OEM vs Aftermarket Samsung Door Lock Switch (DC64-00519B): Real Cost Breakdown

Your Samsung front-loader flashes the door lock error code, and you've traced it to the DC64-00519B door lock assembly. Now you're staring at two wildly different price tags: $140–$180 from Samsung parts distributors, or $43.99 for the aftermarket version. That's a 70% price difference for what looks like the same plastic assembly with a solenoid.

Let's cut through the noise.

Quick Answer

For the DC64-00519B door lock switch, the aftermarket version delivers identical performance at less than a third of the OEM cost. This isn't a complex mechanical part — it's a solenoid-actuated lock mechanism with simple electrical contacts. Unless you're repairing a washer still under Samsung's factory warranty (where using OEM parts matters for coverage), there's no functional reason to pay the premium.

Side-by-Side Comparison

When OEM Makes Sense

There are exactly three scenarios where paying Samsung's markup is justified:

Active warranty coverage. If your washer is less than a year old and still covered, Samsung may require OEM parts for warranty service. Check your paperwork before ordering — some extended warranties have similar requirements.

Commercial laundry operations. Multi-housing property managers sometimes maintain all-OEM parts inventories for liability reasons. If you're managing 50+ Samsung units and your insurance or franchise agreement specifies OEM replacement parts, you're stuck with the higher cost.

Resale value matters. Flipping a high-end washer and marketing it as "all original Samsung parts"? The OEM door lock might add perceived value to buyers who care about that stuff. For your own laundry room? Irrelevant.

When Aftermarket Wins

The DC64-00519B is a perfect aftermarket candidate. Here's why:

It's not a precision part. This assembly doesn't require tight tolerances or complex calibration. It's a spring-loaded latch with a simple solenoid that either locks or doesn't. The electrical contacts are basic on/off switches. Aftermarket manufacturers replicate this easily.

Failure modes are identical. Whether OEM or aftermarket, these door locks fail the same way: the solenoid coil burns out from repeated cycling, or the plastic latch mechanism wears down. The underlying materials are functionally equivalent — both last 5–7 years under normal use.

Installation is plug-and-play. You're removing three screws, disconnecting a wire harness, and reversing the process. There's no adjustment, no programming, no calibration. If it fits mechanically and the connector mates, it works.

The math is brutal. At $43.99 vs $160 average OEM cost, you could replace the aftermarket part three times and still spend less. These door locks don't fail frequently enough to make that scenario likely.

Our Verdict

Buy the aftermarket DC64-00519B unless you're literally required to use OEM parts by warranty or contract. You're saving $116 on a component where brand name provides zero functional advantage. That's money better spent on literally anything else — maybe a year's supply of HE detergent.

The solenoid door lock market is commoditized. Samsung doesn't manufacture these in-house; they contract them out just like the aftermarket suppliers do. You're paying for the logo, not superior engineering.

Frequently Asked Questions

Will the aftermarket door lock void my Samsung warranty?

Only if the washer is still under the original manufacturer's warranty. If you're past that coverage period — which most people are when this part fails — it's irrelevant. Using aftermarket parts on out-of-warranty appliances doesn't affect future service or create liability issues. The Magnuson-Moss Warranty Act actually protects your right to use third-party parts.

How do I know if DC64-00519B is the right part for my model?

Check your washer's model number against the compatibility list. The DC64-00519B fits most Samsung front-loaders from 2010–2018, including WF419AAW/XAA, WF42H5200AP/A2, WF45H6300AG/A2, and dozens more. If your washer displays a door lock error (usually dE, dE1, or dE2) and the door won't close or stay locked, this is almost certainly your part.

Can I install this myself or do I need a tech?

This is a DIY-friendly repair if you're remotely handy. You'll need a Phillips screwdriver and about 20 minutes. Unplug the washer, remove the top panel (usually two screws in back), disconnect the wire harness from the old lock, remove three mounting screws, and reverse with the new assembly. No special tools, no technical knowledge required. YouTube has a dozen walkthroughs if you want visual confirmation before starting.