On both the OE pump from our RT and the new one just out to check the rod,
1-5/8" from flange face to tip and 1-1/2" to wear witness mark.

Hope this helps, Joe

PS measurements on Comp Cams pump rods:
Comp's #4646, with tip for roller cam, 3.211" (new in package)
Comp's #4626, out of Engine w/knock, showing acceptable tip wear, 3.222"

Last edited by jlatessa; 10/20/16 01:19 PM.