New Machines In Stock SD40B Compact Diesel Engine – 4-Cylinder, Water-Cooled
The Kubota SD40B engine, identified by the code C3UI73S, is a 4-cylinder, vertical, water-cooled, 4-cycle diesel engine. This engine is commonly used in various industrial applications, including construction and agricultural machinery.
Technical Specifications
| Attribute | Value |
| Engine Model | SD40B |
| Type | 4-cylinder, vertical, water-cooled, 4-cycle diesel |
| Displacement | 2.2 L |
| Bore x Stroke | 87 mm x 92 mm |
| Aspiration | Turbocharged |
| Rated Power | 73.0KW |
| Max Torque | 265–280 Nm @ 1,400–1,600 rpm |
| Fuel System | Mechanical |
| Compression Ratio | 19.0:1 |
| Cooling System | Water-Cooled |
| Dry Weight | Approx. 280–320 kg |
Key Features & Benefits
- Compact and Lightweight – Easy to install in equipment with space constraints.
- Fuel Efficiency – Direct injection system and optimized combustion provide excellent fuel economy and lower operating costs.
- Low Emissions – Complies with global emission standards for environmentally friendly operation.
- Quiet Operation – Low noise and vibration, suitable for urban and residential environments.
- Durability – Designed for continuous duty in demanding industrial and construction applications.
- Easy Maintenance – Service-friendly layout simplifies maintenance and reduces downtime.
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Frequently Asked Questions
Q1: What is your main products?
A1: We specialize in excavator engine spare parts, including main cylinder blocks, cylinder heads, crankshafts, engine assemblies, pistons, cylinder liners, piston rings, camshafts, connecting rods, oil pumps, water pumps, valve series products, and virtually all components of the entire engine.
Q2: If I only know the excavator model, but can't provide parts numbers, what should I do?
A2: If possible, you can send us pictures of old products, name plates, or dimensions for reference.
Q3: Can you accept sample orders?
A3: Yes, we can supply samples if we have ready parts in stock, but customers must pay for the sample cost and courier charges.
Q4: Do you test all your goods before delivery?
A4: Yes, we perform 100% testing before delivery.
Q5: What should I do if there's something wrong with the items?
A5: Our products are professionally tested and quality is very stable. If you encounter any issues, please contact us. We have a professional after-sales team to help resolve any problems.
