View 2 Photos View 0 Videos 1990 Western Star 5900 Door Window Regulator Newly Listed $125 USD RH DOOR WINDOW REGULATOR. PN#565211 ConditionUsedFits To Make(s)Western StarFits To Model(s)5900Will Fit Year(s)1990Part Number565211Stock Number121124-15 MLS Number14650830CategoryDoor Window Regulators Last Updated10/8/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info