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

Alltrax SR72500 500A Series DC Motor Controller

SKU: SR72500-CC-5K0

Regular price
$815.20
Sale price
$815.20
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 SR72500 — 500A High-Voltage Series DC Controller

Programmable 12–72V series DC controller with included cooling fan for compatible, properly engineered series-motor systems.

Select your cart and throttle before adding to cart

Your selected cart/throttle configuration is recorded on the order. Match the existing throttle signal. Available configurations are Club Car series with 5K–0 or 0–5K ohm throttle, E-Z-GO series with ITS or 0–5K ohm throttle, and Yamaha series with 0–1K ohm throttle. These choices identify the throttle/application; they do not certify a stock cart for 72V.

Not sure? 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 or modified systems may differ. Do not select another configuration just because it is available. The unconfigured option cannot be purchased.

Verify the complete electrical system

A controller swap alone does not make a stock 36V/48V cart suitable for 72V. Match motor voltage/speed limits, fully charged battery voltage, battery capability, throttle signal, cables, contactor, charger and auxiliary circuits. Final programming must match the actual system.

Included cooling fan, integrated heat sink, sealed electronics, configurable throttle input and USB programming with Alltrax Toolkit. Not for separately excited/regen XCT or AC systems. Mounting and throttle wiring must match the application. Adapters may be required and are not assumed included. The 500A designation is a peak/current class, not an unlimited continuous rating.

Motor, power cable kit and solenoid are not included. Representative SR family photo.

Manufacturer model: SR72500
Condition: New
Our SKU suffix identifies the selected cart/throttle; the manufacturer model remains SR72500.

✓ 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.

Model
Series DC applications - complete-system verification required
Year
No specific year range is listed. Match your model and configuration before ordering.

12V / 24V / 36V / 48V / 72V

Electric

SR72500 12–72V series DC, configuration-dependent. Not sepex/regen XCT or AC. Controller alone does not convert a stock cart to 72V. Verify motor voltage/speed limits, maximum charged pack voltage, battery current, throttle, cables, contactor, charger and auxiliaries. Fan included; mounting 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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