Fuze 540 4P 3900kv SCT Sensorless Brus

The Dynamite Fuze 540 4-Pole Sensorless Brushless Motor (3 900 Kv, model DYN4950) delivers powerful, smooth performance optimized for 1/10-scale off-road vehicles—especially short course trucks. With a rugged build and high efficiency design, it’s a solid upgrade that fits 540/550 motor mounts seamlessly.

Features

• 3 900 Kv rating—balanced for quick throttle response and strong top-end speed
• 4-pole sensorless design—reduces cogging and delivers smoother, more controlled acceleration
• Direct-fit replacement for 540 and 550 motors with a matching mount pattern
• Durable construction with ball bearings, hardened steel 5 mm shaft, and pre-installed bullet connectors
• High-efficiency—produces approximately 250 W with up to 89% efficiency

Included

• Dynamite Fuze 540 brushless motor (3 900 Kv, model DYN4950)

What’s Needed

• Compatible sensorless brushless ESC
• 2–4 S LiPo battery and appropriate gearing, depending on your application

Specifications

• Type: 540-size sensorless brushless motor
• Kv Rating: 3 900 Kv
• Power Output: ~250 W
• Efficiency: ~89%
• Shaft Diameter: 5 mm (hardened steel)
• Connector: Bullet-type (pre-installed)
• Weight: ~182 g