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 HA5…
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 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.
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.
The most common questions about engine codes, what they mean, how to find them and how this database works
The 20 HA50AA offers exceptional performance and refinement but has known issues with the high-pressure fuel pump and GPF in early builds (pre-2023). With strict adherence to oil changes (every 15,000 km), use of 98 RON fuel, and avoidance of short-trip driving, well-maintained examples can achieve high mileage reliably.
Top issues include high-pressure fuel pump wear, GPF clogging, turbo wastegate actuator faults, and 48V MHEV system warnings. These are documented in Land Rover SIBs 03/2023/14 and 02/2023/09, and commonly appear in high-load or poorly maintained vehicles.
The 20 HA50AA powers the Range Rover L460 (2022–present) and Range Rover Sport L461 (2022–present) as the V8 Twin Turbo. It is exclusive to these models and not used by other manufacturers. All units meet Euro 6d-Final emissions standards.
Yes. The 20 HA50AA responds well to ECU remapping, typically gaining +50–80 kW on stock hardware. The twin-turbo setup and forged internals support moderate increases. However, aggressive tuning without upgraded fueling, intercooling, or GPF management may reduce longevity and trigger emissions faults.
Real-world consumption is ~18.5 L/100km (city) and ~12.2 L/100km (highway), or about 15 mpg UK combined. Expect 13–17 mpg (UK) depending on driving style and terrain. Premium 98 RON fuel is mandatory for optimal performance and knock prevention.
Yes. The 20 HA50AA is an interference engine. If the timing chain fails or jumps, pistons can collide with open valves, causing severe internal damage. Regular inspection of chain tensioners and guides is essential to prevent catastrophic failure.
Land Rover specifies SAE 5W-30 synthetic oil meeting STJLR.03.5006. This formulation ensures proper lubrication of the turbochargers, timing components, and MHEV system. Oil should be changed every 15,000 km or annually, whichever comes first.
Comprehensive technical documentation and regulatory references
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RANGE-ROVER Official Site
Owner literature, service manuals, technical releases, and plant documentation.
EUR-Lex
EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
UK type-approval authority for automotive products.
Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
WLTP and RDE testing procedures for emissions certification.
GOV.UK: Vehicle Approval
UK compliance and certification requirements for imported and modified vehicles.
VCA Certification Portal
Type-approval guidance and documentation.
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