G99970100640
24 required.
Known as: o-ring / sealing ring / gasket guide tube
R99970100640
Blue silicone material.
Fitment: 356 1950-64, 912 1965=69
S99970100640
D P H Rubber Viton (green) O-ring for Porsche 356, 911, 912, 914, 928, 930, 944
RNLA70100640
O-ring. 7 required per 356, 24 required per 911, & 6 required per 914.
Fitment: 356 1950-64, 911 1965-69, 914 1970-76