WG2229000029 Cover (For Helical Gear) is a dedicated accessory for SINOTRUK transmission front housing, suitable for models with helical gear transmission structure. It is stamped and formed of high-strength steel with surface anti-rust treatment, featuring wear resistance, oxidation resistance, and resistance to deformation and cracking. The hole positions are precisely processed in accordance with original factory standards with accurate positioning and tight fitting with the front housing body for easy installation. It effectively seals the opening of the front housing, protects internal helical gears and bearing assemblies, blocks the intrusion of dust and impurities, and prevents lubricating oil leakage. With high structural strength, it can withstand operational vibration and load impact without deformation during long-term use, ensuring stable transmission operation of the gearbox. It is a reliable original factory part for maintenance and replacement.