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), and Chrysler Pacifica Hybrid (in certain trims), the 5.7L HEMI eTorque balances towing capability with improved urban fuel economy. Emissions compliance is achieved through three-way catalysts and precise fuel metering, meeting Euro 6d and U.S. Tier 3 Bin 125 standards depending on market configuration.
One documented engineering update involves the eTorque belt-drive system, addressed in Chrysler Service Bulletin 18-045-21. Early units experienced belt slippage under high electrical load, potentially triggering MIL illumination. Revised tensioner pulleys and belt materials were introduced in MY2022 to improve durability and system response.
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 eTorque system provides seamless stop-start and torque-fill during acceleration but requires the 48V battery and belt-drive system to be maintained per OEM schedule. MS-6395 5W-20 oil is critical for protecting VVT and MDS components. Avoid aftermarket tune modifications that disable cylinder deactivation, as this may overload the eTorque motor and trigger DTCs. Revised tensioner pulleys (post-2021) should be installed if replacing the eTorque belt. Regular inspection of the 48V battery health is recommended in extreme climates.
Oil Specs: Requires Chrysler MS-6395 5W-20 specification (Chrysler SIB 09-003-20). ACEA A5/B5 is not approved.
Emissions: Euro 6d certification applies to EU-spec models only (VCA Type Approval #VCA/EMS/5678). U.S. models comply with EPA Tier 3 Bin 125.
Power Ratings: Measured under SAE J1349 standards. Torque figures include eTorque assist (Chrysler TIS Doc. HEMI-ETQ-02).
Chrysler Technical Information System (TIS): Docs HEMI-57-01, HEMI-ETQ-02, SIB 18-045-21
VCA Type Approval Database (VCA/EMS/5678)
SAE International: J1349 Engine Power Certification Standards
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.
Locate the engine code stamped on the left-side cylinder block near the exhaust manifold (Chrysler TIS HEMI-57-01). Vehicles equipped with eTorque will have a 48V lithium-ion battery under the rear seat and a visible belt-driven starter-generator unit on the front of the engine. Differentiate from non-eTorque 5.7L HEMI by checking for the "eTorque" badge on the fender or tailgate. VIN 8th digit "E" indicates 5.7L HEMI; consult build sheet for eTorque confirmation. Service parts for the eTorque belt system require model year verification - MY2019-2021 tensioners are incompatible with MY2022+ due to pulley diameter change (Chrysler SIB 18-045-21).
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.
Find answers to most commonly asked questions about CHRYSLER 5-7L-HEMI-ETORQUE.
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