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4. Shaft seals These seals prevent fluid from leaking along the shaft of the pump. They play a vital role in protecting the pump from contamination and maintaining the hydraulic fluid’s integrity.

4. O-rings These versatile seals are commonly used in various locations within the hydraulic system to provide tight sealing where needed.

Additionally, using OEM (Original Equipment Manufacturer) seal kits ensures compatibility with your specific excavator model. While aftermarket options may be tempting due to lower prices, they often come with risks such as improper fit or subpar material quality that can lead to premature failure.