2021 Dodge Durango III (WD facelift ) HELLCAT 6.2 HEMI V8 (710 Hp) AWD TORQUEFLITE

The Dodge Durango Hellcat, specifically the variant produced from 2021 onwards following a facelift of the third-generation (WD) Durango, represents the pinnacle of performance for the model line. This iteration features a supercharged 6.2-liter HEMI V8 engine producing 710 horsepower, paired with an eight-speed TorqueFlite automatic transmission and a full-time all-wheel-drive system. Positioned as the top-tier performance model, the Hellcat Durango caters to buyers seeking uncompromising power and capability in a three-row SUV package. It builds upon the Durango’s established reputation as a robust and versatile vehicle, elevating it to compete with high-performance SUVs from other manufacturers.

Technical Specifications

Brand Dodge
Model Durango
Generation Durango III (WD, facelift 2021)
Type (Engine) HELLCAT 6.2 HEMI V8 (710 Hp) AWD TORQUEFLITE
Start of production 2021
Powertrain Architecture Internal Combustion engine
Body type SUV, MPV
Seats 6
Doors 5
Fuel consumption (economy) – urban (EPA) 19.6 l/100 km (12 US mpg, 14.4 UK mpg, 5.1 km/l)
Fuel consumption (economy) – extra urban (EPA) 13.8 l/100 km (17 US mpg, 20.5 UK mpg, 7.2 km/l)
Fuel consumption (economy) – combined (EPA) 18.1 l/100 km (13 US mpg, 15.6 UK mpg, 5.5 km/l)
Fuel Type Petrol (Gasoline)
Acceleration 0 – 60 mph 3.5 sec
Weight-to-power ratio 3.6 kg/Hp, 280.7 Hp/tonne
Weight-to-torque ratio 2.9 kg/Nm, 346 Nm/tonne
Power 710 Hp @ 6100 rpm
Power per litre 115.1 Hp/l
Torque 875 Nm @ 4800 rpm (645.37 lb.-ft. @ 4800 rpm)
Maximum engine speed 6100 rpm
Engine layout Front, Longitudinal
Engine Model/Code Hellcat
Engine displacement 6166 cm3 (376.27 cu. in.)
Number of cylinders 8
Engine configuration V-engine
Cylinder Bore 103.9 mm (4.09 in.)
Piston Stroke 90.9 mm (3.58 in.)
Compression ratio 9.5:1
Number of valves per cylinder 2
Fuel injection system Multi-port manifold injection
Engine aspiration Supercharger, Intercooler
Valvetrain OHV
Engine oil capacity 7.9 l (8.35 US qt | 6.95 UK qt)
Coolant 13.9 l (14.69 US qt | 12.23 UK qt)
Kerb Weight 2529 kg (5575.49 lbs.)
Max. weight 3221 kg (7101.09 lbs.)
Max load 692 kg (1525.6 lbs.)
Trunk (boot) space – minimum 487 l (17.2 cu. ft.)
Trunk (boot) space – maximum 2410 l (85.11 cu. ft.)
Fuel tank capacity 93.1 l (24.59 US gal | 20.48 UK gal)
Permitted trailer load with brakes (12%) 3946 kg (8699.44 lbs.)
Length 5104 mm (200.94 in.)
Width 1940 mm (76.38 in.)
Width including mirrors 2172 mm (85.51 in.)
Height 1831 mm (72.09 in.)
Wheelbase 3042 mm (119.76 in.)
Front track 1637 mm (64.45 in.)
Rear (Back) track 1645 mm (64.76 in.)
Ride height (ground clearance) 200 mm (7.87 in.)
Drag coefficient (Cd) 0.38
Minimum turning circle (turning diameter) 12.5 m (41.01 ft.)
Approach angle 18.5°
Departure angle 20.2°
Ramp-over (brakeover) angle 16.3°
Drivetrain Architecture The Internal combustion engine (ICE) drives permanently the four wheels of the vehicle.
Drive wheel All wheel drive (4×4)
Number of gears and type of gearbox 8 gears, automatic transmission
Front suspension Coil spring, Double wishbone, Transverse stabilizer
Rear suspension Independent multi-link spring suspension with stabilizer
Front brakes Ventilated discs, 400×36 mm
Rear brakes Ventilated discs, 350×28 mm
Assisting systems ABS (Anti-lock braking system)
Steering type Steering rack and pinion
Power steering Electric Steering
Tires size 295/45 R20
Wheel rims size 10J x 20

INTRODUCTION

The 2021 Dodge Durango Hellcat represents a significant leap in performance for the Durango model line. Built on the WD platform, which is a heavily revised version of the previous generation, the Hellcat variant was introduced to capitalize on the growing demand for high-performance SUVs. It slots above the R/T, SRT 392, and other trims, offering a substantial power increase and a more aggressive aesthetic. The Durango, in general, has always been positioned as a more rugged and spacious alternative to other large SUVs, and the Hellcat amplifies this characteristic with its imposing presence and formidable capabilities.

Powertrain & Engine Architecture

At the heart of the Durango Hellcat lies the 6.2-liter supercharged HEMI V8 engine, internally designated as the Hellcat engine. This engine utilizes a cast iron block with aluminum cylinder heads, and features a robust rotating assembly designed to withstand the stresses of high-performance operation. The engine employs a Roots-type supercharger with integrated intercooling to force air into the cylinders, significantly boosting power output. Fuel delivery is managed by a multi-port fuel injection system. The valvetrain utilizes a pushrod (OHV) design, a traditional HEMI characteristic, contributing to its compact size and efficient operation. The engine is mated to a ZF-sourced eight-speed TorqueFlite automatic transmission, known for its smooth shifts and durability. This transmission is specifically calibrated for the Hellcat’s high power output, featuring strengthened components and optimized shift points.

Driving Characteristics

The Durango Hellcat delivers exhilarating acceleration, achieving a 0-60 mph time of just 3.5 seconds. The eight-speed automatic transmission provides quick and precise shifts, although it prioritizes smooth operation over outright aggressive downshifts. The full-time all-wheel-drive system provides excellent traction, particularly during acceleration and in inclement weather. While the Hellcat offers impressive on-road performance, its substantial weight (over 5,500 lbs) is noticeable during cornering. Compared to the naturally aspirated 5.7L and 6.4L V8 Durango models, the Hellcat offers a dramatically different driving experience, characterized by its immediate and overwhelming power delivery. The 6.4L SRT model provides a more balanced experience, while the 5.7L offers a more fuel-efficient and affordable option.

Equipment & Trim Levels

The Durango Hellcat comes standard with a comprehensive suite of features, including premium leather upholstery, heated and ventilated front seats, a large touchscreen infotainment system with navigation, and a high-performance audio system. Standard exterior features include unique Hellcat badging, a distinctive grille, and aggressive body styling. Optional extras include a rear-seat entertainment system, advanced safety features such as adaptive cruise control and lane departure warning, and various appearance packages. The interior trim is generally focused on sporty luxury, with available carbon fiber accents and performance-inspired design elements.

Chassis & Braking

The Durango Hellcat features a reinforced chassis and upgraded suspension components to handle the increased power and torque. The front suspension utilizes a coil spring, double wishbone setup with a transverse stabilizer bar, while the rear suspension employs an independent multi-link design with a stabilizer bar. Braking duties are handled by ventilated disc brakes at all four corners, with larger rotors and upgraded calipers compared to lower trims. The braking system is assisted by an Anti-lock Braking System (ABS) for enhanced safety and control. The Durango Hellcat’s suspension is tuned for a balance between performance and comfort, offering a relatively compliant ride for a vehicle of its size and capability.

Market Reception & Comparison

The Durango Hellcat received generally positive reviews from automotive critics, who praised its incredible performance and surprisingly comfortable ride. However, its fuel economy (13 mpg combined) was a common criticism. Compared to other high-performance SUVs, such as the Jeep Grand Cherokee Trackhawk (which shares the same engine), the Durango Hellcat offered a more spacious interior and a lower price point. The Hellcat’s fuel economy is significantly worse than the V6 and 5.7L V8 Durango models, but the performance difference is substantial. Reliability has been generally good, although the complexity of the supercharged engine requires diligent maintenance.

Legacy

The Dodge Durango Hellcat has quickly become a sought-after vehicle in the used car market, commanding a premium price due to its limited production and unique performance capabilities. The 6.2L supercharged HEMI engine, while complex, has proven to be relatively durable when properly maintained. The Durango Hellcat represents a bold statement from Dodge, showcasing the brand’s commitment to high-performance vehicles. It solidified the Durango’s position as a unique offering in the SUV segment, blending practicality with exhilarating power and a distinctive American muscle car attitude.

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