What Cars Have A Ka24de Engine

The KA24DE engine, a robust and relatively simple powerplant, has earned a reputation for reliability and tunability within the automotive community. Produced by Nissan from the late 1980s through the early 2000s, this inline-four, 2.4-liter engine found its way into a variety of Nissan vehicles. This article will delve into the specific car models that featured the KA24DE, providing details useful for enthusiasts, mechanics, and those seeking information for maintenance or modification.

Nissan 240SX (S13 and S14 Chassis)

Perhaps the most iconic vehicle associated with the KA24DE is the Nissan 240SX. This rear-wheel-drive sports coupe gained immense popularity amongst drifters, tuners, and everyday drivers due to its balanced chassis, responsive handling, and, of course, the KA24DE engine.

S13 240SX (1989-1994)

The S13 generation of the 240SX, sold from 1989 to 1994 in the US market, exclusively featured the KA24DE. In these models, the engine produced around 140 horsepower and 152 lb-ft of torque. The S13 is easily identified by its pop-up headlights (in the early years) and its generally more angular body lines compared to the later S14.

Important Note: While the S13 was offered in multiple body styles, including a hatchback (fastback) and a coupe, both received the KA24DE engine in the North American market. Japanese and European markets sometimes received different engines in similar chassis, highlighting the importance of verifying engine codes when working on or sourcing parts for vehicles outside of North America.

S14 240SX (1995-1998)

The S14 generation of the 240SX, sold from 1995 to 1998, continued to use the KA24DE, but with some refinements. Power output was slightly increased to around 155 horsepower and 160 lb-ft of torque. The S14 featured a more rounded, streamlined body design compared to the S13. This generation is often divided into "Zenki" (1995-1996) and "Kouki" (1997-1998) models based on differences in the front-end styling.

The S14 240SX, powered by the KA24DE, maintained the car's popularity as a platform for modification and motorsports. Its relatively simple design and readily available aftermarket support made it a favorite for enthusiasts seeking to increase performance.

Nissan Altima (First Generation - 1993-1997)

Beyond the world of sports coupes, the Nissan Altima (first generation, produced from 1993 to 1997) also utilized the KA24DE engine. In the Altima, the engine provided a balance of fuel efficiency and adequate power for daily driving.

In the Altima, the KA24DE was tuned slightly differently than in the 240SX, prioritizing low-end torque for improved drivability in everyday situations. Power output was generally similar, around 150 horsepower.

The Altima's application of the KA24DE demonstrates the engine's versatility. It was capable of providing both sporty performance in the 240SX and reliable transportation in the Altima. This broad appeal contributed to its widespread use and availability of parts.

Nissan Pickup (D21 and D22 Chassis)

The Nissan Pickup truck, known as the D21 and D22 chassis depending on the year and market, also featured the KA24DE engine in certain configurations. This engine choice provided a good balance of power and fuel economy for light-duty truck applications.

D21 Nissan Pickup (Hardbody)

The D21 Nissan Pickup, often referred to as the "Hardbody," used the KA24E (single overhead cam) initially but later adopted the KA24DE in some models. The specific years and trim levels that received the KA24DE vary, so it's crucial to verify the engine code when working on or sourcing parts for these trucks. Generally, later models of the D21, particularly those aimed at providing a slightly more premium experience, were more likely to have the KA24DE.

D22 Nissan Pickup (Frontier)

The D22 Nissan Pickup, known as the Frontier in the US market, also utilized the KA24DE. This application continued the trend of providing a reliable and reasonably powerful engine for light-duty truck tasks. The KA24DE in the Frontier helped to establish the truck's reputation for durability and dependability.

In the Nissan Pickup, the KA24DE was typically tuned to provide ample low-end torque, essential for hauling and towing. While not as powerful as the V6 options offered in the Pickup, the KA24DE provided a fuel-efficient and reliable alternative for those who didn't require maximum towing capacity. Many fleet vehicles and work trucks utilized this configuration due to its longevity and ease of maintenance.

Nissan Axxess

The Nissan Axxess, a minivan sold primarily in the late 1980s and early 1990s, also featured the KA24E, the single-cam predecessor to the KA24DE. While not equipped with the "DE" variant discussed earlier, its inclusion highlights the engine family's breadth of application within the Nissan lineup. Although the KA24E and KA24DE share a similar block, they have significant differences in head design and overall performance characteristics.

Identifying a KA24DE Engine

Visually identifying a KA24DE is relatively straightforward. The most obvious indicator is the presence of a DOHC (Dual Overhead Camshaft) cylinder head. The engine code, "KA24DE," is usually stamped on the engine block, typically near the bellhousing or on the cylinder head. However, this stamp can sometimes be difficult to locate due to dirt or corrosion.

Another distinguishing feature is the valve cover, which will typically have "DOHC 16 VALVE" embossed on it. However, keep in mind that valve covers can be swapped, so relying solely on this visual cue isn't foolproof.

Pro-Tip: When sourcing a KA24DE for a project, always verify the engine code on the block. This is the most reliable way to ensure you're getting the correct engine.

Common KA24DE Issues and Maintenance

The KA24DE is generally a reliable engine, but like any engine, it has its share of common issues. Some of the most frequently encountered problems include:

• Timing Chain Noise: The KA24DE uses a timing chain, which can stretch or wear over time, leading to a rattling noise, particularly on startup. Replacing the timing chain, guides, and tensioner is crucial to prevent more serious engine damage.
• Distributor Issues: The distributor, responsible for firing the spark plugs, can experience problems with its internal components, leading to misfires and poor performance. A worn distributor cap, rotor, or faulty ignition module can all contribute to these issues.
• Oil Leaks: Oil leaks are common, particularly from the valve cover gasket, oil pan gasket, and front main seal. Regular inspection and replacement of these gaskets can help prevent oil loss and potential engine damage.
• Overheating: Although the KA24DE is relatively tolerant, overheating can occur due to a faulty thermostat, a clogged radiator, or a leaking cooling system. Addressing any cooling system issues promptly is vital to prevent head gasket failure or other severe engine damage.

Regular maintenance is key to ensuring the longevity and reliability of the KA24DE. This includes:

• Regular oil changes with the correct type of oil.
• Replacing the air filter and fuel filter at recommended intervals.
• Inspecting and replacing spark plugs as needed.
• Checking and adjusting valve lash (especially on older models).
• Maintaining the cooling system by flushing the coolant and inspecting hoses and clamps.

KA24DE Performance Upgrades

The KA24DE has become a popular engine for performance modifications. Its relatively simple design and robust construction make it a good candidate for upgrades such as:

• Forced Induction (Turbocharging or Supercharging): Adding a turbocharger or supercharger can significantly increase the engine's power output. However, proper tuning and supporting modifications (such as stronger connecting rods and pistons) are essential to prevent engine damage.
• Camshaft Upgrades: Installing aftermarket camshafts with more aggressive profiles can improve airflow and increase horsepower.
• Porting and Polishing the Cylinder Head: Improving the flow characteristics of the cylinder head can enhance engine performance.
• Engine Management System (EMS) Tuning: Using a standalone EMS allows for precise control over fuel and ignition timing, optimizing performance and ensuring engine safety.

The KA24DE is a versatile engine that offers a good balance of reliability, performance, and affordability. Its presence in popular vehicles like the 240SX and Nissan Pickup has solidified its place in automotive history. Understanding the nuances of this engine, its common issues, and its potential for modification is valuable for enthusiasts, mechanics, and anyone working on these vehicles.