The Nissan Frontier I Regular Cab (D22) 2.4, produced from 1998 to 2000, represents Nissan’s entry into the North American compact pickup truck market. This generation Frontier, designated the D22 chassis code, was a significant departure from the previous Nissan compact trucks (like the Hardbody) offering a more modern design and increased refinement. The 2.4-liter engine, paired with a five-speed manual transmission and four-wheel drive, positioned this variant as a work-focused, budget-friendly option within the Frontier lineup. It served as the base model, appealing to buyers prioritizing utility and affordability over outright performance or luxury. The D22 platform was a global design, also sold under different names in various markets, but the 2.4L 4WD configuration was particularly relevant to the North American market where a capable and affordable pickup was in demand.
Technical Specifications
| Brand | Nissan |
| Model | Frontier |
| Generation | Frontier I Regular Cab (D22) |
| Type (Engine) | 2.4 (143 Hp) 4WD |
| Start of production | 1998 |
| End of production | 2000 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Pick-up |
| Seats | 2-3 |
| Doors | 2 |
| Fuel consumption (urban) | 14.7 l/100 km (16 US mpg, 19.2 UK mpg, 6.8 km/l) |
| Fuel consumption (extra urban) | 12.3 l/100 km (19.1 US mpg, 23 UK mpg, 8.1 km/l) |
| Fuel consumption (combined) | 13.8 l/100 km (17 US mpg, 20.5 UK mpg, 7.2 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Power | 143 Hp @ 5200 rpm |
| Power per litre | 59.9 Hp/l |
| Torque | 209 Nm @ 4000 rpm (154.15 lb.-ft. @ 4000 rpm) |
| Engine Model/Code | KA24DE |
| Engine displacement | 2389 cm3 (145.79 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 89 mm (3.5 in.) |
| Piston Stroke | 96 mm (3.78 in.) |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Engine oil capacity | 3.9 l (4.12 US qt, 3.43 UK qt) |
| Coolant capacity | 9.3 l (9.83 US qt, 8.18 UK qt) |
| Max. weight | 2354 kg (5189.68 lbs.) |
| Fuel tank capacity | 60 l (15.85 US gal, 13.2 UK gal) |
| Permitted trailer load with brakes (12%) | 1588 kg (3500.94 lbs.) |
| Permitted towbar download | 159 kg (350.53 lbs.) |
| Length | 4681 mm (184.29 in.) |
| Width | 1826 mm (71.89 in.) |
| Height | 1679 mm (66.1 in.) |
| Wheelbase | 2649 mm (104.29 in.) |
| Front track | 1524 mm (60 in.) |
| Rear track | 1506 mm (59.29 in.) |
| Ride height (ground clearance) | 175 mm (6.89 in.) |
| Minimum turning circle | 10.1 m (33.14 ft.) |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 5 gears, manual transmission |
| Front suspension | Double wishbone |
| Rear suspension | Leaf spring |
| Tires size | 215/75 R15; 235/75 R15 |
| Wheel rims size | 7.0J x 15 |
Powertrain & Engine Architecture
The heart of the D22 2.4 4WD is the KA24DE engine, a 2.4-liter inline-four cylinder gasoline engine. This engine is a naturally aspirated design, utilizing multi-port fuel injection for precise fuel delivery. The KA24DE is known for its relative simplicity and durability, though it isn’t a powerhouse in terms of output. The engine features a single overhead camshaft (SOHC) valvetrain with two valves per cylinder. The 143 horsepower peak is reached at 5200 rpm, while the 209 Nm (154 lb-ft) of torque is available at 4000 rpm. Paired with the engine is a robust five-speed manual transmission, chosen for its durability and suitability for work applications. The four-wheel drive system is a part-time system, typically engaged via a lever or button, allowing the driver to switch between 2WD and 4WD modes as needed.
Driving Characteristics
The 2.4-liter engine and five-speed manual combination in the Frontier D22 delivers adequate, but not exhilarating, performance. Acceleration is modest, and the truck feels most comfortable at lower speeds. The gear ratios are tuned for utility, prioritizing low-end torque for hauling and navigating rough terrain. Compared to the later, more powerful V6 options available on the Frontier, the 2.4 feels noticeably underpowered, especially when fully loaded or climbing steep hills. The manual transmission provides a more engaging driving experience than the optional automatic, offering greater control and responsiveness. However, the clutch engagement is relatively soft, and the shift quality is not as precise as some contemporary trucks. The 4WD system provides good traction in off-road conditions, but it lacks the sophistication of more modern systems.
Equipment & Trim Levels
The base-level Frontier 2.4 4WD was typically sparsely equipped, reflecting its position as the entry-level model. Standard features generally included a basic AM/FM radio, vinyl upholstery, and manual windows and locks. Air conditioning was often an optional extra. The interior was functional and durable, designed to withstand the rigors of work-truck use. Higher trim levels, such as the SE and King Cab models, offered upgrades like cloth upholstery, power windows and locks, and a more comprehensive audio system. However, the 2.4-liter engine was rarely paired with the higher trim levels, as buyers opting for more features typically chose the more powerful V6 engine.
Chassis & Braking
The D22 Frontier utilizes a body-on-frame construction, providing a robust and durable platform. The front suspension consists of double wishbones, while the rear suspension employs leaf springs. This setup prioritizes load-carrying capacity and durability over ride comfort. Braking duties are handled by disc brakes in the front and drum brakes in the rear. The braking system is adequate for normal use, but it lacks the stopping power of more modern trucks. The relatively narrow tires (typically 215/75 R15 or 235/75 R15) contribute to a somewhat basic ride quality, but they also provide good traction in a variety of conditions.
Market Reception & Comparison
The Nissan Frontier D22 2.4 4WD was generally well-received as a capable and affordable compact pickup truck. Critics praised its durability and practicality, but noted its lack of refinement and modest performance. Compared to the V6-powered Frontier models, the 2.4 offered significantly lower fuel economy (around 17 mpg combined) and slower acceleration. However, it was also considerably more affordable, making it an attractive option for budget-conscious buyers. Competitors in this segment included the Ford Ranger, Chevrolet S-10, and Toyota Tacoma. The Frontier offered a compelling alternative, particularly for those seeking a reliable and durable truck for work or light off-road use.
Legacy
The KA24DE engine, while not known for being particularly exciting, proved to be a reliable and durable powerplant. Many examples of the D22 Frontier 2.4 4WD are still on the road today, a testament to its robust construction. The engine is relatively easy to maintain, and parts are readily available. However, like any older vehicle, these Frontiers are prone to rust and wear and tear. On the used car market, these trucks typically command lower prices than the V6-powered models, making them an affordable entry point into the world of pickup trucks. The D22 Frontier laid the groundwork for the more refined and capable second-generation Frontier, establishing Nissan as a serious contender in the North American pickup truck market.
