The Range Rover 25 K4F is a 4,999 cc, V8 supercharged petrol engine produced between 2022 and 2025. It features dual overhead camshafts (DOHC), variable valve timing (VVT), and direct fuel injection with enhanced thermal management. In standard form it delivered 441 kW (600 PS) and 750 Nm of torque, providing track-focused acceleration and refined high-speed dynamics.
Fitted exclusively to the L460 Range Rover SVAutobiography and SVAutobiography Dynamic SE trims, the 25 K4F was engineered as the pinnacle of Land Rover’s performance SUV lineup. Emissions compliance was achieved through precise combustion control, dual knock sensors, and a dual exhaust aftertreatment system with gasoline particulate filters (GPF), meeting Euro 6d standards across all production years.
One documented concern is premature degradation of the supercharger drive belt tensioner pulley bearing, which can cause belt slippage and loss of boost. This issue is referenced in Land Rover Service Bulletin SIB 03 23 24. The root cause is linked to insufficient lubrication in high-heat environments during repeated high-load cycles. From late 2023, revised pulleys with sealed ceramic bearings were introduced.
All production years 2022–2025 meet Euro 6d standards (VCA UK Type Approval #VCA/EMS/11203).
The Range Rover 25 K4F is a 4,999 cc V8 supercharged petrol engine engineered for ultra-high-performance luxury SUVs (2022–2025). It combines DOHC architecture with twin-rotor supercharging and advanced thermal management to deliver immediate torque and sustained high-rpm power. Designed to meet Euro 6d emissions standards, it integrates dual GPFs and active engine cooling strategies for consistent performance under load.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 4,999 cc | |
| Fuel type | Petrol (ULP 98 RON min) | |
| Configuration | V8, DOHC, 32‑valve | |
| Aspiration | Supercharged (twin‑rotor Roots-type) | |
| Bore × stroke | 95.5 mm × 87.0 mm | |
| Power output | 441 kW (600 PS) @ 6,200–6,500 rpm | |
| Torque | 750 Nm @ 2,500–5,000 rpm | |
| Fuel system | Direct injection (Bosch HDEV6) | |
| Emissions standard | Euro 6d | |
| Compression ratio | 9.8:1 | |
| Cooling system | Water‑cooled with auxiliary oil cooler | |
| Turbocharger | None (Roots-type supercharger by Eaton) | |
| Timing system | Chain (dual‑stage tensioners) | |
| Oil type | Land Rover STJLR.03.5027 (SAE 5W‑30) | |
| Dry weight | 232 kg |
The 600 PS supercharged V8 delivers exceptional performance but requires strict adherence to 15,000 km oil change intervals using Land Rover–approved 5W‑30 to protect the supercharger drive system and timing chain. Pre-late-2023 engines are susceptible to tensioner pulley bearing wear under sustained high-load conditions; revised ceramic-bearing pulleys per SIB 03 23 24 should be installed during any belt service. Direct injection demands premium fuel (98 RON minimum) to prevent GPF clogging and injector coking. The engine is interference-design—timing failure risks catastrophic valve/piston contact.
Oil Specs: Requires Land Rover STJLR.03.5027 (5W‑30) specification (Land Rover SIB 03 23 24). Equivalent to ACEA C5 with OEM-specific additives.
Emissions: Euro 6d certification applies to all 2022–2025 models (VCA Type Approval #VCA/EMS/11203). Includes dual GPF compliance and real-driving emissions (RDE) validation.
Power Ratings: Measured under ISO 1585 standards. Full 600 PS output requires 98 RON fuel and functional intercooler system (Land Rover TIS Doc. V8‑4999‑SC3).
Land Rover Technical Information System (TIS): Docs V8‑4999‑SC3, SIB 03 23 24, SIB 06 11 22
VCA Type Approval Database (VCA/EMS/11203)
ISO 1585: Road vehicles — Engine test code
The Range Rover 25 K4F was used exclusively in Land Rover's high-performance L460 platform with longitudinal mounting and no external licensing. This engine received platform-specific adaptations—carbon-fibre intake, performance-tuned active mounts, and enhanced cooling ducts in the SVAutobiography Dynamic SE—and from late 2023 the updated L460 retained the same engine but with revised supercharger pulley bearings, creating partial interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the left-side engine block near the cylinder head (Land Rover TIS V8‑4999‑SC3). The 7th VIN digit indicates engine family ('K' for 25 K4F). Pre-late-2023 models use silver supercharger housings with standard steel pulley bearings; post-late-2023 units feature black housings and ceramic-bearing pulleys. Critical differentiation from 18 K4F: 25 K4F has unique carbon-fibre intake plenum, larger intercooler, and SVA-specific red valve cover. Service parts for supercharger drive systems require production date verification—pulley kits for engines before 11/2023 are incompatible with later units due to bearing redesign (Land Rover SIB 03 23 24).
The 25 K4F's primary reliability risk is supercharger drive belt tensioner pulley bearing failure on pre-late-2023 builds, with elevated incidence in track-day or sustained high-load driving. Land Rover internal quality data from 2024 indicated a measurable rate of pulley-related belt slippage before 50,000 km in early units, while UK DVSA records show minimal emissions-related MOT failures due to robust dual-GPF design. Repeated high-rpm operation increases bearing thermal stress, making cooldown procedures and oil quality 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 25-K4F.
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