yes, they can. Lippert did not make the pump assemble.
If you are handy, remove the solenoid and take it to a hydraulic SHOP.
Mark hoses and wires. The fluid will remove just about everything.
Dale&Susan, 08 Alfa Gold, DaGirlsRv Blog
2015 F-150XLT_2000W Solar_600 AmpHr Lithium
Magnum_MSH 3012 & PT100