V Complete Seal Kit Packing Assembly, 20mm each kit services one piston. You will need to purchase 2 to repair one pump.
This kit comes with the packing and the brass.
Hotsy Part Number: 877685
This is the OLD style complete seal kit.
Want to update to the NEW style? Buy part number 87254080. You will need to purchase 2 each of this Complete Packing Kit to update your existing pump. This packing kit will fit pumps: HC165, HC165R, HC165A, HC168R