Description
CAT C9 Diesel Engine Assembly Overview
The CAT C9 Diesel Engine Assembly (OEM Part Numbers: C9, C9 ACERT, 238-2722, 10R-7222, 284-2713) manufactured by Tatan is an 8.8L 6-cylinder turbocharged water-cooled ACERT engine belonging to our Diesel Engine Assembly classification. Engineered specifically for Caterpillar CAT 330D, 330D L, 336D, 336D L, and 336D2 30-to-36 ton mining excavators, replacing your worn engine with a Tatan complete C9 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 HEUI hydraulic electronic unit injectors, high-pressure actuation oil pump, ADEM A4 ECU harness, turbocharger, starter motor, and alternator, ensuring 100% direct bolt-on fitment with hydraulic pump couplings and mounting brackets.
Key Attributes & Parameters for CAT C9 Diesel Engine Assembly
| Product Category | Diesel Engine Assembly | Warranty | 1 Year / 12 Months |
| Specific Engine Model | CAT C9 / C9 ACERT Engine | Brand Name | Tatan |
| Compatible Equipment | Caterpillar CAT 330D | CAT 336D | OEM Part Number | C9 / 238-2722 |
| Engine Displacement | 8.8 Liters (8800 cc / 8.8L) | Cylinder Arrangement | 6 Cylinders Inline (I-6) 4-Stroke |
| Horsepower & RPM | 186-261 kW (250-350 HP) @ 1800-2200 | Cooling System | Water-Cooled / Liquid Cooled |
| Fuel Injection System | HEUI Electronic Unit Injector (ADEM A4) | Aspiration Type | Turbocharged & ATAAC Air Aftercooled |
| 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 30-to-36 ton mining excavator engine with our CAT C9 Diesel Engine Assembly, buyers achieve maximum operational uptime and power efficiency:
| Application Scenario | Value Delivered to Buyer |
|---|---|
| Caterpillar CAT 330D / 336D Engine Swap | Complete engine swap cuts machine repair downtime by up to 70% compared to internal rebuilding. |
| Excavator Overhaul Workshops | Eliminates tedious HEUI oil actuation pressure testing, liner honing, and crank fitting; saves mechanic labor hours. |
| Engine Distributors & Stockists | High-demand 8.8L 35-ton mining excavator engine ready for immediate resale to plant hire fleets and mining networks. |
| Rental Fleet Maintenance | Extends 30-to-36 ton excavator working lifespan and restores full digging hydraulic torque under load. |
CAT C9 Diesel Engine Assembly OEM Diagnostic Guide
Use this OEM manual diagnostic guide to troubleshoot operational engine symptoms on your Caterpillar 35-ton mining excavator:
| Engine Symptom | Technical Cause Analysis | Tatan Factory-Grade Solution |
|---|---|---|
| 1. Hard cold starting & HEUI Actuation Pressure Fault | HEUI actuation pump pressure drop (<6.0 MPa) or electronic unit injector solenoid valve wear. | Inspect IAP sensor & actuation pump, or replace with Tatan complete CAT C9 ACERT engine assembly. |
| 2. Severe power loss & dense black smoke under digging load | Turbocharger wastegate failure leading to low boost (<1.2 bar) or HEUI injector nozzle tip fouling. | Inspect turbocharger boost pressure or swap to a Tatan factory pre-tested C9 engine assembly. |
| 3. High engine oil consumption & heavy crankcase blow-by | Scored 8.8L cylinder liners, stuck oil rings, or valve stem seal wear allowing engine oil into combustion chambers. | Install Tatan new C9 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 C9 complete engine assembly. |
Transport Packaging & Fast Global Shipping
To ensure 100% damage-free international transport, every Tatan CAT C9 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 C9 Engine FAQ & Related Categories
* Note: Wholesale Reference Price Starts From $300.00. Please contact Gavin for a final customized quote.
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