The Cylinder block assembly is the heart of the engine in the HOWO 7 6X4 Dump Truck, housing the cylinders and providing the foundation for combustion and power generation. This assembly includes critical components such as the cylinder block itself, bowl-shaped plugs, and cylinder head bolts. For a complete list of genuine parts, refer to the Sinotruk Catalog which offers detailed specifications and cross-references.
This Cylinder block assembly consists of the Cylinder block assembly, Bowl-shaped plug, Cylinder head bolt, and Cylinder head bolt-pre-glued. Each of these elements is engineered to exacting tolerances, ensuring that the engine operates efficiently and reliably under the most demanding conditions. The bowl-shaped plugs seal oil and coolant passages, while the cylinder head bolts provide the necessary clamping force to maintain a leak-free seal between the cylinder head and the block.
The Cylinder block assembly is manufactured from high-strength cast iron, with precision-machined cylinder bores and integrated oil galleries. This design ensures optimal heat dissipation and structural rigidity, which are essential for the heavy-duty cycles of a dump truck. Regular inspection and replacement of the bowl-shaped plugs and cylinder head bolts are recommended to prevent oil leaks and maintain proper cylinder head clamping force.
Proper maintenance of the Cylinder block assembly is crucial for the longevity of the engine. Using genuine components ensures that the assembly retains its original performance characteristics, reducing the risk of premature wear or catastrophic failure. The Cylinder block assembly is a key investment in the reliability and productivity of your HOWO 7 6X4 Dump Truck.
The Cylinder block assembly is the main structural component of the engine, housing the cylinders, crankshaft, and various oil and water passages. It is cast from high-strength alloy iron and features precision-honed bores for optimal piston fit and reduced friction. This assembly also includes integrated cooling jackets and lubrication channels that ensure consistent operating temperatures and efficient oil distribution across all moving parts.
The Bowl-shaped plug is a concave sealing element used to close off oil galleries and coolant passages within the cylinder block. Its unique bowl shape provides a self-centering effect, ensuring a tight seal under varying pressures and temperatures. Made from corrosion-resistant steel, these plugs are designed to withstand the thermal cycling and vibration typical of heavy-duty diesel engines, preventing leaks that could lead to engine damage.
The Cylinder head bolt is a high-strength fastener that secures the cylinder head to the cylinder block, maintaining the critical clamping force required for a gas-tight seal. These bolts are manufactured from heat-treated alloy steel and are precision-threaded to ensure consistent torque application. Properly torqued cylinder head bolts prevent head gasket failure and ensure that the combustion chamber remains sealed under high cylinder pressures.
The Cylinder head bolt-pre-glued features a factory-applied micro-encapsulated adhesive coating that provides a consistent, controlled friction coefficient during installation. This pre-glued coating eliminates the need for separate thread sealants and ensures that the bolt achieves the correct clamp load with minimal torque scatter. It also helps prevent loosening due to vibration, making it ideal for the demanding environment of a dump truck engine.
| No. | Part No. | Description |
|---|---|---|
| 1 | AZ1095010048 | Cylinder block assembly |
| 2 | 190003989204 | Bowl-shaped plug |
| 3 | 190003989215 | Bowl-shaped plug |
| 4 | 190003989288 | Bowl-shaped plug |
| 5 | 190003989480 | Bowl-shaped plug |
| 6 | VG1500010185 | Cylinder head bolt |
| 6 | AZ900380000012 | Cylinder head bolt-pre-glued |
Premium OEM-grade materials. Our Cylinder block assembly is cast from high-quality alloy iron with precise metallurgical control, ensuring superior wear resistance and thermal stability. Every bowl-shaped plug and cylinder head bolt is sourced from certified suppliers to meet the strictest quality standards.
Precision engineering for perfect fit. The cylinder bores are honed to exacting tolerances, and the bolt threads are rolled for consistent torque characteristics. This ensures that the Cylinder block assembly delivers optimal compression and sealing, reducing oil consumption and exhaust emissions.
Enhanced durability through surface treatment. All bowl-shaped plugs receive a protective coating against corrosion, while the cylinder head bolts are heat-treated to achieve the ideal balance of strength and ductility. This extends the service life of the Cylinder block assembly even under high-load conditions.
Proven performance in heavy-duty applications. The Cylinder block assembly has been rigorously tested in real-world conditions, including extreme temperatures and continuous high-load operation. Our components are trusted by fleet operators worldwide for their reliability and ability to minimize unplanned downtime.
Our online catalog provides comprehensive access to genuine SINOTRUK parts for all major vehicle lines — including HOWO, Sitrak, Steyr, and Yellow River series trucks. You can browse detailed specifications, original part numbers, and exploded-view diagrams for every assembly. Whether you are performing routine maintenance or planning a major overhaul, the catalog helps you quickly identify the correct components for your vehicle. When you become a SINOTRUK customer, we offer complimentary full‑access catalog services, ensuring you always have the latest product data and interchangeability information at your fingertips to support efficient fleet management and accurate parts ordering.
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