{"product_id":"high-output-17in-rad-fan-aluminum-shroud-pwm-powerpack-66821","title":"Derale High Output 17\" RAD Fan \u0026 Aluminum Shroud PWM Powerpack | 2400 CFM | 66821","description":"\u003cp\u003eThe Derale 66821 powerpack combines a high-output 17\" two-speed electric fan with an engineered aluminum shroud and a digital PWM fan controller. It is built for primary engine cooling and works well on thick, tight-fin radiator cores where airflow is hard to pull. The fan moves 2400 CFM on high and 1800 CFM on low using a patented ultra-quiet skewed blade, and the PWM controller varies fan speed from 0 to 100 percent for smooth, efficient operation. The raw aluminum shroud can be left as-is, polished, painted, or anodized.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFan: 17\" high output, two-speed, 265-watt motor\u003c\/li\u003e\n\u003cli\u003eAirflow: 2400 CFM (high) \/ 1800 CFM (low)\u003c\/li\u003e\n\u003cli\u003eAmp draw: 23.5 A (high) \/ 17.4 A (low)\u003c\/li\u003e\n\u003cli\u003eConfiguration: puller (engine side) only\u003c\/li\u003e\n\u003cli\u003eShroud: aluminum, 20-3\/4\" W x 17-5\/8\" H x 3\" overall depth\u003c\/li\u003e\n\u003cli\u003ePWM controller: 0-100% speed, rated up to 70 A, soft start, 20-second shutdown timer, auto-resetting breaker, A\/C override\u003c\/li\u003e\n\u003cli\u003eController components: sensor 16757, controller 16797, fan 16917\u003c\/li\u003e\n\u003cli\u003eIncluded: mounting brackets and complete mounting hardware\u003c\/li\u003e\n\u003cli\u003ePart number: 66821\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch5\u003eWhat is the Derale 66821 powerpack for?\u003c\/h5\u003e\u003cp\u003eIt is a primary cooling fan and aluminum shroud assembly with a PWM controller, suited to thick, tight-fin radiator cores.\u003c\/p\u003e\u003ch5\u003eHow much air does it move?\u003c\/h5\u003e\u003cp\u003eThe 17\" two-speed fan moves 2400 CFM on high and 1800 CFM on low.\u003c\/p\u003e\u003ch5\u003eWhat does the PWM controller do?\u003c\/h5\u003e\u003cp\u003eIt varies fan speed from 0 to 100 percent, is rated up to 70 amps, and includes soft start, a shutdown timer, an auto-resetting breaker, and A\/C override.\u003c\/p\u003e\u003ch5\u003eCan it be used as a pusher?\u003c\/h5\u003e\u003cp\u003eNo, this powerpack is for puller (engine side) applications only.\u003c\/p\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What is the Derale 66821 powerpack for?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It is a primary cooling fan and aluminum shroud assembly with a PWM controller, suited to thick, tight-fin radiator cores.\"}},{\"@type\":\"Question\",\"name\":\"How much air does it move?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The 17\\\" two-speed fan moves 2400 CFM on high and 1800 CFM on low.\"}},{\"@type\":\"Question\",\"name\":\"What does the PWM controller do?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It varies fan speed from 0 to 100 percent, is rated up to 70 amps, and includes soft start, a shutdown timer, an auto-resetting breaker, and A\/C override.\"}},{\"@type\":\"Question\",\"name\":\"Can it be used as a pusher?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No, this powerpack is for puller (engine side) applications only.\"}}]}\u003c\/script\u003e","brand":"Derale","offers":[{"title":"Default Title","offer_id":41287462682672,"sku":"BDST_66821","price":716.61,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/DER66821.jpg?v=1712608153","url":"https:\/\/berryperformancesales.com\/products\/high-output-17in-rad-fan-aluminum-shroud-pwm-powerpack-66821","provider":"Berry Performance Sales","version":"1.0","type":"link"}