{"product_id":"emax-ecoii-4320-brushless-motor","title":"EMAX ECOII 4320 Brushless Motor","description":"\u003ch2\u003eEMAX ECOII 4320 Brushless Motor\u003c\/h2\u003e\n\u003cp\u003eThe EMAX ECOII 4320 is a high-torque, large-format brushless motor built for long-range FPV platforms, heavy-lift multirotors, and cinematic builds running 13\"–15\" propellers on 6S to 12S battery configurations. Built around a 12N14P stator with a Ø50.6 × 68.7mm profile, 6mm steel shaft, and 30×30mm 4×M4 mounting pattern, the ECOII 4320 delivers smooth, sustained power across four KV options — from 350KV on 12S down to 500KV on 6S.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eStator configuration: 12N14P\u003c\/li\u003e\n\u003cli\u003eAvailable KV ratings: 350KV \/ 380KV \/ 420KV \/ 500KV\u003c\/li\u003e\n\u003cli\u003eOptimized for 13\"–15\" propellers on 6S–12S builds\u003c\/li\u003e\n\u003cli\u003e6mm steel bearing shaft with CW thread\u003c\/li\u003e\n\u003cli\u003eM6 prop adapter shaft thread\u003c\/li\u003e\n\u003cli\u003e30×30mm — 4×M4 mounting pattern\u003c\/li\u003e\n\u003cli\u003e400mm 16AWG silicone wire leads\u003c\/li\u003e\n\u003cli\u003ePrecision bearings and anodized finish\u003c\/li\u003e\n\u003cli\u003eMulti-strand winding for smooth, efficient power delivery\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKV \/ Cell \/ Propeller Guide\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e350KV\u003c\/strong\u003e — 8S–12S — 13\"–15\" props (HQ1308, HQ1309, GF1310, HQ1507, HQ1510)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e380KV\u003c\/strong\u003e — 8S–12S — 13\"–15\" props (GF1309, HQ1507, GF1308)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e420KV\u003c\/strong\u003e — 8S — 13\"–15\" props (HQ1309, HQ1507, 1507)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e500KV\u003c\/strong\u003e — 6S — 15\" props (1507, 1510, HQ1507, GF1507)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMotor Model: ECOII 4320\u003c\/li\u003e\n\u003cli\u003eFramework: 12N14P\u003c\/li\u003e\n\u003cli\u003eDimensions: Ø50.6 × 68.7mm\u003c\/li\u003e\n\u003cli\u003eWeight (with wire): 298g\u003c\/li\u003e\n\u003cli\u003eBearing Shaft: 6mm\u003c\/li\u003e\n\u003cli\u003eProp Adapter Shaft Thread: M6\u003c\/li\u003e\n\u003cli\u003eShaft Thread: CW\u003c\/li\u003e\n\u003cli\u003eLead: 16AWG 400mm\u003c\/li\u003e\n\u003cli\u003eMounting: 30×30mm — 4×M4\u003c\/li\u003e\n\u003cli\u003eKV Options: 350KV \/ 380KV \/ 420KV \/ 500KV\u003c\/li\u003e\n\u003cli\u003ePeak Current (350KV @ 6S): 82.1A | Max Power: 3847W\u003c\/li\u003e\n\u003cli\u003ePeak Current (380KV @ 6S): 69.3A | Max Power: 3274W\u003c\/li\u003e\n\u003cli\u003ePeak Current (420KV @ 6S): 82.5A | Max Power: 2556W\u003c\/li\u003e\n\u003cli\u003ePeak Current (500KV @ 6S): 74.7A | Max Power: 1797W\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePackage Includes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e4× M4×12 screws\u003c\/li\u003e\n\u003cli\u003e1× Steel M6 nylock nut\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0371\/2814\/2907\/files\/ECOII-4320_Motor_basic_information_V1.0.png?v=1787084267\" alt=\"\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0371\/2814\/2907\/files\/ECOII-4320_Motor_specifications_V1.0.png?v=1787084276\" alt=\"\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0371\/2814\/2907\/files\/ECOII-4320-350KV-Load_test_parameters.jpg?v=1787084287\" alt=\"\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0371\/2814\/2907\/files\/ECOII-4320-380KV-Load_test_parameters.jpg?v=1787084300\" alt=\"\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0371\/2814\/2907\/files\/ECOII-4320-420KV-Load_test_parameters.jpg?v=1787084311\" alt=\"\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0371\/2814\/2907\/files\/ECOII-4320-500KV-Load_test_parameters.jpg?v=1787084324\" alt=\"\"\u003e\u003c\/p\u003e","brand":"Emax USA","offers":[{"title":"350KV","offer_id":48192621576428,"sku":null,"price":40.99,"currency_code":"USD","in_stock":false},{"title":"380KV","offer_id":48192621609196,"sku":null,"price":40.99,"currency_code":"USD","in_stock":false},{"title":"420KV","offer_id":48192621641964,"sku":null,"price":40.99,"currency_code":"USD","in_stock":false},{"title":"500KV","offer_id":48192621674732,"sku":null,"price":40.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0371\/2814\/2907\/files\/4320-350KV_3.jpg?v=1787084129","url":"https:\/\/shop.emax-usa.com\/products\/emax-ecoii-4320-brushless-motor","provider":"Emax USA","version":"1.0","type":"link"}