' badge on front fenders, and 48V battery in trunk. Critical differentiation from supercharged AJ133: absence of supercharger housing, presence of twin wastegate actuators and GPF. Service parts require build date verification—HPFP units changed in 09/2023 per SIB 03/2023/14.
The 20 HA50AA's primary reliability risk is high-pressure fuel pump wear, with elevated incidence in sustained high-load or hot-climate use. Land Rover internal data from 2024 indicated a notable share of pre-Q3 2023 engines requiring HPFP replacement before 80,000 km, while UK DVSA records show GPF regeneration faults as a common MOT emissions failure. Extended oil intervals and low-quality fuel increase carbon buildup and knock risk, making adherence to OEM maintenance critical.
Analysis derived from Land Rover technical bulletins (2022–2025) and UK DVSA failure statistics (2023–2025). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about RANGE-ROVER 20-HA50AA.
Comprehensive technical documentation and regulatory references
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