Part # 5112-031
Manufacturer Code SPX4000SA2
Alternate Part #'s SPX4000SA2
Two-part shaft seal assembly used on Hayward Northstar pumps from 2003 - 2007.
This seal is included in the Northstar Tune Up Kit.
THIS SEAL HAS BEEN DISCONTINUED AND HAS BEEN REPLACED BY HAYSPX3200SA.
Which way does the spring part of the seal assembly go on the shaft? Does the rubber surface go against the ceramic on the other part or does it make a difference?
The spring portion of the seal slides over the hub of the impeller and the white ceramic portion slides into the seal plate which is the side which is closer to the motor.