Spektrum RC 4685 4-Pole Brushless Marine Motor (740kV)

Motor Overview:

The Spektrum™ 4685 4-Pole Brushless Marine Motor is purpose-built for performance enthusiasts running high-power RC boats using a 12S LiPo battery setup. With a robust 740kV rating and an extended 85-millimeter length, this motor is designed to deliver increased torque and superior thrust for large hulls and demanding water conditions. Its water-cooled design helps maintain optimal operating temperatures, ensuring consistent power and efficiency during extended runs.

About the 4685 Brushless Motor

Optimized Marine Power & Performance

This motor features a 4-pole internal design that boosts torque and efficiency. The durable five-millimeter steel output shaft offers reliability under stress, while the integrated eight-millimeter bullet connectors allow for quick and hassle-free installation. Combined, these features make the 4685 a powerhouse built specifically for the rigors of high-speed marine action.

Features:

• 740kV rating for strong torque and efficient power delivery
• Water-cooled housing for better thermal performance
• 4-pole design enhances torque and throttle response
• 85-millimeter motor length increases torque output
• Built for 12S LiPo setups in high-power boats
• Five-millimeter steel output shaft for added durability
• Eight-millimeter bullet connectors for quick installation

Includes:

• (1) 4685 4-Pole Brushless Marine Motor (740kV) w/Water Cooling Jacket

Specifications:

Manuals:

User Manual

WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov Details…

This product was added to our catalog on May 14, 2025