4HK1 Diesel Engine Mid Cylinder Block Isuzu 4HK1 Heavy Duty Excavator Engine Part
Product Details
| Includes: | Pistons, Rings, Bearings, Gaskets, Seals | Port: | Guangzhou |
|---|---|---|---|
| Model: | OTHER | Condition: | New |
| Selling Units: | 6 Set | Stock: | In Stock |
| Delivery Period: | 1-7 Work Days | Items Included: | Gasket |
| Durability: | Designed For Long-lasting Performance | Manufacturing Process: | Precision Machined & Heat Treated |
| Enginetype: | Suitable For Gasoline And Diesel Engines | Part Usage: | Engine Power Transmission Component |
| Key Performance: | Wear Resistant, Anti-Crack, Anti-Fatigue | ||
| Highlight |
Isuzu 4HK1 diesel engine block,4HK1 heavy duty excavator engine,Isuzu 4HK1 engine overhaul part |
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Product Description
| English Parameter | Specification |
|---|---|
| Product Name | 4HK1 Diesel Engine Mid Cylinder Block |
| Compatible Engine | Isuzu 4HK1 Diesel Engine |
| Applicable Machine | 20-ton Excavators (ZX200-3, SH200-5 etc.) |
| Cylinder Number | 4 Cylinders |
| Cylinder Bore | 115mm |
| Main Material | High-strength Alloy Cast Iron |
| Machining Accuracy | CNC Precision Boring |
| Mounting Standard | 1:1 OEM Original Dimension |
| Application | Engine Overhaul, Construction Machinery |
- High-strength alloy cast iron, high rigidity, no deformation under high load
- CNC precision boring, accurate cylinder diameter, perfect piston match
- Integrated cooling & oil passage, tight sealing, no leakage
- 1:1 OEM size, direct installation, no secondary processing
- Pre-installed cylinder liners, ready for engine assembly
- High temperature & wear resistant, long service life
- Restores original engine power and stable performance
Working Principle
The cylinder block is the core base of the diesel engine. It houses cylinder liners, pistons and crankshaft mechanism, and forms combustion chambers with the cylinder head. It supports piston connecting rod reciprocation, integrates cooling water jacket and lubricating oil passage, ensuring normal engine operation and stable power output.
Production Process
Raw Material Smelting → Sand Mold Casting → Aging Stress Relief → CNC Rough Machining → Cylinder Bore Fine Boring → Plane Grinding → Liner Press-fitting → Hydraulic Pressure Test → Dimensional Inspection → Anti-rust Treatment → Export Packaging → Delivery
Company Service
We are a professional manufacturer and exporter of diesel engine spare parts. We supply 4HK1 cylinder block, cylinder head, crankshaft, piston and full Isuzu engine parts. All products meet OEM standards with sufficient stock for fast global shipping. We support sample orders, small batch trials and bulk wholesale. Provide pre-sales model matching, technical guidance and long-term warranty.
FAQ
Q1: Which engines and machines does this 4HK1 cylinder block fit?
A1: It fits Isuzu 4HK1 diesel engines, widely used in Hitachi ZX200-3, Sumitomo SH200-5 and other 20-ton excavators.
Q2: What faults indicate the need to replace the cylinder block?
A2: Engine power loss, excessive oil burning, coolant leakage, cylinder crack and severe liner wear.
Q3: Does this mid cylinder block come with cylinder liners?
A3: Yes, it is pre-installed with cylinder liners, ready for further engine assembly.
Q4: Does it pass leakage test before delivery?
A4: Yes, each block passes 3.5MPa hydraulic pressure test to ensure no coolant and oil leakage.
Q5: Do you support bulk wholesale for repair workshops?
A5: Yes, we support bulk orders for repair workshops and engineering fleets with competitive quotation.
Product Highlights
4HK1 Diesel Engine Mid Cylinder Block for Isuzu 4HK1 engines in 20-ton excavators. Made from high-strength alloy cast iron with CNC precision boring, wear resistant, anti-crack, anti-fatigue. 1:1 OEM size, pre-installed liners, direct installation. Restores original engine power and stable performance.
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