AZ2203210737 Small Cover Assembly With Left Booster

AZ2203210737 Small Cover Assembly With Left Booster

AZ2203210737 is a dedicated left-mounted booster small cover assembly for Sinotruk 12-speed transmissions and serves as the core control component of the gearbox.
It adopts a forged housing made of high-quality cast aluminum with aging treatment, featuring excellent deformation resistance and impact resistance. Built with an internal left-mounted pneumatic booster cylinder and matched with high-precision shift rocker arms and shaft sleeves, it ensures efficient transmission and effortless gear shifting.
The seals are made of oil-resistant rubber, suitable for high-temperature and high-pressure environments to achieve long-term leak-proof performance.
Compatible with 12-speed models such as Sinotruk HOWO T7H and SITRAK C7H, it features original factory quality and requires no modification during installation, ensuring stable and reliable gearbox operation.
AZ2203210737 is a 12-speed transmission left-mounted booster small cover assembly, originally matched for Sinotruk HOWO, SITRAK, HW25712 and other models.
It integrates a left-mounted pneumatic booster mechanism, which greatly reduces shifting force, delivers light and effortless operation, and relieves driving fatigue.
The high-strength cast aluminum housing features shock resistance and durable construction. Its precise sealing structure effectively prevents oil and air leakage.
Internal transmission parts are precision machined with clear gear positions and smooth shifting.
With original standard dimensions, it supports direct replacement and easy installation. Suitable for complex working conditions, it is durable, stable and cost-effective.
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