AC22102100130 is an original factory small cover assembly for 12-speed transmissions, compatible with Sinotruk HOWO, SITRAK and other HW25712 series models.
It adopts a high-strength cast aluminum housing processed by precision forging and aging treatment, featuring excellent shock and pressure resistance with strong deformation resistance.
Built with high-precision internal transmission components, it delivers light and smooth gear shifting with clear gear positions, effectively reducing driving fatigue.
Adopting original factory sealing technology and equipped with oil-resistant rubber sealing rings, it provides long-term leak-proof performance under high temperature and high pressure conditions.
With accurate mounting dimensions, it can directly replace original parts. Suitable for complex working conditions, it is durable, reliable and cost-effective.







