Samsung Front-Load Washer Door Lock Switch Assembly Parts — Models & Compatibility

Your Samsung front-load washer won't start, and you notice the door isn't clicking shut like it used to. That's the door lock switch assembly failing — one of the most common issues across Samsung's WF series washers. This hub covers the DC64-00519B door lock replacement (replaces AP4205355, PS4210737) and which models it fits.

This assembly is the electronic locking mechanism that secures your washer door during cycles and signals the control board that it's safe to fill with water. When it fails, your washer simply won't run.

Is This the Right Part for Your Model?

Check your washer's model number before ordering. On Samsung front-loaders, you'll find the model tag inside the door opening on the front frame, or sometimes on the back panel near the power cord. Look for models starting with "WF" followed by numbers and letters — this lock assembly fits over 20 different WF-series Samsung washers from 2010-2017.

About This Replacement Part

The DC64-00519B door lock switch assembly is Samsung's electronic door latch system for front-load washers. It's a complete unit that includes the lock mechanism, switch contacts, and wiring harness. The most common symptom when this part fails is the lid or door won't close properly — you might hear a clicking sound but the door doesn't secure, or the washer displays a door error code and refuses to start. This happens because the door lock solenoid wears out over time from thousands of lock/unlock cycles, or the plastic locking tabs crack from force. The part installs at the front of the washer cabinet behind the door opening and connects directly to the main control board. You're looking at about $43.99 for OEM-quality replacement, which beats a $200+ service call for a repair that takes 20 minutes once you have the right part.

Compatible Samsung Washer Models

This door lock assembly works across Samsung's most popular front-load washer series. Here are the confirmed compatible models:

• WF419AAW/XAA — 4.3 cu ft capacity model
• WF42H5200AP/A2 — 4.2 cu ft VRT series
• WF42H5400AF/A2 — 4.2 cu ft with Steam Wash
• WF45H6100AP/A2 — 4.5 cu ft AddWash model
• WF45H6300AG/A2 — 4.5 cu ft Steam model
• WF457ARGSWR/AA — 4.5 cu ft large capacity
• WF457ARGSGR/AA — 4.5 cu ft graphite model
• WF339AAW/XAA — 3.9 cu ft compact series
• WF42H5000AW/A2 — 4.2 cu ft basic model
• WF409ANW/XAA — 4.0 cu ft mid-range
• WF431ABWXAA — 4.3 cu ft VRT Plus
• WF45K6200AW/A2 — 4.5 cu ft newer series
• WF330ANW/XAA — 3.7 cu ft entry model
• WF393BTPAWR/A1 — 3.9 cu ft steam washer
• WF42H5100AW/A2 — 4.2 cu ft standard
• WF45H6300AW/A2 — 4.5 cu ft premium
• WF42H5200AW/A2 — 4.2 cu ft white model
• WF56H9100AG/A2 — 5.6 cu ft mega capacity
• WF328AAW/XAA — 3.7 cu ft older series
• WF218ANW/XAA — 3.8 cu ft basic front-load

If your model isn't listed here but starts with "WF" and was made between 2009-2017, there's a good chance it's compatible. Cross-reference your full model number with the manufacturer's parts diagram to confirm.

Why This Part Fails

Samsung's door lock assemblies typically last 7-10 years, but heavy use accelerates wear. The internal solenoid coil can burn out, especially if you've had power surges or frequently interrupted cycles mid-wash. The plastic strike that catches the door hook cracks over time — you'll notice the door doesn't feel as solid when it closes. Sometimes it's not the lock itself but corrosion on the electrical contacts from moisture exposure, which prevents the switch from signaling the control board.

What You'll Need for Installation

Replacing this door lock assembly requires basic tools: a Phillips screwdriver to remove the front panel screws, and a small flat-head screwdriver to release wire harness clips. You'll need to unplug the washer and remove the front lower panel (usually 2-4 screws along the bottom). The lock assembly is held by two screws behind the door opening — remove those, disconnect the wire harness, and reverse the process with your new part. Total time is about 15-20 minutes if you've done it before, maybe 30-40 if it's your first time.

Order Your Replacement Part

The DC64-00519B door lock switch assembly is in stock at $43.99 with fast shipping. This is a direct OEM replacement that'll restore your washer's door locking function completely. It's backed by Samsung's quality standards and includes the complete assembly — lock mechanism, switch, and wiring harness — so you're not piecing together multiple parts.