The unit I bought was sold by Maintak. I can't say whether you will get the same unit from other sellers. But the one I received looked like a genuine Honeywell unit. See the five pictures. The first two show the new unit against an existing one, from two different angles. Even the specs labeling looks like the real thing.
The end switch on my old zone valve started to exhibit bad contacts, and it kept getting worse. When the thermostat called for heat, 9 out of ten times the end switch would not make on first attempt, even though the actuator motored worked, gears turned, and the valve actually opened fully. The end switch was pressed in completely by the metal tab, but contact wasn't made. Sometimes half way through the air handling churning cold air, the end switch would make contact and turn on the furnace. Sometimes it doesn't.
It wasn't worthwhile to try to replace just the end switch. It is said that by the time the end switch fails, other parts of the actuator part may be ready to retire as well. So I bought an entire unit, but used only the actuator part. The replacement took very little time. But that's because I watched a few YouTube videos ahead of time. You should too. See pictures 3 through 5 for the replacement. See picture 3 for the comparison of valve bodies, old and new - but I continue to use the old valve body. Quick tip: manually open the valve with the manual lever, before you try to pull the actuator assembly off the valve body, and when installing the new actuator back. It releases the tension between the two components, making your work a breeze.
After the replacement, the end switch reliably makes every single time. And I now have spare parts for everything else beside the failed end switch. Considering the ease of replacement, and the quality of components, plus the money I didn't have to pay a plumber to do the work, it was a no-brainer to just replace the entire actuator myself, even if only the end switch failed.
| Material | Brass Body And Seat, Stainless Steel Stem, Buna-N |
|---|---|
| Brand | Honeywell |
| Item Dimensions LxWxH | 2.5 x 3.5 x 4 inches |
| Inlet Connection Size | 0.75 Inches |
| Inlet Connection Type | Sweat |
| Outlet Connection Type | Sweat |
| Number of Ports | 2 |
| Manufacturer | Honeywell |
| Part Number | V8043E1012/U |
| Item Weight | 1.84 pounds |
| Product Dimensions | 2.5 x 3.5 x 4 inches |
| Item model number | V8043E1012/U |
| Is Discontinued By Manufacturer | No |
| Thickness | 1 Inches |
| Item Package Quantity | 1 |
| Included Components | Honeywell Braukmann Sparco V8043E1012/U 3/4" Honeywell Zone Valve |
| Batteries Included? | No |
| Batteries Required? | No |
