AZ2203210737 is a 12-speed transmission small cover assembly with original factory matching quality, suitable for Sinotruk Howo HW25712 and other models. It adopts a high-strength cast aluminum housing with excellent compression and shock resistance as well as superior sealing performance, completely preventing gearbox oil leakage and seepage. The internal transmission parts are precisely machined to ensure smooth gear shifting and light control, effectively reducing driving fatigue. With original factory standard and strong compatibility, it is easy to install. It greatly improves the stability and service life of the gearbox, adapts to complex working conditions, and features reliable quality and high cost performance.
AZ2203210737 Малая крышка в сборе
AZ2203210737 is a dedicated small cover assembly for Sinotruk 12-speed gearboxes. As the core actuating mechanism of gearbox control, it integrates gear shift rocker arms, shaft sleeves and sealing components.
Made of high-quality cast aluminum and processed by precision forging and aging treatment, it features a solid structure and strong deformation resistance. The seals are made of oil-resistant rubber, adaptable to high-temperature and high-pressure environments for long-term leakage prevention.
It fits 12-speed gearbox models of Sinotruk HOWO, SITRAK and other series. With accurate mounting dimensions, it can directly replace original parts, ensuring precise gear shifting and reliable gearbox operation, and extending the service life of the equipment.






