The Fiat Fullback Double Cab SX 2.4d AWD, launched in 2017, represents Fiat’s entry into the one-tonne pickup truck segment. Developed in collaboration with Mitsubishi Motors, the Fullback is essentially a rebadged version of the Mitsubishi Triton. This particular SX variant, powered by a 2.4-liter diesel engine producing 154 horsepower, was positioned as a mid-range offering within the Fullback lineup, aimed at buyers seeking a balance between work capability and everyday usability. It served as a competitor to established players like the Toyota Hilux, Nissan Navara, and Ford Ranger, primarily targeting markets outside of North America where Fiat had a stronger presence.
Technical Specifications
| Brand | Fiat |
| Model | Fullback |
| Generation | Fullback Double Cab |
| Type (Engine) | SX 2.4d (154 Hp) AWD |
| Start of production | 2017 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Pick-up |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (combined) | 6.9-7.1 l/100 km (34.1 – 33.1 US mpg, 40.9 – 39.8 UK mpg, 14.5 – 14.1 km/l) |
| CO2 emissions | 180-187 g/km |
| Fuel Type | Diesel |
| Maximum speed | 169 km/h (105.01 mph) |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 12.1 kg/Hp, 82.4 Hp/tonne |
| Weight-to-torque ratio | 4.9 kg/Nm, 203.2 Nm/tonne |
| Power | 154 Hp @ 3500 rpm |
| Power per litre | 63.1 Hp/l |
| Torque | 380 Nm @ 1500-2500 rpm (280.27 lb.-ft. @ 1500-2500 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | 4N15 |
| Engine displacement | 2442 cm3 (149.02 cu. in.) |
| Engine configuration | Inline |
| Fuel injection system | Diesel Commonrail |
| Engine aspiration | Turbocharger, Intercooler |
| Engine oil capacity | 8.3 l (8.77 US qt | 7.3 UK qt) |
| Coolant | 7.7 l (8.14 US qt | 6.78 UK qt) |
| Kerb Weight | 1870 kg (4122.64 lbs.) |
| Max. weight | 2900 kg (6393.41 lbs.) |
| Max load | 1030 kg (2270.76 lbs.) |
| Fuel tank capacity | 75 l (19.81 US gal | 16.5 UK gal) |
| Permitted trailer load with brakes (12%) | 3100 kg (6834.33 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Permitted towbar download | 75 kg (165.35 lbs.) |
| Length | 5225 mm (205.71 in.) |
| Width | 1785 mm (70.28 in.) |
| Height | 1775 mm (69.88 in.) |
| Wheelbase | 3000 mm (118.11 in.) |
| Front track | 1520 mm (59.84 in.) |
| Rear (Back) track | 1515 mm (59.65 in.) |
| Front overhang | 885 mm (34.84 in.) |
| Rear overhang | 1340 mm (52.76 in.) |
| Minimum turning circle | 11.8 m (38.71 ft.) |
| Approach angle | 30° |
| Departure angle | 22° |
| Ramp-over angle | 24° |
| Climb angle | 45° |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 6 gears, manual transmission |
| Front suspension | Double wishbone |
| Rear suspension | Torsion |
| Front brakes | Ventilated discs |
| Rear brakes | Drum |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Wheel rims size | 16 |
Powertrain & Engine Architecture
The heart of the Fullback SX 2.4d is the 4N15 2.4-liter inline-four diesel engine. This engine, developed by Mitsubishi, is a robust and relatively simple design, prioritizing durability and low-end torque over outright horsepower. It utilizes a common-rail direct injection system, delivering fuel at extremely high pressure for efficient combustion. A turbocharger with an intercooler further enhances performance, boosting power and torque output. The engine’s 154 horsepower peak arrives at 3500 rpm, but its 380 Nm (280 lb-ft) of torque, available from a low 1500 rpm, is the key to its usability. The SX model was exclusively offered with a six-speed manual transmission, chosen for its durability and driver control. The transmission’s gear ratios are geared towards maximizing torque delivery for hauling and towing, rather than providing sporty acceleration.
Driving Characteristics
The Fullback SX 2.4d AWD delivers a practical, rather than exhilarating, driving experience. The engine’s strong low-end torque makes it well-suited for carrying heavy loads or towing trailers. Acceleration is adequate, but not particularly quick. The six-speed manual transmission allows for precise control, but the shift quality can feel somewhat notchy compared to more refined transmissions. The suspension, tuned for load-carrying, provides a comfortable ride when unladen, but can become somewhat bouncy when the bed is fully loaded. The four-wheel-drive system offers selectable modes, allowing drivers to switch between two-wheel drive for fuel efficiency and four-wheel drive for improved traction in challenging conditions.
Equipment & Trim Levels
The SX trim level of the Fullback Double Cab offered a good balance of features and affordability. Standard equipment typically included air conditioning, power windows, central locking, and a basic audio system with USB connectivity. Safety features such as ABS brakes and driver/passenger airbags were also standard. Interior appointments were functional and durable, with hard-wearing plastics and cloth upholstery. Optional extras could include alloy wheels, a reversing camera, and a more advanced infotainment system. The Double Cab configuration provided seating for five passengers, making it a versatile option for both work and family use.
Chassis & Braking
The Fullback Double Cab utilizes a body-on-frame construction, providing a robust and durable platform for demanding applications. The front suspension consists of double wishbones, while the rear suspension employs a torsion beam setup. This configuration balances ride comfort with load-carrying capacity. The braking system features ventilated discs at the front and drum brakes at the rear. While adequate for most applications, the rear drum brakes are a cost-saving measure compared to the disc brakes found on some competitors. The steering is rack-and-pinion with electric power assistance, providing a reasonable level of precision and ease of use.
Market Reception & Comparison
The Fiat Fullback received generally positive reviews for its practicality, durability, and competitive pricing. Critics praised its strong diesel engine and capable four-wheel-drive system. However, some reviewers noted that the interior felt somewhat dated compared to more modern pickups, and the ride quality could be improved. Compared to other trims in the Fullback lineup, the SX 2.4d AWD offered a good balance between performance and fuel economy. The higher-powered versions provided more acceleration, but at the expense of fuel efficiency. The lower-powered models were more affordable, but lacked the torque needed for demanding tasks.
Legacy
The Fiat Fullback, while not a long-term success for Fiat, remains a viable option in the used pickup truck market. The 4N15 diesel engine is known for its reliability and longevity, provided it is properly maintained. Common issues include turbocharger wear and potential problems with the fuel injection system. The manual transmission is generally robust, but regular servicing is essential. As a used vehicle, the Fullback SX 2.4d AWD offers a practical and affordable solution for buyers seeking a capable and durable pickup truck. Its simple construction and readily available parts make it relatively easy to maintain and repair, ensuring its continued presence on roads for years to come.
