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The WG9114930210/1 Fifth Wheel is a premium, heavy-duty chassis towing component engineered specifically for SINOTRUK Howo trucks, delivering reliable coupling and articulation for semi-trailers and heavy haulage combinations. As a trusted supplier of genuine Sinotruk howo parts, we offer this OEM-grade fifth wheel as a direct replacement for the original factory unit. The WG9114930210/1 fifth wheel ensures secure trailer attachment, smooth articulation and withstands the constant load, shock and friction of commercial towing operation.
Manufactured from high-strength cast steel with a precision-machined coupling plate, a hardened locking jaw and a durable corrosion-resistant coating, the WG9114930210/1 Fifth Wheel is built to exact OEM dimensions. Its robust construction maintains correct coupling height, resists wear from the trailer king pin and provides dependable performance on Howo A7, T7H and related heavy-duty tractor units.
OEM WG9114930210/1 • Trailer coupling • Hardened locking jaw • High load capacity • Direct OEM fit
The WG9114930210/1 Fifth Wheel is a critical coupling component on SINOTRUK Howo tractor units. It mounts to the chassis frame and provides the pivot point for a semi-trailer, locking onto the trailer king pin and allowing the combination to articulate during turns. The fifth wheel must carry heavy vertical loads, resist horizontal forces and release the trailer smoothly when required.
This WG9114930210/1 fifth wheel is precision-manufactured to exact OEM dimensions. The coupling plate is machined flat for correct king pin engagement, the locking jaw is hardened for wear resistance, and the release mechanism is designed for reliable operation. The mounting brackets match the factory chassis holes, ensuring a secure, bolt-on installation.
Common signs that a fifth wheel needs replacement include excessive play between the plate and king pin, difficulty locking or releasing the trailer, visible cracks or wear on the locking jaw, and a loose or noisy coupling. Fitting a new WG9114930210/1 fifth wheel restores secure trailer attachment and safe towing.
Whether you are repairing a worn coupling, replacing a damaged fifth wheel or carrying out preventive maintenance on a fleet of Howo tractors, the WG9114930210/1 Fifth Wheel delivers the quality, strength and durability that SINOTRUK Howo professionals expect.
The WG9114930210/1 Fifth Wheel is designed for SINOTRUK Howo tractor units, with primary compatibility across the A7, T7H, HOWO 371 and HOWO 380 series that use the standard chassis-mounted fifth wheel coupling. It is a direct OE replacement, so it bolts to the factory chassis frame and accepts standard trailer king pins without modification.
This fifth wheel is essential in applications where reliable towing and trailer security are critical, such as long-haul transport, container haulage, construction and heavy equipment transport. In these duties, the fifth wheel must carry heavy vertical loads, resist horizontal forces and release the trailer smoothly when required.
When replacing the fifth wheel, it is recommended to inspect the chassis mounting brackets, king pin, release mechanism and lubrication points for wear or damage. The WG9114930210/1 is designed to work with the factory chassis components, ensuring correct alignment and a secure installation. It is suitable for both standard and heavy-duty towing configurations.
For fleets with multiple HOWO tractors, standardising on the WG9114930210/1 simplifies towing repair inventory and ensures the correct fifth wheel is available for scheduled maintenance or emergency repairs.
Replacing the WG9114930210/1 Fifth Wheel is a substantial procedure that requires mechanical expertise, appropriate lifting equipment and safe working practices. This work should be performed by qualified technicians with experience in heavy-duty towing systems. Begin by parking the vehicle on level ground and engaging the parking brake.
Disconnect the trailer and support the old fifth wheel with a crane or transmission jack. Remove the mounting bolts and lower the old unit carefully. Inspect the chassis mounting brackets and bolt holes for wear, cracks or elongation. Clean the mounting area and check the new fifth wheel for correct fit.
Position the new WG9114930210/1 fifth wheel on the chassis and align the mounting holes. Insert the bolts and torque them to the specified value. Check that the coupling plate is level and that the release mechanism operates smoothly. Apply grease to the coupling plate and locking jaw.
After installation, couple and uncouple a trailer several times to verify correct operation. Check for excessive play between the plate and king pin. For ongoing maintenance, lubricate the fifth wheel regularly, inspect the locking jaw for wear and replace the unit if cracks or excessive play are found. Keeping the fifth wheel in good condition ensures safe towing and reliable trailer coupling.
The WG9114930210/1 Fifth Wheel is manufactured in an ISO 9001-certified facility using advanced casting, machining, heat-treatment and coating processes. Raw cast steel is sourced from certified suppliers and tested for chemical composition, hardness and dimensional accuracy before production.
Each fifth wheel is precision-machined to exact OEM dimensions. The coupling plate is ground flat for correct king pin engagement, the locking jaw is hardened for wear resistance, and the release mechanism is tested for smooth operation. The mounting brackets are checked for correct hole alignment. Every unit is inspected for cracks, porosity and coating defects.
Random samples from each production batch undergo load testing, fatigue testing and salt-spray testing to validate long-term reliability under real-world towing conditions. These tests ensure the WG9114930210/1 continues to deliver secure trailer coupling throughout its service life.
We back the WG9114930210/1 with a comprehensive 12-month warranty against material and workmanship defects. Our rigorous quality control ensures that every fifth wheel delivers the same fit, strength and durability as the original factory component.
The WG9114930210/1 Fifth Wheel is a critical safety component for your Howo tractor unit. A worn or damaged fifth wheel can cause trailer detachment, loss of control and serious accidents. Replacing it with this genuine OEM-grade fifth wheel restores secure trailer coupling and safe towing.
Manufactured from high-strength cast steel with a hardened locking jaw, a precision-machined coupling plate and a corrosion-resistant finish, the WG9114930210/1 offers outstanding load capacity, wear resistance and long-term durability. Its exact OEM fit ensures straightforward installation and reliable performance.
Fleet operators benefit from reduced towing downtime, lower maintenance costs and improved vehicle safety. Owner-operators gain peace of mind knowing their trailer is coupled to a fifth wheel that meets strict OEM standards and is backed by a comprehensive warranty.
Order the WG9114930210/1 Fifth Wheel today and keep your SINOTRUK Howo towing safely for years to come.
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