In addition, they are able to absorb vibration and shock, which minimizes noise and wear of parts during operation, ensuring the stability of the jack. Complete Kit: The kit provides 17 parts, including a safety valve seal ring, an oil plug, a 16-pump core dust cap, two 16-pump core fine rings, a 16-pump core coarse ring, two 13-pump core O-rings, and other O-rings with various sizes.
