Part # 396344 is no longer available from the manufacturer.

RIGHT UPPER BODY ARM
$48.99
Description
Compatible With the Following Equipment:
Proform Ergostride Elliptical – PFEL04817.1, Proform 525 Cse%2B Elliptical – PFEVEL74917.1, Proform 525 Cse%2B Elliptical – PFEVEL74917-CH.1