Reliance EZGO 36/48V High Speed Series Motor 19 Spline | Marathon 1989-1994 Electric Golf Cart Upgrade

Reliance EZGO 36/48V High Speed Series Motor – 19 Spline Golf Cart Upgrade

Upgrade your cart with the Reliance EZGO 36/48V high speed series motor, designed to deliver improved speed, torque, and overall performance. Built specifically for EZGO Series golf carts, including EZGO Marathon electric models (1989-1994), this 19 spline golf cart motor is a direct factory replacement for reliable and efficient operation.

This EZGO high speed motor is ideal for users looking to increase top speed and acceleration. When paired with a high-performance controller such as a Navitas 440 amp or 600 amp controller, the motor can achieve speeds up to 20 mph at 48 volts and deliver up to a 25% increase in torque with 8 HP peak output.

Key Features

• Reliance EZGO 36/48V high speed series motor
• Fits EZGO Series and Marathon electric carts (1989-1994)
• 19 spline coupler for secure installation
• High speed performance upgrade
• Direct replacement for OEM motors
• Compatible with Navitas controllers
• 1-year warranty

Performance Benefits

• Up to 20 mph top speed at 48V
• Up to 25% torque increase
• 8 HP peak output
• Improved acceleration and hill climbing performance

OEM Replacement & Compatibility

This EZGO replacement motor replaces:

• D-31 motor
• HT-D297 motor
• ADC 6-244C motor

Works with:

• Navitas 440 Amp Controller (25-047)
• Navitas 600 Amp Controller (25-025)

Important Notes

• For Series motors only (not compatible with DCS, PDS, or Sepex/Shunt systems)
• Performance gains require upgraded controller
• Results depend on mechanical condition of the cart

Motor Break-In Instructions

To ensure long-term durability and optimal efficiency of your Reliance EZGO 36/48V high speed series motor, follow proper break-in procedures:

• Drive 8–10 miles at varying speeds with gentle acceleration
• Monitor motor temperature every 10 minutes during initial use
• Allow cooling if the motor becomes too hot to touch
• Repeat until break-in cycle is completed

This process ensures proper brush seating, improved efficiency, and maximum lifespan for your golf cart motor upgrade.

Specifications

• Brand: Reliance
• Motor Type: Series
• Voltage: 36V / 48V
• Spline: 19 spline
• Application: EZGO Marathon Electric (1989–1994)

Click Here For Reliance DC Motor Instructions (PDF)

Click Here For Reliance DC Motors QR Code

Make Model Year Power: EZGO MARATHON ELECTRIC 1989 1994

OEM Manufacturer & Part Number: MOT-B1 RH

Cross-reference part/SKU numbers: 25-514