| Valve Type | Zone Valve |
| Voltage | 24 Vac |
| Frequency | 50 Hz; 60 Hz |
| Electrical Connections | 18 in. leads on same side of manual lever |
| Ambient Temperature | 125 F Maximum |
| Application | Replacement Head for V Series Zone Valve |
| Used With | Valves with Action of Spring return to close |
Description
Replacement actuator head for Resideo (Honeywell Home) V8043A zone valves. When the motor in the valve fails, this part swaps onto the valve body that is already in the piping — the connections stay soldered or threaded in place and the system does not have to be drained.
Replacing the head instead of the whole valve is the difference between a fifteen-minute service call and a soldering job on a live heating system. It is the reason the V-series has stayed in the field as long as it has.
Confirm whether your valve is wired for pump start before ordering. A valve whose end-switch contacts are landed on the boiler needs a replacement head that carries the end switch; this one is specified without it.
Valves this part is built for
- Resideo V8043A1003/U 24 Vac 1/2 in Flare N.C. Zone Valve
- Resideo V8043A1011/U 24 Vac 1/2 in Sweat N.C. Zone Valve
- Resideo V8043A1227/U 24 Vac 1/2 in NPT N.C. Zone Valve
- Resideo V8043A1312/U 24 Vac 3/4 in Pro Press Zone Valve with 18 in lead wire
- Resideo V8043A5029/U 24 Vac 3/4 in Sweat N.C. QuickFit® Zone Valve
- Brand: Resideo (Honeywell Home)
- Manufacturer Part #: 40003916-021/U
- Fits: V8043A
- Voltage: 24 Vac
- End switch: No
- Category: Zone Valve Replacement Heads

