Crank replacement for a left hand opening casement window made by TRUTH, 4 arms.

Handy Person from West Vancouver

Aug 20, 2026 11:56 am

This is a mechanism that opens on the left. I can't locate any model number other than the date manufactured. The main gear arm is quite wobbly and causes the window to jerk to the left when opening from fully closed position.

3 user uploaded images

2 Replies

Bob from SWISCO

Aug 22, 2026 3:48 pm

Hey there. Start by looking at the 39-220B and 39-221B. See if these match what you have. For covers and handles, see the 39-375 and 39-376.

Detail of 39-220B