Two piece pack of end cap oil seals sized 18 x 4 mm. This item provides a compact sealing solution for small housings and shafts, helping to retain lubricant and prevent the ingress of dust and moisture. The two seals per pack offer a convenient replacement option and consistent performance in compatible assemblies. Key benefits Keeps lubrication in and contaminants out in small diameter applications Two seals per pack for easy replacement and sustained sealing performance Simple, direct fit for 18 x 4 mm end cap seal requirements Maintains reliable operation in compact machinery and equipment Key attributes Size: 18 x 4 mm (typical end cap oil seal sizing) Quantity: 2 pieces Functionality: seals end caps to retain lubricant and prevent ingress of contaminants Compatibility: designed for applications requiring an 18 x 4 mm end cap oil seal Material: not specified in the product title Performance: intended to provide dependable sealing in suitable end cap seals Usage and installation notes Verify that the seal size matches the bore and cap dimensions in your equipment Clean the seating surfaces before installation and press the seal evenly to avoid damage Apply a light lubricant if recommended by the equipment manufacturer Use cases Sealing the end cap in smalldiameter hydraulic or pneumatic assemblies that require an 18 x 4 mm oil seal Replacing worn end cap seals in compact gearboxes, small motors, or hobby machinery that use 18 x 4 mm seals Restoring lubrication retention and protecting internal components in miniature assemblies with end cap sealing needs This description reflects the product's stated size, quantity, and core purpose as an end cap oil seal set. Please refer to your part number or equipment specifications to confirm exact material and fit before use.