{"product_id":"surpass-hobby-kk-3674-1900kv-2250kv-2500kv-waterproof-brushless-motor-for-1-8-1-10-rc-cars","title":"Surpass Hobby KK 3674 Waterproof Sensorless Brushless Motor 1900\/2250\/2500KV for 1\/8 1\/10 RC Cars","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThe Surpass Hobby KK 3674 is a waterproof, sensorless brushless motor designed for 1\/8 and 1\/10 RC cars. It features a CNC-machined 6061-T6 aluminum heatsink can, high-purity copper windings, and a precision-balanced rotor for smooth, efficient power delivery.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e4-pole, 12-slot high-torque motor design\u003c\/li\u003e\n\u003cli\u003eCNC-machined 6061-T6 aluminum heatsink can\u003c\/li\u003e\n\u003cli\u003eHigh-purity copper windings to maximize efficiency\u003c\/li\u003e\n\u003cli\u003eHigh-RPM ABEC5 oversized bearings\u003c\/li\u003e\n\u003cli\u003ePrecision-balanced rotor for smooth operation and reliable high RPM\u003c\/li\u003e\n\u003cli\u003e0.35 mm stator laminations\u003c\/li\u003e\n\u003cli\u003eRemovable\/replaceable rotor\u003c\/li\u003e\n\u003cli\u003e4.0 mm gold-plated connectors\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSURPASS HOBBY\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eKK\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor Size\u003c\/td\u003e\n\u003ctd\u003e3674\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKV Options\u003c\/td\u003e\n\u003ctd\u003e1900KV \/ 2250KV \/ 2500KV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWatts\u003c\/td\u003e\n\u003ctd\u003e1800 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Voltage\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;22.2V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Current\u003c\/td\u003e\n\u003ctd\u003e80 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax RPM\u003c\/td\u003e\n\u003ctd\u003e50000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRotor Poles\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor Diameter\u003c\/td\u003e\n\u003ctd\u003e35.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor Length\u003c\/td\u003e\n\u003ctd\u003e73 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShaft Diameter\u003c\/td\u003e\n\u003ctd\u003e5.0 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShaft Length\u003c\/td\u003e\n\u003ctd\u003e17 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnector\u003c\/td\u003e\n\u003ctd\u003e4.0 mm gold-plated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor Weight\u003c\/td\u003e\n\u003ctd\u003e298 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eESC Specifications (when selecting 120A ESC Combo)\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eESC Model\u003c\/td\u003e\n\u003ctd\u003eKK 120A ESC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContinuous\/Burst Current\u003c\/td\u003e\n\u003ctd\u003e120A\/600A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor Type\u003c\/td\u003e\n\u003ctd\u003eSensorless brushless motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery\u003c\/td\u003e\n\u003ctd\u003e3-6S LiPo \/ 9-18 cells NiMH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBEC Output\u003c\/td\u003e\n\u003ctd\u003e6.1V\/3A (switch mode)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eAvailable Options\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e3674 1900KV Motor\u003c\/li\u003e\n\u003cli\u003e3674 2250KV Motor\u003c\/li\u003e\n\u003cli\u003e3674 2500KV Motor\u003c\/li\u003e\n\u003cli\u003e3674 1900KV Motor + 120A ESC Combo\u003c\/li\u003e\n\u003cli\u003e3674 2250KV Motor + 120A ESC Combo\u003c\/li\u003e\n\u003cli\u003e3674 2500KV Motor + 120A ESC Combo\u003c\/li\u003e\n\u003cli\u003eKK Programming Card\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1\/8 and 1\/10 electric RC cars requiring a 3674-size sensorless brushless motor\u003c\/li\u003e\n\u003cli\u003eRC racing and off-road builds where waterproof electronics are preferred\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf help is needed choosing the right KV option or combo for a specific RC car setup, contact support@rcdrone.top or visit https:\/\/rcdrone.top\/.\u003c\/p\u003e\n\u003ch2 id=\"details\"\u003eDetails\u003c\/h2\u003e\n\u003cdiv class=\"details-gallery\"\u003e\n\u003cbr\u003e\n\u003cp\u003eChoose 1900KV, 2250KV, or 2500KV to match your 1\/8 or 1\/10 RC car gearing and battery setup.\u003c\/p\u003e\n\u003cimg alt=\"Surpass Hobby KK 3674 motor with KK 120A ESC combo and included connectors, 1900KV\/2250KV\/2500KV options\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Surpass-Hobby-KK-3674-Waterproof-Sensorless-Brushless-Motor_ceb30f60-bdf6-458b-a60a-0378a0fa80fc.webp?v=1785336960\"\u003e\n\u003cp\u003eCombo options bundle the 3674 motor with the KK 120A ESC for a clean, ready-to-wire power system.\u003c\/p\u003e\n\u003cimg alt=\"Close-up of KK 3674 brushless motor showing 6061-T6 aluminum heatsink can, output shaft, and 4mm gold plugs\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Surpass-Hobby-KK-3674-1900KV-2250KV-2500KV-Waterproof_3453e456-1a70-4134-91bb-e07087bf8d57.webp?v=1785336590\"\u003e\n\u003cp\u003eA CNC-machined aluminum heatsink can and 4.0mm gold-plated connectors support efficient, reliable power delivery.\u003c\/p\u003e\n\u003cimg alt=\"KK 36 series waterproof brushless motor features graphic highlighting high-purity copper windings and balanced rotor design\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Surpass-Hobby-KK-3674-1900KV-2250KV-2500KV-Waterproof_2f1efc9d-b21e-4b02-b184-08b86389d69c.webp?v=1785336599\"\u003e\n\u003cp\u003eHigh-purity copper windings and a precision-balanced rotor are built for smooth RPM and strong torque under load.\u003c\/p\u003e\n\u003cimg alt=\"Surpass Hobby KK 3674  1900KV 2250KV 2500KV Waterproof Brushless Motor for 1\/8 1\/10 RC Cars\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0643\/3210\/3904\/files\/ScreenShot_2026-07-29_223711_561.png?v=1785336090\"\u003e\u003cimg alt=\"KK 3674 motor dimension diagram and specification table including shaft length and mounting measurements for RC installs\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/Surpass-Hobby-KK-3674-1900KV-2250KV-2500KV-Waterproof_19753ea9-540a-467b-a2af-5ad61d24fd40.webp?v=1785336642\"\u003e\n\u003cp\u003eInstall planning is easier with the detailed size drawing and fitment measurements for 3674 motor mounts.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Surpass Hobby","offers":[{"title":"3674 1900KV Motor","offer_id":53736151810272,"sku":"KK3674-Motor-1","price":49.0,"currency_code":"USD","in_stock":true},{"title":"3674 2250KV Motor","offer_id":53736151843040,"sku":"KK3674-Motor-2","price":49.0,"currency_code":"USD","in_stock":true},{"title":"3674 2500KV Motor","offer_id":53736151875808,"sku":"KK3674-Motor-3","price":49.0,"currency_code":"USD","in_stock":true},{"title":"3674 1900KV Motor + 120A ESC Combo","offer_id":53736151908576,"sku":"KK3674-Motor-4","price":115.0,"currency_code":"USD","in_stock":true},{"title":"3674 2250KV Motor + 120A ESC Combo","offer_id":53736151941344,"sku":"KK3674-Motor-5","price":115.0,"currency_code":"USD","in_stock":true},{"title":"3674 2500KV Motor + 120A ESC Combo","offer_id":53736151974112,"sku":"KK3674-Motor-6","price":115.0,"currency_code":"USD","in_stock":true},{"title":"KK Programming Card","offer_id":53736152006880,"sku":"KK3674-Motor-7","price":19.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0643\/3210\/3904\/files\/O1CN01Zt4UdX20ZJCPrDaAZ__696176863.webp?v=1785336016","url":"https:\/\/rcdrone.top\/hi\/products\/surpass-hobby-kk-3674-1900kv-2250kv-2500kv-waterproof-brushless-motor-for-1-8-1-10-rc-cars","provider":"RCDrone","version":"1.0","type":"link"}