Our Part# SM4405
OEM# SM22086 or 22086
Compatible with NGS part number ST1163
Stepmill-Requires 18 per side panel.
Compatiable OEM: SM22847, 140-3493
This part can be used on the following model(s):
Stairmaster - SM5_Stepmill_150005
Stairmaster - SM916_(Metal_Steps)