Description
Cummins 6CT8.3 Diesel Engine Assembly Overview
The Cummins 6CT8.3 Diesel Engine Assembly (OEM Part Numbers: 6CT8.3, 6CTA8.3, 3928160, 4089759) manufactured by Tatan is an 8.27L 6-cylinder turbocharged water-cooled engine belonging to our Diesel Engines & Engine Assemblies classification. Engineered specifically for Komatsu PC300-6, PC300-7, PC350-6, Hyundai R300-5, and R305-7 30-to-35 ton excavators, replacing your worn engine with a Tatan complete 6CT8.3 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 mechanical Bosch P7100/PE fuel injection pump, Holset turbocharger, starter motor, and alternator, ensuring 100% direct bolt-on fitment with hydraulic pump couplings and mounting brackets.
Key Attributes & Parameters for Cummins 6CT8.3 Diesel Engine Assembly
| Product Category | Diesel Engines & Assemblies | Warranty | 1 Year / 12 Months |
| Specific Engine Model | Cummins 6CT8.3 / 6CTA8.3 Engine | Brand Name | Tatan |
| Compatible Equipment | Komatsu PC300-6 | Hyundai R300-5 | OEM Part Number | 6CT8.3 / 3928160 |
| Engine Displacement | 8.27 Liters (8270 cc / 8.3L) | Cylinder Arrangement | 6 Cylinders Inline (I-6) 4-Stroke |
| Horsepower & RPM | 150-194 kW (200-260 HP) @ 2200-2500 | Cooling System | Water-Cooled / Liquid Cooled |
| Machinery Test Report | Provided (100% Dyno Tested) | Video Outgoing-Inspection | Provided Before Shipping |
| Aspiration Type | Turbocharged & Charge Air Aftercooled | Place of Origin | Guangdong, China |
| Quality Status | 100% Brand New Engine | Packaging | Export Wooden Box Packaging |
Supported Machinery Brands & Engine Parts Coverage
In addition to Cummins, Tatan manufactures replacement complete diesel engines and overhaul components for leading machinery brands:
Application Scenarios & Buyer Value
When upgrading or replacing your 30-to-35 ton excavator engine with our Cummins 6CT8.3 Diesel Engine Assembly, buyers achieve maximum operational uptime and power efficiency:
| Application Scenario | Value Delivered to Buyer |
|---|---|
| Komatsu PC300-6 / Hyundai R300 Engine Swap | Complete engine swap cuts machine repair downtime by up to 70% compared to internal rebuilding. |
| Excavator Overhaul Workshops | Eliminates tedious line-boring, sleeve honing, and crank fitting; saves mechanic labor hours. |
| Engine Distributors & Stockists | High-demand 8.3L 30-ton heavy excavator engine ready for immediate resale to plant hire fleets and mining networks. |
| Rental Fleet Maintenance | Extends 30-to-35 ton excavator working lifespan and restores full digging hydraulic torque under load. |
Cummins 6CT8.3 Diesel Engine Assembly OEM Diagnostic Guide
Use this OEM manual diagnostic guide to troubleshoot operational engine symptoms on your 30-ton heavy excavator:
| Engine Symptom | Technical Cause Analysis | Tatan Factory-Grade Solution |
|---|---|---|
| 1. Hard cold starting & dense white smoke | Mechanical fuel injection pump timing retarded or low compression (<2.8 MPa) in 6 cylinders due to piston ring wear. | Adjust Bosch P7100 pump timing or replace with Tatan complete 6CT8.3 engine assembly. |
| 2. Severe power drop & dense black smoke under digging load | Holset turbocharger wastegate failure leading to low boost (<1.2 bar) or fuel injection pump governor spring fatigue. | Inspect turbocharger boost pressure or swap to a Tatan factory pre-tested 6CT8.3 engine assembly. |
| 3. High engine oil consumption & heavy crankcase blow-by | Scored 8.3L cylinder liners, stuck oil rings, or valve stem seal wear allowing engine oil into combustion chambers. | Install Tatan new 6CT8.3 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 6CT8.3 complete engine assembly. |
Transport Packaging & Fast Global Shipping
To ensure 100% damage-free international transport, every Tatan Cummins 6CT8.3 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.
Cummins 6CT8.3 Engine FAQ & Related Spare Parts
* Note: Wholesale Reference Price Starts From $300.00. Please contact Gavin for a final customized quote.
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