Whirlpool Washer Drain Pump Assembly W11790873, Replaces W11741147

The Whirlpool W11790873 Drain Pump Assembly is designed to remove water from the washer tub during drain and spin portions of the cycle. It replaces discontinued Whirlpool part number W11741147 when fitment is confirmed by the complete washer model number.

Is This the Right Part?

Confirm the complete washer model number before ordering. Current verified fitment evidence identifies this pump on select newer Whirlpool-built top-load washer models. Fits select Whirlpool-built top-load washers — confirm the complete model before ordering.

Common Symptoms

• Water remaining in the tub after the cycle ends
• F9E1 long-drain error code on the control panel
• Washer stopping before or during spin
• Slow draining
• Pump humming or grinding during drain phase
• Water leaking from the pump housing

Check Before Replacing

• Inspect and clean the drain-pump filter
• Check the internal and external drain hoses for kinks or blockage
• Inspect the pump impeller for debris or damage
• Check the lower wiring harness and pump connector
• Verify household standpipe height and restriction
• Inspect the pressure hose and water-level sensing
• Check the main electronic control for fault codes

Part Details

Installation Notes

1. Disconnect electrical power and shut off the water supply before servicing.
2. Drain remaining water before removing any hose or pump connection.
3. Photograph wiring, hose clamps, and mounting positions before removal.
4. Compare the new pump with the original before installation.
5. Inspect nearby wires, hoses, seals, and connectors for damage.
6. Test the washer and check for leaks, unusual sounds, or error codes after installation.

Use a qualified technician when diagnosis or installation is outside your experience.

Verified Compatible Models

MTW4200SW0, WTW4307SW0

Fitment reminder: Match the complete model number, including suffixes and revision digits, before ordering. Current evidence ties W11790873 primarily to newer Whirlpool-built top-load washer platforms.