KC2203030230 Fast Speed Single Pump Countershaft Assembly is the core auxiliary transmission part compatible with Sinotruk HW series multi-speed transmissions. Made of high-strength alloy with integral precision manufacturing and heat treatment reinforcement, it features high overall rigidity, strong torsion and bending resistance, and is not easy to deform under heavy load. The precisely ground internal gears ensure accurate and smooth meshing, high transmission efficiency and low operating noise. Designed with rational single pump structure and precise sealing fit, it is vibration-proof, anti-loose and durable. With original standard size, it can directly replace old parts and adapt to long-distance and mountain heavy-load working conditions.
KC2203030230 Countershaft Assembly, Fast Speed, Single Pump
KC2203030230 Fast Speed Single Pump Countershaft Assembly is an original OEM part for Sinotruk, integrating gears, shaft sleeves, bearings and other components with high assembly precision and uniform fitting clearance. The material is treated by quenching and tempering to balance hardness and toughness, featuring excellent fatigue resistance and bump resistance, avoiding tooth breakage and looseness under long-term heavy-load operation. Its single pump oil circuit structure matches the original hydraulic control system for sensitive shifting and stable power transmission. Complying with OEM process and quality standards with precise dimensional tolerance, it is easy to disassemble and replace, ideal for Howo and Sitrak transmission maintenance with long service life and high overall reliability.
