Isuzu 5.2 4HK1 Engine For Sale
The Isuzu 5.2L 4HK1 turbo diesel engine is a heavy duty 4 cylinder power unit built for medium trucks, buses and industrial applications. With a 5,193 cc displacement, common rail direct injection and a VGS turbocharger with intercooler, the 4HK1 delivers strong low rpm torque, good fuel efficiency and long service life. It is widely used in Isuzu N Series and F Series trucks and is known for dependable performance in demanding commercial work. ISUZU ENGINE+1
Key Features
5.2L Inline 4 Diesel Engine
5,193 cc 4 cylinder in line layout with a bore and stroke of 115 mm x 125 mm, designed for medium duty truck and bus applications.
Common Rail Direct Injection
High pressure common rail fuel system provides efficient combustion, improved fuel economy and reduced emissions compared to older mechanical injection designs.
VGS Turbocharger With Intercooler
Variable geometry turbo and air to air intercooler give strong boost from low engine speeds, supporting good low end torque and stable pulling power under load.
Strong Power And Torque Output
Depending on the exact 4HK1 variant, typical maximum output is around 140 kW to 150 kW (about 190 hp to 205 hp) with torque in the region of 500 Nm to just over 510 Nm, ideal for loaded trucks and municipal vehicles.
Durable Commercial Grade Build
Cast iron block, 16 valve head and robust internal components are designed for high mileage use in fleets, with engines commonly used in medium duty trucks, buses and construction equipment.
Performance & Applications
The Isuzu 5.2L 4HK1 engine is factory fitted and widely used in medium duty commercial vehicles and equipment, including:
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Isuzu N Series medium trucks using 4HK1 TCN and related variants
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Isuzu F Series medium duty trucks and chassis cabs in various wheelbase and body configurations
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Medium duty buses and intercity buses that share the 4HK1 powertrain
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Construction machinery such as excavators and loaders, and generator sets in the 50 to 150 kW range
In real world service, the 4HK1 engine is well suited to:
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Regional and urban delivery trucks
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Municipal, refuse and service vehicles
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Construction support trucks and site vehicles
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Fleet and owner driver applications where uptime and fuel economy matter
Why Choose the Isuzu 5.2L 4HK1 Engine?
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Strong low end torque for loads, gradients and stop start city driving
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Proven common rail turbo diesel design used widely in N Series and F Series trucks
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Good balance of power and fuel consumption for medium duty operations
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Robust build that supports high mileage and long service intervals when maintained correctly
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Flexible use across trucks, buses and industrial equipment, making parts and knowledge easy to source
Conclusion
The Isuzu 5.2L 4HK1 turbo diesel engine is a solid medium duty powerplant with the torque, efficiency and durability required for commercial work. With its 5.2 litre common rail design, VGS turbocharger and strong real world track record in N Series and F Series trucks, it is a dependable choice as a replacement engine for fleets, workshops and operators who need a reliable unit for everyday use.
