o-ring- oversize - 66-84 BT/ 57-85 XL : rockershaft (4

Oversized O-ring seal for use in problem situations. Oversized replacement for Athena 979962 (OEM reference 11101) standard sized O-ring. 66-84 B.T.; 57-85 XL (NU): Rockershaft (4 used).  L79-85 XL (NU): Pushrod upper & lower (8 used).  L79-84 B.T. (NU): Pushrod upper (4 used).  41-86 4-sp B.T.; 54-79 XL (NU): Kickstart shaft.  65-86 B.T. (NU): O-ring, oil deflector plate (1 used).