Thanks for reaching out to us! Your casement window operator appears to be the 39-031 EntryGard Dual Arm Operator; the opposite handed version is the 39-032. To determine if this is the correct replacement, carefully review and compare the dimensions below.
The compatible cover is the 39-107 Truth Hardware Operator Cover used along with the 39-114L non-folding or 39-205 folding crank handles. Another option is the 39-107FK Truth Folding Handle and Cover Kit
To replace these operators there is a chance you will need to remove the wood sill. Take a look at the video tutorial below for an idea on how to replace this operator.
