Product Images
Product Parameters
|
Parameter Category |
Detailed Description |
Parameter Category |
Detailed Description |
| Model | 4914774 | Applicable temperature range | -40℃ to 300℃ |
| Material | High-strength cast iron/alloy steel | Structural design | Optimize the design of the cooling channels and sealing surfaces to enhance thermal efficiency and sealing performance |
| Weight | About 50 to 150 kilograms | Compatibility | Compatible with NTA855 and other series of engines |
| Number of bolt holes | 6 to 12 (designed according to the number of engine cylinders) | Bolt fastening |
1. Use a dedicated torque wrench to tighten in stages along the diagonal sequence 2. Bolts of different lengths must be coated with the correct coating. Mixing is strictly prohibited |
| Sealing surface accuracy | The flatness tolerance is ≤0.05mm | Maintenance suggestions |
1. Regular inspection : Check for cracks or deformations in the cylinder block every 10,000 kilometers 2. Cooling system maintenance : Keep the coolant clean to prevent cylinder block corrosion |
Product Advantages
1,4914774 Cylinder Block
Material and Durability: Made of high-strength cast iron or alloy steel, possessing excellent resistance to high temperatures and pressures, strong oxidation resistance, and effectively extending service life.
Structural Design: Optimized cooling channels and sealing surface design improve thermal efficiency and reduce leakage risk; flatness tolerance ≤0.05mm ensures stable engine operation.
Technical Highlights of the 5440745X Cylinder Block
Precision Manufacturing: Produced by Xi'an Internal Combustion Engine Co., Ltd., high-precision sealing surface technology (such as HVOF thermal spraying technology) effectively improves its wear resistance.
Compatibility: Adapted to ISM11/QSM11 engines; modular design simplifies maintenance procedures and supports quick replacement.
Lightweight: Some models utilize aluminum alloy, reducing weight while maintaining strength and improving fuel economy.
Cummins Cylinder Head Superior Performance
Integral Design: High rigidity, not easily deformed, integrated structure reduces the risk of water and oil leaks and lowers the failure rate.
High-Efficiency Combustion: Single-cylinder four-valve technology improves intake and exhaust efficiency, and the central injector achieves uniform fuel atomization for more complete combustion.
Noise Reduction Technology: Articulated piston design (steel top + aluminum skirt) reduces mechanical noise and optimizes driving comfort
FAQ
Q: 1. Which Cummins engine models are compatible with the 4914774 cylinder block?
A: The 4914774 cylinder block is specifically designed for the NTA855 series heavy-duty diesel engines, suitable for high-load applications such as construction machinery and generator sets. It uses high-strength cast iron and features optimized cooling channel design to ensure high-temperature and high-pressure performance.
Q: 2. What is the difference between the 5440745X and 4914774 cylinder blocks?
A: The 5440745X cylinder block is compatible with ISM11/QSM11 engines, manufactured by Cummins Internal Combustion Engines, and employs high-precision sealing surface technology, improving wear resistance by 300%. Some models also support lightweight design.
Q: 3. What are the core technological advantages of Cummins cylinder heads?
A: Cummins cylinder heads utilize single-cylinder four-valve technology to improve intake and exhaust efficiency, and integrate a central injector for uniform fuel atomization. The integrated design reduces the risk of deformation, and the articulated piston structure effectively reduces mechanical noise.
Q: 4. What is the B10 life of a Cummins cylinder block?
A: Cummins cylinder blocks boast a B10 life of 2 million kilometers and global sales exceeding 1 million units. Its Celect electronic fuel control system (maximum injection pressure 1800 bar) and EBP intelligent energy-saving technology significantly enhance reliability.
Q: 5. What are some common issues during customs clearance?
A: HS code error: May lead to tax rate discrepancies or return shipments. Pre-classification is recommended.
Missing certification: Such as 3C certification (mandatory certification is required for safety-related parts).
Dispute over declared value: Payment vouchers are required.
Q: 6. How is the HS code for Cummins parts determined?
A: Engine parts are usually classified under Chapter 8708 (Motor Vehicle Parts and Accessories). Specific codes should be checked on the General Administration of Customs website or consulted with a customs broker based on material and application.
Q: 7. What shipping method is used?
A: Generally, sea freight is chosen.
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