This is an Aftermarket 25556 12V "Old Style" Slotted Clockwise Single Terminal Motor.
This motor is used on Western and Fisher old cable pumps.
Note: This was also used on the conventional plows, however, there were two options depending which internal pump was used. The 25556 is used with the 25557 internal pump. If this is not your internal pump you are using see the 56133 motor.