Traxxas TRX-4M Waterproof Brushless FOC Power System Combo (3350Kv)

Brushless Combo Overview:

The Traxxas TRX-4M Brushless FOC Power System Combo is the ultimate upgrade for any TRX-4M model, providing superior low-speed torque and incredible precision. Designed to work seamlessly with the Traxxas TQ and TQi transmitters, this powerful brushless system includes a 3350kV Outrunner motor and is compatible with 2S TRX-4M iD® LiPo batteries. Whether you’re navigating tight crawling sections or launching over obstacles, this brushless power system delivers up to fifty percent more speed and performance than standard brushed systems.

This system is easy to install, utilizing the same mounting points as the original ECM. It also retains all the standard ECM features, including Pro Scale® lighting controls and three customizable drive modes: Sport, Trail, and Crawl. Experience the thrill of enhanced performance with Traxxas’ new brushless technology.

Features:

• Field-Oriented Control (FOC) for superior low-speed torque
• High-power 3350kV brushless Outrunner motor
• Brushless ECM compatible with 2S TRX-4M iD LiPo batteries
• Retains standard ECM features, including Pro Scale® lighting controls
• Integrated 3-channel receiver works with Traxxas TQ and TQi transmitters
• Includes 11-tooth brass pinion gear
• Easy plug-and-play installation with no modifications required

Specifications:

• Receiver Applications:1/18 Micro Rock Crawlers
• Type:Brushless – Sensorless
• Motor Kv:3350kv
• Input Voltage:2S LiPo with TRX-4M iD
• Channels:3
• Drive Modes:Sport, Trail, Crawl
• Pinion Size:11-tooth brass

Includes:

• (1) Traxxas TRX-4M Brushless FOC Power System Combo

This product was added to our catalog on October 3, 2024

• Traxxas TRX-4M
• Traxxas TRX-4M
• Traxxas TRX-4MT

Richard Shoop Verified Owner Wednesday, Aug 13 2025 (7 weeks ago) Traxxas TRX-4M Waterproof Brushless FOC Power System Combo (3350Kv) The motor works great and has a lot of power. Unfortunately, the pinion gear does not work with steel gears (they will grind it down) and Traxxas does not offer any replacement pinions for it, or any steel pinions for it. Joshua Grubaugh Verified Owner Tuesday, Jul 15 2025 (2 months ago) Traxxas TRX-4M Waterproof Brushless FOC Power System Combo (3350Kv) Traxxas put out good stuff but this is no good get way way to hot Josh Shank Verified Owner Sunday, Jul 13 2025 (3 months ago) Traxxas TRX-4M Waterproof Brushless FOC Power System Combo (3350Kv) I wish I had just left it brushed it actually crawls much better this setup has horrible cogging when crawling slow I really wish I hadn’t wasted the money on the “upgrade” . Matt H Verified Owner Tuesday, May 20 2025 (4 months ago) Traxxas TRX-4M Waterproof Brushless FOC Power System Combo (3350Kv) I was surpised at how much power it added.. install was easy added the 2 speed transmisson at the same time. View all reviews