The OS-085-150/169-12/31.5 Corteco Oil Seal is specifically designed for large rotating assemblies such as commercial vehicle wheel hubs, industrial gearboxes, heavy-duty transmissions, and machinery. Its dual-diameter outer profile and extended depth make it ideal for applications requiring high sealing integrity, fluid retention, and contaminant exclusion.

This seal ensures long-lasting protection in extreme environments, including high-load and high-temperature conditions common in commercial transport, construction, and agricultural equipment.

Engineered by Corteco, a global OEM supplier for sealing solutions, the OS-085-150/169-12/31.5 oil seal features a dual outer diameter (150mm & 169mm) and extended axial depth (31.5mm) for a secure fit and robust sealing performance in demanding applications.

Made with NBR (nitrile rubber) and high-quality steel reinforcement, this oil seal offers excellent resistance to oil, grease, hydraulic fluids, and moderate thermal cycling. The double-lip design ensures superior sealing efficiency by blocking external contaminants and retaining internal lubrication.

This is an ideal replacement part for OEM maintenance, overhaul projects, or preventive upgrades in heavy industrial and transportation sectors.