{"product_id":"upgrade-8664rp-8663rp-bathroom-fan-motor-replacement-quiet-100cfm","title":"Upgrade 8664RP 8663RP Bathroom Fan Motor Replacement - Quiet 100CFM","description":"\u003cp\u003eIn this review the Cylrod Upgrade 8664RP 8663RP motor assembly is evaluated as a straightforward replacement for Nutone and compatible bathroom exhaust fans. The bottom line: this motor is for homeowners and installers who need a direct-fit, quieter replacement that restores airflow without rewiring or extensive modification. It stands out because the motor uses a pure copper winding and is rated at \u003cstrong\u003e100 CFM\u003c\/strong\u003e, delivering solid airflow while operating at a lower noise level than many older OEM units.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide compatibility:\u003c\/strong\u003e Fits a long list of Nutone B unit models and many common replacements, reducing the hassle of confirming fit for older vents.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuiet operation:\u003c\/strong\u003e Rated at 3.5 sones so it removes moisture and odors with noticeably less noise compared with older, louder motors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUpgrade motor construction:\u003c\/strong\u003e Pure copper windings improve electrical conductivity and heat dissipation versus older aluminum-wound motors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete kit:\u003c\/strong\u003e Ships with the replacement motor, grounding clip, fan wheel and motor isolation block for a full, ready-to-install swap.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimple installation:\u003c\/strong\u003e The motor can be swapped in about 10 minutes for anyone comfortable with basic electrical safety and screwdrivers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTested and supported:\u003c\/strong\u003e The unit is factory tested and comes with a three-year service promise for repair or replacement on qualifying defects.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis motor is best for homeowners, plumbers, electricians, and DIYers who have an older Nutone or similar bathroom exhaust fan that has lost performance or become noisy. Because it is a direct-fit replacement for many B unit models, it is especially useful where matching the exact part number is difficult due to discontinued OEM motors.\u003c\/p\u003e\n\u003cp\u003eIt is not ideal for someone seeking a high-end ultra-quiet or variable-speed retrofit; if you need a fan that is quieter than 3.5 sones, or integrated smart controls, a modern replacement fixture or a dedicated low-sones model would be a better choice.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEasy to install and fits many Nutone model numbers, making replacement quick.\u003c\/li\u003e\n\u003cli\u003eQuieter than many older OEM motors, providing usable airflow at a lower noise level.\u003c\/li\u003e\n\u003cli\u003ePacked as a full assembly with wheel, isolation block and grounding clip for convenience.\u003c\/li\u003e\n\u003cli\u003ePure copper construction improves durability and heat handling over older designs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRated at 3.5 sones, it is quieter than very old units but not as silent as premium low-sones fans.\u003c\/li\u003e\n\u003cli\u003eCompatibility is broad but installers should still verify physical fit for unusual housings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eAirflow\u003c\/td\u003e\n\u003ctd\u003e100 CFM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNoise level\u003c\/td\u003e\n\u003ctd\u003e3.5 sones\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpeed\u003c\/td\u003e\n\u003ctd\u003e1460 RPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eElectrical\u003c\/td\u003e\n\u003ctd\u003e120V, 0.19 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded parts\u003c\/td\u003e\n\u003ctd\u003eMotor, grounding clip, fan wheel, motor isolation block\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003ePure copper winding\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e3-year service\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Cylrod Upgrade 8664RP 8663RP is a pragmatic, cost-effective replacement motor for Nutone-style bathroom fans: it restores \u003cstrong\u003eairflow\u003c\/strong\u003e reliably, runs quieter than many aged originals, and is supplied as a complete assembly for fast installation. For anyone needing a dependable repair without replacing the whole fixture, it offers good value and long-term durability thanks to copper windings and a three-year service policy.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill this motor fit my Nutone B unit?\u003c\/strong\u003e\u003cbr\u003eIt fits a wide range of Nutone B unit models listed in the product details, but verify the B unit shape and mounting points to ensure a physical fit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow quiet is this motor in normal use?\u003c\/strong\u003e\u003cbr\u003eIt is rated at 3.5 sones, which is noticeably quieter than many older OEM motors but not as quiet as premium low-sones fans.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat comes in the replacement kit?\u003c\/strong\u003e\u003cbr\u003eThe kit includes the replacement motor, grounding clip, fan wheel and motor isolation block for a straightforward swap.\u003c\/p\u003e","brand":"Cylrod","offers":[{"title":"Default Title","offer_id":48614973440219,"sku":"B0D6RNGPJX","price":36.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/714ZWdIAWCL._SL1500.jpg?v=1778361391","url":"https:\/\/gearmusthave.com\/products\/upgrade-8664rp-8663rp-bathroom-fan-motor-replacement-quiet-100cfm","provider":"GearMustHave","version":"1.0","type":"link"}