This countershaft drive gear, model AZ2210030228, is an original core transmission part with 33 standard external teeth and structural specification of 15.5. Made of 20CrMnTi alloy steel and processed by quenching and tempering, carburizing quenching and precision grinding, it owns high rigidity, great fatigue resistance and anti-deformation performance. High-precision gear teeth ensure tight meshing without jumping teeth, reducing vibration and noise effectively. Rust and corrosion resistant surface withstands oil and moisture. Strictly inspected to OEM standards, it is directly applicable for transmission maintenance with stable performance under long-term heavy load.
AZ2210030228 Countershaft Drive Gear (External 33 Teeth, 15.5)
AZ2210030228 countershaft drive gear fits the countershaft assembly of Sinotruk HW series transmission, with 33 external teeth and specification of 15.5. It is precisely forged of high-strength alloy steel and processed by carburizing and quenching heat treatment, featuring high tooth surface hardness, excellent wear and impact resistance, and no tooth breakage under heavy load. Precision ground gear teeth ensure uniform meshing clearance, smooth transmission, low noise and low power loss. With original standard size and high coaxiality, it is compatible with Howo and Sitrak models, directly replacing old parts and adapting to severe working conditions of mountain heavy load and long-distance transportation.