Whirlpool & Maytag Dishwasher Upper Rack Track Stop Parts — Models & Compatibility

Your dishwasher's upper rack keeps sliding too far back or won't stay on the track properly. That's almost always this little plastic stop—part number W10508950. It clips into the front of the upper rack track on both sides and prevents the rack from derailing when you pull it out to load dishes. This hub covers compatible Whirlpool, Maytag, KitchenAid, and Kenmore dishwasher models that use this exact stop.

Is This the Right Part for Your Model?

Check your dishwasher's model number—it's typically on a sticker inside the door frame or along the side of the tub. Match it against our compatibility list below. This stop fits Whirlpool WDT and WDTA series, Maytag MDB series, and several KitchenAid models. The part replaces older numbers like WPW10508950, 8562015, and W10199682, so if you see those referenced in your manual, this is the updated version.

About This Replacement Part

The W10508950 rack track stop is a small but critical component. It's made from durable plastic designed to withstand the heat and moisture inside your dishwasher. The most common failure happens when the original stops crack or break off completely—often from years of pulling the rack in and out, or from overloading the upper rack with heavy items. When that happens, you'll notice the upper rack slides too far back, comes off the track entirely, or doesn't sit level. Some users report noisy operation when the rack isn't seated properly. Installation takes under 15 minutes and requires no tools—you simply clip the new stops into the track channel on each side of the upper rack. One customer noted: "Clipped part into track on each side of top rack" and confirmed it works great immediately after install.

Compatible Dishwasher Models

This upper rack track stop fits the following Whirlpool, Maytag, KitchenAid, and Kenmore dishwasher models. If your model isn't listed but you have a similar series number, contact us to verify compatibility:

• Whirlpool WDTA50SAHB0, WDTA50SAHZ0
• Whirlpool WDT970SAHZ0, WDT975SAHZ0
• Whirlpool WDT750SAHZ0, WDT730PAHZ0
• Whirlpool WDT780SAEM1
• Whirlpool 7WDT950SAYM1, 7WDT950SAYM2
• Whirlpool 7GU3600XTSY0, 7GU3600XTSY1
• Maytag MDB7749AWB1
• Maytag MDB7609AWW0, MDB7609AWW1

This part is sold individually, but most repairs require replacing both the left and right stops. Check both sides of your upper rack—if one has failed, the other typically isn't far behind.

Installation Overview

This is one of the simplest dishwasher repairs you can do. Pull the upper rack completely out of the dishwasher. Locate the track channel at the front of the rack on each side. Remove any broken pieces of the old stop if they're still attached. Align the new W10508950 stop with the track opening and press firmly until you hear it click into place. Repeat on the other side. Slide the rack back into the dishwasher and test the motion—it should stop smoothly at the front position without coming off the rails. No screws, no tools, no disassembly required.

Why This Part Fails

The rack track stop may break or wear out over time, causing the upper dish rack to not stay in place or to come off the track. Heavy dish loads, thermal expansion from heat cycles, and repeated stress from pulling the rack out hundreds of times all contribute to wear. Some dishwashers see this part fail within 3-5 years of regular use. If you're experiencing door latch issues, difficulty closing the door, or the dishwasher isn't cleaning dishes properly because the spray arm can't reach the upper rack correctly, check these stops first—they're often the culprit and much cheaper than replacing the entire rack assembly.