The Land Rover 42 D is a 2,993 cc, inline-six turbocharged diesel engine produced between 2022 and 2023. Part of Jaguar Land Rover's Ingenium engine family, it features high-pressure common-rail injection, a twin-scroll turbocharger, and variable valve timing. In its highest-output tune it delivers 294 kW (400 PS) and 770 Nm of torque, making it the most powerful diesel engine ever offered in a Land Rover production vehicle.
Fitted exclusively to the Range Rover (L460) and Range Rover Sport (L461), the 42 D was engineered for effortless high-speed cruising, maximum towing capacity, and off-road authority. Emissions compliance is achieved through a cooled exhaust gas recirculation (EGR) system, diesel particulate filter (DPF), and selective catalytic reduction (SCR) with AdBlue injection, enabling adherence to Euro 6d-Final standards.
One documented reliability concern is high-pressure fuel system rail pressure fluctuation, highlighted in Land Rover Technical Service Bulletin P310-0148. This issue arises from prolonged operation on low-quality diesel or extended service intervals, leading to inconsistent injection and misfire events. From mid-2022, revised high-pressure fuel pump (HPFP) calibration and updated injector nozzle coatings were implemented to improve durability and combustion stability.
All production years (2022–2023) comply with Euro 6d-Final emissions standards (VCA UK Type Approval #VCA/EMS/5684).
The Land Rover 42 D is a 2,993 cc inline-six turbocharged diesel engine developed for flagship luxury SUVs (2022–2023). It integrates twin-scroll turbocharging with Bosch CRS 4-25 common-rail injection to deliver exceptional low-end torque and smooth power delivery. Designed to meet Euro 6d-Final regulations, it balances extreme performance with emissions control through DPF and SCR systems.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,993 cc | |
| Fuel type | Diesel | |
| Configuration | Inline-6, DOHC, 24-valve | |
| Aspiration | Turbocharged (twin-scroll) | |
| Bore × stroke | 84.0 mm × 90.0 mm | |
| Power output | 294 kW (400 PS) @ 4,000 rpm | |
| Torque | 770 Nm @ 1,500–2,500 rpm | |
| Fuel system | Bosch CRS 4-25 common-rail (up to 2,500 bar) | |
| Emissions standard | Euro 6d-Final | |
| Compression ratio | 15.5:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | Honeywell twin-scroll turbo with integrated EGR routing | |
| Timing system | Dual-chain (primary and secondary) | |
| Oil type | Jaguar Land Rover STJLR.51.5004 (SAE 5W-30) | |
| Dry weight | 205 kg |
The twin-scroll turbo provides extreme low-RPM torque ideal for towing and off-road use but requires strict adherence to 15,000 km oil service intervals to prevent HPFP degradation and turbo bearing wear. JLR STJLR.51.5004 (5W-30) oil is essential due to its low-ash formulation protecting the DPF and SCR system. Short-trip driving inhibits passive DPF regeneration, necessitating periodic highway runs. The Bosch CRS 4-25 fuel system demands ultra-low sulfur diesel (ULSD) meeting EN 590 standards to prevent injector wear. Post-mid-2022 models feature updated HPFP calibration; pre-2022 units should have software updated per SIB P310-0148.
Oil Specs: Requires JLR STJLR.51.5004 (5W-30) specification (Land Rover SIB P312-0056). Supersedes ACEA C2 standards.
Emissions: All 42 D engines (2022–2023) comply with Euro 6d-Final standards (VCA Type Approval #VCA/EMS/5684).
Power Ratings: Measured under SAE J1349 standards. Full output requires EU4+ diesel quality (JLR PTS-2023).
Land Rover Technical Data System (TDS): Docs ING6D-42, SIB P310-0148, P312-0056
VCA Type Approval Database (VCA/EMS/5684)
SAE International: J1349 Engine Power Certification Standards
The Land Rover 42 D was used exclusively in Land Rover's flagship Range Rover and Range Rover Sport platforms with longitudinal mounting. This engine received platform-specific tuning-optimized torque delivery in the Range Rover L460 and revised cooling management in the Sport L461-and from mid-2022 the L460 adopted the SCR-enhanced 42 D variant with updated ECU mapping, creating interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped vertically on the left-side cylinder block near the exhaust manifold (Land Rover TDS ING6D-42). The 8th VIN digit indicates engine type ('D' for Ingenium 3.0L diesel). Pre-mid-2022 models have silver intake manifolds with black plastic covers; post-mid-2022 units use gloss black covers. Critical differentiation from 37 D: 42 D produces higher torque (770 Nm vs 700 Nm) and uses revised ECU calibration. Service parts require production date verification—HPFP assemblies for pre-mid-2022 models are incompatible with post-mid-2022 revisions due to internal pump and software updates (Land Rover SIB P310-0148).
The 42 D's primary reliability risk is high-pressure fuel pump (HPFP) instability, with elevated incidence in mixed driving cycles. Internal Land Rover quality reports from 2023 noted a significant share of pre-mid-2022 engines requiring HPFP replacement before 100,000 km, while UK DVSA records link SCR system faults to infrequent AdBlue top-ups in city-driven vehicles. Stop-start operation and load variation increase thermal cycling, making fuel quality and maintenance adherence critical.
Analysis derived from Land Rover technical bulletins (2022-2023) and UK DVSA failure statistics (2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about LAND-ROVER 42D.
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DVLA: Engine Changes & MoT
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Regulation (EC) No 715/2007
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Commission Regulation (EU) 2017/1151
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