Earn $5 in Winnie’s Rewards for every $150 spent • Free shipping $329+ (Lower 48)

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

Alltrax SR48400 400A Series DC Motor Controller | 12–48V

SKU: SR48400

Regular price
$614.99
Sale price
$614.99
Unit price
per 
Shipping calculated at checkout.
Lower 48: $15 shipping under $329 • Free shipping at $329+. Hawaii and Alaska shipping charges will be added manually.
Allow 1–5 business days for processing. Delivery timing varies. Shipping details

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 golf-cart and other approved series-motor applications.

Alltrax SR features include USB programming with Alltrax Toolkit, configurable throttle input, sealed electronics and an integrated heat sink. A cooling fan is optional on the 400A model.

Configuration is required

Compatible Club Car, E-Z-GO and Yamaha series carts can require different throttle settings, wiring and mounting adapters. Confirm the original controller, motor type, throttle signal and mounting footprint before ordering. This is not an XCT/separately excited regen or AC controller.

Match battery voltage, fully charged pack voltage, current capability, cable size and contactor ratings to the installation. The 400A designation is a peak/current class, not an unlimited continuous rating. Mounting adapters may be required and are not assumed included. Motor, cable kit and solenoid are not included.

Representative SR family photo; amperage, cooling and mounting configuration vary by model.

SKU: SR48400
Condition: New

✓ 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

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.

Compare selected products