The best vent damper motor assembly is one that matches your existing damper model, replacement part number, and electrical specifications. The options below are compatible with various Field Controls GVD models, but they are not interchangeable with every boiler. Chddorn is a feature-rich option with a keyed harness, Virego emphasizes troubleshooting guidance, and ApruNresi and MornZorn provide broad model lists and installation reminders. Check the label on your old motor and confirm compatibility with your boiler manufacturer before ordering.
| Product | Best suited for | Key detail |
|---|---|---|
| chddorn 46491600 assembly | Buyers seeking a keyed connector | Lists 24 VAC, 60 Hz, 80 mA |
| Virego GVD-6 motor | Buyers comparing symptoms before replacement | Includes troubleshooting notes |
| ApruNresi GVD-RMA PL | Buyers checking a broad range of GVD models | Lists replacement part numbers |
| MHGG 46491600 assembly | Buyers seeking a simple replacement motor | Describes a two-screw installation |
| MornZorn GVD-RAM PL | Buyers who want installation reminders | Notes keyed plug and blade alignment |
chddorn 46491600 Vent Damper Motor Assembly
This assembly is listed as a replacement for Field Controls 46491600 and 381-800-476 GMA-PL motors, as well as part number 510-512-346. The stated model range includes GVD-5, GVD-6, and GVD-4PL through GVD-12PL models. Its listed electrical specification is 24 VAC, 60 Hz, and 80 mA.
Best for: Buyers whose existing motor matches the listed part numbers and who value a keyed quick-connect harness. The listing describes a plastic base and installation using two screws. Limitation: Compatibility still depends on the damper and boiler; verify the model rather than relying on appearance alone.
Virego GVD-6 Compatible Vent Damper Motor
Virego identifies this motor as compatible with GVD-6, GVD-5, and GVD-4PL through GVD-12PL dampers. It also lists 510-512-346 and 381-800-476 as replacement part numbers. The stated specifications are 24 VAC, 60 Hz, and 80 mA, with a plastic base.
Best for: Buyers who want troubleshooting context before replacing a motor. The listing advises checking wiring and linkage, and inspecting the blade and shaft for binding or debris if the damper stalls. Limitation: A motor replacement may not address a wiring, linkage, or mechanical obstruction problem. Disconnect power and shut down the appliance before servicing.
ApruNresi GVD-RMA PL Replacement Motor
This replacement is listed for GVD-5, GVD-6, and GVD-4PL through GVD-12PL dampers. The product information also names 381-800-476 and 510-512-346 as substitute part numbers. Its stated electrical rating is 24 volts AC, 60 Hz, and 80 mA, and the base is described as plastic.
Best for: Buyers comparing a replacement against a wide range of GVD model numbers. The listing cautions buyers to confirm the boiler model and position the damper correctly during installation. Limitation: The product is intended for listed GVD-style applications, so it should not be assumed to fit a different damper family.
MHGG 46491600 Boiler Damper Motor
MHGG describes this assembly as a motorized vent damper component that opens and closes in response to boiler thermostat signals. The listing says installation uses two screws and wire connections. It also presents replacing the motor, rather than the entire damper, as an option when the motor is damaged.
Best for: Buyers seeking a straightforward motor replacement and who have confirmed that this assembly matches their existing unit. Limitation: The provided product details do not give a specific GVD model range or electrical rating. Confirm those details with the seller or boiler manufacturer before purchase.
MornZorn GVD-RAM PL Motor Assembly
MornZorn lists compatibility with GVD-5, GVD-6, and GVD-4PL through GVD-12PL models, and replacement for 510-512-346 and 381-800-476 motors. Its stated rating is 24 VAC, 60 Hz, and 80 mA. The listing describes a lightweight plastic base and notes that the plug is keyed.
Best for: Buyers who want explicit reminders to match the motor to the damper and align the plug correctly. The listing advises allowing the damper to cycle into position rather than manually turning the blade. Limitation: Improper alignment or handling can damage the motor or blade, so follow the appliance instructions or use a qualified technician.
Buying Guide: How To Choose A Vent Damper Motor Assembly
Does the replacement match your existing motor?
Start with the part number printed on the old motor and the model number on the damper. Several options above list 46491600, 381-800-476, and 510-512-346, but verify the exact match. A broad compatibility list is useful for screening products, not a guarantee that an assembly fits every boiler.
Which electrical specifications should you check?
Many of these listings specify 24 VAC, 60 Hz, and 80 mA. Compare the rating with the existing motor and the boiler documentation. MHGG’s supplied details do not state a voltage or model range, so those specifications need confirmation before purchase.
Can you replace only the motor?
A replacement motor may be appropriate when the motor is damaged and the damper assembly itself is sound. However, a damper that does not move can also have wiring, linkage, blade, or shaft problems. Check the appliance guidance and avoid assuming that every failure requires a new motor.
What should you know about installation?
Some listings describe two-screw mounting and a keyed connector. The exact procedure depends on the appliance and replacement part. Shut down the boiler and disconnect power before servicing. Do not force the damper blade or connector; consult a qualified heating professional if you are unsure.
Frequently Asked Questions
What does a vent damper motor assembly do?
It moves the vent damper between open and closed positions as part of the boiler’s operating sequence. The product listings describe operation in response to boiler control or thermostat signals.
Are 46491600 and 381-800-476 interchangeable?
Several listed products identify both numbers as compatible or replacement references. Confirm the number on your existing assembly and check with the boiler manufacturer before ordering.
Should I replace the whole damper if the motor fails?
Not necessarily. Some listings describe replacing only the motor, but first determine whether the damper body, blade, wiring, and linkage are in serviceable condition.
Can I turn the damper blade by hand during installation?
One listing specifically cautions against manually turning the blade and recommends letting it cycle into position. Follow the instructions for your appliance and replacement assembly.
What if the damper opens intermittently?
Check the appliance’s troubleshooting guidance and have wiring, linkage, and blade movement inspected. Intermittent operation alone does not prove that the motor is the only cause.