The Jeep Grand Cherokee SRT 6.4L V8 4×4 Automatic represents the high-performance variant of the fourth-generation Grand Cherokee (WK2), specifically those produced during the 2016 and 2017 model years following the facelift introduced in 2013. Positioned as the flagship trim, the SRT aimed to blend the Grand Cherokee’s luxury and capability with serious performance credentials, directly competing with performance SUVs from European manufacturers. This model year saw refinements to the already potent SRT formula, solidifying its place as a formidable player in the performance SUV segment.
Technical Specifications
| Brand | Jeep |
| Model | Grand Cherokee |
| Generation | Grand Cherokee IV (WK2, facelift 2013) |
| Type (Engine) | SRT 6.4 V8 (481 Hp) 4×4 Automatic |
| Start of production | 2016 |
| End of production | 2017 |
| 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) |
| Acceleration 0 – 100 km/h | 5 sec |
| Acceleration 0 – 62 mph | 5 sec |
| Acceleration 0 – 60 mph | 4.8 sec |
| Maximum speed | 257 km/h (159.69 mph) |
| Weight-to-power ratio | 4.8 kg/Hp, 207.8 Hp/tonne |
| Weight-to-torque ratio | 3.6 kg/Nm, 275.2 Nm/tonne |
| Power | 481 Hp @ 6000 rpm |
| Power per litre | 75 Hp/l |
| Torque | 637 Nm @ 4300 rpm (469.83 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 | 2315 kg (5103.7 lbs.) |
| Max. weight | 2948 kg (6499.23 lbs.) |
| Max load | 633 kg (1395.53 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 | 1717 mm (67.6 in.) |
| Wheelbase | 2915 mm (114.76 in.) |
| Front track | 1617 mm (63.66 in.) |
| Rear (Back) track | 1633 mm (64.29 in.) |
| Ride height (ground clearance) | 211 mm (8.31 in.) |
| Drag coefficient (Cd) | 0.39 |
| Minimum turning circle (turning diameter) | 11.3 m (37.07 ft.) |
| Approach angle | 18.45° |
| Departure angle | 21.9° |
| Ramp-over (brakeover) angle | 17.84° |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 8 gears, 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 |
INTRODUCTION
The 2016-2017 Jeep Grand Cherokee SRT 6.4L V8 4×4 Automatic is a performance-oriented SUV built on the WK2 platform. Introduced as a halo model for the Grand Cherokee lineup, the SRT aimed to deliver a compelling combination of on-road performance, off-road capability, and luxury features. The “SRT” designation, formerly signifying Street & Racing Technology, indicated a focus on enhanced performance through engine upgrades, suspension tuning, and aggressive styling. This iteration of the SRT benefited from the mid-cycle refresh of the WK2, incorporating updated interior technology and exterior aesthetics.
Powertrain & Engine Architecture
At the heart of the SRT is the 6.4-liter (392 cubic inch) HEMI V8 engine, internally designated as the ESG. This naturally aspirated powerplant produces 481 horsepower at 6000 rpm and 470 lb-ft of torque at 4300 rpm. The engine utilizes a cast iron block, aluminum cylinder heads, and a multi-point fuel injection system. The valvetrain employs overhead valves (OHV) with two valves per cylinder. The engine’s robust construction and relatively simple design contribute to its durability and reliability. The engine is mated to an eight-speed automatic transmission (ZF 8HP70) known for its smooth shifting and wide gear ratio spread. This transmission is crucial for balancing performance and fuel efficiency. The 4×4 system is Jeep’s Quadra-Trac Active On-Demand system, providing automatic switching between two-wheel drive and four-wheel drive based on driving conditions.
Driving Characteristics
The SRT’s driving experience is markedly different from other Grand Cherokee trims. The 6.4L V8 delivers strong acceleration, achieving 0-60 mph in around 4.8 seconds. The eight-speed automatic transmission is well-tuned, providing quick and decisive shifts. While not as fuel-efficient as the V6 or diesel options, the SRT offers a thrilling exhaust note and a powerful surge of torque. The suspension is significantly stiffer than other Grand Cherokee models, resulting in reduced body roll during cornering but also a firmer ride quality. The steering is precise and responsive, contributing to a confident driving feel. The Quadra-Trac system provides excellent traction in various conditions, making the SRT capable both on and off-road, though its performance focus leans heavily towards paved surfaces.
Equipment & Trim Levels
The SRT trim came standard with a comprehensive list of features, including leather upholstery with suede inserts, performance seats with bolstering, a flat-bottom steering wheel, and a premium audio system. Interior trim typically featured carbon fiber accents. Standard technology included an 8.4-inch touchscreen infotainment system with navigation, Bluetooth connectivity, and a rearview camera. Optional extras included adaptive cruise control, blind-spot monitoring, and a dual-pane panoramic sunroof. The SRT also featured unique exterior styling cues, such as a distinctive front fascia, aggressive rear diffuser, and quad exhaust outlets.
Chassis & Braking
The SRT’s chassis benefits from several performance-enhancing upgrades. The suspension features adaptive damping, allowing the driver to adjust the ride firmness. Stabilizer bars are thicker than those found on other Grand Cherokee models, further reducing body roll. The braking system consists of ventilated discs at all four corners, with Brembo calipers providing enhanced stopping power. The SRT also features a sport-tuned steering system for improved responsiveness. The tires are typically high-performance all-season or summer tires, sized 295/45R20, contributing to grip and handling.
Market Reception & Comparison
The Jeep Grand Cherokee SRT was generally well-received by automotive critics, praised for its powerful engine, sporty handling, and luxurious interior. However, some reviewers noted the firm ride quality and relatively poor fuel economy. Compared to the standard Grand Cherokee trims, the SRT offered a significant performance upgrade but at a higher price point. Compared to rivals like the Porsche Cayenne and BMW X5 M, the SRT offered a more affordable option with comparable performance and a more rugged aesthetic. The 1.8L Automatic trims offered a more economical and practical option, appealing to buyers prioritizing fuel efficiency and affordability over outright performance.
Legacy
The 6.4L HEMI V8 powertrain in the Grand Cherokee SRT has proven to be relatively reliable, with few widespread mechanical issues reported. The eight-speed automatic transmission has also demonstrated good durability. On the used car market, the SRT commands a premium over other Grand Cherokee trims, reflecting its performance capabilities and desirable features. While fuel economy remains a concern for some buyers, the SRT continues to be a popular choice for those seeking a high-performance SUV with a blend of luxury, capability, and American muscle.
