Description
CAT C18 Diesel Engine Assembly Overview
The CAT C18 Diesel Engine Assembly (OEM Part Numbers: C18, C18 ACERT, 284-2719, 10R-3264, 317-2308) manufactured by Tatan is an 18.1L 6-cylinder series turbocharged water-cooled ACERT engine belonging to our Diesel Engine Assembly classification. Engineered specifically for Caterpillar CAT 385C, 385C L, 390D, and 390D L 85-to-90 ton heavy mining excavators, replacing your worn engine with a Tatan complete C18 ACERT 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 MEUI electronic unit injectors, high-pressure fuel actuation system, ADEM A4/A5 ECU harness, twin turbochargers, starter motor, and alternator, ensuring 100% direct bolt-on fitment with hydraulic pump couplings and mounting brackets.
Key Attributes & Parameters for CAT C18 Diesel Engine Assembly
| Product Category | Diesel Engine Assembly | Warranty | 1 Year / 12 Months |
| Specific Engine Model | CAT C18 / C18 ACERT Engine | Brand Name | Tatan |
| Compatible Equipment | Caterpillar CAT 385C | CAT 390D | OEM Part Number | C18 / 284-2719 |
| Engine Displacement | 18.1 Liters (18100 cc / 18.1L) | Cylinder Arrangement | 6 Cylinders Inline (I-6) 4-Stroke |
| Horsepower & RPM | 429-597 kW (575-800 HP) @ 1800-2100 | Cooling System | Water-Cooled / Liquid Cooled |
| Fuel Injection System | MEUI Mechanical Electronic Unit Injector | Aspiration Type | Series Turbocharged (Twin Turbo) & ATAAC |
| 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 Caterpillar, Tatan manufactures replacement complete diesel engines and overhaul components for leading machinery brands:
Application Scenarios & Buyer Value
When upgrading or replacing your 85-to-90 ton heavy mining excavator engine with our CAT C18 Diesel Engine Assembly, buyers achieve maximum operational uptime and power efficiency:
| Application Scenario | Value Delivered to Buyer |
|---|---|
| Caterpillar CAT 385C / 390D Engine Swap | Complete engine swap cuts machine repair downtime by up to 70% compared to internal rebuilding. |
| Excavator Overhaul Workshops | Eliminates tedious MEUI injection calibration, liner honing, and crank fitting; saves mechanic labor hours. |
| Engine Distributors & Stockists | High-demand 18.1L 90-ton mining excavator engine ready for immediate resale to plant hire fleets and mining networks. |
| Rental Fleet Maintenance | Extends 85-to-90 ton excavator working lifespan and restores full digging hydraulic torque under load. |
CAT C18 Diesel Engine Assembly OEM Diagnostic Guide
Use this OEM manual diagnostic guide to troubleshoot operational engine symptoms on your Caterpillar 90-ton mining excavator:
| Engine Symptom | Technical Cause Analysis | Tatan Factory-Grade Solution |
|---|---|---|
| 1. Hard cold starting & MEUI Injection Pressure Fault | MEUI unit injector solenoid wear or fuel supply pressure drop below OEM limit (<0.4 MPa). | Inspect fuel transfer pump & ECM signals, or replace with Tatan complete CAT C18 ACERT engine assembly. |
| 2. Severe power loss & dense black smoke under digging load | Twin turbocharger wastegate failure leading to low boost (<1.5 bar) or MEUI injector nozzle tip fouling. | Inspect series turbocharger boost pressure or swap to a Tatan factory pre-tested C18 engine assembly. |
| 3. High engine oil consumption & heavy crankcase blow-by | Scored 18.1L cylinder liners, stuck oil rings, or valve stem seal wear allowing engine oil into combustion chambers. | Install Tatan new C18 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 CAT C18 complete engine assembly. |
Transport Packaging & Fast Global Shipping
To ensure 100% damage-free international transport, every Tatan CAT C18 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.
CAT C18 Engine FAQ & Related Categories
* Note: Wholesale Reference Price Starts From $300.00. Please contact Gavin for a final customized quote.
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