The Dodge Durango SRT 6.4L V8 4WD Automatic, produced from 2018 to 2020, represents the high-performance pinnacle of the third-generation Durango (WD) facelift. Positioned as the flagship trim, it catered to buyers seeking a powerful and capable full-size SUV with a focus on spirited driving. This variant built upon the refreshed styling and features introduced in the 2014 facelift, offering a substantial upgrade in performance over lower trims like the V6 and the 5.7L HEMI models. It competed directly with performance SUVs like the Jeep Grand Cherokee SRT and the Chevrolet Tahoe/Suburban with the 6.2L V8.
Technical Specifications
| Brand | Dodge |
| Model | Durango |
| Generation | Durango III (WD, facelift 2014) |
| Type (Engine) | SRT 6.4 V8 (481 Hp) 4WD Automatic |
| Start of production | 2018 |
| End of production | 2020 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | SUV |
| Seats | 6 |
| Doors | 5 |
| Fuel consumption (urban) | 18.1 l/100 km (13 US mpg, 15.6 UK mpg, 5.5 km/l) |
| Fuel consumption (extra urban) | 12.4 l/100 km (19 US mpg, 22.8 UK mpg, 8.1 km/l) |
| Fuel consumption (combined) | 15.7 l/100 km (15 US mpg, 18 UK mpg, 6.4 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Weight-to-power ratio | 5.2 kg/Hp, 192.5 Hp/tonne |
| Weight-to-torque ratio | 3.9 kg/Nm, 254.9 Nm/tonne |
| Power | 481 Hp @ 6000 rpm |
| Power per litre | 74.9 Hp/l |
| Torque | 637 Nm @ 4300 rpm (469.83 lb.-ft. @ 4300 rpm) |
| Maximum engine speed | 6400 rpm |
| Engine layout | Front, Longitudinal |
| Engine displacement | 6424 cm3 (392.02 cu. in.) |
| Number of cylinders | 8 |
| Engine configuration | V-engine |
| Cylinder Bore | 103.9 mm (4.09 in.) |
| Piston Stroke | 94.5 mm (3.72 in.) |
| Compression ratio | 10.9:1 |
| Number of valves per cylinder | 2 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Engine oil capacity | 6.6 l (6.97 US qt | 5.81 UK qt) |
| Coolant capacity | 13.2 l (13.95 US qt | 11.61 UK qt) |
| Kerb Weight | 2499 kg (5509.35 lbs.) |
| Max. weight | 2948 kg (6499.23 lbs.) |
| Max load | 449 kg (989.88 lbs.) |
| Trunk (boot) space – minimum | 487 l (17.2 cu. ft.) |
| Trunk (boot) space – maximum | 2393 l (84.51 cu. ft.) |
| Fuel tank capacity | 93 l (24.57 US gal | 20.46 UK gal) |
| Length | 5110 mm (201.18 in.) |
| Width | 1958 mm (77.09 in.) |
| Width including mirrors | 2172 mm (85.51 in.) |
| Height | 1826 mm (71.89 in.) |
| Wheelbase | 3043 mm (119.8 in.) |
| Front track | 1636 mm (64.41 in.) |
| Rear (Back) track | 1643 mm (64.69 in.) |
| Ride height (ground clearance) | 203 mm (7.99 in.) |
| Drag coefficient (Cd) | 0.37 |
| Minimum turning circle (turning diameter) | 11.3 m (37.07 ft.) |
| Approach angle | 18.3° |
| Departure angle | 20.3° |
| Ramp-over (brakeover) angle | 16.2° |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 8 gears, automatic transmission |
| Front suspension | Independent coil spring |
| Rear suspension | Independent multi-link suspension |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| 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 Dodge Durango SRT 6.4L V8 4WD Automatic, launched for the 2018 model year, represented a significant performance upgrade for the Durango lineup. Built on the WD platform, which was a heavily revised version of the previous generation, the SRT model aimed to deliver a blend of everyday practicality and high-performance capability. It slotted above the R/T trim, offering a substantial power increase and a more aggressive aesthetic. The 2018-2020 SRT Durango was a relatively short-lived iteration, but it cemented the Durango’s reputation as a powerful and versatile SUV.
Powertrain & Engine Architecture
At the heart of the Durango SRT lies the 6.4-liter (392 cubic inch) HEMI V8 engine, internally designated as the 6.4L. This naturally aspirated engine produces 481 horsepower at 6,000 rpm and 470 lb-ft of torque at 4,300 rpm. The engine features multi-port fuel injection and a robust cast iron block with aluminum cylinder heads. The valvetrain utilizes overhead valves with two valves per cylinder. The engine’s design prioritizes low-end torque for strong acceleration and towing capacity. The engine is paired with a ZF-sourced eight-speed automatic transmission, known for its smooth shifts and wide gear ratio spread. This transmission is specifically tuned for the SRT model to provide quicker response times and more aggressive shift points. The 4WD system is full-time, utilizing an electronic limited-slip rear differential for enhanced traction.
Driving Characteristics
The Durango SRT delivers a noticeably different driving experience compared to the lower-trim Durangos. The substantial horsepower and torque provide brisk acceleration, with 0-60 mph times consistently in the low 5-second range. The eight-speed automatic transmission effectively manages the engine’s power, providing smooth upshifts and downshifts. While the Durango SRT is a large SUV, the suspension is tuned for performance, offering reduced body roll and improved handling. The steering is responsive, providing a connected feel to the road. However, the firm suspension can result in a slightly less comfortable ride compared to the standard Durango models. The 4WD system provides excellent traction in various conditions, making it a capable all-weather vehicle.
Equipment & Trim Levels
The Durango SRT came standard with a comprehensive list of features, including leather upholstery, heated and ventilated front seats, a premium sound system, and a large touchscreen infotainment system with navigation. Standard exterior features included unique SRT styling cues, such as a distinctive grille, aggressive front and rear fascias, and 20-inch alloy wheels. Optional extras included a dual-screen rear entertainment system, a panoramic sunroof, and various appearance packages. The interior typically featured performance-inspired accents, such as carbon fiber trim and SRT-branded badging.
Chassis & Braking
The Durango SRT features a reinforced chassis and upgraded suspension components compared to other Durango trims. The front suspension utilizes independent coil springs, while the rear suspension employs an independent multi-link setup. Braking duties are handled by high-performance Brembo brakes with ventilated discs at all four corners, providing excellent stopping power. The SRT also features a sport-tuned steering system for improved responsiveness. The standard tire size is 295/45R20, providing a wide contact patch for enhanced grip.
Market Reception & Comparison
The Durango SRT was generally well-received by automotive critics, who praised its powerful engine, capable handling, and spacious interior. However, its fuel economy was a common criticism, as expected for a vehicle of its size and performance. Compared to the Durango R/T (with the 5.7L HEMI), the SRT offered a significant performance upgrade but came at a higher price point. Against competitors like the Jeep Grand Cherokee SRT, the Durango SRT offered more interior space and a slightly lower price, while the Grand Cherokee SRT was often considered to have more refined handling.
Legacy
The 2018-2020 Dodge Durango SRT 6.4L V8 4WD Automatic remains a desirable vehicle in the used car market. The 6.4L HEMI engine is known for its reliability, although regular maintenance is crucial. Common issues reported by owners include occasional sensor failures and potential oil consumption as the engine ages. The Durango SRT’s combination of performance, practicality, and spaciousness has made it a popular choice for buyers seeking a high-performance SUV. Its relatively short production run has also contributed to its collectibility, with well-maintained examples holding their value relatively well.
