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Overview

The KA24 is a 2.4-liter (2,388 cc) inline-4 cylinder gasoline engine produced by Nissan. It's an evolution of the earlier Z-series engines and was widely used in Nissan's trucks, SUVs, and passenger cars throughout the 1990s and 2000s.

The Paladin's specific version, often designated as KA24E, features a 12-valve cylinder head (2 intake valves, 1 exhaust valve per cylinder) and multi-point fuel injection (MPFI). This engine is renowned for its simple, robust construction and excellent reliability, making it a favorite in off-road and commercial applications.

Key Technical Specifications

Specification Detail

Engine Model       KA24 / KA24E

Displacement       2.4 L (2,388 cc / 146 cu in)

Configuration       Inline-4, naturally aspirated

Valvetrain       SOHC (Single Overhead Camshaft), 12 valves (3 per cylinder: 2 intake, 1 exhaust)

Fuel System       Multi-point fuel injection (MPFI)

Compression Ratio     8.6:1 – 9.2:1 (varies by application)

Max Power       ~110 kW (approx. 150 hp) @ 4,800 – 5,600 rpm

Max Torque      ~208 N⋅m (approx. 153 lb-ft) @ 3,600 rpm

Block Material Cast iron

Head Material Aluminum alloy

Fuel Requirement 87 octane (Regular unleaded, equivalent to China RON 92)

Emissions Standard Euro IV / Euro V (depending on year of manufacture)

Key Characteristics

Legendary Reliability & Durability

The KA24 is famous for its "bulletproof" reputation. Its cast-iron block and simple, low-stress design allow it to run for hundreds of thousands of kilometers with minimal issues. Many owners report trouble-free operation well beyond 200,000 km. This is the engine's greatest selling point.

Strong Low-End Torque

The engine is tuned for low-to-mid range torque, which is ideal for off-road driving, climbing, and towing. Power comes in early and smoothly, making the vehicle feel responsive in city traffic and on rough terrain. It's a "torque over horsepower" design.

Undemanding & Low Maintenance

With its multi-port fuel injection system, it can run on regular 87-octane gasoline. The simple, proven technology means parts are widely available and cheap, and repairs are straightforward.

Smooth Operation

It features a dual counter-rotating balance shaft system that effectively cancels out the inherent secondary vibrations of an inline-4 engine, resulting in a smoother ride than many of its contemporaries.