Overview
T-Motor Navigator MN3515 KV400 is a brushless UAV motor designed for multirotor, VTOL, and fixed-wing UAV applications. It uses a navigator design concept for stable, smooth, and durable operation, with a self-cooling design intended to improve efficiency and power.
Key Features
- Qualified EZO bearing (original imported) to improve motor service life and steady low-velocity running
- Oversized bearings (twice the size of standard motors) for smooth low-speed operation and stability under load
- Flexible mounting holes design; standard 25*25mm mounting holes for compatibility with many frames
- Super balance; high strength construction
- Motor maintenance: regularly lubricate bearings to reduce friction and wear
- Prop adapter: M6 prop adapter included; prop adapter surface is knurled
Specifications
| Model | MN3515 |
| KV | 400KV |
| Max. thrust | 3.4kg |
| MTBF | About 1000 hours |
| Bearing | EZO bearing |
| Mounting holes | Standard 25*25mm mounting holes; flexible mounting holes |
| Prop adapter | M6 (adapter: 6*8, CA004) |
| Hardware note | 2pcs screw M3*12 (2pcs) are for installing T-Motor CF prop with the plat cover; not for mounting the motor to the frame |
Applications
Multi-rotors, VTOL, and fixed-wing UAVs.
What’s Included
- 1x T-MOTOR MN3515 Motor KV400
- 1x Hardware pack
Matching Guide
T-MOTOR P16*5.4 Prop / Air 40A 2-6S ESC
For ordering support and compatibility questions, contact support@rcdrone.top or visit https://rcdrone.top/.
Details

The MN Series Navigator motors are designed for multirotor UAV power systems where dependable operation matters.

A multirotor aerial platform with a mounted camera gimbal supports stable filming and inspection flights.

The T-Motor MN3XXX series motor includes a prop adapter kit and hardware and uses an EZO bearing for steady low-speed operation.

T-Motor’s flexible mounting hole layout, including a standard 25×25mm pattern, helps fit a range of frame mounts.

The T-Motor M6 prop adapter set includes a knurled adapter, cover, and M3x12 screws for mounting compatible CF props.

The 6×8 (CA004) M6 prop adapter pairs with matching T-Motor carbon fiber props for a secure motor mount setup.
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