--- product_id: 102043524 title: "3674 4-Pole Waterproof Brushless Sensorless Motor - 2200KV" brand: "hobbystar" price: "HK$710" currency: HKD in_stock: true reviews_count: 3 category: "Hobby Star" url: https://www.desertcart.hk/products/102043524-3674-4-pole-waterproof-brushless-sensorless-motor-2200kv store_origin: HK region: Hong Kong --- # 1800W peak power Waterproof versatile design 4-pole, 12-slot high torque 3674 4-Pole Waterproof Brushless Sensorless Motor - 2200KV **Brand:** hobbystar **Price:** HK$710 **Availability:** ✅ In Stock ## Summary > ⚡ Power, Precision, and Waterproof Performance — Dominate Every Terrain! ## Quick Answers - **What is this?** 3674 4-Pole Waterproof Brushless Sensorless Motor - 2200KV by hobbystar - **How much does it cost?** HK$710 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/102043524-3674-4-pole-waterproof-brushless-sensorless-motor-2200kv) ## Best For - hobbystar enthusiasts ## Why This Product - Trusted hobbystar brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Ready-to-Run Convenience:** Pre-installed 4.0mm gold-plated bullet plugs mean zero soldering—just plug and dominate. - • **Unmatched Torque & Speed:** 74mm length can + 4-pole design delivers blistering 50,000 RPM and 1800W power for next-level performance. - • **Efficiency Meets Endurance:** High-purity copper windings and ultra-thin 0.35mm stator laminations maximize power output while keeping temps low. - • **Built to Brave the Elements:** Waterproof construction lets you push limits in any environment without fear of failure. - • **Precision Engineering for Smooth Control:** ABEC5 oversized bearings and precision balanced rotor ensure silky smooth, vibration-free operation. ## Overview The HobbyStar 3674 4-Pole Waterproof Brushless Sensorless Motor is a high-performance 2200KV motor engineered for RC enthusiasts demanding extreme torque and speed. Featuring a robust 74mm can, waterproof design, and pre-installed gold-plated connectors, it delivers up to 1800W power and 50,000 RPM with smooth, efficient operation. Ideal for versatile applications, it combines durability with precision engineering to keep you ahead of the pack. ## Description Buy HobbyStar 3674 4-Pole Waterproof Brushless Sensorless Motor - 2200KV: Complete Motors - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: Would buy again - Awesome motor. Running a 45 tooth pinion on a 73 spur 48pitch paired with a hobbywing max10 sct and 2 gens ace 4000mah 2s lipos (4s) it held up to 83mph on my rustler multiple times without hesitation or getting hot. Probably 6 passes balls out and was still wanting more. motor with hold up to 6s power and put a smile on your face. Quality build and quality performance. Good work. Review: Good motor - Came in today. Used it on my traxxas T-maxx conversion to electric. I used a 3s lipo for about 45 minutes. Motor did not get hot. So far so good. ## Features - HobbyStar 3674 4-pole brushless motor features a 74mm length can which provides incredible torque, and versatile waterproof design allows use in a variety of applications. Motor leads come with pre-installed 4.0mm gold-plated bullet plugs for easy, no-soldering connection. - Features: 4-pole motor with 12-slot high-torque design High-purity copper windings maximize efficiency High-RPM ABEC5 oversized bearings Precision balanced rotor for smooth operation and maximum RPM Super-thin (0.35mm) stator laminations - Specs: KV: 2200 Max Voltage: 5S Rotor Poles: 4 Max Amps: 80A IO: 4.0A Resistance: 0.0076 Watts 1800W Max RPM: 50,000 Length: 74mm Diameter: 36mm Weight: 290g Shaft: 5.0mm x 17mm Connectors: 4mm bullet - Voltage recommendations in chart are guidelines for the voltage you can safely run. It is still critical that the user monitor motor temps and adjust gearing if necessary, any motor can overheat to the point of destruction if over-geared even when running at or below the rated voltage. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07MWHJVZL | | Best Sellers Rank | #1,345,247 in Toys & Games ( See Top 100 in Toys & Games ) #6,556 in RC Electric Motors | | Brand | HobbyStar | | Brand Name | HobbyStar | | Customer Reviews | 4.6 out of 5 stars 12 Reviews | | Horsepower | 1800 Watts | | Item Weight | 290 Grams | | Manufacturer | HobbyStar | | Material | Copper | | Material Type | Copper | | Model Name | 3674 | | Part Number | 375-20-220 | | Speed | 50000 RPM | | UPC | 688977145513 | | Voltage | 5 Volts | ## Product Details - **Brand:** HobbyStar - **Model Name:** 3674 - **Speed:** 50000 RPM - **Voltage:** 5 Volts - **Horsepower:** 1800 Watts ## Images ![3674 4-Pole Waterproof Brushless Sensorless Motor - 2200KV - Image 1](https://m.media-amazon.com/images/I/41vLAu+ho6L.jpg) ![3674 4-Pole Waterproof Brushless Sensorless Motor - 2200KV - Image 2](https://m.media-amazon.com/images/I/31QGH3vmcwL.jpg) ![3674 4-Pole Waterproof Brushless Sensorless Motor - 2200KV - Image 3](https://m.media-amazon.com/images/I/31khDz9p7BL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Would buy again *by D***K on November 18, 2019* Awesome motor. Running a 45 tooth pinion on a 73 spur 48pitch paired with a hobbywing max10 sct and 2 gens ace 4000mah 2s lipos (4s) it held up to 83mph on my rustler multiple times without hesitation or getting hot. Probably 6 passes balls out and was still wanting more. motor with hold up to 6s power and put a smile on your face. Quality build and quality performance. Good work. ### ⭐⭐⭐⭐⭐ Good motor *by S***L on April 21, 2020* Came in today. Used it on my traxxas T-maxx conversion to electric. I used a 3s lipo for about 45 minutes. Motor did not get hot. So far so good. ### ⭐⭐⭐⭐⭐ Good quality *by A***R on July 14, 2019* Sweet motor. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hk/products/102043524-3674-4-pole-waterproof-brushless-sensorless-motor-2200kv](https://www.desertcart.hk/products/102043524-3674-4-pole-waterproof-brushless-sensorless-motor-2200kv) --- *Product available on Desertcart Hong Kong* *Store origin: HK* *Last updated: 2026-07-14*