The Range Rover 14 K4D is a 2,995 cc, supercharged V6 petrol engine produced between 2014 and 2017. It features a Roots — type supercharger, direct fuel injection, and DOHC valvetrain with variable valve timing. In standard form it delivers 250 kW (340 PS) and 450 Nm of torque, providing brisk acceleration with smooth power delivery.
Fitted to the L405 Range Rover and L494 Range Rover Sport, the 14 K4D was engineered for responsive performance and refined operation in full — s…
All production years 2014–2017 meet Euro 6 emissions standards (VCA UK Type Approval #VCA/EMS/4321).
The Range Rover 14 K4D is a 2,995 cc V6 supercharged petrol engine engineered for full-size luxury SUVs (2014–2017). It combines direct injection with a Roots-type supercharger to deliver linear power and immediate throttle response. Designed to meet Euro 6 standards, it balances performance with regulatory compliance and everyday drivability.
| Parameter | Value | Source |
|---|---|---|
Displacement | 2,995 cc | |
Fuel type | Petrol (ULP 95 RON min) | |
Configuration | V6, DOHC, 24‑valve | |
Aspiration | Supercharged | |
Bore × stroke | 84.5 mm × 89.0 mm | |
Power output | 250 kW (340 PS) @ 6,500 rpm | |
Torque | 450 Nm @ 3,500–5,000 rpm | |
Fuel system | Bosch HDEV5 direct injection (up to 200 bar) | |
Emissions standard | Euro 6 | |
Compression ratio | 10.5:1 | |
Cooling system | Water‑cooled with dual-circuit layout | |
Supercharger | Roots-type (Eaton TVS R1740) | |
Timing system | Chain-driven (front-mounted) | |
Oil type | Jaguar Land Rover STJLR.03.5004 (SAE 5W‑20) | |
Dry weight | 198 kg |
The Range Rover 14 K4D was used across Land Rover's L405 and L494 platforms with longitudinal mounting and shared with the Range Rover Sport (L494). This engine received platform-specific cooling and intake ducting adaptations—enhanced radiator capacity in the L405 and revised airbox routing in the L494—and from mid-2016 the supercharger coupler was updated to address noise concerns, creating minor service part distinctions. All adaptations are documented in OEM technical bulletins.
The 14 K4D's primary reliability risk is supercharger coupler wear in early builds, with elevated incidence in high-load or hot-climate usage. Land Rover internal data (2016) indicated a measurable increase in coupler-related noise complaints in pre-mid-2016 engines, while UK DVSA records show no significant emissions-related MOT failures linked to this engine. Frequent towing or aggressive driving accelerates coupler degradation, making proactive inspection 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 K4D is generally robust when maintained properly. Its main vulnerability is early supercharger coupler wear, not mechanical failure. Using correct 5W-20 oil, 95 RON fuel, and avoiding excessive heat/load greatly improves longevity. Post-mid-2016 models feature the updated coupler and show excellent reliability.
The most frequent issues are supercharger coupler wear (pre-2016), high-pressure fuel pump failure due to poor oil or fuel, coolant leaks from plastic thermostat housing, and rear main seal oil leaks. These are documented in Land Rover service bulletins LTB00315 and TIS updates.
This engine powers the 3.0 SC V6 (340 PS) variant of the L405 Range Rover and L494 Range Rover Sport from 2014 to 2017. It is not used in Defender, Discovery, or later Ingenium-based models. All applications are Euro 6-compliant petrol models.
Yes. ECU remaps can safely increase output to ~280–290 kW (380–395 PS) on stock hardware. The supercharged V6 architecture supports moderate tuning. However, aggressive tuning without upgraded intercooling or fueling may accelerate supercharger or HPFP wear. Always use a reputable tuner familiar with JLR systems.
Official WLTP combined is ~11.2 L/100km (25 mpg UK), but real-world mixed driving typically yields 12–14 L/100km (20–23 mpg UK). Highway cruising can achieve ~9.5 L/100km (30 mpg UK), while city driving may exceed 15 L/100km (19 mpg UK), especially with frequent boost use.
Yes. Like all modern DOHC engines, the 14 K4D is an interference design. If the timing chain fails (extremely rare in this application), piston-to-valve contact can cause catastrophic damage. However, the chain is front-mounted and highly durable with proper oil maintenance.
It requires Jaguar Land Rover STJLR.03.5004 specification oil, typically SAE 5W‑20 synthetic. This is critical for HPFP lubrication, supercharger protection, and emission system longevity. Do not substitute with generic ACEA oils—only JLR-approved formulations are validated.
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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