The Spray Arm and Supply Tube Kit is an OEM replacement part for Whirlpool and KitchenAid dishwashers. This kit restores two key cleaning mechanisms by replacing lower spray arms as well as its feed tubes.   This kit includes: An 18-inch upper spray arm A holder or hanger A single-piece water supply tube A split-ring seal A screw Causes of failure can include mineral deposits clogging small jet openings plus years of constant high-pressure water exposure creating small fractures in rigid plastic arms. Symptoms of a failed spray system include: Greasy or soiled dishes despite washing   Diminished water pressure observed inside the dishwasher Visible cracks or missing spray jets on arm vanes Leaks from worn tube connections to spray arms This OEM replacement part is compatible with Maytag, Jenn-Air and Amana models as well.Part Number 675808 (AP3115182) replaces 3378147, 3379644, 67580-8, 675808VP, 679719, 9742989, 9742992, 9742995, 9743210, AH382824, EA382824, PS382824.