Overhaul the Senco SCN65.
Note 1: This kit does NOT cover the SN60/65 Stick Nailers, only the SCN60 SCN65
Note 2: There are newer and older SCN65’s, this kit covers both. But the newer gun has a very tough plastic driver ring #LB0901
NOT included in this kit. The driver o-ring for the older gun should work as a replacement as the 2 nailers share the same cylinder.
Also, the older SCN60 SCN65 used a different BF0204 piston bumper. Let me know before hand if you think you have the older version