Taco 555-050RP Zone Valve Power Head Replacement Part

Works well, easy install, straight replacement of the old one.

Purchased this as a replacement for an existing zone value powerhead that was broken and has been on the boiler for over 30 years. We have a 3 zone furnace and the one that was not working was confirmed to be burned out as the photo is shown. This zone device necessary for the proper opening and closing of a valve to allow hot water to be circulated throughout a radiator based heating system. I confirmed this item was the exact same item and it fit the existing setup perfectly. Quick shipping and fast installation! A must for any boiler based system and heat was attained properly throughout the system. Also if you install this make sure to purge/bleed any air from the system prior to starting the furnace or it will not work. I also added a manual heat-only thermostat as this system doesn't require any fancy battery operated unit.

Perfect fit and function.

This zone valve was so easy to replace almost anyone could do it! I put it in and have had no problem all winter. A heater repair guy would probably charge $300-400 to do this job. Took me 15 minutes!

This is easy to replace – the hydronic system remains sealed, so just remove the 3 wires, and rotate CW hard. Install the new one reverse way.The one removed was only about 5 years old, the other 3 zone valves are still original at 25 yrs.The one that failed had extruded the thermal wax, but did not burn out the heater. It was also difficult to operate manually, so here’s hoping it didn’t fail prematurely due to some problem in the valve itself. With large pump pliers I ‘worked’ the valve operator a few times. It moved easy enough, and was smooth.The replacement works, but I think it still requires excessive force to rotate the actuator into position. So I still wonder how long this one might last.

Fits and works.

Great product! Shipped fast and extremely easy to install right out of the box.

Easy fix and easy troubleshoot. I have a 5 zone boiler and in the past 13 years had to swap out two of these valves. Amazon makes it easy to buy and the price is good. 9 out of 10 times if your zone is not getting heat it is a bad zone valve. First check the thermostat, turn it up and check the panel to see if the indicator light goes on, if so then manually open the valve by pulling down the zone valve lever, if your line then gets heat you know there isn't a clog in the line so now you know it is a bad valve. Do not pay a plumber, buy the new valve head, you don't need the entire valve, just the head. Turn boiler electric off. Make note where the wires go, usually 3 wires, remove wires from old valve, do a quarter turn, remove old head and install new head, connect wires, turn boiler back on and your heat will work again. When my new boiler was installed the plumber explained to me that these valves go bad and showed me how to replace them. A plumber will charge you $400 for this easy fix