Carrier 330426-410 Motor Arm Assembly

Q: What is the Carrier 330426-410?

It is a Carrier MOTOR ARM AND GROMMET ASSY: a right-angle metal arm with a black rubber grommet, used to mount a blower motor and absorb its vibration.

Q: How do I tell the 330426-410 from the 330426-405 and 330426-407?

The 330426-410 is a right-angle arm with a black grommet. The 330426-405 is a right-angle arm with a tan grommet, and the 330426-407 is a shallow-bend arm with a black grommet. Confirm the stamped number and the nameplate model and serial number before ordering.

Q: Should I replace the arm when only the grommet looks worn?

The grommet comes fitted to the arm as one assembly, so the 330426-410 replaces both at once. That also removes any bent or cracked arm from the list of noise causes.

Carrier

$24.73

The Carrier 330426-410 Motor Arm and Grommet Assembly is the OEM motor mounting arm with a black rubber grommet already installed, sold as a complete Carrier factory assembly. In the factory photo it is a right-angle (L-shaped) arm of zinc-colored folded metal with a round black grommet at the end of the short leg. It is part of the 330426 family of motor arms, next to the 330426-401, 330426-403, 330426-405, 330426-406, 330426-407, 330426-408, 330426-409 and 330426-411, and each of those dash numbers is a separate part.

The shape and the grommet color are your first visual check. The 330426-405 is also a right-angle arm, but with a tan grommet, while the 330426-407 has a shallow bend with a black grommet. The 330426-410 combines the right-angle bend with the black grommet. Treat that as a quick screen only: the reliable match is the number stamped on the old arm plus the model number and serial number from the equipment nameplate. When the old arm reads 330426-410, this is the current Carrier assembly for it.

On a blower assembly the arm locates the motor at the correct height and shaft alignment to the blower wheel, and the grommet is the rubber isolator that keeps motor vibration out of the cabinet. When the rubber hardens, flattens or soaks up oil, or the arm bends or cracks at the bend, the motor shifts and the unit starts to hum, buzz or rattle, sometimes with wheel rub. Inspect the arm and grommet before replacing the motor. To install, lock out the power, support the motor, mark the arm orientation, fit the 330426-410, tighten the fasteners without crushing the grommet, turn the wheel by hand and confirm quiet, smooth running on a test cycle.

Key Benefits

Right-angle arm, black grommet: The 330426-410 has a distinct look, so it is easy to compare against the old arm on the bench.
OEM Carrier assembly: Supplied as the genuine Carrier 330426-410 with the grommet already fitted.
Cuts blower noise: A new isolation grommet keeps motor vibration from traveling into the cabinet and ductwork.
Holds the motor true: A straight arm keeps the shaft aligned to the blower wheel and takes load off the bearings.

Common Questions

What is the Carrier 330426-410?
It is a Carrier MOTOR ARM AND GROMMET ASSY: a right-angle metal arm with a black rubber grommet, used to mount a blower motor and absorb its vibration.

How do I tell the 330426-410 from the 330426-405 and 330426-407?
The 330426-410 is a right-angle arm with a black grommet. The 330426-405 is a right-angle arm with a tan grommet, and the 330426-407 is a shallow-bend arm with a black grommet. Confirm the stamped number and the nameplate model and serial number before ordering.

Should I replace the arm when only the grommet looks worn?
The grommet comes fitted to the arm as one assembly, so the 330426-410 replaces both at once. That also removes any bent or cracked arm from the list of noise causes.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.