Hobbywing QuicRun Outer 1621SL 3500KV 1/24 Crawler Motor Black HW30404850

The Hobbywing QuicRun Outer 1621SL 3500KV is a compact brushless sensorless motor for 1/24 scale RC crawlers, suited to micro crawler builds needing smooth low-speed control and lightweight power.

This small-scale crawler motor is designed to pair with the Hobbywing QuicRun WP Mini24 ESC for a compact 2S to 3S brushless setup. The low cogging design, precision-balanced rotor, silicone wire outlet and multiple M2 mounting hole pitches make it a practical upgrade motor for compatible 1/24 crawler platforms.

Features

• 1/24 Crawler Motor: Designed for micro crawler applications where compact size and low-speed control matter
• 3500KV Brushless Power: Provides a suitable KV rating for compatible 1/24 scale crawler setups
• Sensorless Design: Works with compatible sensorless brushless ESC systems
• QuicRun WP Mini24 Pairing: Designed to pair with the Hobbywing QuicRun WP Mini24 ESC
• Smooth Low-Speed Control: Low cogging torque and reduced torque pulsation help improve slow crawling feel
• Precision-Balanced Rotor: Helps reduce vibration and efficiency loss during operation
• Silicone Wire Outlet: Makes wiring cleaner and easier compared with stiff direct wire outlets
• High Mounting Compatibility: Includes M2 mounting hole patterns with 9mm, 10mm and 12.5mm pitches
• Modular Design: Allows easier disassembly, cleaning and maintenance
• Durable Internal Construction: Uses high-performance iron core, high-temperature enameled wire and precision bearings

Specifications

• Brand: Hobbywing
• Model: QuicRun Outer 1621 SL
• SKU: HW30404850
• Manufacturer Part Number: 30404850
• Barcode: 6938994412308
• Product Type: RC brushless motor
• Scale Suitability: 1/24 scale crawlers
• Motor Type: Brushless sensorless
• KV Rating: 3500KV
• LiPo Cells: 2S to 3S
• No-Load Current: 0.6A
• Maximum Output Power: 39.1W, retailer listed
• Current At Maximum Output: 9.52A, retailer listed
• Outer Diameter: 15.8mm
• Length: 21mm
• Shaft Diameter: 2.0mm
• Shaft Length: 9mm, retailer listed
• Pole Count: 12
• Weight: 16.7g
• Colour: Black
• Recommended ESC: Hobbywing QuicRun WP Mini24
• Mounting Hole Pitch Options: M2 holes with 9mm, 10mm and 12.5mm spacing

Includes

• 1 x Hobbywing QuicRun Outer 1621SL 3500KV brushless motor in black

FAQ

What scale does the Hobbywing HW30404850 motor suit? The Hobbywing HW30404850 QuicRun Outer 1621SL motor is designed for 1/24 scale RC crawler applications.

What ESC should be used with this motor? Hobbywing lists the QuicRun WP Mini24 ESC as the recommended ESC pairing for the QuicRun Outer 1621SL motor.

Is this motor sensored or sensorless? The Hobbywing QuicRun Outer 1621SL is a brushless sensorless motor.

Will this fit my micro crawler? OZRC recommends checking motor diameter, motor length, shaft diameter, shaft length, mounting hole spacing, pinion fitment and ESC compatibility before ordering.

Important Notes

• Designed for compatible 1/24 scale crawler applications.
• Requires a compatible brushless sensorless ESC, battery, receiver and radio system.
• Hobbywing recommends pairing this motor with the QuicRun WP Mini24 ESC.
• Check pinion bore, motor mount spacing, gear mesh and body clearance before installation.
• Use gearing suitable for your vehicle weight, tyre size, terrain and battery voltage to avoid overheating.
• Motor only. ESC, pinion gear, battery, charger, receiver, vehicle, tools and mounting hardware are not included unless shown separately.