{"product_id":"carrier-330426-401","title":"Carrier 330426-401 Mounting Arm","description":"\u003cp\u003eThe \u003cstrong\u003eCarrier 330426-401 Mounting Arm and Grommet Assembly\u003c\/strong\u003e is the \u003cstrong\u003eOEM motor mounting arm\u003c\/strong\u003e with its \u003cstrong\u003erubber grommet\u003c\/strong\u003e already fitted, supplied as one \u003cstrong\u003efactory replacement assembly\u003c\/strong\u003e from \u003cstrong\u003eCarrier\u003c\/strong\u003e. It sits in the \u003cstrong\u003e330426\u003c\/strong\u003e arm family, which also includes the \u003cstrong\u003e330426-403\u003c\/strong\u003e, \u003cstrong\u003e330426-405\u003c\/strong\u003e, \u003cstrong\u003e330426-406\u003c\/strong\u003e, \u003cstrong\u003e330426-407\u003c\/strong\u003e, \u003cstrong\u003e330426-409\u003c\/strong\u003e and \u003cstrong\u003e330426-411\u003c\/strong\u003e assemblies. The \u003cstrong\u003e330426-401\u003c\/strong\u003e is a small \u003cstrong\u003eHVAC blower motor mounting part\u003c\/strong\u003e, but it is the piece that \u003cstrong\u003eholds the motor in position\u003c\/strong\u003e and keeps motor vibration from reaching the \u003cstrong\u003ecabinet\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003eEvery dash number in the \u003cstrong\u003e330426\u003c\/strong\u003e family is its own part. The \u003cstrong\u003e330426-401\u003c\/strong\u003e is not interchangeable with the \u003cstrong\u003e330426-403\u003c\/strong\u003e, the \u003cstrong\u003e330426-405\u003c\/strong\u003e or the \u003cstrong\u003e330426-407\u003c\/strong\u003e just because the arms look close; the \u003cstrong\u003earm shape, bend, bolt pattern and grommet\u003c\/strong\u003e are built for particular equipment. Read the number stamped on the old arm and confirm the full \u003cstrong\u003emodel number\u003c\/strong\u003e and \u003cstrong\u003eserial number\u003c\/strong\u003e from the unit \u003cstrong\u003enameplate\u003c\/strong\u003e before you order. When the old arm is marked \u003cstrong\u003e330426-401\u003c\/strong\u003e, this is the \u003cstrong\u003ecurrent Carrier assembly\u003c\/strong\u003e for it.\u003c\/p\u003e\n\n\u003cp\u003eHere is why the pair matters. A \u003cstrong\u003eblower motor\u003c\/strong\u003e is a vibrating mass, and bolting it straight to \u003cstrong\u003esheet metal\u003c\/strong\u003e would carry that vibration into the \u003cstrong\u003ecabinet\u003c\/strong\u003e and the \u003cstrong\u003eductwork\u003c\/strong\u003e. The \u003cstrong\u003earm\u003c\/strong\u003e is the structural link that sets \u003cstrong\u003emotor position\u003c\/strong\u003e and \u003cstrong\u003eshaft alignment\u003c\/strong\u003e to the \u003cstrong\u003eblower wheel\u003c\/strong\u003e, and the \u003cstrong\u003erubber grommet\u003c\/strong\u003e is the isolator that lets the motor sit without hammering the metal. As rubber ages it \u003cstrong\u003ehardens, cracks, flattens or soaks up oil\u003c\/strong\u003e, the motor sags, and you get a \u003cstrong\u003ehum, buzz, tick or rattle\u003c\/strong\u003e that is worse at \u003cstrong\u003ehigh speed\u003c\/strong\u003e. A \u003cstrong\u003ebent or cracked arm\u003c\/strong\u003e can let the motor drift out of line, which loads the \u003cstrong\u003emotor bearings\u003c\/strong\u003e and can cause \u003cstrong\u003ewheel rub\u003c\/strong\u003e. Check the \u003cstrong\u003earm\u003c\/strong\u003e and \u003cstrong\u003egrommet\u003c\/strong\u003e before you condemn the motor. To change it, \u003cstrong\u003eshut off power at the disconnect\u003c\/strong\u003e, support the motor so it cannot drop, note the \u003cstrong\u003earm orientation\u003c\/strong\u003e and \u003cstrong\u003egrommet position\u003c\/strong\u003e, fit the new \u003cstrong\u003eassembly\u003c\/strong\u003e, snug the hardware without crushing the rubber, \u003cstrong\u003espin the wheel by hand\u003c\/strong\u003e to confirm it runs square, then restore power and listen for \u003cstrong\u003esmooth, quiet operation\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eKey Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eGrommet already installed:\u003c\/strong\u003e The \u003cstrong\u003erubber isolation grommet\u003c\/strong\u003e comes seated in the \u003cstrong\u003earm\u003c\/strong\u003e, saving bench time and keeping the \u003cstrong\u003evibration-damping geometry\u003c\/strong\u003e the way \u003cstrong\u003eCarrier\u003c\/strong\u003e built it.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eGenuine Carrier number:\u003c\/strong\u003e \u003cstrong\u003e330426-401\u003c\/strong\u003e is the \u003cstrong\u003eOEM part number\u003c\/strong\u003e, so there is no bending, drilling or field fabrication.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eQuieter blower:\u003c\/strong\u003e A fresh \u003cstrong\u003evibration-isolating grommet\u003c\/strong\u003e stops the \u003cstrong\u003emotor\u003c\/strong\u003e from buzzing against the \u003cstrong\u003ecabinet\u003c\/strong\u003e and quiets the \u003cstrong\u003educt system\u003c\/strong\u003e.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eProtects the motor and wheel:\u003c\/strong\u003e Holding the motor in its \u003cstrong\u003efactory position\u003c\/strong\u003e keeps the \u003cstrong\u003eshaft\u003c\/strong\u003e aligned with the \u003cstrong\u003eblower wheel\u003c\/strong\u003e and reduces \u003cstrong\u003ebearing wear\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eCommon Questions\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does the 330426-401 do?\u003c\/strong\u003e\u003cbr\u003e\nIt is the \u003cstrong\u003emotor mounting arm and grommet assembly\u003c\/strong\u003e. The \u003cstrong\u003earm\u003c\/strong\u003e supports and positions the \u003cstrong\u003eblower motor\u003c\/strong\u003e and the \u003cstrong\u003erubber grommet\u003c\/strong\u003e isolates its vibration from the \u003cstrong\u003ecabinet\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan I substitute a different 330426 dash number?\u003c\/strong\u003e\u003cbr\u003e\nNo. The \u003cstrong\u003e330426-401\u003c\/strong\u003e is a separate part from the \u003cstrong\u003e330426-403\u003c\/strong\u003e, \u003cstrong\u003e330426-405\u003c\/strong\u003e, \u003cstrong\u003e330426-407\u003c\/strong\u003e and the rest of the family. Match the number stamped on the old arm and verify against the \u003cstrong\u003enameplate model and serial number\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eShould I replace the grommet separately?\u003c\/strong\u003e\u003cbr\u003e\nReplace the \u003cstrong\u003earm and grommet\u003c\/strong\u003e together. \u003cstrong\u003eAged rubber\u003c\/strong\u003e loses its \u003cstrong\u003edamping\u003c\/strong\u003e, so a new \u003cstrong\u003eassembly\u003c\/strong\u003e is the right call any time the \u003cstrong\u003emotor mount\u003c\/strong\u003e is apart.\u003c\/p\u003e\n\n\u003cp\u003eDisclaimer: 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.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"Default Title","offer_id":67900979282098,"sku":"330426-401","price":21.62,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1838\/2375\/files\/ac-parts-1000x1000_d8f6c0df-eeb5-4a7f-8ee2-4f92681ea310.webp?v=1755632728","url":"https:\/\/www.gsistore.com\/products\/carrier-330426-401","provider":"GSIstore","version":"1.0","type":"link"}