Facebook-f Instagram Youtube X-twitter
Bafang M400 UART Mid Drive Motor Controller, 36V/43V/48V 250W E-Bike Central Controller Replacement Part
Bafang M400 UART Mid Drive Motor Controller, 36V/43V/48V 250W E-Bike Central Controller Replacement Part - Image 2
Bafang M400 UART Mid Drive Motor Controller, 36V/43V/48V 250W E-Bike Central Controller Replacement Part - Image 3
Bafang M400 UART Mid Drive Motor Controller, 36V/43V/48V 250W E-Bike Central Controller Replacement Part - Image 4
Bafang M400 UART Mid Drive Motor Controller, 36V/43V/48V 250W E-Bike Central Controller Replacement Part - Image 5

Bafang M400 UART Mid Drive Motor Controller, 36V/43V/48V 250W E-Bike Central Controller Replacement Part

UART protocol central controller specially designed for BAFANG M400 mid motor. Rated 36V/43V/48V 250W, complete multi-function wiring harness, net weight 289g, direct replacement for original controller, stable power for e-bike system.

Categorys : Tags : Brand:
Get a Inquiries
E-Bike Parts
E-Bike Conversion Kits
Contact Us

UART Central Controller for BAFANG M400 Mid Motor

This UART protocol central controller is custom-built exclusively for BAFANG M400 mid-drive motors. It enables seamless system integration and stable optimal performance for your electric bicycle. It serves as a perfect replacement unit for broken or aging original controllers.

Compatibility

✅ BAFANG M400 Mid Drive Motor
Note: This controller adopts UART communication protocol. Please confirm your original controller version and motor model before purchase to avoid mismatch.

Key Features

✅ Custom Made for BAFANG M400 Mid Motor
Built for BAFANG M400 mid motor system with UART protocol. Achieves reliable data communication between motor, sensors and display, delivers smooth and stable power output for daily cycling.
✅ Multi-Voltage & Stable 250W Power
Supports 36V, 43V and 48V battery systems with rated 250W power. Provides consistent power delivery and efficient motor operation, meets the power demand of city commuter e-bikes.
✅ Complete Multi-Function Wiring Harness
Comes with full pre-wired harness covering multiple ports:
Torque central axis ×2, EB BUS, Speed sensor, Shift power-off sensor, Battery communication, Motor, Power supply, Headlights, Taillight.
Supports all peripheral accessories of M400 mid motor, easy plug-and-play installation.
✅ Compact Lightweight Construction
Net Weight: 289g. Compact molded housing saves installation space, solid casing protects internal circuit board against vibration during riding.

Specifications

Product Name: Bafang M400 UART Central Controller
Protocol: UART
Fit Motor: BAFANG M400 Mid Drive Motor
Voltage: 36V / 43V / 48V
Rated Power: 250W
Net Weight: 289g
Ports: Torque central axis, EB BUS, speed sensor, shift power-off sensor, battery communication, motor, power supply, headlight, taillight

Package Includes

1 × Bafang M400 UART Controller with full wiring harness

Important Notes

Please double-check your motor model and communication protocol before ordering.
Minor color difference may exist due to lighting and screen display.
Allow slight manual measurement deviation.
Only the controller assembly is included; motor, display and other accessories shown in reference pictures are not contained in the package.
Related

Related Products

testimonials

What Our Riders Say

We specialize in mid-drive motors and e-bike parts. Strict testing, powerful R&D and flexible OEM service guarantee long-term cooperation.

contact us

It used to take me weeks to hunt down hard‑to‑find e‑bike spare parts. Their compatibility‑check technical support saved me countless repair headaches. Reliable supplier I can always count on.

Mark Wilson Repair Technician

Flexible mixed‑batch ordering is a game‑changer for my business. Low‑risk trial‑order options, fast delivery and solid OEM‑ODM service help me expand my product range with zero inventory pressure.

Jennifer Carter Wholesale

We have been sourcing e‑bike components from them for over one year. Product quality is consistent, and their responsive after‑sales support makes our daily shop‑running much easier. Highly recommended.

Ryan Thompson ebike shop owner

Got More question?

For more FAQs and further details, please get in touch with us

faqs

Frequently Asked Questions

We supply genuine OEM parts and premium compatible aftermarket replacement parts for e-bikes, including motor components, controllers, throttles, PAS sensors, wiring harnesses, connectors and Bosch form-factor batteries.

We serve mainstream drive system manufacturers: Ananda, Bafang, Aikema, Tongsheng, Shengyi, Bosch and more. We also provide repair components for complete e-bike brands including Sur‑Ron, Aventon, Trek and many others.

All items are brand-new and inspected before shipment. We do not supply second-hand or refurbished goods.

Our team verifies compatibility according to your bike model, motor info or original part photos. We confirm available OEM parts or recommend workable alternative solutions.

Yes. Flexible order sizes are supported, ranging from single spare parts to bulk purchases.

Sea freight, air freight and rail transport are optional.

Lead time varies by item and shipping mode. We confirm exact timelines before each order and share tracking updates.

We provide part identification, model matching and full order follow-up support.