Product Model:

8-94161-098-1 Isuzu TFR 4JA1/4ZD1

Product Details:

1. Shoulder Structure Design: The gear features a locating shoulder, which precisely limits axial displacement during installation, preventing gear mesh misalignment and improving transmission stability.

2. High-Strength Material and Process: Made of alloy steel (such as 42CrMo), treated with carburizing and quenching, the tooth surface hardness reaches 60-62 HRC, and the tooth root strength is high, capable of withstanding continuous loads during high-speed cruising.

3. Precision Helical Gear Meshing: The gear teeth are designed with a helical profile, resulting in high meshing overlap and transmission noise ≤60dB. Simultaneously, the torque capacity is increased by 15% compared to straight gears, meeting the smoothness requirements of 5th gear high-speed operation.

4. Part number 8-94161-098-1 is the 5th gear for the Isuzu TFR 87-90 model (4JA1/4ZD1 engine) gearbox. The tooth profile, number of teeth (47T×18T), and dimensions all conform to OE standards. 5. As the 5th gear for the Isuzu TFR pickup truck (4JA1 engine) manual transmission, it meshes with the intermediate shaft gear to transmit power in the high-speed cruising gear. The gear ratio design is suitable for common vehicle speeds of 80-120 km/h. Specifically designed for 1987-1990 Isuzu TFR/PANTHER and other commercial vehicles, meeting the high-frequency, high-speed driving needs of urban delivery and long-distance freight transport.