Found the serial number L 485

Your 20 is a 1928

"Neil" wrote:

Jason, which Twenty has parts in common with the 22?

The small ones share undercarriage parts, and maybe trans & finals, but I'm not 100% on that. I don't think I have a small twenty parts book to confirm.

i have a set of tracks, fuel tank and 4 complete cylinders. <a href="This email address is being protected from spambots. You need JavaScript enabled to view it." target="_blank">This email address is being protected from spambots. You need JavaScript enabled to view it. located in Connecticut

I am looking small spring used for oil relief in the oil filter housing for a Twenty.

Part# 0L-1148
.047 Wire Diameter
.560 OD
3.750 Long
35 1/2 coils

Checked over a dozen spring places locally and on internet with no luck being a common size. Part has been discontinued by Cat and no longer available. Before going through process of making new spring, reaching out to see if one is still around in new condition.

Thank you