The Land Rover 37 D is a 2,993 cc, inline-six turbocharged diesel engine produced between 2021 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 standard tune it delivers 250 kW (340 PS) and 700 Nm of torque, positioning it as the highest-output diesel option across Land Rover’s full-size luxury SUVs.
Fitted to models including the Range Rover (L460) and Range Rover Sport (L461), the 37 D was engineered for effortless highway cruising, confident towing, and off-road torque delivery. 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 across all production years.
One documented reliability concern is high-pressure fuel pump (HPFP) rail pressure instability, highlighted in Land Rover Technical Service Bulletin P310-0147. This issue arises from prolonged operation on low-quality diesel or extended service intervals, leading to fluctuating injection pressure and misfire events. From 2022, revised HPFP calibration and updated injector nozzle coatings were implemented to improve durability.
All production years (2021–2023) comply with Euro 6d-Final emissions standards (VCA UK Type Approval #VCA/EMS/5683).
The Land Rover 37 D is a 2,993 cc inline-six turbocharged diesel engine developed for flagship luxury SUVs (2021–2023). It integrates twin-scroll turbocharging with Bosch CRS 4-25 common-rail injection to deliver strong low-end torque and smooth power delivery. Designed to meet Euro 6d-Final regulations, it balances 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 | 250 kW (340 PS) @ 4,000 rpm | |
| Torque | 700 Nm @ 1,500–3,000 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 | 202 kg |
The twin-scroll turbo provides strong low-RPM torque ideal for towing and off-road use but requires 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-2022 models feature updated HPFP calibration; pre-2022 units should have software updated per SIB P310-0147.
Oil Specs: Requires JLR STJLR.51.5004 (5W-30) specification (Land Rover SIB P312-0056). Supersedes ACEA C2 standards.
Emissions: All 37 D engines (2021–2023) comply with Euro 6d-Final standards (VCA Type Approval #VCA/EMS/5683).
Power Ratings: Measured under SAE J1349 standards. Full output requires EU4+ diesel quality (JLR PTS-2022).
Land Rover Technical Data System (TDS): Docs ING6D-37, SIB P310-0147, P312-0056
VCA Type Approval Database (VCA/EMS/5683)
SAE International: J1349 Engine Power Certification Standards
The Land Rover 37 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 2022 the L460 adopted the SCR-enhanced 37 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-37). The 8th VIN digit indicates engine type ('D' for Ingenium 3.0L diesel). Pre-2022 models have silver intake manifolds with black plastic covers; post-2022 units use gloss black covers. Critical differentiation from 30DDTX: 37 D produces higher torque (700 Nm vs 570 Nm) and uses revised ECU calibration. Service parts require production date verification—HPFP assemblies for pre-2022 models are incompatible with post-2022 revisions due to internal pump and software updates (Land Rover SIB P310-0147).
The 37 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 2022 noted a significant share of pre-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 (2021-2023) and UK DVSA failure statistics (2022-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about LAND-ROVER 37D.
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DVLA: Engine Changes & MoT
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Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
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