The Range Rover 14 K4C is a 4,999 cc, V8 supercharged petrol engine produced between 2013 and 2017. It features dual overhead camshafts (DOHC), variable valve timing (VVT), and direct fuel injection. In standard form it delivered 375 kW (510 PS) and 625 Nm of torque, providing strong acceleration and refined performance.
Fitted to the L405 Range Rover—including HSE, Autobiography, and Supercharged trims—the 14 K4C was engineered for effortless overtaking, high — speed…
All production years 2013–2017 meet Euro 5 standards (VCA UK Type Approval #VCA/EMS/7892).
The Range Rover 14 K4C is a 4,999 cc V8 supercharged petrol engine engineered for full-size luxury SUVs (2013–2017). It combines DOHC architecture with variable valve timing and twin-rotor supercharging to deliver high torque from low rpm and smooth power delivery. Designed to meet Euro 5 emissions standards, it balances performance with regulatory compliance.
| Parameter | Value | Source |
|---|---|---|
Displacement | 4,999 cc | |
Fuel type | Petrol (ULP 95 RON min) | |
Configuration | V8, DOHC, 32‑valve | |
Aspiration | Supercharged (twin‑rotor Roots-type) | |
Bore × stroke | 95.5 mm × 87.0 mm | |
Power output | 375 kW (510 PS) @ 6,000–6,500 rpm | |
Torque | 625 Nm @ 2,500–5,500 rpm | |
Fuel system | Direct injection (Bosch HDEV5) | |
Emissions standard | Euro 5 | |
Compression ratio | 10.5:1 | |
Cooling system | Water‑cooled | |
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 | 225 kg |
The Range Rover 14 K4C was used exclusively in Land Rover's L405 platform with longitudinal mounting and no external licensing. This engine received platform-specific adaptations—reinforced mounts and revised cooling ducts in the L405—and from 2016 the facelifted L405 retained the same engine but with updated supercharger coupler components, creating partial interchange limits. All adaptations are documented in OEM technical bulletins.
The 14 K4C's primary reliability risk is supercharger coupler wear on pre-2016 builds, with elevated incidence in hot climates and high-load driving. Land Rover internal quality data from 2016 indicated a measurable rate of supercharger-related repairs before 100,000 km in early units, while UK DVSA records show no significant emissions-related MOT failures due to robust aftertreatment design. Extended high-rpm operation increases coupler stress, making oil quality and warm-up procedure critical.
Analysis derived from Land Rover technical bulletins (2014–2017) and UK DVSA failure statistics (2015–2023). 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 14 K4C offers exhilarating supercharged V8 performance but early models (2013–2015) have supercharger coupler concerns. Post-2016 revisions improved durability significantly. With proper maintenance—especially oil changes using correct 5W-30 spec—these engines can exceed 200,000 km reliably.
Top issues include supercharger coupler wear (pre-2016), direct injector coking, front cover oil leaks, and plastic intercooler end-tank cracks. All are documented in Land Rover service bulletins, particularly SIB 07 15 16 for supercharger concerns.
This 5.0L supercharged V8 powered the L405 Range Rover (2013–2017) in HSE Supercharged, Autobiography, and Supercharged trims. It is the high-output supercharged variant—distinct from the naturally aspirated 12 H999AA used in earlier models.
Yes. The 14 K4C responds well to ECU remaps (+30–50 kW typical) and pulley upgrades. Stock internals handle up to ~600 PS reliably. Most tuners recommend upgraded intercoolers and fuel system support for stage 2+ modifications.
Real-world consumption is ~16.5 L/100km (city) and ~11.2 L/100km (highway), or about 17 mpg UK combined. Expect 14–20 mpg (UK) depending on driving style. Fuel demand increases significantly under load or in urban stop-start conditions.
Yes. The 14 K4C is an interference engine. If the timing chain jumps or breaks, pistons can collide with open valves, causing severe internal damage. Prompt attention to any timing rattle is essential to prevent catastrophic failure.
Land Rover specifies SAE 5W-30 synthetic oil meeting STJLR.03.5027 (or equivalent ACEA C3 with OEM approval). Always use high-quality oil and change every 15,000 km or annually to protect the supercharger and timing system.
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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