The Oil Filter Cap Kit consists of a spring, bypass valve, seal-O-ring, and Hex bolts. The spring provides the necessary tension to keep the cap securely in place, and the bypass valve regulates the flow of oil in the event of a clogged or restricted filter. The O-ring seal provides a reliable and leak-proof seal between the oil filter cap and the hydraulic tank. Attributes:• Helps to maintain constant pressure on the filter element• Withstands the pressure encounters in the hydraulic tankApplications:The Oil Filter Cap Kit is used for the service and maintenance of the hydraulic oil filter cap, provides a secure closure, prevents bypass of unfiltered oil, and maintains the integrity of the hydraulic unit.