Washing Machine Drain Pump 66513543N412 – What Part Fixes Drain Problems?
Need the replacement part? Search your model number at for guaranteed fit and fast free shipping.
Understanding the Problem
Part overview: The 66513543N412 refers to a washing-machine drain pump assembly used to move water from the tub to the household drain. When it fails you usually get no drainage, slow drainage, loud noises during drain, or leaks. Below are practical diagnostic steps and a step-by-step repair procedure. 1) Confirm the symptom and basic checks - Symptom check: Run a drain/spin cycle and observe. Is the washer not draining at all, draining slowly, making grinding/humming noises, or leaking from the pump area? - Quick checks: Make sure the drain hose is not kinked and the standpipe or sink the washer drains into isn't clogged. Inspect visible hoses and clamps for leaks. 2) Access and visual inspection - Unplug the washer and turn off the water supply. Safety first. - Move the washer away from the wall to access the back or front service panel (model-dependent). Remove the access panel(s) to reach the drain pump and hoses. - Inspect the pump, inlet/outlet hoses, and hose traps for clogs (coins, lint, small clothing items) and for visible leaks or cracks in the pump housing. 3) Manual drain and clog removal - If there is standing water, drain it into a shallow pan by loosening the lower drain hose or using the service drain port. Remove any visible debris from the pump inlet or hoses. 4) Electrical diagnosis - With the washer unplugged, disconnect the pump electrical connector. Inspect connector for corrosion or melted pins. - Use a multimeter set to ohms to check pump motor windings. Typical drain pump motors often read tens to a few hundred ohms; an open circuit (infinite resistance) indicates a failed motor. (Refer to your model's service data for exact resistance range.) - Reconnect power briefly (with wires safely insulated and pump supported) to see if the pump motor runs in a drain cycle only after confirming there is no water leakage risk. If the pump hums but does not spin, the motor or impeller is likely jammed or failing. 5) Remove the pump - Unplug the washer and shut off water again. Place towels and a shallow tray beneath the pump area to catch residual water. - Loosen hose clamps and detach inlet/outlet hoses from the pump. Remove mounting screws/clips holding the pump in place and slide the pump out. Note orientation and routing of hoses — take a photo for reassembly. 6) Inspect the pump and impeller - Look inside the pump housing for broken impeller blades, plastic pieces, or foreign objects. If the impeller spins freely by hand (with motor disconnected) and no damage is visible, the motor may still be electrical failure. 7) Replace the pump (how to fix) - Install the replacement 66513543N412 pump: position it, reattach mounting screws/clips, reconnect the inlet/outlet hoses and clamps, and reconnect the electrical connector. Ensure hose clamps are tight and sealing surfaces are clean. - Reinstall access panel, restore water, plug the washer back in, and run a short drain/spin cycle to confirm proper operation and check for leaks. 8) Final checks - Confirm the washer drains fully and no abnormal noises occur. Re-check hose connections for leaks after a couple of cycles. Safety note: Always disconnect power before working on any appliance. Water and electricity together are hazardous. If you are not comfortable with electrical testing or lifting/replacing parts, hire an appliance technician.
Common Symptoms
Washer won't drain or drains slowly; loud grinding or humming during drain; water left in tub after cycle; visible leak from pump area.
Common Causes
- Blocked inlet or drain hoses or foreign object stuck in the pump impeller
- Pump motor electrical failure (open winding or burnt motor)
- Cracked pump housing or failed seal causing leaks
Popular Parts That Fix This Problem
These are the most common replacement parts that fix this problem. When you're ready to order, click below to find the right part at ProsourceParts.com — just search by your appliance model number for a guaranteed fit.
Helpful Repair Tip
To confirm the pump is faulty before buying a new one: empty visible debris, test the pump for continuity with a multimeter (open = bad), and observe behavior during a drain cycle—if the motor hums but the impeller doesn't turn, the pump is failing or jammed.
Frequently Asked Questions
Can I run the washer without the drain pump?
No. The drain pump is required to remove water from the tub. Running the washer without a functioning pump will leave water in the machine and can flood your home if the machine tries to drain into a blocked path. For testing only, you can manually drain water before using the washer but you should replace a failed pump promptly.
How long does it take to replace the drain pump and how much does it cost?
Typical DIY replacement takes 30–90 minutes depending on access and your experience. Part cost varies by brand but a drain pump assembly usually costs between $40 and $150. If you hire a technician, add labor (often $80–$150+) depending on region.
Related How-To Videos
Real DIY Repair Stories
Be the first to share your repair story!
Share Your Repair Story
Your experience helps other homeowners fix their appliances. Tell us how it went!
Can't Fix It Yourself? Find a Local Technician
It's perfectly okay to call a professional. Some repairs require specialized tools, deep teardowns, or dealing with complex systems that are better left to the pros.
Find the Right Part for Your Appliance
Don't guess — search your exact appliance model number at ProsourceParts.com to find the correct OEM compatible replacement part. They offer fast free shipping, guaranteed fit, and thousands of parts in stock.
Your Free Parts Videos
Whether your dishwasher won't drain, your dryer stopped heating, or your fridge isn't cold, we've created simple repair guides for the most common appliance problems homeowners face. Each guide explains what's going wrong, the most likely causes, and which replacement parts fix the issue. When you're ready to order, we link directly to ProsourceParts.com where you can search by model number and get the right part shipped fast.