Premium Washer Drain Pump Assembly
The W11399437 is a genuine OEM drain pump assembly for Whirlpool and compatible washers. This assembly pumps wastewater from the washer tub to the household drain during spin and rinse cycles. It features a high-torque electric motor, corrosion-resistant impeller, and sealed housing for durability in wet environments. Typical lifespan is 6–12 years; failures are most often due to impeller jamming, motor burnout, or electrical faults. Symptoms: washer not draining, water left in tub, error codes (e.g., F9E1, LD), or loud grinding noises. IMPORTANT: Only use OEM pumps for correct flow rate and fit. CRITICAL: Always disconnect power and water before servicing.