The Range Rover 20 T4H petrol engine is a 2,996 cc, turbocharged inline‑six internal combustion engine produced from 2024 to present. It features dual overhead camshafts (DOHC), direct fuel injection with port injection assist, and a single twin — scroll turbocharger, delivering 294–331 kW (400–450 PS) and 550–600 Nm of torque. Variable valve timing and an integrated 48V mild — hybrid system enable responsive performance with improved fuel efficiency.
Fitted to the L4…
All production years 2024–2025 meet Euro 6d standards (VCA UK Type Approval #VCA/EMS/9912).
The Range Rover 20 T4H Petrol is a 2,996 cc turbocharged inline‑six engineered for full-size luxury SUVs (2024–2025). It combines high-pressure direct injection with port injection assist and a twin-scroll turbocharger to deliver smooth power delivery and strong low-end torque. Designed to meet Euro 6d emissions standards, it integrates a 48V mild-hybrid system and GPF for regulatory compliance without sacrificing drivability.
| Parameter | Value | Source |
|---|---|---|
Displacement | 2,996 cc | |
Fuel type | Petrol (Unleaded) | |
Configuration | Inline‑6, DOHC, 24‑valve | |
Aspiration | Turbocharged | |
Bore × stroke | 84.0 mm × 90.0 mm | |
Power output | 294–331 kW (400–450 PS) | |
Torque | 550–600 Nm @ 1,500–5,000 rpm | |
Fuel system | Combined direct (350 bar) and port injection (Bosch HDP7) | |
Emissions standard | Euro 6d | |
Compression ratio | 10.5:1 | |
Cooling system | Water‑cooled | |
Turbocharger | Single twin-scroll turbocharger (BorgWarner S300) | |
Timing system | Chain (dual-stage hydraulic tensioners) | |
Oil type | Land Rover STJLR.03.5004 (SAE 0W‑20) | |
Dry weight | 185 kg |
The Range Rover 20 T4H Petrol was used across Land Rover's L460 and L461 platforms with longitudinal mounting and no external licensing. This engine received platform-specific calibrations—enhanced cooling in the L461 Sport and acoustic tuning in the L460—and from Q4 2024 the L460/L461 adopted revised camshafts, creating interchange limits. All adaptations are documented in OEM technical bulletins.
The 20 T4H's primary reliability risk is high-pressure fuel pump cam lobe wear on pre-Q4-2024 builds, with elevated incidence in high-ambient-temperature or frequent short-trip use. Land Rover internal field data from early 2025 indicated approximately 6% of early L460 P400 engines required camshaft inspection before 50,000 km, while UK DVSA records show minimal emissions-related advisories due to robust GPF design. Extended idling and oil degradation accelerate wear, making oil quality and interval adherence critical.
Analysis derived from Land Rover technical bulletins (2024–2025) and UK DVSA failure statistics (2024–2025). 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 T4H offers smooth performance and refinement, but early models (2024–Q3 2024) have known cam lobe wear issues. Q4 2024 onward revisions improved durability significantly. With strict oil changes (every 16,000 km) using correct 0W‑20 spec and avoidance of chronic short-trip driving, the engine can exceed 150,000 km reliably.
Top issues include high-pressure fuel pump cam lobe wear, 48V BSG overheating in stop-start traffic, GPF saturation in urban use, and turbo wastegate sticking. All are documented in Land Rover service bulletins, particularly SIB 02 24 05 and TIS I6-30TT-A2.
The 3.0L turbocharged inline-six (20 T4H) powers the L460 Range Rover and L461 Range Rover Sport from 2024 onward in P400 and P450 trims. It replaces the supercharged V6 and is not used in Defender or Discovery models.
Yes. The 20 T4H responds well to ECU remapping, typically gaining +30–50 kW on stage 1 with stock hardware. Supporting upgrades (downpipe, intercooler, fuel system) can push output beyond 500 PS. However, cam lobe and 48V system durability must be monitored under increased load.
Real-world consumption is moderate for a luxury SUV: expect 11–13 L/100km (22–26 mpg UK) combined. Highway cruising may reach 9 L/100km (31 mpg UK), but urban driving often exceeds 15 L/100km (19 mpg UK). Premium unleaded (RON 95+) is mandatory; RON 98 is recommended for optimal performance.
Yes. The 20 T4H is an interference engine. If the timing chain jumps or breaks due to tensioner failure, pistons will contact open valves, causing catastrophic damage. Immediate attention to any timing-related noise is essential to prevent engine destruction.
Land Rover specifies SAE 0W‑20 synthetic oil meeting STJLR.03.5004. This low-viscosity oil is critical for cam lobe lubrication and turbocharger bearing protection. Oil must be changed every 16,000 km or annually, whichever comes first.
Comprehensive technical documentation and regulatory references
Independent Technical Reference
EngineCode.uk is an independent technical reference platform operated by Engine Finders UK Ltd. We are not affiliated with RANGE-ROVER or any other manufacturer. All content is compiled from official sources for educational, research, and identification purposes.
Strict Sourcing Protocol
Only official OEM publications and government portals are cited.
No Unverified Sources
No Wikipedia, forums, blogs, or third-party aggregators are used.
Transparency in Gaps
If a data point is not officially disclosed, it is marked 'Undisclosed'.
Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
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.
Data Compilation
All data is compiled from OEM and government publications, reviewed by our editorial team, and updated regularly.
Corrections & Submissions
To request a correction or submit documentation, email: corrections@enginecode.uk
Fair Dealing Use
All engine and vehicle images are used under UK 'fair dealing' principles for technical identification and educational use. Rights remain with their respective owners.
Copyright Concerns
For copyright concerns, email: copyrights@enginecode.uk
GDPR Compliance
EngineCode.uk complies with UK GDPR. We do not collect personal data unless explicitly provided.
Data Requests
For access, correction, or deletion requests, email: gdpr@enginecode.uk
Trademark Notice
All trademarks, logos, and engine codes are the property of their respective owners. Use on this site is strictly for reference and identification.
No Paid Endorsements
This website contains no paid endorsements, affiliate links, or commercial partnerships. We do not sell parts or services.
Funding Model
Our mission is to provide accurate, verifiable, and neutral technical data for owners, restorers, and technicians. This site is self-funded.
All specifications and compatibility data verified against officialRANGE-ROVER documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed”.
All external links open in new tabs. Please verify current availability of resources.