{"product_id":"coleman-mach-rv-ac-fan-blade-6733-3221-11-in-4-blade","title":"Coleman Mach RV AC Fan Blade 6733-3221, 11 In 4-Blade","description":"\u003cp class=\"nvn-hero\"\u003eThis is the genuine Coleman replacement fan blade for Mach rooftop air conditioners, part number 6733-3221. It's an 11-inch, four-blade fan with a 40-degree pitch and a 1\/2-inch bore, spec'd to the original so it spins true and pushes full airflow. Fits a wide run of Mach models across the 6700, 7000, 8000, and 48000 series.\u003c\/p\u003e\n\n\u003cdiv class=\"nvn-description\"\u003e\n\u003cp\u003eWhen the fan on your Coleman Mach rooftop air conditioner starts wobbling, rattling, or throwing off less air than it used to, the blade is usually the culprit. This is the genuine Coleman replacement fan blade, part number 6733-3221, built to drop straight into a long list of Mach units without any guesswork.\u003c\/p\u003e\n\u003cp\u003eIt's an 11-inch, four-blade fan with a 40-degree pitch and a 1\/2-inch bore. Those numbers matter. The pitch is what moves the air across the coil, and the bore has to match your motor shaft exactly or the blade won't seat right. Get a blade with the wrong bore and it'll never balance, no matter how carefully you tighten the set screw. This one is spec'd to the original, so it spins true and pushes the same airflow the unit had when it was new.\u003c\/p\u003e\n\u003cp\u003eColeman used this same blade across a huge run of rooftop units over the years, both ducted and non-ducted. It fits Mach models including the 48203, 48204, 48207, 48208, 48213, 48253, 48254, 48257, 48263, 48264, and 48268, along with the 7000 and 8000 series and many of the 6700-series cassettes. If your model number is on the box or stamped on the shroud, cross-check it against the fitment list before you order.\u003c\/p\u003e\n\u003cp\u003eWhy does a fan blade fail? Usually it's age. Years of heat cycling make the plastic brittle, and a hairline crack near the hub throws the whole assembly out of balance. You'll hear it first as a low hum or a vibration through the ceiling, then it gets worse. A cracked or warped blade also drags on the motor, and a dragging motor runs hot and dies early. Swapping the blade is a lot cheaper than replacing the whole air conditioner.\u003c\/p\u003e\n\u003cp\u003eIf you're comfortable pulling the shroud and you've got a nut driver, this is a job you can knock out in an afternoon. Kill the power at the breaker first. Note how the old blade sits on the shaft before you pull it, match the depth, and snug the set screw against the flat of the shaft. That's it. Spin it by hand to check for clearance before you button it back up.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul class=\"nvn-features\"\u003e\n  \u003cli\u003e11-inch four-blade fan moves full-rated airflow across the evaporator coil\u003c\/li\u003e\n  \u003cli\u003e40-degree blade pitch matched to the Coleman Mach original for correct air delivery\u003c\/li\u003e\n  \u003cli\u003e1\/2-inch bore seats directly on the factory motor shaft, no adapter needed\u003c\/li\u003e\n  \u003cli\u003eGenuine Coleman replacement, manufacturer part number 6733-3221\u003c\/li\u003e\n  \u003cli\u003eFits dozens of Mach rooftop models across the 6700, 7000, 8000, and 48000 series\u003c\/li\u003e\n  \u003cli\u003eBalanced construction spins true and keeps the fan motor from running hot\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv class=\"nvn-trust\"\u003e\n  \u003ch2\u003eWhy Buy from NVN Marine\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eAuthorized Coleman reseller, full manufacturer warranty\u003c\/li\u003e\n    \u003cli\u003eNMEA member and ABYC certified, advice from real boat techs\u003c\/li\u003e\n    \u003cli\u003eSame-day shipping before 3 PM ET on in-stock items\u003c\/li\u003e\n    \u003cli\u003eNY headquarters and Fort Lauderdale flagship retail store\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"nvn-faq\"\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat size is this Coleman Mach fan blade?\u003c\/summary\u003e\n    \u003cp\u003eIt's an 11-inch diameter blade with four blades and a 40-degree pitch. The bore, where it slides onto the motor shaft, is 1\/2 inch.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this a genuine Coleman part?\u003c\/summary\u003e\n    \u003cp\u003eYes. It's the Coleman replacement fan blade, manufacturer part number 6733-3221.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow do I know if it fits my air conditioner?\u003c\/summary\u003e\n    \u003cp\u003eCheck your unit's model number against the fitment list. It covers a wide range of Mach models including the 48203 through 48268, the 7000 and 8000 series, and many 6700-series units. Match your number before ordering.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhy would a fan blade need replacing?\u003c\/summary\u003e\n    \u003cp\u003eMost fail from age. Years of heat cycling make the plastic brittle, and a small crack near the hub throws the fan out of balance. That shows up as a hum or a vibration through the ceiling and can make the motor run hot.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eCan I install it myself?\u003c\/summary\u003e\n    \u003cp\u003eIf you can pull the shroud and use a nut driver, yes. Cut power at the breaker first, note how the old blade sits on the shaft, match that depth, and tighten the set screw against the flat of the shaft. Spin it by hand to check clearance before you close it up.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDoes it work on both ducted and non-ducted Mach units?\u003c\/summary\u003e\n    \u003cp\u003eThe same blade was used across both ducted and non-ducted rooftop units in the listed model range. Confirm your model number against the fitment list to be sure.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"nvn-specs\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003cth\u003eTitle\u003c\/th\u003e\n\u003ctd\u003eColeman Mach RV Air Conditioner Fan Blade\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eColeman\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003ctd\u003e6733-3221\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eUPC\u003c\/th\u003e\n\u003ctd\u003e755790406449\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003ePart Type\u003c\/th\u003e\n\u003ctd\u003eFan Blade\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eNumber of Blades\u003c\/th\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eBlade Diameter\u003c\/th\u003e\n\u003ctd\u003e11 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eBlade Pitch\u003c\/th\u003e\n\u003ctd\u003e40 degrees\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eBore Size\u003c\/th\u003e\n\u003ctd\u003e1\/2 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003ctd\u003eRV Rooftop Air Conditioner\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n    \"@context\": \"https:\/\/schema.org\",\n    \"@type\": \"FAQPage\",\n    \"mainEntity\": [\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What size is this Coleman Mach fan blade?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's an 11-inch diameter blade with four blades and a 40-degree pitch. The bore, where it slides onto the motor shaft, is 1\/2 inch.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Is this a genuine Coleman part?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes. It's the Coleman replacement fan blade, manufacturer part number 6733-3221.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How do I know if it fits my air conditioner?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Check your unit's model number against the fitment list. It covers a wide range of Mach models including the 48203 through 48268, the 7000 and 8000 series, and many 6700-series units. Match your number before ordering.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Why would a fan blade need replacing?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Most fail from age. Years of heat cycling make the plastic brittle, and a small crack near the hub throws the fan out of balance. That shows up as a hum or a vibration through the ceiling and can make the motor run hot.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Can I install it myself?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"If you can pull the shroud and use a nut driver, yes. Cut power at the breaker first, note how the old blade sits on the shaft, match that depth, and tighten the set screw against the flat of the shaft. Spin it by hand to check clearance before you close it up.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Does it work on both ducted and non-ducted Mach units?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"The same blade was used across both ducted and non-ducted rooftop units in the listed model range. Confirm your model number against the fitment list to be sure.\"\n            }\n        }\n    ]\n}\n\u003c\/script\u003e\n","brand":"Coleman","offers":[{"title":"Default Title","offer_id":45073061642333,"sku":"2009336","price":42.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/files\/ImageServerAPI_69c9b1f7-f258-40e5-bdfb-50ccfd8a3ed0.jpg?v=1789760158","url":"https:\/\/nvnmarine.com\/products\/coleman-mach-rv-ac-fan-blade-6733-3221-11-in-4-blade","provider":"NVN Marine","version":"1.0","type":"link"}