Alltrax SR series motor controller family reference image; voltage, amperage and mounting configuration vary by model

Alltrax SR48400 400A Series DC Motor Controller

SKU: SR48400

Regular price
$615.20
Sale price
$615.20
Unit price
per 
Free shipping at $329+ (Lower 48) Lower 48: $12 shipping below $329; free shipping at $329+. Allow 1–5 business days for processing.
Shipping rates and delivery details

Lower 48: $12 shipping under $329 • Free shipping at $329+. Hawaii and Alaska shipping charges will be added manually.

Lower 48: allow 1–5 business days for processing, then an estimated 2–7 business days in transit. Estimates are not guaranteed.

Allow 1–5 business days for processing. Delivery timing varies. Shipping details

Returns and warranty before you buy

Request an eligible return within 7 days of delivery. Approved non-defective returns have a 25% restocking fee; return shipping is your responsibility. Items must be unused, uninstalled and in original packaging. Exclusions apply.

Read the full return policy

Manufacturer warranty terms and exclusions apply. Contact us if you need the warranty for this exact item confirmed before ordering.

Need help choosing the right part? Contact us with your cart year, make and model.

Alltrax SR48400 — 400A Series DC Controller

Programmable 12–48V series DC motor controller for compatible series-motor applications.

Select your cart and throttle before adding to cart

The cart/throttle configuration selected above is recorded on your order. Match the throttle signal on your existing controller; cart brand alone is not enough. Do not choose another configuration just because it is available.

  • Club Car series — 5K–0 ohm: for a verified 5K–0 throttle.
  • Club Car series — 0–5K ohm: for a verified 0–5K throttle.
  • E-Z-GO series — ITS: for an inductive ITS throttle.
  • E-Z-GO series — 0–5K ohm: for a verified resistive 0–5K throttle.
  • Yamaha series — 0–1K ohm: for a verified 0–1K throttle.

Not sure which configuration you have? Contact Winnie's through our contact page before purchasing. Send the cart make, model, year, battery-pack voltage and clear photos of the original controller label and connections. Older carts, modified wiring and replacement throttles may differ. The unconfigured option is not available for purchase.

Controller and installation details

USB programming with Alltrax Toolkit, configurable throttle input, sealed electronics and an integrated heat sink. Cooling fan optional on the 400A model. This is not an XCT/separately excited regen or AC controller.

Verify throttle wiring, original controller footprint, motor type, battery voltage and fully charged pack voltage. Match battery current capability, cable size and contactor ratings to the installation. The 400A designation is a peak/current class, not an unlimited continuous rating. Final programming must match the installed system.

Mounting adapters may be required and are not assumed included. Motor, cable kit and solenoid are not included. Representative SR family photo.

Manufacturer model: SR48400
Condition: New
Configuration suffixes on our SKUs identify your selected cart/throttle; the controller model remains SR48400.

✓ Fitment verified

Match your cart to the listed application and installation requirements.

View fitment and installation requirements
✓ Fitment verified

Verified for the application listed below. Your cart must match its configuration and installation requirements.

Brand and model narrow the collection. Check the listing for year, voltage, drivetrain and installation requirements.

Brand
Club Car, EZGO, Yamaha
Model
Series DC applications - configuration required
Year
No specific year range is listed. Match your model and configuration before ordering.

12V / 24V / 36V / 48V

Electric

SR48400 series DC controller, 12–48V. Conditional application, not universal plug-and-play. Verify series motor, throttle type/settings, wiring and mounting adapter. Not sepex/regen XCT or AC. Confirm maximum charged battery voltage and current/cable/contactor ratings. Fan optional; adapter not assumed included.

Fitment and installation requirements

Get help choosing the right part

Your selected product and cart details are included below. Tell us what you are replacing or trying to improve.

To send photos, open an email and attach them before sending. This website form sends text and image links, not uploaded attachments.

Helpful photos: the whole cart, its identification label, the old part number, and visible connectors. Do not disconnect wiring just to take a photo.

Edit cart details

Cart details are saved on this device only. Do not enter personal information here. Changing carts clears the previous configuration.

Unknown details will not be treated as confirmed.

Not sure which cart you have?

Use the vehicle label and manufacturer guidance to identify your cart. Body panels, batteries and drivetrains can be changed; a model name alone does not prove part compatibility.

Club Car

Club Car: check the barcode label below the passenger-side cup holder or above the pedals. The model letters are followed by the model-year and production-week digits. Use the manufacturer directory to confirm the prefix.

Open manufacturer identification guide

E-Z-GO

E-Z-GO: for models purchased before 2023, the manufacturer points to the steering column or below the driver-side seat. Location varies by model. Photograph the complete label, including the manufacturer code.

Open manufacturer identification guide

Yamaha

Yamaha: check under the seat at the floorboard/motor compartment, on the frame under the rear bumper, or beneath the driver-side glove box. Use the full identification label, not just the body appearance.

Open manufacturer identification guide

Park securely, set the parking brake and remove the key before looking for labels. Do not touch electrical terminals or work underneath an unsupported vehicle.

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