The Flywheel and flywheel bolt are essential drivetrain components that connect the engine to the transmission in the HOWO 7 6X4 Dump Truck, storing rotational energy and providing a smooth power transfer. The flywheel assembly ensures consistent engine speed, while the flywheel bolts securely fasten it to the crankshaft. For a complete list of all engine and drivetrain components, refer to the Sinotruk Catalog which provides detailed cross-references and original equipment part numbers.
The Flywheel and flywheel bolt set includes the Flywheel assembly and the Hexagon head bolt (Reference drawing 181500020125). The flywheel is a precision-machined cast iron component with a starter ring gear, while the hexagon head bolts are high-strength fasteners designed to withstand the high torsional loads and cyclic stresses of heavy-duty engine operation.
The Flywheel and flywheel bolt assembly is manufactured to exacting OEM standards, with the flywheel dynamically balanced to reduce vibration and ensure smooth engine operation. The hexagon head bolts are made from heat-treated alloy steel with a controlled thread form, providing consistent clamp load and resistance to loosening under extreme conditions.
Proper maintenance of the Flywheel and flywheel bolt is crucial for drivetrain reliability. The flywheel should be inspected for wear, cracks, or heat damage, and the bolts should be replaced whenever the flywheel is removed, as they are designed for single-use torque-to-yield applications. Using genuine components ensures that the Flywheel and flywheel bolt assembly maintains its original performance characteristics, reducing the risk of failure and extending the service life of the HOWO 7 6X4 Dump Truck.
The Flywheel assembly is a heavy-duty cast iron component that mounts to the rear of the crankshaft, providing inertia to smooth engine rotation and serving as the friction surface for the clutch. It features a precision-machined face, a starter ring gear, and a pilot bearing bore for the transmission input shaft. This assembly is dynamically balanced to minimize vibration and is designed to withstand the high torque and thermal loads of the HOWO 7 6X4 Dump Truck engine. The flywheel is also drilled with mounting holes that precisely match the crankshaft flange, ensuring accurate alignment and secure attachment.
The Hexagon head bolt is a high-strength fastener used to secure the flywheel to the crankshaft. Manufactured from heat-treated alloy steel, it features a standard hexagon head and a rolled thread for increased fatigue strength. The bolt is designed to be tightened to a specific torque angle, ensuring that it yields within its elastic limit and maintains a consistent clamp load. This bolt is critical for preventing flywheel loosening, which could lead to severe engine damage. It is also marked with a batch code for full traceability and is supplied with a micro-encapsulated lubricant for accurate torque application.
| No. | Part No. | Description |
|---|---|---|
| 1 | AZ1560020567 | Flywheel assembly |
| 2 | VG1500020046 | Hexagon head bolt (Reference drawing 181500020125) |
OEM-grade materials and precision balancing. Our flywheel is cast from high-grade nodular iron and dynamically balanced to exacting tolerances, ensuring smooth engine operation and reduced vibration. The flywheel bolts are manufactured from heat-treated alloy steel with a rolled thread, providing superior fatigue strength and consistent clamp load.
Precision-engineered fastening with controlled yield. The hexagon head bolts are designed for torque-to-yield application, providing a secure and reliable joint that withstands the high torsional loads of the HOWO 7 6X4 engine. Each bolt is coated with a micro-encapsulated lubricant to achieve accurate and repeatable torque readings.
Advanced surface treatment for durability. The flywheel features a precision-ground friction surface that is induction-hardened to resist wear and heat checking. The bolts are phosphate-coated to provide corrosion resistance and consistent friction characteristics, ensuring long-term reliability in demanding environments.
Trusted by workshops and fleets worldwide. Our Flywheel and flywheel bolt sets are used by professional rebuilders and fleet maintenance shops who rely on the consistent quality and precise fit of our components. By choosing our products, you ensure that your HOWO 7 6X4 Dump Truck delivers reliable power and performance for years to come.
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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