Carrier 330426-414 Motor Arm Assembly

Q: What is the Carrier 330426-414?

It is a Carrier MOTOR ARM & GROMMET ASSY, the arm that holds a blower motor with its rubber grommet installed to absorb vibration.

Q: Do I need the motor too?

Not necessarily. Many noisy blower complaints come from a worn grommet or bent arm. Inspect the 330426-414 assembly and the motor bearings before deciding.

Q: Are the 330426 arms interchangeable?

No. Each 330426 dash number is a separate part. Match the number stamped on the old arm, and use the equipment nameplate to confirm when the stamping is illegible.

Carrier

$8.61

The Carrier 330426-414 Motor Arm and Grommet Assembly is the OEM arm that mounts a blower motor, supplied as a Carrier factory assembly with the rubber grommet already fitted. Parts listings write it as MOTOR ARM & GROMMET ASSY. It belongs to the 330426 family of motor arms, which includes the 330426-401, 330426-403, 330426-405, 330426-406, 330426-407, 330426-408, 330426-409, 330426-410, 330426-411 and 330426-412. Each dash number is a separate part, and the 330426-414 is the current number when the old arm is stamped 330426-414.

The name says what it does. The motor arm is the bracket that carries the blower motor and holds its shaft in line with the blower wheel; the grommet is the rubber bushing that lets the motor run without shaking the cabinet. Over time heat, oil and vibration harden the rubber, and a bent or cracked arm lets the motor drop or twist. Typical complaints are a buzzing cabinet, a ticking sound as the wheel touches the housing, or a blower that sounds fine on low speed and rough on high.

Replacing the 330426-414 is a repair that a technician can do quickly, but do the diagnosis first. Lock out the power, spin the wheel by hand and check for rub, then push on the motor to feel for play and look at the grommet for splits, flattening or oil. If the arm is bent, rusted or cracked, or the rubber is gone, replace the assembly. Mark the arm orientation before you remove the old one, fit the 330426-414 the same way, tighten the fasteners without crushing the grommet, and verify the wheel clearance before you restore power. Always match the stamped number and, when in doubt, the nameplate model and serial number.

Key Benefits

OEM Carrier motor arm: The genuine Carrier 330426-414, supplied with the grommet already fitted.
Fixes the cause, not the symptom: Replacing the arm and grommet together addresses motor sag, vibration and noise in one step.
Cheap compared with a motor: Checking this assembly first can save a blower motor replacement that would not have cured the noise.
Clear identification: The 330426-414 is matched by the stamped number on the old arm, so there is no guessing between dash numbers.

Common Questions

What is the Carrier 330426-414?
It is a Carrier MOTOR ARM & GROMMET ASSY, the arm that holds a blower motor with its rubber grommet installed to absorb vibration.

Do I need the motor too?
Not necessarily. Many noisy blower complaints come from a worn grommet or bent arm. Inspect the 330426-414 assembly and the motor bearings before deciding.

Are the 330426 arms interchangeable?
No. Each 330426 dash number is a separate part. Match the number stamped on the old arm, and use the equipment nameplate to confirm when the stamping is illegible.

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.