199012340123124A: Premium Rear Wheel Bolt/Nut Set for SINOTRUK Howo

The Critical Role of the 199012340123124A Fastener Set

The Rear Wheel Bolt and Nut set, identified by the OEM code 199012340123124A, is not a mere accessory but a fundamental safety component within the chassis system of a SINOTRUK Howo. Its primary function is to create a high-integrity, clamped connection between the wheel hub, brake drum (or disc), and the wheel itself. This set, comprising precisely engineered bolts and matching nuts, must withstand the tremendous torque from the axle, the dynamic loads of cornering and braking, and the relentless fatigue induced by road vibrations over millions of cycles.

Each bolt in the 199012340123124A kit is a marvel of precision manufacturing. Made from alloy steel and undergoing rigorous heat-treatment processes like quenching and tempering, they achieve an optimal balance of hardness for wear resistance and toughness to prevent brittle fracture. The threads are rolled, not cut, which enhances their strength by preserving the metal’s grain structure and provides superior resistance to loosening under vibration. The accompanying nuts are designed with specific thread profiles and often feature integrated washers or flanges to distribute the clamping force evenly across the wheel mounting surface, preventing distortion and ensuring consistent pressure.

Failure of even a single fastener from this set can have catastrophic consequences. A loose or broken wheel bolt, especially on the dual-wheel rear axle of a Howo truck, can lead to uneven load distribution on the remaining bolts, potentially causing a cascading failure. This risks wheel detachment—a severe safety hazard. Therefore, using the genuine, specification-matched 199012340123124A set during every wheel service or repair is not a recommendation; it is a non-negotiable standard for operational safety and asset protection.

Key Advantages of the Genuine 199012340123124A Bolt/Nut Set

Technical Specifications: Rear Wheel Bolt/Nut Set 199012340123124A

Installation, Torque Procedure, and Maintenance Guide

The correct installation of the 199012340123124A Rear Wheel Bolt/Nut set is as critical as the component’s quality itself. The process must begin with a thorough inspection of the wheel studs on the hub, the wheel mounting surfaces, and the holes in the wheel disc. All surfaces must be clean, dry, and free of rust, dirt, or old thread-locking compound. Any damaged stud must be replaced before proceeding. The new bolts from the 199012340123124A set should hand-thread easily onto the studs; forcing them indicates cross-threading.

Torque tightening is non-negotiable. Wheels must be installed using a calibrated torque wrench to achieve the precise clamping force specified by SINOTRUK for the Howo model. The general procedure involves a star-pattern tightening sequence to ensure even pressure distribution. First, snug-tighten all nuts in a star pattern. Then, proceed to the final torque value in multiple stages (e.g., 50%, 75%, 100% of final torque), following the same star pattern at each stage. Never lubricate the threads or the nut seat unless specifically instructed by the manufacturer, as this drastically alters the friction and the resulting clamping force for a given torque.

Preventive maintenance is straightforward but vital. During pre-trip inspections and periodic maintenance, visually check all wheel fasteners for signs of looseness, rust, or physical damage. Re-torquing wheels after the first 50-100 km of operation on newly mounted tires is a highly recommended practice, as settling can occur. It is also advisable to replace the entire set 199012340123124A, not individual bolts, during any major wheel service to ensure uniform strength and performance. Using a mismatched set compromises the entire assembly’s integrity.

Common failure symptoms include visible rust streaks emanating from under the nut (indicating movement), cracked or stretched bolts, or damaged threads. A persistent wobble or vibration at highway speeds can sometimes be traced to unevenly torqued or loose wheel fasteners. Addressing these issues immediately by replacing the fasteners with a genuine 199012340123124A set and performing a correct torque procedure is essential for safety. Regular training for mechanics on proper wheel mounting procedures is an investment that pays dividends in safety and reduced roadside breakdowns.

Conclusion: Secure Your Journey with Genuine Quality

The Rear Wheel Bolt/Nut Set, OEM 199012340123124A, exemplifies the principle that the most critical components are often the simplest in design but the highest in required integrity. This fastener set is the final, crucial link holding the wheel to your SINOTRUK Howo, bearing the full weight and dynamic forces of the vehicle and its load.

Do not compromise on this fundamental safety element. Choosing the genuine 199012340123124A set ensures material quality, dimensional precision, and performance reliability that aftermarket copies cannot guarantee. It is a direct investment in the prevention of catastrophic failure, the protection of your valuable asset, and the peace of mind that comes from knowing your truck is secured by components that meet the original manufacturer’s rigorous standards. Trust in genuine parts for a safer, more reliable operation mile after mile.