The Jeep Gladiator Rubicon, specifically the variant equipped with the 3.6-liter Pentastar V6 engine and an eight-speed automatic transmission, represents a significant offering in the mid-size pickup truck segment. Introduced with the 2024 facelift of the JT generation, this configuration builds upon the Gladiator’s unique position as a factory-built, off-road capable pickup, blending the iconic Jeep heritage with practical utility. This particular trim level sits at the higher end of the Gladiator lineup, targeting enthusiasts who desire both on-road comfort and serious off-road prowess without sacrificing the convenience of an automatic transmission.
Technical Specifications
| Brand | Jeep |
| Model | Gladiator |
| Generation | Gladiator (JT, facelift 2024) |
| Type (Engine) | Rubicon 3.6 Pentastar V6 (285 Hp) 4×4 Automatic |
| Start of production | February, 2024 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Pick-up |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (economy) – urban (EPA) | 13.8 l/100 km (17 US mpg, 20.5 UK mpg, 7.2 km/l) |
| Fuel consumption (economy) – extra urban (EPA) | 10.7 l/100 km (22 US mpg, 26.4 UK mpg, 9.3 km/l) |
| Fuel consumption (economy) – combined (EPA) | 12.4 l/100 km (19 US mpg, 22.8 UK mpg, 8.1 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Weight-to-power ratio | 8 kg/Hp, 124.9 Hp/tonne |
| Weight-to-torque ratio | 6.5 kg/Nm, 154.7 Nm/tonne |
| Power | 285 Hp @ 6400 rpm |
| Power per litre | 79.1 Hp/l |
| Torque | 353 Nm @ 4400 rpm (260.36 lb.-ft. @ 4400 rpm) |
| Maximum engine speed | 6600 rpm |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | Pentastar / ERC |
| Engine displacement | 3604 cm3 (219.93 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | V-engine |
| Cylinder Bore | 96 mm (3.78 in.) |
| Piston Stroke | 83 mm (3.27 in.) |
| Compression ratio | 11.3:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | DOHC |
| Engine oil capacity | 4.7 l (4.97 US qt | 4.14 UK qt) |
| Coolant | 12.3 l (13 US qt | 10.82 UK qt) |
| Kerb Weight | 2282 kg (5030.95 lbs.) |
| Max. weight | 2826 kg (6230.26 lbs.) |
| Max load | 544 kg (1199.31 lbs.) |
| Fuel tank capacity | 83 l (21.93 US gal | 18.26 UK gal) |
| Permitted trailer load with brakes (12%) | 3175 kg (6999.68 lbs.) |
| Length | 5539 mm (218.07 in.) |
| Width | 1875 mm (73.82 in.) |
| Height | 1882-1933 mm (74.09 – 76.1 in.) |
| Wheelbase | 3487 mm (137.28 in.) |
| Front track | 1636 mm (64.41 in.) |
| Rear (Back) track | 1636 mm (64.41 in.) |
| Front overhang | 755 mm (29.72 in.) |
| Rear overhang | 1296 mm (51.02 in.) |
| Ride height (ground clearance) | 282 mm (11.1 in.) |
| Minimum turning circle (turning diameter) | 13.62 m (44.69 ft.) |
| Approach angle | 43.4° |
| Departure angle | 26° |
| Ramp-over (brakeover) angle | 20.3° |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the rear wheels permanently, and the front wheels are driven through an electrically or mechanically operated clutch if necessary. |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 8 gears, automatic transmission |
| Front suspension | Coil spring, Rigid axle suspension, Transverse stabilizer |
| Rear suspension | Rigid axle suspension, Transverse stabilizer, Coil spring |
| Front brakes | Ventilated discs, 330×28 mm |
| Rear brakes | Ventilated discs, 345×22 mm |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Cone worm with recirculation balls |
| Power steering | Electric Steering |
| Tires size | 285/70 R17 |
| Wheel rims size | 7.5J x 17 |
Powertrain & Engine Architecture
At the heart of this Gladiator Rubicon lies the 3.6-liter Pentastar V6 engine, a mainstay of the FCA (now Stellantis) lineup for many years. Designated as the ERC engine code, this naturally aspirated engine utilizes multi-port fuel injection and a double overhead camshaft (DOHC) valvetrain with four valves per cylinder. The 11.3:1 compression ratio contributes to its respectable power output. The engine is longitudinally mounted in the chassis, driving power to all four wheels through a sophisticated eight-speed automatic transmission. This transmission, known for its smooth shifts and wide gear ratio spread, is crucial for balancing on-road drivability with off-road crawling capability. The automatic transmission is a key differentiator from the standard six-speed manual offered on other Gladiator trims.
Driving Characteristics
The combination of the 285 horsepower Pentastar V6 and the eight-speed automatic transmission delivers a competent, if not exhilarating, driving experience. While not as quick as some turbocharged competitors, the Gladiator Rubicon provides ample torque for everyday driving and hauling. The automatic transmission is well-tuned for both on-road cruising and low-speed off-road maneuvering. The wider gear ratios allow for a comfortable highway experience while providing the necessary low-end grunt for tackling challenging terrain. Compared to the manual transmission, the automatic offers greater convenience, particularly in stop-and-go traffic or during technical off-roading. However, some enthusiasts may prefer the greater control offered by a manual gearbox.
Equipment & Trim Levels
The Rubicon trim level is exceptionally well-equipped, focusing on off-road capability. Standard features include heavy-duty Dana 44 axles with electronic locking differentials, a disconnecting front sway bar, rock rails, and all-terrain tires. Inside, the Rubicon typically features cloth or leather upholstery, a user-friendly infotainment system with a touchscreen display, and available features like navigation, premium audio, and heated seats. The 2024 facelift brought updated interior materials and technology, enhancing the overall refinement of the cabin. Optional extras often include a power-adjustable driver’s seat, a premium sound system, and various safety features.
Chassis & Braking
The Gladiator Rubicon’s chassis is built around a high-strength steel frame, designed to withstand the rigors of off-road use. The suspension utilizes coil springs and rigid axles front and rear, providing substantial wheel articulation. A transverse stabilizer bar helps to control body roll during on-road driving. The braking system consists of ventilated discs at all four corners, providing adequate stopping power for the vehicle’s weight. The Rubicon’s robust suspension and braking system are specifically tuned to handle both on-road and off-road conditions.
Market Reception & Comparison
The Jeep Gladiator Rubicon has been widely praised for its unique combination of off-road capability and pickup truck practicality. Critics have lauded its rugged design, comfortable interior, and impressive off-road performance. The 3.6-liter V6 and automatic transmission combination has been generally well-received, offering a good balance of power and convenience. Fuel economy, however, is a common criticism, with the Gladiator achieving around 19 mpg in combined driving. Compared to other trims, the Rubicon offers superior off-road hardware but comes at a higher price point. The lower trims, with the manual transmission, offer slightly better fuel economy and a more engaging driving experience for some drivers.
Legacy
The 3.6-liter Pentastar V6 engine has proven to be a reliable and durable powerplant in numerous FCA vehicles. While not without its minor issues (such as potential oil consumption in some early models), the engine is generally considered to be a robust and long-lasting unit. The eight-speed automatic transmission has also demonstrated good reliability. As a result, the Gladiator Rubicon with this powertrain is expected to hold its value well in the used car market. Its unique combination of off-road capability, Jeep heritage, and practical utility ensures its continued appeal to enthusiasts for years to come.
