Jeep Wrangler eTorque System – What It Is, Model Years, Identification & How to Protect It

The Jeep Wrangler has long been an off-road legend, blending rugged capability with evolving technology. One of the more recent innovations introduced to the JL Wrangler is eTorque, a mild-hybrid system designed to improve efficiency, torque delivery, and start-stop functionality.

If you own a 2018+ Jeep Wrangler JL, it is important to understand how eTorque works, which models have it, how to identify it, and how to protect it—especially if you're taking your rig off-road.

What is the Jeep Wrangler eTorque System?

The eTorque system is a mild-hybrid setup that replaces the traditional alternator with a belt-driven motor generator unit (MGU). Unlike a full hybrid or EV, eTorque does not power the wheels directly. Instead, it enhances engine performance by:

• Adding up to 90 lb-ft of torque in the 2.0L turbo and 130 lb-ft in the 3.6L V6.
• Smoothing start-stop functionality by eliminating harsh engine restarts.
• Boosting low-end torque, which helps when rock crawling or pulling out of slow-speed obstacles.
• Improving fuel efficiency by reducing engine strain during acceleration.

A 48-volt battery pack, typically located under the rear seat, stores energy to assist the system when needed.

Which Jeep Wrangler Model Years Feature eTorque?

The eTorque system debuted with the JL generation in 2018, but its availability changed over the years. Here's a breakdown of the model years and configurations where it was available:

Key Notes on eTorque Availability:

• In 2018-2019, eTorque was only available with the 2.0L Turbo I4 as an optional upgrade. The 3.6L V6 did not have eTorque at this time.
• In 2020, Jeep introduced eTorque for the 3.6L V6, but only on the Wrangler Unlimited Sahara with the 8-speed automatic transmission. Other trims stuck with the standard alternator-based 3.6L V6.
• From 2021-2023, Jeep made eTorque standard on most automatic Wranglers with the 3.6L V6, phasing out the non-eTorque V6 for automatic models. Manual transmission models kept the non-eTorque V6.
• In 2024, eTorque was eliminated from the Wrangler lineup.

Production constraints, such as supply chain shortages in 2020-2021, led to some automatic models shipping without eTorque, even if originally intended to have it. Always check your specific Wrangler's build sheet for confirmation.

How to Identify If Your Jeep Wrangler Has eTorque

If you're unsure whether your JL Wrangler has an eTorque system, here’s how you can find out:

1. Check Under the Hood

• Instead of a traditional alternator, an eTorque-equipped Jeep has a belt-driven motor-generator unit (MGU).
• On the 3.6L V6, the MGU is mounted near the front of the engine.
• On the 2.0L Turbo I4, it is similarly positioned but more compact.
• Look for extra wiring and a small cooling system tied to the 48-volt battery—these are indicators of eTorque.

2. Locate the 48-Volt Battery Pack

• The eTorque system's battery is mounted under the rear seat (driver side) and positioned opposite the fuel tank.
• If you do not see a secondary battery in this location, your Jeep likely does not have eTorque.

3. Check the Window Sticker or Build Sheet

• If you still have the original window sticker, look under engine options for "eTorque Mild Hybrid System".
• If your Wrangler is used, request the build sheet from Jeep’s website or a dealership.

4. Observe the Start-Stop System Behavior

• Start your Jeep and bring it to a stop.
• eTorque models have a much smoother and quicker stop-start system compared to older systems. The engine restarts almost instantly, without the typical lag of traditional start-stop setups.

5. Run a VIN Check

• Enter your VIN on Jeep’s online build sheet portal or ask a dealership to confirm if your Wrangler has eTorque.

6. Take It for a Test Drive

• If you notice a subtle but noticeable torque boost when accelerating from a stop, especially in stop-and-go traffic or off-road crawling, your Wrangler likely has eTorque.

Protecting Your Jeep Wrangler eTorque System with Metalcloak Skid Plates

The eTorque system introduces new components under the Jeep’s body, including the belt-driven motor-generator unit (MGU), wiring, and 48-volt battery. This adds vulnerabilities when off-roading, particularly in rocky terrain or deep water crossings.

Why Use Metalcloak's UnderCloak Skid System?

Metalcloak's UnderCloak Skid System provides full underbody protection for your Wrangler, shielding critical eTorque components from damage.

Key Features

• Heavy-Duty Steel Construction – Thick 3/16” to 1/4” CNC-formed steel provides extreme durability.
• Boat-Sided Design – Angled edges help slide over rocks rather than catching on them.
• Gold Zinc Chromate Coating – Prevents rust and corrosion over time.
• Flush-Mount Hardware – Keeps fasteners protected from trail damage.
• Modular Coverage – Designed for JL 3.6L, 2.0L, and 4xe models, ensuring proper fitment.

What Does Metalcloak’s System Protect?

For eTorque-equipped Wranglers, Metalcloak provides tailored skid plate configurations that protect:

• Oil Pan & Engine Skid – Shields the motor-generator unit and engine underbelly.
• Transmission & Transfer Case Skid – Covers the drivetrain and prevents damage to components connected to eTorque wiring.
• Gas Tank Skid – Protects the fuel tank while complementing eTorque battery coverage.
• Battery Skid (eTorque-Specific) – Shields the 48-volt battery pack and coolant lines.

Installation & Real-World Performance

Installing Metalcloak's UnderCloak system takes a few hours with basic hand tools. It bolts onto existing frame points for a no-drill install.

On technical trails like Arizona’s Crown King and Utah’s Moab, factory skid plates often fail. Metalcloak's system allows Jeeps to slide over boulders without snagging sensitive eTorque components, preserving torque assist and stop-start functionality.

Final Thoughts

For daily drivers and hardcore off-roaders, the eTorque system offers smoother power delivery, improved fuel economy, and better low-speed torque. However, it also introduces new vulnerabilities that need to be protected on the trail.

Metalcloak’s UnderCloak Integrated Skid System ensures that your Wrangler's eTorque components stay safe, functional, and ready for adventure.

For more details, visit Metalcloak.com to explore skid plate options for your Jeep.