Need to replace crank #31850 and the rusted arm and guide

Thanks for posting. For the operator, see if the 39-315 matches what you have. Review the diagram below and let me know if anything differs. For a crank handle that works with this operator, see the 39-114L sold separately.

Alternate image for 39-315

For the window hinge, see our stainless steel 10" 36-004-10 set. Compare the dimensions to your old hinges to ensure it matches up. Let me know if you have further questions.

DImensions for 36-004-10