Description
C7.1 435-4500 Engine Assembly Overview
The C7.1 435-4500 Engine Assembly manufactured by Tatan is a 7.01L 6-cylinder inline turbocharged water-cooled diesel engine belonging to our Diesel Engine Assembly classification. Engineered specifically for Caterpillar 320D2, 320D2 L, and 320D2 GC 20-ton excavators, replacing your worn powerplant with a complete C7.1 435-4500 Engine Assembly unit eliminates chronic fuel injection faults, excessive blow-by, and severe engine bogging under heavy hydraulic digging loads.
Constructed strictly to original Caterpillar OEM standards, this engine utilizes a robust mechanical inline fuel injection system engineered for high operational reliability. It comes fully equipped with the fuel injection pump, injectors, exhaust turbocharger, water pump, and starter motor, ensuring direct bolt-on fitment with original CAT flywheel housings and hydraulic main pump couplings.
Key Attributes & Parameters for C7.1 435-4500 Engine Assembly
| Product Category | Diesel Engine Assembly | Warranty | 1 Year / 12 Months |
| Specific Engine Model | Caterpillar C7.1 Mechanical Diesel Engine | Brand Name | Tatan |
| Compatible Equipment | Caterpillar 320D2 | 320D2 L Excavator | OEM Part Number | C7.1 / 435-4500 / 498-8316 |
| Engine Displacement | 7.01 Liters (7010 cc / 7.0L) | Cylinder Arrangement | 6 Cylinders Inline (I-6) 4-Stroke |
| Horsepower & RPM | 104 – 112 kW (140 – 150 HP) @ 1800-2000 RPM | Cooling System | Water-Cooled / Liquid Cooled |
| Machinery Test Report | Provided (Dyno Tested under Load) | Video Outgoing-Inspection | Provided Before Shipping |
| Fuel Injection System | Mechanical In-Line Direct Injection | Place of Origin | Guangdong, China |
| Quality Status | Brand New Replacement Engine | Packaging | Export Wooden Box Packaging |
Supported Machinery Brands & Engine Coverage
In addition to Caterpillar, Tatan manufactures replacement complete diesel engines and overhaul components for leading machinery brands:
Application Scenarios & Buyer Value
When rebuilding or replacing aging powerplants with our C7.1 435-4500 Engine Assembly, workshops and equipment owners eliminate repetitive downtime:
| Application Scenario | Value Delivered to Buyer |
|---|---|
| Caterpillar 320D2 Engine Replacement | Swapping to a complete C7.1 435-4500 Engine Assembly cuts machine repair downtime by up to 70% compared to field block rebuilding. |
| Excavator Overhaul Workshops | Eliminates the high cost and unreliability of line-boring scored blocks and rebuilding worn crankshaft journals on high-hour machines. |
| Heavy Earthmoving & Quarry Fleets | Restores strong digging breakout torque without engine bogging down under heavy 20-ton bucket cycles. |
| Export Heavy Parts Stockists | Ready-to-ship replacement engine units for international contractors operating Caterpillar 320D2 fleets in tough operating environments. |
C7.1 435-4500 Engine Assembly OEM Diagnostic Guide
Use this technical diagnostic guide to identify engine failures on your Caterpillar 320D2 excavator:
| Engine Symptom | Technical Cause Analysis | Tatan Factory-Grade Solution |
|---|---|---|
| 1. Hard starting & excessive white smoke on cold startup | Mechanical injection pump delivery valve wear, retarded injection timing, or low compression in 6 cylinders due to piston ring seating fatigue. | Adjust fuel injection pump timing or replace with a complete Tatan C7.1 435-4500 Engine Assembly unit. |
| 2. Engine bogging & dense black smoke under heavy digging load | Turbocharger wastegate seizure leading to low boost pressure (<1.2 bar), clogged primary fuel filter, or governor spring tension loss. | Verify intake manifold boost pressure, renew fuel filters, or swap to a factory pre-tested complete engine assembly. |
| 3. High engine oil consumption & heavy crankcase blow-by | Scored 7.01L cylinder liners, stuck oil scraper rings, or worn valve guides allowing engine oil ingestion into combustion chambers. | Install a new complete engine unit; flush the oil cooler gallery and replace engine oil filter elements. |
| 4. Overheating & coolant boiling over into expansion tank | Cylinder head gasket combustion gas leakage into the cooling jacket or water pump impeller cavitation erosion under high ambient temperatures. | Inspect cylinder head flatness, renew 82°C thermostat, or install a brand-new complete engine assembly. |
Transport Packaging & Fast Global Shipping
To ensure damage-free international transport, every Tatan C7.1 engine assembly is treated with anti-corrosion oil, sealed in heavy poly film, and strapped inside an export-grade wooden crate.
✈️ Express Air Courier
Partnered with DHL, FedEx, UPS, and TNT for 3-7 day express door-to-door delivery worldwide.
🚢 Sea Cargo Freight
LCL and FCL ocean container shipping for heavy engine assemblies and bulk stock orders.
📦 Export Wooden Cases
Fumigated solid wooden boxes with custom high-density foam inserts to prevent shipping shock.
Quality Control & International Certificates
Tatan hydraulic and engine components are manufactured under ISO 9001 certified quality control systems and strictly comply with international CE safety standards.
C7.1 435-4500 Engine FAQ & Related Categories
* Note: Wholesale Reference Price Starts From $300.00. Please contact Gavin for a final customized quote.
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