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DD4125 11.1-25.2V 300kv Waterproof Brushless Motor for Underwater Robot ROV
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DD4125 11.1-25.2V 300kv Waterproof Brushless Motor for Underwater Robot ROV

$55.00 USD
Customization Service

We are the OEM ODM manufacturer. For bulk orders and custom solutions, please contact us at official@hobbywater.com

When will I get my order?

We prioritize fast order processing. For in-stock items, orders placed before 4:00 PM (Beijing Time) will be shipped the same day. Standard orders typically ship within one week, while customized orders require approximately 15-30 business days for production and delivery. Delivery times may vary under special circumstances.

Shipping Methods

We ship to most countries worldwide. However, please ensure compliance with your local import regulations.

  • For the USA: We offer tax-inclusive shipping options. Expedited orders are shipped via DHL, UPS, or FedEx. Note: DHL does not allow undervaluation.
  • For other countries: Tax-inclusive shipping is available upon request. Otherwise, orders will be shipped via 4PX by default.

For specific shipping requirements, please contact us in advance.

DD 4125 Underwater waterproof brushless motor 300KV 11.1-25.2V depth 100m for underwater robot ROV Thruster

Waterproof Motor Features:

1. Proprietary unique, fully waterproof process: the motor is fully encapsulated and corrosion and oxidation resistant. 

2. High-quality bearings: the motor is equipped with precision, significantly improving the motor's life.

3. Super endurance and stable working: 100m underwater.

Brushless Motor Parameters

Motor KV: 300 KV
Power: 178W
Load current: 12A-18.5A
Working voltage: 11.1-25.2V
Speed range: 4350rpm
Waterproof depth: 100m
High strength corrosion resistant bearing

With cable version available,please contact


Simple ESC Matching Guide

Voltage (V):

ESC voltage = Battery voltage (e.g., 3S LiPo = 12V, 6S LiPo = 24V).

Current (A):

ESC current ≥ Motor max current + 20-30% safety margin.

Quick Examples:12V, 20A motor → 30A ESC (or higher).

Rule: ESC can handle higher amps than needed, but never lower. Always check motor specs!