Exclusive Content
Original Shows, Motorsports and Live Events
Due to the EU’s Global Data Protection Regulation, our website is currently unavailable to visitors from most European countries. We apologize for this inconvenience and encourage you to visit www.motortrend.com for the latest on new cars, car reviews and news, concept cars and auto show coverage, awards and much more.MOTORTREND.COM
  • |
  • |
  • Jeep Confirms 3.0L EcoDiesel Gladiator for 2021

Jeep Confirms 3.0L EcoDiesel Gladiator for 2021

Pickup joins Wrangler as a diesel-powered alternative in Jeep’s lineup

Jul 10, 2020
Related Articles
Mopar Accessorizes the 2020 Gladiator with Jeep Performance Parts
First Drive 2020 Jeep Wrangler EcoDiesel
It's Official: Meet the 2019 Jeep Scrambler
Jeep's Gladiator (did you know it unofficially was a "Scrambler" before it became Gladiator?) certainly is the "it truck" in the midsize segment. Since arriving in U.S. showrooms in 2019, the pickup (JT platform), derived from the company's ever-popular Wrangler, came on like gangbusters and continues to thrive among hardcore Jeep fans, as well as aftermarket parts manufacturers (including FCA's Mopar) who are producing exciting new drivetrain and suspension parts and bits for personalization and improved appearance.
Similar to 2020 Wrangler (JL), a big concern among enthusiasts interested in Gladiator was the availability of a diesel engine. "Before we introduced Gladiator, one of the most common questions consumers asked us was, 'Will it be offered with a diesel engine?'" says Jim Morrison, head of Jeep brand—North America. "I'm pleased to answer with a resounding yes. Gladiator's combination of unmatched off-road capability and fun-to-drive on-road performance, along with best-ever Gladiator fuel economy and incredible driving range, underwrite the fact that our customers knew exactly what they were asking for."
With 442 lb-ft of torque and the best anticipated driving range (read fuel economy) for the FCA Cento-built 3.0L EcoDiesel V-6 engine, Jeep officials are calling 2021 Gladiator "the most capable midsize truck ever." While such lofty claims by truck manufacturers are common whenever all-new or updated rigs roll out, let's take a look at some of the details that could make this prophecy true:
Photo 2/5   |   02 Jeep Gladiator Ecodiesel 2021
Starting under the hood, 2021's Gladiator will be available with the aforementioned EcoDiesel, rated at 260 hp and 442 lb-ft of torque. The engine now features:
  • Lighter compacted graphite-iron block and bedplate
  • 0:1 compression (from 16.5:1)
  • Forged steel crankshaft and connecting rods
  • Redesigned lightweight oil-cooled aluminum pistons with thinner rings and low-friction, diamond-like carbon-coated wrist pins (offset 0.3mm from centerline) and compression rings
  • Heat-treated aluminum cylinder heads with redesigned intake ports
  • Chain-driven, dual overhead camshafts (DOHC) with four valves per cylinder and a 60-degree angle between the cylinder banks, with roller-finger followers
  • New-generation water-cooled, variable-geometry turbocharger with low-friction bearings
  • Charge air cooler located at the base of the grille, in front of the radiator
  • Combustion-chamber-matching, high-pressure (29,000 psi/2,000 bar) direct-injection, fuel-injector nozzles
  • (Updated) dual-loop (low- and high-pressure) EGR system. The added low-pressure circulation system draws gases after the diesel particulate filter, minimizing turbo energy losses
  • New 5.1-gallon diesel exhaust fluid (DEF) tank placed immediately behind the fuel tank with refill location next to the diesel fuel filler
  • Engine stop/start (ESS) technology (standard on Gladiator Sport, Overland, and Rubicon models)
Driveline and Suspension
Photo 3/5   |   05 Jeep Gladiator Ecodiesel 2021
To handle greater torque loads, there's a newly added Torqueflite 8HP75 eight-speed automatic transmission, calibrated for low-rpm shifts and on- and off-road rigors. Transmission function is highlighted by more than 40 individual shift maps to optimize fuel economy, performance, and four-wheel-drive capability. Additionally, the following axles and transfer cases can be had with various Gladiator models equipped with the 3.0L EcoDiesel V-6 engine:
  • Third-generation Dana 44 front/rear heavy-duty axles (Sport, Overland, and Rubicon)
  • 73 axle ratio (all models)
  • Rock-Trac two-speed transfer case with a 4.0:1 low-range gear ratio (Rubicon)
  • Command-Trac part-time two-speed transfer case with a 2.72:1 low-range gear ratio (Sport and Overland)
While the 2021 Jeep Gladiator EcoDiesel is slated to go on sale in the third quarter of 2020, order banks are open for enthusiasts to lock one in right now.