Isuzu 4HK1 4-cylinder diesel engine, Hitachi ZX200 excavator, industrial machinery powertrain
The Isuzu 4HK1 is a widely used medium-duty diesel engine featuring turbocharging, intercooling, and electronic common rail injection, delivering high torque, fuel efficiency, and reliability for truck and industrial applications.
4HK1 Diesel Engine Specifications
| Number of Cylinders |
4 |
| Displacement |
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| Bore × Stroke |
115 mm × 125 mm |
| Power Output |
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| Speed |
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| Weight |
Approx. 572 kg |
| Dimensions |
120 cm × 97 cm × 125 cm |
Features and Advantages
- Powerful Performance: Turbocharging + intercooling for high torque at low RPMs.
- Efficient Fuel: Common rail injection for low fuel consumption and high efficiency.
- Durable and Reliable: Inline four-cylinder cast iron block for stability and durability.
- Easy Maintenance: OEM size, long maintenance intervals, and readily available parts.
Product Showcase
Close-up of Isuzu 4HK1 Common Rail Fuel Injection System
Standard Kit and Parts List
Core Engine Assembly Components: Cylinder block, cylinder head, crankshaft, connecting rods, piston assembly, turbocharger, intercooler, high-pressure common rail fuel system, water pump, oil pump, intake and exhaust manifolds.
Wear Parts/Optional Accessories: Oil filter, air filter, diesel filter, fuel injector assembly, timing belt/chain, turbocharger repair kit, main/connecting rod bearings, piston rings, etc.


Frequently Asked Questions
Q1: What is your main products?
A1: We are specialized in the excavator engine spare parts, for example Main cylinder block, cylinder head, crankshaft, Engine assembly, piston, cylinder liner, piston ring, camshaft, connecting rod, oil pump, water pump, valve series products, movement, etc. almost all parts of the entire engine.
Q2: Do you test all products before shipping?
A2: Yes, we conduct 100% testing before shipping.
Q3: If I only know the excavator model, but can not offer parts No., what should I do?
A3: If possible, you can send us pictures of old products, name plate or the size for reference.
Q4: Do you test all your goods before delivery?
A4: Yes, we have 100% test before delivery.
Q5: How can I confirm that the purchased 4HK1 engine is compatible with the original vehicle?
A5: Please provide the original engine model or chassis number. We can match OEM or equivalent replacement parts.
Q6: What are some common problems with the Isuzu 4HK1 diesel engine?
A6: The Isuzu 4HK1 is robust, but like all diesel engines, proper maintenance is essential to prevent issues with the injectors, EGR, or turbocharger.
Why Choose Us?
- Over 20 years of focus on construction machinery – offering a full range of excavator assemblies and accessories.
- Get a Quote – Our professional team will provide you with a quote immediately upon receiving your requirements.