Description
C3.3B 435-4600 Engine Assembly Overview
The C3.3B 435-4600 Engine Assembly manufactured by Tatan is a 3.331L 4-cylinder direct-injection turbocharged water-cooled diesel powerplant belonging to our Diesel Engine Assembly classification. Engineered specifically for Caterpillar 308, 308E2 CR, 308E, and 308D CR 8-ton compact excavators, swapping your fatigued powerplant with this complete C3.3B 435-4600 Engine Assembly unit eliminates costly jobsite downtime, severe crankcase blow-by, and hydraulic stall under heavy excavation loading.
Built strictly according to original Caterpillar OEM specifications, this complete engine assembly is pre-fitted with a calibrated fuel injection pump, direct fuel injectors, heavy turbocharger, 12V starter motor, and charging alternator, ensuring 100% direct mechanical alignment with Cat main hydraulic pump dampener couplings and engine mounting brackets.
Key Attributes & Parameters for C3.3B 435-4600 Engine Assembly
| Product Category | Diesel Engine Assembly | Warranty | 1 Year / 12 Months |
| Specific Engine Model | Cat C3.3B / C3.3B-DIT Turbo Engine | Brand Name | Tatan |
| Compatible Equipment | Caterpillar 308 | 308E2 CR | 308E | 308D CR | OEM Part Number | C3.3B / 435-4600 / 371-2292 |
| Engine Displacement | 3.331 Liters (3331 cc / 3.3L) | Cylinder Arrangement | 4 Cylinders Inline (I-4) 4-Stroke |
| Horsepower & RPM | 49.7 kW (67 HP) @ 2400 RPM (275 N·m Torque) | Cooling System | Heavy-Duty Water-Cooled / Radiator |
| Machinery Test Report | Provided (100% Dyno Tested under Load) | Video Outgoing-Inspection | Provided Before Shipping |
| Aspiration Type | Turbocharged & Charge-Air Cooled | Place of Origin | Guangdong, China |
| Quality Status | 100% Brand New Engine Assembly | Packaging | Export Reinforced 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 C3.3B 435-4600 Engine Assembly, workshops and equipment owners eliminate repetitive downtime:
| Application Scenario | Value Delivered to Buyer |
|---|---|
| Cat 308 Engine Replacement | Swapping to the C3.3B 435-4600 Engine Assembly cuts machine repair downtime by up to 75% compared to trial-and-error field block rebuilding. |
| Compact Equipment Rebuild Centers | Avoids the high cost and unreliability of line-boring compact 4-cylinder bearing saddles and grinding undersized crankshafts on high-hour blocks. |
| Municipal & Utility Contractors | Restores full 49.7 kW high-stall torque, driving dual main hydraulic pumps simultaneously without engine RPM dipping under heavy bucket bites. |
| International Machinery Stockists | Ready-to-ship replacement engine inventory for overseas contractors maintaining working fleets of classic Cat mini excavators. |
C3.3B 435-4600 Engine Assembly OEM Diagnostic Guide
Use this technical diagnostic guide to identify engine failures on your Caterpillar 308 excavator:
| Engine Symptom | Technical Cause Analysis | Tatan Factory-Grade Solution |
|---|---|---|
| 1. Hard cold starting & dense white unburned fuel smoke | Fuel injection timing retarded, glow plug failure, or cylinder compression falling below 2.8 MPa due to 94 mm piston ring and cylinder wall wear. | Adjust injection timing or replace with a complete C3.3B 435-4600 Engine Assembly. |
| 2. Severe RPM drop & heavy black smoke under hydraulic load | Turbocharger wastegate sticking causing low manifold boost pressure (< 0.9 bar) or fuel injection metering valve fatigue. | Inspect turbocharger boost pressure or swap to a factory pre-tested complete replacement engine. |
| 3. Excessive oil consumption & high crankcase blow-by pressure | Scored 3.3L cylinder liners, stuck piston oil control rings, or deteriorated valve stem seals allowing engine oil into combustion chambers. | Install a new complete engine assembly; flush oil cooler lines and replace oil filter cartridges. |
| 4. Engine coolant overheating & continuous radiator bubbling | Water pump impeller erosion, clogged radiator core tubes, or cylinder head gasket leaking high-pressure combustion gas into the water jacket. | Replace thermostat (82°C), flush cooling system, or install a brand new complete engine unit. |
Transport Packaging & Fast Global Shipping
To ensure 100% damage-free international transport, every Tatan C3.3B engine assembly is preserved with anti-corrosion fluid, sealed in heavy poly film, and strapped inside an export-grade reinforced 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 3.3L engine assemblies and bulk fleet 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 CE industrial safety directives.
C3.3B 435-4600 Engine FAQ & Related Categories
* Note: Wholesale Reference Price Starts From $300.00. Please contact Gavin for a final customized quote.
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