This differential pinion oil seal (Part No. 1522895) is a precision-engineered sealing component specifically designed for heavy-duty truck and bus differential systems. Installed at the pinion shaft where it meets the differential housing, it creates a critical barrier that prevents gear oil leakage and blocks the ingress of dust, moisture, and other contaminants. Manufactured from high-performance elastomer materials with exact dimensional tolerances, this seal is engineered to withstand high speeds, heavy loads, and demanding operating conditions over extended service intervals. As a direct OEM replacement for part number 1522895, it is cross-referenced with 15228950, 7401522895, 943141, 9431412, and numerous aftermarket equivalents.

• High-efficiency sealing – Utilizing highly elastic, oil-resistant rubber materials, the seal tightly conforms to the rotating shaft surface, effectively preventing gear oil leakage and ensuring stable internal lubrication of the differential

• Superior contamination exclusion – Effectively blocks dust, moisture, and impurities from entering the differential, protecting internal gears and bearings from abnormal wear

• High temperature and wear resistance – Maintains excellent sealing performance under high speed, high load, and high temperature conditions, reducing the risk of failure due to friction and material aging

• Extended differential lifespan – Prevents contamination and lubricant loss, reducing wear on critical drivetrain components and improving overall reliability

• Adaptable to harsh operating conditions – Suitable for long-term use in complex road conditions and continuous operating environments, widely applicable to commercial vehicles, heavy trucks, construction machinery, and agricultural equipment

• Dual lip design – The 12/20 mm height configuration provides enhanced sealing performance with primary and secondary sealing lips for maximum protection

• Direct OEM replacement – Interchangeable with original part number 1522895 and cross-referenced with multiple industry part numbers