Product Introduction

The 37039Y Main Box Intermediate Shaft Front Bearing is a high-performance transmission bearing designed for FAST manual gearboxes used in SINOTRUK heavy-duty trucks. Installed at the front position of the main box intermediate shaft, this bearing provides stable shaft support, reduces friction, and ensures smooth power transmission during heavy-load operation.

Manufactured according to OEM quality standards, the 37039Y bearing uses high-quality bearing steel and precision machining technology to achieve excellent dimensional accuracy, load capacity, and wear resistance. Its reliable structure helps maintain proper shaft alignment, reduce vibration, and improve gearbox operating efficiency.

Designed as a direct aftermarket replacement component, this FAST gearbox bearing is suitable for transmission overhaul, gearbox maintenance, and repair applications. It is widely used in heavy-duty trucks, dump trucks, construction vehicles, logistics vehicles, and fleet transportation applications equipped with FAST manual transmissions.

The 37039Y bearing is an ideal replacement choice for truck repair workshops, gearbox specialists, distributors, and wholesale spare parts suppliers. With durable performance and stable quality, it helps extend gearbox service life, reduce downtime, and maintain reliable drivetrain operation.

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