Honeywell 40003918-006 Conversion / Repair Kit
The Honeywell 40003918-006 has two uses:
1) As a conversion kit to use a new 40003916-001 replacement powerhead on an old style (pre 1986) V4043 or V8083 motorised valve.
A motorised valve that does not require this kit can be identified by a bump on the top of the powerhead.
2) Used to replace the innards on new style V4043H valve bodies. For example where the valve body is sticking or seized.