The Jeep Grand Cherokee SRT 6.4L V8 4×4 Automatic, produced from 2014 to 2016, represents the high-performance variant of the fourth-generation Grand Cherokee (WK2) following its facelift. Positioned as the flagship model, the SRT aimed to deliver sports car-like performance within the luxury SUV segment. It distinguished itself from other Grand Cherokee trims – such as the Laredo, Limited, and Overland – through its significantly more powerful engine, aggressive styling, and performance-tuned chassis. This model catered to buyers seeking a blend of everyday practicality, towing capability, and exhilarating acceleration.
Technical Specifications
| Brand | Jeep |
| Model | Grand Cherokee |
| Generation | Grand Cherokee IV (WK2, facelift 2013) |
| Type | SRT 6.4 V8 (476 Hp) 4×4 Automatic |
| Start of production | 2014 |
| End of production | 2016 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | SUV |
| Seats | 5 |
| 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) |
| Maximum speed | 257 km/h (159.69 mph) |
| Weight-to-power ratio | 4.9 kg/Hp, 203.8 Hp/tonne |
| Weight-to-torque ratio | 3.7 kg/Nm, 269.7 Nm/tonne |
| Power | 476 Hp @ 6000 rpm |
| Power per litre | 74.2 Hp/l |
| Torque | 630 Nm @ 4300 rpm (464.66 lb.-ft. @ 4300 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | ESG |
| Engine displacement | 6417 cm3 (391.59 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 |
| Valvetrain | OHV |
| Engine oil capacity | 6.6 l (6.97 US qt | 5.81 UK qt) |
| Coolant | 15.5 l (16.38 US qt | 13.64 UK qt) |
| Kerb Weight | 2336 kg (5150 lbs.) |
| Max. weight | 2948 kg (6499.23 lbs.) |
| Max load | 612 kg (1349.23 lbs.) |
| Fuel tank capacity | 93 l (24.57 US gal | 20.46 UK gal) |
| Permitted trailer load with brakes (12%) | 3266 kg (7200.3 lbs.) |
| Length | 4859 mm (191.3 in.) |
| Width | 1958 mm (77.09 in.) |
| Width including mirrors | 2156 mm (84.88 in.) |
| Height | 1756 mm (69.13 in.) |
| Wheelbase | 2915 mm (114.76 in.) |
| Front track | 1617 mm (63.66 in.) |
| Rear track | 1633 mm (64.29 in.) |
| Ride height (ground clearance) | 211 mm (8.31 in.) |
| Drag coefficient (Cd) | 0.39 |
| Minimum turning circle | 11.3 m (37.07 ft.) |
| Approach angle | 18.45° |
| Departure angle | 21.9° |
| Ramp-over angle | 17.84° |
| Drive wheel | All wheel drive (4×4) |
| Number of gears | 8 |
| Gearbox type | Automatic transmission |
| 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 | 20 |
Powertrain & Engine Architecture
The heart of the Grand Cherokee SRT is the 6.4-liter (392 cubic inch) HEMI V8 engine, internally designated as the ESG. This naturally aspirated powerplant boasts 476 horsepower at 6,000 rpm and 464 lb-ft of torque at 4,300 rpm. The engine utilizes a cast iron block with aluminum cylinder heads, featuring a multi-port fuel injection system and an overhead valve (OHV) valvetrain. The 10.9:1 compression ratio contributes to its robust power output. The engine is longitudinally mounted in the front of the vehicle. The SRT was exclusively paired with an eight-speed automatic transmission (845RE), known for its quick shifts and wide gear ratio spread. This transmission was specifically tuned for performance, offering manual shift control via steering wheel-mounted paddles.
Driving Characteristics
The combination of the 6.4L HEMI and the eight-speed automatic delivers impressive acceleration. The SRT can sprint from 0 to 60 mph in approximately 4.8 seconds. The transmission’s gear ratios are optimized for both quick off-the-line launches and comfortable highway cruising. While the automatic transmission provides convenience, some enthusiasts noted that it doesn’t offer the same level of engagement as a manual transmission. The SRT’s suspension is significantly stiffer than other Grand Cherokee models, providing improved handling and reduced body roll. However, this comes at the expense of some ride comfort. The Quadra-Trac Active 4×4 system provides excellent traction in various conditions, enhancing both on-road and off-road performance.
Equipment & Trim Levels
The SRT trim came standard with a comprehensive list of features, including leather upholstery with suede inserts, performance seats with enhanced bolstering, a premium sound system, a large touchscreen infotainment system, and a host of advanced safety technologies. Exterior features included unique SRT styling cues, such as a distinctive grille, aggressive front and rear fascias, and quad exhaust outlets. Optional extras included a dual-pane panoramic sunroof, adaptive cruise control, and blind-spot monitoring. The interior typically featured a black color scheme with contrasting red stitching.
Chassis & Braking
The SRT’s chassis was heavily modified compared to other Grand Cherokee models. It featured a lowered ride height, stiffer springs, and upgraded shock absorbers. The rear suspension utilized a multi-link design with a thicker stabilizer bar. Braking duties were handled by high-performance Brembo brakes with ventilated discs at all four corners. These brakes provided exceptional stopping power and fade resistance. The SRT also featured a sport-tuned steering system for improved responsiveness and feedback.
Market Reception & Comparison
The Jeep Grand Cherokee SRT was generally well-received by automotive critics. It was praised for its powerful engine, impressive acceleration, and sporty handling. However, some reviewers criticized its firm ride and relatively poor fuel economy. Compared to the standard Grand Cherokee trims, the SRT offered a significantly more engaging driving experience but came at a higher price point. Against competitors like the BMW X5 M and Porsche Cayenne Turbo, the SRT offered a compelling combination of performance, luxury, and off-road capability at a more accessible price.
Legacy
The 6.4L HEMI-powered Grand Cherokee SRT remains a popular choice in the used car market. The engine is known for its reliability, although regular maintenance is crucial. Common issues include oil consumption and potential problems with the fuel pump. The eight-speed automatic transmission has also proven to be generally reliable, but fluid changes should be performed according to the manufacturer’s recommendations. The SRT’s robust construction and readily available parts ensure that it will continue to be a desirable performance SUV for years to come. Its blend of power, luxury, and capability has cemented its place as a standout model in the Grand Cherokee lineage.
