The Connecting rod assembly (H954) is a precision-engineered heart of the HOWO 7 6X4 Dump Truck engine, transforming the reciprocating motion of the piston into rotational force at the crankshaft. This assembly is built to withstand extreme combustion pressures and high inertial loads, making its structural integrity essential for long-term engine reliability. For a complete reference of all engine components and their specifications, consult the Sinotruk Catalog which provides detailed cross-references and original equipment part numbers.
The Connecting rod assembly (H954) is a complete unit consisting of a forged steel rod body, a split cap, precision bearing shells, and the critical Connecting rod bolt that secures the cap. This bolt is a high-strength fastener manufactured from heat-treated chromium‑molybdenum steel, featuring a rolled thread for improved fatigue life and a controlled shank design that provides the correct elastic stretch during tightening.
The Connecting rod assembly (H954) is designed with an optimized I‑beam cross‑section that reduces weight while maintaining rigidity. The big end is precisely machined to accept the bearing shells and is split to allow assembly around the crankshaft journal. The cap is retained by two Connecting rod bolts, which are torqued to a specific yield point using a torque‑angle method, ensuring a consistent and repeatable clamp load that keeps the bearing securely in place even under the most severe operating conditions.
Proper maintenance of the Connecting rod assembly (H954) includes regular inspection of the Connecting rod bolt for signs of stretching, thread damage, or corrosion. It is a standard industry practice to replace the bolts whenever the engine is disassembled for major overhaul, as they are designed to yield during initial installation and should not be reused. Using genuine Connecting rod bolts guarantees the correct material composition, heat treatment, and thread geometry, ensuring that the assembly remains safe and reliable throughout its service life.
The Connecting rod assembly (H954) is dynamically balanced to match the engine’s rotating mass, minimizing vibrations and extending bearing life. Each assembly is marked with a serial number for traceability and is tested for dimensional accuracy before leaving the factory. This attention to detail ensures that the engine operates smoothly, delivering the power and fuel efficiency expected from a HOWO 7 6X4 Dump Truck.
The Connecting rod bolt is a critical fastening element of the Connecting rod assembly (H954), providing the clamping force that holds the rod cap to the rod body. It is manufactured from premium alloy steel with a rolled thread, which offers superior fatigue resistance compared to machined threads. The bolt features a reduced shank diameter that allows controlled elastic elongation during tightening, ensuring that the preload remains constant over millions of load cycles.
Each bolt is coated with a micro‑encapsulated lubricant to achieve accurate and repeatable torque readings. The bolt is also marked with a batch code for full traceability, and its installation requires a strict torque‑angle procedure to ensure it reaches its yield point without exceeding it, providing a secure and durable joint that prevents cap separation and bearing failure.
| No. | Part No. | Description |
|---|---|---|
| 1 | VG1500030023 | Connecting rod bolt |
Premium forged steel with controlled grain flow. Our Connecting rod assembly (H954) is forged from high-grade micro‑alloyed steel, aligning the grain structure along the rod’s geometry to maximize fatigue strength. This ensures the assembly can handle the peak cylinder pressures of the HOWO 7 6X4 engine without deformation, providing a durable foundation for the rotating assembly.
Precision bolt design with controlled yielding. The Connecting rod bolt is manufactured with a rolled thread and a specially profiled shank that ensures elastic deformation under torque, providing a consistent clamp load that maintains bearing clearance and prevents cap movement. This results in a reliable joint that withstands millions of load cycles without loosening.
Advanced surface treatments for extended life. The connecting rod is shot‑peened to improve surface hardness and resist crack initiation, while the bolt is phosphate‑coated to provide corrosion protection and consistent friction. These treatments reduce wear and extend the service life of the Connecting rod assembly (H954), minimizing maintenance costs.
Trusted by workshops and fleets globally. Our Connecting rod assembly (H954) components are produced under strict quality control, with each bolt batch tested for tensile strength and hardness. This ensures that every part meets original equipment standards, providing the reliability and performance demanded by professional rebuilders and fleet operators worldwide.
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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