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1-The Zone Valves Actuator Motor Replaces Part Number as fellows: 40003916-026, 40003916-021, U 40004850-001.
2-Specifications
Voltage: 24VFrequency: 50/60Hz
Used With Valve: Two-way
Electrical Connections: screw terminal block
Electrical Connection Location: Same side of manual lever
Aux Switch Ratings: 4.4 A running @ 120V
Maximum Ambient Temperature: 125F
Used With Valve: Two-way
Electrical Connections: screw terminal block
Electrical Connection Location: Same side of manual lever
Color: silver
AGP
2025-08-21 11:06:50
If you're buying it you know what it is and need it.. Genuine Honeywell part. My old one 2014? had the microswitch go bad. Unbolted motor/control assembly, easy wire and swap. Identical to orig part. Good price, easily a 500$ service call.
Customer
2025-07-25 18:13:07
It was a very good buy. The same item in a plumbing supply was 35.00 more. It worked perfectly. I had to buy a adapter due to my motor being installed in 1979.
LS California
2025-07-06 15:42:15
Perfect replacement for a Honeywell unit
Matt Stettler
2025-06-10 10:31:33
The item's internal mechanism was bent and the motor drive gear does not mesh properly with the actuation assembly. While the item was unusable as is, I was able to remove the active elements (motor and limit switch) to rebuild my existing unit.
HowieM
2025-04-24 15:56:27
Fits ok works so far. Time will tellâ¹
C. P.
2025-01-31 11:21:57
It was exactly what needed to be replaced. One of the zone valves on my 1982 shop boiler quit opening, and replacing the old actuator with this one fixed the issue.
Bob c
2025-01-13 15:06:10
It workedFirst one didn't I will b returning it
Tom K
2025-01-02 09:57:22
Replacement was easy to install - two screws and 4 wires. Is working as desired.
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