The Sinotruk HW series gearboxes are a new type of transmission developed by China Sinotruk over 6 years, specifically for Chinese users.
Explore our full range of best-selling SINOTRUK gearboxes, including HW19710, HW20716, HW18710, HW13710, and FAST F10JZ180 series – available for all HOWO and SITRAK models.
10‑speed gearbox for Howo/Sitrak, durable and proven, ideal for replacement, overhaul, and export supply.
Reliable FAST gearbox range, compatible with Sinotruk trucks, perfect for aftermarket servicing and parts distribution.
16‑speed heavy‑duty unit for T7H/C7H, suited for fleet refurbishment, repair, and global spare parts.
Robust 10‑speed transmission for Howo models, designed for replacement, maintenance, and overseas parts supply.
Heavy‑duty 10‑speed gearbox for various Howo trucks, suitable for overhaul, repair, and export channels.
Advanced 10‑speed direct‑drive gearbox, high efficiency, for new assembly, replacement, and aftermarket needs.
The Sinotruk Howo series offers a variety of drivetrain options to meet different needs. Here are some common types of Sinotruk Howo drivetrains:
Modelos de transmision manual: HW18709, HW18710, HW18711, HW18712, HW18713, HW18714, HW18715, HW18716;
Automatic Transmission Model: HW12709A, HW12709B, HW12709C, HW12710A, HW12710B, HW12710C, HW12711A, HW12711B, HW12711C, HW12712A, HW12712B, HW12712C, HW12713A, HW12713B, HW12713C, HW12714A, HW12714B, HW12714C, HW12715A, HW12715B, HW12715C, HW12716A, HW12716B, HW12716C.
Double counterflow main frame structure: The symmetrically arranged counterflow shafts balance the radial forces on the input shaft and the main shaft gears. The input shaft and main shaft only support the torque without bending deformation; the intermediate bearing is subject to reduced bending moment, small bending deformation, and good meshing conditions.
Auxiliary frame planetary gear mechanism: This mechanism features a compact structure, low weight, high gear ratio, and high efficiency. Since one central gear meshes with five planetary gears simultaneously, the load capacity is increased.
The center gear and ring gear of the auxiliary frame are floating to ensure even load distribution on the planetary gear mechanism. The application of the auxiliary frame’s planetary gear mechanism and the rigid support of the output shaft’s large-extension bearing ensure the output shaft’s rigidity, significantly increasing the auxiliary frame gear’s service life and effectively resolving the short service life issues common in other products.
The gear sleeve and the corresponding gear spline hole are designed with large chamfers. Simultaneously, due to the floating movement of the main shaft and the main shaft gear, it plays a role in positioning and synchronization. The use of the gear sleeve reduces the failure rate of the main frame.
When the subframe shift fork shaft is not in place, the interlock plate is engaged by the shift fork shaft, locking the main frame shift fork shaft in the neutral position. Pushing the lock plate then allows the main frame to shift to the subframe and engage with the subframe as needed.
Self-locking structure
The self-locking device of the traditional operating mechanism uses a steel ball self-locking structure, which is prone to wear. The transmission adopts a sector-shaped self-locking block and a self-locking pin shaft for self-locking, and uses a sector-shaped self-locking block and housing to limit the position.
Interlock structure:
Interlocking is achieved using an interlock fork. In a neutral driving position, only the shift block is aligned with the slot in the interlock fork, and the shift block on the other shift fork shaft is locked by the inner wall of the interlock fork, remaining locked in the neutral position, thus achieving interlocking with a good interlocking effect.
Reverse gear lock:
Structurally, to ensure that reverse gear engages, it is necessary to overcome a greater spring force and the spring force of the high and low gear positioning ring to prevent accidental engagement of reverse gear.
When the interlock fork moves with the shift shaft to select a gear, it drives the spherical sliding cylinder of the double H valve to perform the high and low gear conversion. The newly adopted double H valve structure effectively solves the high failure rate due to leakage found in other double H valve products.
The HOWO transmission is found in several HOWO truck models, including:
When packing Howo transmission parts, it is important to ensure they are properly protected to prevent any damage during shipping. The following are some steps for effectively packing Howo transmission parts:
The Howo transmission is a complex and sophisticated system that transfers engine power to a vehicle’s wheels. The following is a brief description of how it works:
The cost of a Howo transmission can vary depending on several factors, such as the specific model, availability, and the seller. Therefore, it’s difficult to provide an exact price without more specific information. We recommend contacting us for precise pricing details based on your specific needs. We can provide you with up-to-date and accurate information on Howo transmission costs.
To properly use the Howo transmission in a truck, follow these general steps:
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