The Rack Assembly is an OEM component for Frigidaire dishwashers. As the foundation component, the rack assembly provides a sturdy platform to hold dishes in place throughout cleaning cycles. It works seamlessly with adjustable shelf configurations. Causes of a bad rack assembly can include years of repeated use, loads with broken or sharp dish pieces, or impacts from moving the racks. The reinforced wires may fatigue and distort out of shape. Symptoms of a bad rack assembly include: Dishes falling through or out of rack spaces Difficulty loading or removing racks Racks sitting unevenly skewing dishes Rust or deterioration of wire basket material This OEM part from Frigidaire is also compatible with some Electrolux, Gibson, and Kenmore models.Part Number 5304475618 (AP4508570) replaces 1565391, 5304484728, AH2379463, EA2379463, PS2379463.