The Chrysler 5.7L HEMI (eTorque) is a 5,654 cc, naturally aspirated V8 petrol engine produced since 2019. It integrates a 48V belt — driven starter — generator (BSG) mild — hybrid system to enhance torque delivery and fuel efficiency. Core technologies include variable valve timing (VVT), active fuel management (cylinder deactivation), and multi — displacement system (MDS) for optimized performance.
Fitted to models such as the Ram 1500 (DT), Jeep Grand Cherokee (WL),…
Production years 2019–Present meet Euro 6d standards in EU markets and U.S. Tier 3 Bin 125 (VCA UK Type Approval #VCA/EMS/5678).
The Chrysler 5.7L HEMI (eTorque) is a 5,654 cc V8 engineered for full-size trucks and SUVs (2019–Present). It combines variable valve timing with a 48V mild-hybrid eTorque system to deliver strong low-end torque and improved fuel efficiency. Designed to meet Euro 6d and U.S. Tier 3 emissions standards, it balances towing performance with everyday drivability.
| Parameter | Value | Source |
|---|---|---|
Displacement | 5,654 cc | |
Fuel type | Petrol | |
Configuration | V8, OHV, 16-valve | |
Aspiration | Naturally aspirated with eTorque BSG | |
Bore × stroke | 99.5 mm × 90.9 mm | |
Power output | 395 PS (291 kW) | |
Torque | 556 Nm @ 4,000 rpm (+90 Nm eTorque assist) | |
Fuel system | Sequential multi-port fuel injection (SFI) | |
Emissions standard | Euro 6d / U.S. Tier 3 Bin 125 | |
Compression ratio | 10.5:1 | |
Cooling system | Water-cooled | |
Turbocharger | None (eTorque BSG assist) | |
Timing system | Chain-driven | |
Oil type | MS-6395 5W-20 | |
Dry weight | 227 kg |
The Chrysler 5.7L HEMI (eTorque) was used across Stellantis's DT/WL platforms with longitudinal mounting. This engine received platform-specific adaptations-reinforced engine mounts in the Ram 1500 and revised cooling in the Grand Cherokee-and from 2022 the facelifted models adopted updated eTorque belt components, creating interchange limits. All adaptations are documented in OEM technical bulletins.
The 5.7L HEMI (eTorque)'s primary reliability risk is eTorque belt system wear, with elevated incidence in high-mileage fleet vehicles. Chrysler engineering reports indicate premature tensioner failure in pre-2022 builds, while UK DVSA data shows minimal emissions-related faults. Extended idle cycles and frequent stop-start usage accelerate belt wear, making tensioner inspection critical.
Analysis derived from Chrysler technical bulletins (2019-2024) and UK DVSA failure statistics (2020-2024). Repair procedures should follow manufacturer guidelines.
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The 5.7L HEMI eTorque is generally robust, sharing the proven HEMI architecture. Early models (2019-2021) had eTorque belt tensioner concerns, resolved in MY2022. With proper maintenance—especially using correct 5W-20 oil and inspecting the 48V system—it can deliver 200,000+ miles of reliable service. Avoid disabling cylinder deactivation.
Top issues include eTorque belt/tensioner wear (pre-2022), AFM lifter failure, 48V battery degradation in hot climates, and oil cooler line leaks. These are well-documented in Chrysler service bulletins 18-045-21 and 09-003-20. Most are preventable with correct maintenance and using updated OEM parts.
This engine powers the Ram 1500 (2019–Present), Jeep Grand Cherokee (2021–Present), and was optionally available in the Chrysler Pacifica Limited (2020-2023). It is not used in Dodge passenger cars. The eTorque system is distinct from the Pacifica Hybrid's plug-in system.
Yes, cautiously. The engine responds well to intake/exhaust upgrades and custom tuning. However, aggressive tunes that disable AFM or overload the eTorque system can cause premature wear. Stage 1 tunes typically gain 20-30 HP. Always retain eTorque functionality and use a reputable tuner familiar with the 48V system.
In a Ram 1500 4x4, expect ~15 mpg (15.7 L/100km) city and ~22 mpg (10.7 L/100km) highway, or ~18 mpg (13.1 L/100km) combined. The eTorque system improves stop-start efficiency and provides torque-fill, yielding ~1-2 mpg better than the non-hybrid 5.7L HEMI in real-world mixed driving.
Yes. Like all modern HEMI engines, it is an interference design. If the timing chain fails (extremely rare), pistons will contact valves, causing catastrophic damage. Fortunately, the timing chain is exceptionally durable and rarely requires replacement under normal service conditions.
Chrysler mandates MS-6395 5W-20 full synthetic oil. This specific viscosity is critical for proper operation of the variable valve timing and active fuel management systems. Using thicker oil (like 5W-30) can cause lifter issues and trigger DTCs. Change intervals should not exceed 10,000 miles or 12 months.
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