T Motor Navigator Waterproof Mn505-S 320 KV
Introducing the T-Motor Navigator Waterproof MN505-S 320 KV, a premium motor designed specifically for marine applications like underwater remotely operated vehicles (ROVs) and autonomous underwater vehicles (AUVs). Known for their exceptional motors in the drone and robotics industries, T-Motor brings the same level of performance and durability to the marine sector with this cutting-edge model.
Waterproof Protection: With a fully sealed construction, the MN505-S is built to resist water damage, making it perfect for immersion in harsh aquatic environments.
High KV Rating: Featuring a 320 KV, this motor is optimized for high-speed performance. While higher KV motors generally offer greater rotational speeds at the cost of torque, the MN505-S strikes an ideal balance for marine-based applications, ensuring optimal power and efficiency.
Compact & Lightweight: Designed to fit in space-constrained marine platforms, this motor combines a compact form factor with lightweight construction, making it an excellent choice for applications where every ounce counts.
Durable & Rugged: Built to withstand the challenges of underwater environments, the MN505-S offers unmatched reliability and longevity, even in the toughest conditions.
Superior Craftsmanship: T-Motor’s commitment to quality is evident in the use of premium materials and precision engineering, ensuring the motor performs consistently and lasts over time.
Versatile Compatibility: The MN505-S is compatible with a wide range of electronic speed controllers (ESCs), offering seamless integration across various marine vehicle platforms for versatile use.
Note: When mounting the motor, please make sure the thread inside the motor is ≤5mm.
Features:
- Strong power, long service life
- Excellent cooling performance
- Anti-high temperature/Anti-overload
- Dust-resistance/Waterproof/Anti-corrosion.
Specification:
| Stator | Imported silicon steel sheet; Anti-rust treatment; 150°Chigh temperature-resisting coatings. |
|---|---|
| Configuration | 24N28P |
| Shaft Diameter | IN: 6mm, OUT: 4mm |
| Bearing | Imported 696ZZ |
| Magnet Level | 180°C high temperature resistance: Level E |
| Silicon Cable | 16AWG*150MM |
| Copper Wire | 220°C high temperature resistance: Level C |
| Coil Insulation Test | 500V |
| Centrifugal Cooling Design | YES |
| Rotor Dynamic Balance Standard | </=5Mg |
| Motor Dynamic Balance Standard | </= 10Mg |
| IP | IP45 |
| Weight (g) | 225 (inc. cable) |
Package Includes:
1 x T Motor Navigator Waterproof Mn505-S 320 KV
1 x Accessories Set (M3*10mm Mounting Screw*2, Cover*1, M3*8mm Motor Mounting Screw*4)
Technical Specifications
| Brand | T -Motor |
|---|---|
| KV Rating | 320KV |
| SKU | AI5576 |
| Weight | 0.53 kg |
| Availability | In Stock |
Applications & Use Cases
The T Motor Navigator Waterproof Mn505-S 320 KV is a versatile drone motor used across a wide range of applications including FPV racing drones, agricultural spray drones, aerial photography platforms, and custom multirotor builds.
Common use cases:
- Replacement motor for crashed or worn-out drone
- Building a custom quadcopter or hexacopter from scratch
- Upgrading to a more efficient motor for longer flight times
This product is ideal for drone builders, FPV pilots, and agricultural drone operators.
Technical Tip: When selecting a drone motor, match the KV rating to your propeller size and battery voltage. Lower KV = larger props + more efficiency; higher KV = smaller props + more speed.
Shipping & Delivery
- Free shipping on orders above ₹999 across India
- Dispatched within 1-3 business days
- Expected delivery: 3-7 business days depending on location
- Secure packaging to ensure safe transit of electronic components
- Genuine T -Motor product sourced from authorized channels



Om Rawat –
Solid T Motor Navigator Waterproof Mn505-S 320. Not the absolute best but excellent value for the price point.
Nakul Kohli (verified owner) –
Pretty good T Motor Navigator Waterproof Mn505-S 320. Works as expected for my drone project. Would buy again.
Milan Mishra –
Excellent T Motor Navigator Waterproof Mn505-S 320! Perfect for my quadcopter build. Arrived well packed and works flawlessly.
Utkarsh Rao (verified owner) –
Using this T Motor Navigator Waterproof Mn505-S 320 in my hexacopter. Smooth operation and excellent thrust.
Ananya Nayak (verified owner) –
Using this T Motor Navigator Waterproof Mn505-S 320 in my FPV drone build. Quality is top notch. Very happy with the purchase.
Ajay Vohra (verified owner) –
Very impressed with this T Motor Navigator Waterproof Mn505-S 320. My drone’s performance improved noticeably.
Shivam Panchal (verified owner) –
This T Motor Navigator Waterproof Mn505-S 320 is value for money. Comparing with other brands, Zbotic offers the best deal.
Dhruv Mittal –
Superb T Motor Navigator Waterproof Mn505-S 320! Built my first drone with this and it performed beyond expectations.
Neeraj Rawat (verified owner) –
Amazing build quality! This T Motor Navigator Waterproof Mn505-S 320 is sturdy and lightweight at the same time.
Neeraj Bhandari –
Solid T Motor Navigator Waterproof Mn505-S 320. Not the absolute best but excellent value for the price point.
Aditi Deshpande –
Decent T Motor Navigator Waterproof Mn505-S 320 for the price. Using it in my quadcopter, performs well overall.
Akshat Bisht (verified owner) –
This T Motor Navigator Waterproof Mn505-S 320 is value for money. Comparing with other brands, Zbotic offers the best deal.
Kiara Sharma –
Very impressed with this T Motor Navigator Waterproof Mn505-S 320. My drone’s performance improved noticeably.
Meera Garg (verified owner) –
Superb T Motor Navigator Waterproof Mn505-S 320! Built my first drone with this and it performed beyond expectations.
Vijay Parekh (verified owner) –
My 5th order from Zbotic. This T Motor Navigator Waterproof Mn505-S 320 is excellent as always. Totally reliable store.
Manoj Shetty (verified owner) –
My 5th order from Zbotic. This T Motor Navigator Waterproof Mn505-S 320 is excellent as always. Totally reliable store.
Akshat Rathore (verified owner) –
Decent T Motor Navigator Waterproof Mn505-S 320. Took some effort to set up but working now.
Uday Nair (verified owner) –
Bought this for my college drone project. Works great, professor was impressed!
Deepika Choudhury (verified owner) –
Amazing build quality! This T Motor Navigator Waterproof Mn505-S 320 is sturdy and lightweight at the same time.
Kiara Chatterjee (verified owner) –
Using this T Motor Navigator Waterproof Mn505-S 320 in my hexacopter. Smooth operation and excellent thrust.
Harshit Hegde (verified owner) –
Using this T Motor Navigator Waterproof Mn505-S 320 in my hexacopter. Smooth operation and excellent thrust.
Rishabh Batra (verified owner) –
Good T Motor Navigator Waterproof Mn505-S 320. Works well for my drone build. Packaging could be slightly better.
Tarun Kumar (verified owner) –
Nice T Motor Navigator Waterproof Mn505-S 320, does the job. Delivery took a couple of extra days but product is solid.
Darshan Gupta (verified owner) –
Average T Motor Navigator Waterproof Mn505-S 320. Works fine but expected slightly better quality at this price.
Jai Srivastava (verified owner) –
Average T Motor Navigator Waterproof Mn505-S 320. Works fine but expected slightly better quality at this price.
Tanmay Negi (verified owner) –
My 5th order from Zbotic. This T Motor Navigator Waterproof Mn505-S 320 is excellent as always. Totally reliable store.
Akshat Kulkarni –
Good T Motor Navigator Waterproof Mn505-S 320. Works well for my drone build. Packaging could be slightly better.