This Seal Maintenance Kit is for Rod Connectors Secured with a Roll Pin or Set Screw. It has items to address either of the previous model pump systems.
All Model 1900 pumps of this style have a built-in Drain Back Feature. Therefore, this maintenance kit includes the items necessary to maintain that system. It does not include the Drain Pin Removal Tool used to reach the bottom of the inside of the pump body. A socket extension with a 1/2” socket may work. Note that the Drain Pin Removal Tool has a special rubber insert in the socket to prevent dropping the Drain Pin during removal. This tool is available for purchase separately.
With this kit you will be able to replace all wear items and some hardware to keep your Bison Pump running strong!