Features: Engineered for 10K trailer axles, this heavy duty rubber oil seal delivers outstanding leak proof performances across extreme temperatures ( 40°F to 300°F), preventing deformation and fluid loss during long term operations. accuracy molded from thermally stable rubber with reinforced wear layers, the seal features exact OEM specifications for effortless installation on 10K shaft systems without modification requirements. Ideal for commercial fleet operators, owners, and trailer maintenance professional seeking stable sealing solution for heavy load transport vehicles and frequent use towing equipment. Performs optimally in challenging conditions including rough terrains, temperature fluctuations, and continuous high pressure scenarios common in country logistics and construction site operations. Its compliant rubber composition meets J200 standards while providing 2X longer service life than conventional seals, reducing replacement frequency and environmental effect in sustainable transportation systems. Specifications: Component : rubber Diameter: about 9.86cm/3.88inch Thickness: about 1.24cm/0.49inch Part number: 010-056-00 Package Includes: 4xAxle Oil Seal note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.