Home News 2021 Jeep Gladiator gets EcoDiesel and a few other minor tweaks

2021 Jeep Gladiator gets EcoDiesel and a few other minor tweaks

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2021 Jeep Gladiator Mojave (Image courtesy of Fiat Chrysler Automobiles)

The Jeep Gladiator was all-new for the 2020 model year, so don’t expect any huge and sweeping changes to Jeep’s only pickup truck for 2021. There are a few additions of note, however, and they are as follows:

Diesel engine across lineup

Jeep added the 3.0-liter V-6 EcoDiesel to the Wrangler for 2020, so you knew it was only a matter of time before it made its way to Gladiator as well.

This engine will deliver 260 horsepower and 442 pound-feet of torque. The only transmission available will be the TorqueFlite 8HP75 8-speed automatic. Jeep says this is to handle the greater torque loads.

2020 Jeep 3.0-liter V-6 EcoDiesel engine (Image courtesy of Fiat Chrysler Automobiles)

The only trim that doesn’t get the diesel: the Mojave.

One interesting thing to note: While you’re fuel economy goes up, your tank capacity goes down if you opt for diesel over gasoline. EPA estimates for the EcoDiesel are 24/28/22 mpg in city/highway/combined driving, compared to 17/22/19 mpg. But whereas the gas model has a 22-gallon fuel tank, the diesel only gets an 18.3-gallon tank.

2021 Jeep Gladiator Overland (Image courtesy of Fiat Chrysler Automobiles)

80th Anniversary & Willys models

For 2020, Gladiator was only available with the standard Sport, Sport S, Overland, Mojave and Rubicon models. For 2020, Jeep adds the 80th Anniversary and Willys models to the lineup, but they haven’t really given us too much information (or photos) from either model. Jeep officials say the reveal of both these models will be in the next month or so.

What we do know: The anniversary edition will feature 18-inch wheels with a Granite Crystal finish, Neutral Grey Metallic exterior accents, the up-level 8.4-inch touchscreen, Berber floor mats and commemorative exterior badging.

We assume the Willys model will be similar to the Wrangler Willys and we know it will feature a limited slip rear differential, rock rails and 32-inch mud-terrain tires.

Though Jeep hasn’t provided us with any pricing info for either model, we assume the Wyllis will slot in between the Sport S and Overland, and the 80th Anniversary model will be just below Rubicon and Mojave.

2021 Jeep Gladiator Rubicon (Image courtesy of Fiat Chrysler Automobiles)

4WD available across lineup

Previously, the Sport, Sport S and Mojave models only came equipped a part-time 4WD system. Now for 2021, all models will have full-time 4WD available. This Selec-Trac two-speed transfer case will deliver a 2.72:1 low-gear ratio. To differentiate, the Rock-Trac two-speed transfer case on the Rubicon provides a 4:1 low-range gear ratio.

Other new stuff

The above items are the biggies, but there is also a smattering of updates and new features that will be included on the 2021 model. The two most notable changes: Overland models now offer the forward-facing off-road TrailCam camera, and Sport models now offer LED headlights and fog lights as optional equipment.

2021 Jeep Gladiator Mojave with Steel Gray interior featuring Mojave-exclusive orange accent stitching (Image courtesy of Fiat Chrysler Automobiles)

Specifications

General Information 
Vehicle TypeMidsize truck
Assembly PlantToledo Supplier Park, Toledo, Ohio
EPA Vehicle ClassMidsize truck
BODY AND CHASSIS
LayoutLongitudinal front engine, four-wheel drive
ConstructionLadder-type frame, open steel and aluminum body
Engine: 3.6-LITER PENTASTAR V-6
AvailabilityStandard — all models
Type and Description60-degree, V-type, liquid-cooled
Displacement (cu. in. / cc)220 cu. in. (3,604 cu. cm)
Compression Ratio11.3:1
Power (SAE net) (hp / kW@rpm)285 hp (209 kW) at 6,400 rpm
Torque (SAE net) (lb.-ft. / N•m)260 lb.-ft. (353 N•m) at 4,400 rpm
Max. Engine Speed (rpm)6,600 rpm (electronically limited)
Fuel RequirementUnleaded regular, 87 octane (R + M)/2
Fuel Tank Capacity (gallons)22
Oil Capacity5.7 quarts (5.4 liters)
Coolant Capacity10 quarts (10.1 liters)
Max. Gross Trailer Weight7,650 lbs.
EPA Fuel Economy mpg (city/hwy/combined)17/22/19 — automatic
16/23/19 — manual
Assembly PlantSaltillo South Engine Plant, Saltillo, Coahuila, Mexico
ENGINE: 3.0-LITER ECODIESEL V-6
AvailabilityAvailable – Sport, Rubicon, Overland
Type and Description60-degree diesel V-6
Displacement182 cu. in. (2,987 cu. cm)
ConstructionCompacted graphite iron cylinder block, aluminum alloy heads
Compression Ratio16.0:1
Power 260 hp (194 kW) @ 3,600 rpm
Torque 442 lb.-ft. (600 N•m) @ 1,400-2,800 rpm
Max. Engine Speed4,600 rpm
Fuel RequirementUltra-low sulfur diesel
Fuel Tank Capacity (gallons)18.3 (4-door)
Oil Capacity9.0 quarts (8.5 liters)
Coolant Capacity12.3 quarts (11.6 liters)
Emission ControlsHigh-pressure EGR, low-pressure EGR, oxidation catalyst, diesel particulate filter, SCR with urea injection
Max. Gross Trailer Weight6,500 lbs.
EPA Fuel Economy mpg (city/hwy)24/28/22 — automatic with ESS
Assembly PlantCento, Italy
Transmission: 850RE automatic, Eight-speed overdrive
AvailabilityOptional — 3.6-liter V-6
Gear Ratios
1st4.71
2nd3.13
3rd2.1
4th1.67
5th1.28
6th1
7th0.84
8th0.67
Reverse3.3
TRANSMISSION: D478 MANUAL, SIX-SPEED WITH OVERDRIVE
AvailabilityStandard — 3.6-liter V-6
Gear Ratios
1st5.13
2nd2.63
3rd1.53
4th1
5th0.81
6th0.72
Reverse4.49
Final Drive Ratio3.73 (Sport, Overland), 4.10 (Rubicon, Mojave, Sport Max. Tow)
TRANSMISSION: 8HP75 AUTOMATIC, EIGHT-SPEED OVERDRIVE
AvailabilityStandard – 3.0-liter EcoDiesel V-6
Gear Ratios
1st4.71
2nd3.13
3rd2.1
4th1.67
5th1.28
6th1
7th0,84
8th0.67
Reverse3.3
TRANSFER CASE: NV241 command-trac (MP1622)
AvailableStandard — Sport, Overland, Mojave
TypePart-time
Operating Modes2WD High; 4WD High; Neutral; 4WD Low
Low Range Ratio2.72:1
Axle Ratio3.73 / 4.10 (Mojave, Sport Max. Tow)
TRANSFER CASE: MP3022 Selec-Trac
AvailableOptional — all models
TypeFull-time
Operating Modes2WD High; Auto; 4WD High; Neutral; 4WD Low
Low Range Ratio4.0:1
Axle Ratio3.45 standard
3.73 / 4.10 (Mojave, Sport Max. Tow, Rubicon)
TRANSFER CASE: NV241OR Rock-trac (MP1622OR)
AvailableStandard — Rubicon
TypePart-time
Operating Modes2WD High; 4WD High; Neutral; 4WD Low
Low Range Ratio4.0:1
Axle Ratio4.1
Axles
Front3rd generation Dana heavy-duty axles
Differential typeOpen (Sport, Sport S, Overland, Mojave) or Tru-Lok electronic locking (Rubicon)
Axle ratios3.73, 4.10
Rear3rd generation Dana heavy-duty axles
Differential typeOpen (Sport, Overland) with available Trac-Lok anti-spin
Tru-Lok electronic locking (Mojave, Rubicon)
Axle ratios3.73, 4.10 (standard on Sport Max. Tow, Mojave, Rubicon)
Electrical System
Alternator (standard)180 amp (standard), 220 amp (Premium Audio Package) or 240 amp
(HD, Off-road Package)
BatteryH6 650 CCA (standard) or H7 700 CCA (HD Package)
Suspension
FrontSolid axle, link coil, leading arms, track bar, coil springs, stabilizer bar,
FOX hydraulic jounce bumper (Mojave exclusive)
Stabilizer barElectronic Sway-bar Disconnect System — standard, Rubicon
Shock typeSport and Overland: Gas-charged monotube shock absorbers with Multi-tuned Valve (MTV) technology
Mojave: FOX 2.5-in. diameter aluminum internal bypass shock absorbers with external reservoirs
Rubicon: High-pressure gas-charged FOX aluminum monotube shock absorbers with hydraulic rebound stop
RearSolid axle, link coil, trailing arms, track bar, coil springs, stabilizer bar
Shock typeSport and Overland: Gas-charged monotube shock absorbers with Multi-tuned Valve (MTV) technology
Mojave: FOX 2.5-in.diameter aluminum internal bypass shock absorbers with External Reservoirs
Rubicon: High-pressure, gas-charged FOX aluminum monotube shock
STEERING
TypeElectro-hydraulic power
Overall ratio13.3:1
Turning diameter (curb-to-curb) (ft./m)44.5 – Sport, Overland, 44.8 – Rubicon, 45.0 - Mojave
Steering turns (lock-to-lock)3.24
P/S pumpElectro-hydraulic
BRAKES
TypePower-assisted, anti-lock braking system
AvailabilityStandard
Front
Rotor size and type12.9 x 1.1 (330 x 28) vented rotor
Caliper size and type2 (51) twin-piston floating caliper
Rear
Rotor size and type13.6 x .86 (345 x 22) vented rotor
Caliper size and type2 (51) single-piston floating caliper
Dimensions and Capacities
Wheelbase137.3 (3,487)
Overhang — Front29.7 (755)
Overhang — Rear51.0 (1,296)
Track — Front62.9 (1,598) Sport, Overland / 64.4 (1,636) Sport Max. Tow,
Rubicon / 65 (1,650) Mojave
Track — Rear62.9 (1,598) Sport, Overland / 64.4 (1,636) Sport Max. Tow,
Rubicon / 65 (1,650) Mojave
Overall Length218.0 (5,539)
Overall Width73.8 (1,875)
Overall Height – Soft Top75.0 (1,907) / 76.1 (1,933) – Rubicon
Overall Height – Hardtop73.1 (1,857) / 74.1 (1,882) – Rubicon
Box Volume35.5 cu. ft. (1.0 cu. m)
Box Length, Tailgate Closed 60.3 (1,531)
Box Length, Tailgate Opened81.3 (2,067)
Cargo Width – Lift Gate56.8 (1,442)
Cargo Height – Lift Gate33.9 (861)
Liftover Height29.7 (755)
Load Floor Height – Axle33.3 (845)
Distances Between Wheelhouses44.8 (1,137)
Tailgate Opening Width50 (1,270)
Open Tailgate to Ground34.8 (885)
CLEARANCES
Standard on Sport/Overland
Approach Angle (degrees)40.8
Breakover Angle (degrees)18.4
Departure Angle (degrees)25
Ground Clearance (inches)10 (253)
Standard on Mojave
Approach Angle (degrees)44.7
Breakover Angle (degrees)20.9
Departure Angle (degrees)25.5
Ground Clearance (inches)11.6
Standard on Rubicon
Approach Angle (degrees)43.4
Breakover Angle (degrees)20.3
Departure Angle (degrees)26
Ground Clearance (inches)11.1 (283)
CURB WEIGHT3.6-liter Pentastar V-6
Jeep Gladiator Sport
Automatic transmission (lbs./kg)4,672 (2,119)
Manual transmission (lbs./kg)4,650 (2,109)
Jeep Gladiator Sport S
Automatic transmission (lbs./kg)4,672 (2,119)
Manual transmission (lbs./kg)4,650 (2,109)
Jeep Gladiator Overland
Automatic transmission (lbs./kg)4,742 (2,137)
Manual transmission (lbs./kg)4,720 (2,141)
Jeep Gladiator Mojave
Automatic transmission (lbs./kg)4,974 (2,256)
Manual transmission (lbs./kg)4,952 (2,246)
Jeep Gladiator Rubicon
Automatic transmission (lbs./kg)5,072 (2,301)
Manual transmission (lbs./kg)5,050 (2,291)
*weights differ by transmission called out
Accommodations
Seating Capacity5
Front
Headroom42.8 (1,087) soft top / 40.8 (1036) hardtop
Legroom41.2 (1,038)
Shoulder room55.7 (1,417)
Hip room53.9 (1,370)
Seat travel9.4 (239.5)
Rear
Headroom42.8 (1,087) soft top / 40.8 (1036) hardtop
Legroom38.3 (966)
Knee clearance2.7 (69)
Shoulder room55.7 (1,416)
Hip room55.9 (1,421)

Related posts:

Power To The People, 2021 Jeep Gladiator: Adds EcoDiesel Trim

Jeep addresses Gladiator, Wrangler steering issue

How is 2020 Jeep Gladiator reliability so far? Early reports suggest a consistent issue

 

4 COMMENTS

  1. That’s really odd that the diesel tank is so much smaller. To the best of my knowledge, that might be the smallest fuel tank of any truck on the market. I wonder if FCA had to make the tank smaller to accommodate a DEF tank too?

    • Just did a quick look at Silverado, and the tank is smaller, but not in the teens. Regular Cab has a 28.3-gallon fuel tank, Double & Crew have a 24-gallon tank. Diesel is a 22-gallon tank. 🤷🏻‍♀️

      • That’s really interesting. I guess with the smaller diesel engines you don’t necessarily get the significantly longer range that you would expect given the fuel economy. The gladiator gas gets 484 miles to a tank highway while the diesel gets 512.4. Glad you pointed out the fuel tank size, I would have assumed that they would use the same size for diesel and gas

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