The Nissan Frontier III Crew Cab PRO-4X 3.8 V6 4×4 Automatic represents Nissan’s offering in the mid-size pickup truck segment, introduced for the 2021 model year and continuing through August 2024. This variant, positioned as a premium off-road focused trim, builds upon the redesigned third generation Frontier (D023) platform. It aims to provide a blend of capability, comfort, and technology for both work and recreational use, appealing to buyers seeking a versatile and robust truck. The PRO-4X trim specifically targets enthusiasts who require enhanced off-road performance without sacrificing everyday drivability.
Technical Specifications
| Brand | Nissan |
| Model | Frontier |
| Generation | Frontier III Crew Cab |
| Type (Engine) | PRO-4X 3.8 V6 (310 Hp) 4×4 Automatic |
| Start of production | February, 2021 |
| End of production | August, 2024 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Pick-up |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 13.8 l/100 km (17 US mpg, 20.5 UK mpg, 7.2 km/l) |
| Fuel consumption (extra urban) | 10.7 l/100 km (22 US mpg, 26.4 UK mpg, 9.3 km/l) |
| Fuel consumption (combined) | 12.4 l/100 km (19 US mpg, 22.8 UK mpg, 8.1 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Emission standard | Tier 2-Bin5/LEV2-LEV |
| Weight-to-power ratio | 6.9 kg/Hp, 145.1 Hp/tonne |
| Weight-to-torque ratio | 5.6 kg/Nm, 178.4 Nm/tonne |
| Power | 310 Hp @ 6400 rpm |
| Power per litre | 81.6 Hp/l |
| Torque | 381 Nm @ 4400 rpm (281.01 lb.-ft. @ 4400 rpm) |
| Maximum engine speed | 6600 rpm |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | VQ38DD |
| Engine displacement | 3799 cm3 (231.83 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | V-engine |
| Cylinder Bore | 95.5 mm (3.76 in.) |
| Piston Stroke | 88.4 mm (3.48 in.) |
| Compression ratio | 11:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | DOHC |
| Engine oil capacity | 5 l (5.28 US qt | 4.4 UK qt) |
| Coolant capacity | 12 l (12.68 US qt | 10.56 UK qt) |
| Kerb Weight | 2136 kg (4709.07 lbs.) |
| Max. weight | 2727 kg (6012.01 lbs.) |
| Max load | 591 kg (1302.93 lbs.) |
| Fuel tank capacity | 79 l (20.87 US gal | 17.38 UK gal) |
| Permitted trailer load with brakes (12%) | 2844 kg (6269.95 lbs.) |
| Permitted towbar download | 284 kg (626.11 lbs.) |
| Length | 5339 mm (210.2 in.) |
| Width | 1897 mm (74.69 in.) |
| Height | 1852 mm (72.91 in.) |
| Wheelbase | 3200 mm (125.98 in.) |
| Ride height (ground clearance) | 239 mm (9.41 in.) |
| Minimum turning circle | 12.9 m (42.32 ft.) |
| Approach angle | 32.3° |
| Departure angle | 23° |
| Ramp-over angle | 19.6° |
| Drivetrain Architecture | All wheel drive (4×4). ICE drives rear wheels, front wheels engaged via clutch. |
| Number of gears | 9 |
| Gearbox type | Automatic transmission |
| Front suspension | Double wishbone, Transverse stabilizer |
| Rear suspension | Rigid axle suspension, Transverse stabilizer, Leaf spring |
| Front brakes | Ventilated discs, 297×28 mm |
| Rear brakes | Ventilated discs, 287×18 mm |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Hydraulic Steering |
| Tires size | 265/70 R17 |
| Wheel rims size | 17 |
Powertrain & Engine Architecture
The PRO-4X is powered by Nissan’s 3.8-liter VQ38DD V6 engine. This engine, a mainstay in Nissan’s lineup, is known for its durability and relatively smooth power delivery. The VQ38DD utilizes direct fuel injection and a dual overhead camshaft (DOHC) valvetrain with four valves per cylinder. The engine produces 310 horsepower at 6400 rpm and 381 Nm (281 lb-ft) of torque at 4400 rpm. The engine is longitudinally mounted, contributing to a more balanced weight distribution. Paired with the engine is a 9-speed automatic transmission, replacing the older 7-speed unit in previous Frontier generations. This transmission offers improved shift smoothness and a wider gear ratio spread for better fuel economy and towing capability. The transmission is electronically controlled, adapting to driving conditions and driver input.
Driving Characteristics
The 9-speed automatic transmission in the PRO-4X is tuned for a balance between responsiveness and efficiency. While not as aggressively geared as some performance-oriented trucks, it provides adequate acceleration for everyday driving and highway merging. The wider gear ratios contribute to improved fuel economy compared to the previous generation. Compared to a manual transmission equipped Frontier, the automatic offers greater convenience, particularly in stop-and-go traffic. However, it may feel slightly less engaging for drivers who prefer more control over gear selection. The PRO-4X’s off-road focused suspension and all-wheel-drive system provide confident handling on varied terrain, though the leaf spring rear suspension can result in a somewhat firm ride when unladen.
Equipment & Trim Levels
The PRO-4X trim level is well-equipped, offering a comprehensive suite of features as standard. Interior appointments include cloth or available leather upholstery, with unique PRO-4X badging and accents. Standard features include a 9-inch touchscreen infotainment system with Apple CarPlay and Android Auto compatibility, a navigation system, and a premium audio system. Safety features such as automatic emergency braking, lane departure warning, and blind-spot monitoring are also standard. Optional extras include a sunroof, heated and ventilated front seats, and a surround-view camera system.
Chassis & Braking
The Frontier PRO-4X utilizes a body-on-frame construction, providing a robust and durable platform for off-road use. The suspension features double wishbones at the front and a solid axle with leaf springs at the rear. The PRO-4X benefits from Bilstein off-road shock absorbers, which enhance damping performance and control on rough terrain. Braking duties are handled by ventilated disc brakes at all four corners, providing ample stopping power. The anti-lock braking system (ABS) is standard, enhancing safety and stability during emergency braking maneuvers. The PRO-4X also features a locking rear differential, improving traction in challenging off-road conditions.
Market Reception & Comparison
The 2021+ Nissan Frontier PRO-4X was generally well-received by automotive critics, praised for its improved interior, updated technology, and capable off-road performance. However, its fuel economy was often cited as a weakness compared to some competitors. Compared to other Frontier trims, the PRO-4X represents the premium end of the lineup, offering a more refined driving experience and a greater level of standard equipment. Compared to rivals like the Toyota Tacoma TRD Off-Road and the Chevrolet Colorado ZR2, the Frontier PRO-4X offers a competitive blend of features and capability, often at a slightly lower price point.
Legacy
The VQ38DD engine has proven to be a reliable and durable powerplant in various Nissan vehicles. While long-term reliability data for the third-generation Frontier is still emerging, the engine’s established track record suggests it should provide years of dependable service. The 9-speed automatic transmission, while newer, has also demonstrated reasonable reliability. On the used car market, the Frontier PRO-4X is expected to hold its value well due to its desirable features and off-road capability. Its combination of practicality, durability, and capability makes it a compelling choice for buyers seeking a mid-size pickup truck.
