440 Timer Case Empty, pn 1031737, old pn 420N66.
OBSOLETE Part, No Longer Available.
Recommend buying new 440iHV Complete Timer Assembly.


Timer Assembly can be replaced with the complete new 440iHV we sell.
It will fit on all Autotrol 155, 163, 168, and most 255, 263, and 268 valves.
If you have a 440 or 460 timer now, then you can replace with 440i version Timer Assembly.
NOTE: The Back Plates for the 440i versions will NOT work as a replacement for the 440 Housing ( which has become an Obsolete part ).