V8 Throttle Cable Grommet or Insulator

Anyone have or know of a source for the throttle cable grommet or "insulator 14-25-17" as it appears to be described in the picture?
View attachment 1715182019
Okay, There was a grommet, or "insulator" on the throttle cable from the factory. It's made of a soft rubber material, not hard rubber like most grommets.
Attached are photos of an original and a repo throttle cable with an original damaged "grommet", washer and E clip.20180531_142456[1].jpg 20180602_154421[1].jpg
Note the wide space between the plate that fits against the firewall and where the E clip fits.
That is where the grommet/insulator goes.
I solved the issue of filling up that space by using Cuda Al's suggestion of using 2 rubber washers and several flat washers.