Description
Isuzu 7JK Diesel Engine Assembly Overview
The Isuzu 7JK Diesel Engine Assembly (OEM Part Numbers: 7JK, 4JK1, 8-98000-000-0, 8-98141-200-0) manufactured by Tatan is a 2.499L 4-cylinder turbocharged high-pressure common rail engine belonging to our Diesel Engine Assembly classification. Engineered specifically for Hitachi ZX70-3, ZX75US-3, ZX85USB-3, and Sumitomo SH75X-3 7-to-8 ton compact excavators, replacing your worn engine with a Tatan complete 7JK assembly eliminates machine downtime, excessive blow-by, and severe hydraulic power loss instantly.
Built strictly according to original OEM specifications, this complete engine assembly comes pre-assembled with Denso high-pressure common rail fuel system, turbocharger, starter motor, and alternator, ensuring 100% direct bolt-on fitment with hydraulic pump couplings and mounting brackets.
Key Attributes & Parameters for Isuzu 7JK Diesel Engine Assembly
| Product Category | Diesel Engine Assembly | Warranty | 1 Year / 12 Months |
| Specific Engine Model | Isuzu 7JK / 4JK1 Common Rail Engine | Brand Name | Tatan |
| Compatible Equipment | Hitachi ZX70-3 | Sumitomo SH75X-3 | OEM Part Number | 7JK / 8-98000-000-0 |
| Engine Displacement | 2.499 Liters (2499 cc / 2.5L) | Cylinder Arrangement | 4 Cylinders Inline (I-4) 4-Stroke |
| Horsepower & RPM | 80-120 kW (107-163 HP) @ 2000-3200 | Cooling System | Water-Cooled / Liquid Cooled |
| Fuel Injection System | High-Pressure Common Rail (HPCR) | Aspiration Type | Turbocharged & Charge Air Intercooled |
| Machinery Test Report | Provided (100% Dyno Tested) | Video Outgoing-Inspection | Provided Before Shipping |
| Quality Status | 100% Brand New Engine | Packaging | Export Wooden Box Packaging |
Supported Machinery Brands & Engine Parts Coverage
In addition to Isuzu, Tatan manufactures replacement complete diesel engines and overhaul components for leading machinery brands:
Application Scenarios & Buyer Value
When upgrading or replacing your 7-to-8 ton excavator engine with our Isuzu 7JK Diesel Engine Assembly, buyers achieve maximum operational uptime and power efficiency:
| Application Scenario | Value Delivered to Buyer |
|---|---|
| Hitachi ZX70-3 / Sumitomo SH75 Engine Swap | Complete engine swap cuts machine repair downtime by up to 70% compared to internal rebuilding. |
| Excavator Overhaul Workshops | Eliminates tedious common rail timing, liner honing, and crank fitting; saves mechanic labor hours. |
| Engine Distributors & Stockists | High-demand 2.5L compact excavator engine ready for immediate resale to plant hire fleets and repair networks. |
| Rental Fleet Maintenance | Extends 7-to-8 ton excavator working lifespan and restores full digging hydraulic torque under load. |
Isuzu 7JK Diesel Engine Assembly OEM Diagnostic Guide
Use this OEM manual diagnostic guide to troubleshoot operational engine symptoms on your 7-to-8 ton compact excavator:
| Engine Symptom | Technical Cause Analysis | Tatan Factory-Grade Solution |
|---|---|---|
| 1. Hard starting & Common Rail Pressure Code (P0087/P0088) | Common rail injector back-leakage, SCV valve sticking, or high-pressure fuel pump supply failure. | Replace with Tatan complete 7JK engine assembly featuring pre-calibrated HPCR common rail injection system. |
| 2. Severe power loss & black smoke under heavy digging | Turbocharger actuator failure, intercooler pipe air leak, or clogged common rail fuel injectors. | Inspect turbo boost pressure (>1.2 bar), or swap to a Tatan factory pre-tested 7JK complete engine. |
| 3. High engine oil consumption & heavy crankcase blow-by | Scored 2.5L cylinder liners, stuck oil rings, or valve stem seal wear allowing engine oil into combustion chambers. | Install Tatan new 7JK complete engine; flush engine oil gallery and replace oil filter. |
| 4. Engine overheating & coolant surge into expansion tank | Water pump impeller erosion, clogged radiator core, or cylinder head gasket leaking combustion gas into cooling jacket. | Replace thermostat (82°C), flush cooling system, or swap to a new 7JK complete engine assembly. |
Transport Packaging & Fast Global Shipping
To ensure 100% damage-free international transport, every Tatan Isuzu 7JK engine assembly undergoes anti-rust oiling, waterproof plastic sealing, and solid export wooden box packaging.
✈️ Express Air Courier
Partnered with DHL, FedEx, UPS, and TNT for express door-to-door delivery worldwide.
🚢 Sea Cargo Freight
LCL and FCL ocean container shipping for heavy engine assemblies and bulk orders.
📦 Export Wooden Cases
Fumigated solid wooden boxes with thick shockproof foam lining for maximum safety.
Quality Control & International Certificates
Tatan diesel engines are manufactured under ISO 9001 quality management systems and strictly comply with CE safety standards.
Isuzu 7JK Engine FAQ & Related Categories
* Note: Wholesale Reference Price Starts From $300.00. Please contact Gavin for a final customized quote.
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