New OEM Simplicity Part Number 1685499.
Seat Base Kit, has rust 1- 1709307 Seat Base;
2- 1704299 1.25" Spacer .34"ID x .56"OD x 1.24"L;
2- 1709308 Compression SPRING .82"ID x .97"OD x 1.47"L x .06"...
SPACER Bushing, split side wall.
1.12"ID x 1.25"OD x .48"W.
72027011, 2027011, 164173, Replaced by 2164173SM.
This number and part don't appear to match up correctly, especially the width.
Differential COVER Flange hub. 2-1/2" ID X 6-1/2" OD and these are my measurements.
8 Holes in both surfaces, total 16.
171854, 72027912, 1602370, 1652170, 2171854 Replaced by 2171854SM: COVER-DIFF...