NOTICE: The pressure chamber seal in this kit will not work on all Daisy 880's. Newer models would need item #153500949565 New rebuild kit for older 880/881/922 Daisy Powerline air rifles. It will not work with newer model 880's that use a different style pressure chamber seal. The two styles of pressure chamber seals are shown in the pictures. This kit will replace the most common wear parts on the rifle. It includes new O-rings for the pump tube and pump head, new O-ring for the exhaust valve, new foam oil wiper and a new pressure chamber seal. Parts do not come with instructions. If you need more parts I have a lot parts available for the old style 880. Thanks, From the Old Style 880 Diagram the parts in this kit are #63, #30 and #25. From the pump piston diagram you will receive part #48 and #30.