99F Tripper Arm and Gear for Autotrol 440 and 440i Timer Assemblies.Timers labeled as 1550-TC are using the 440 timer, so this part will work for the older models too.
Obsolete item, but as of March 2024, we still have over a hundred in stock.They will be available as long as our stock holds out. NOTE: The very old version ( 86F ) of this gear had the time of day stamped on the actual Gear. The newer version we offer here is the only type now available and will work as a replacement. If your timer is so old, as to have the old 86F gear, you might be wise to replace the entire timer with the new 460TC version, since other gear or timer problems are likely to occur due to the extreme age of the parts. Click to Enlarge DiagramOr SEE > 440 and 440i Timer Repair Guide