The 4HL engine is a 4-cylinder inline diesel engine that is Isuzu's mainstay for light to medium-duty trucks, known for its efficiency and reliability in its class.
1. Type and Configuration: 4-stroke, 4-cylinder in-line diesel engine with SOHC (Single Overhead Camshaft) 16-valve configuration.
2. Capacity (Displacement): Approximately 4,778 cc (4.8 liters).
3. Combustion System: Uses electronically controlled High-Pressure Common Rail Direct Injection (CRDI) for optimal efficiency.
4. Air Induction: Equipped with a Turbocharger (often with an Intercooler), designed to improve response and performance at low revs.
5. Power and Torque Output: Has several output variants. Common examples are: - Maximum Power: Approximately 131 PS (96 kW) to 150 PS (110 kW) at 2,600 rpm. - Maximum Torque: Approximately 375 Nm to 402 Nm at 1,100 to 2,600 rpm.
This engine is the core of Isuzu's light to medium-duty truck lineup, particularly the Isuzu N-Series or better known as Isuzu ELF (NPR/NQR), which is used for urban logistics, regional delivery, and light dump truck needs.
Dimensions and Weight: Being a 4-cylinder engine, it is more compact than the 6HK1, allowing it to be installed in trucks with smaller cabs (light to medium-duty).
