GE Dishwasher Rack Slide End Cap Parts — Models & Compatibility

Your GE dishwasher's lower rack keeps falling off the rails or won't slide smoothly? That's usually the rack slide end cap — a small plastic piece that does a huge job. The WD12X10304 fits over 100 GE, Hotpoint, and Kenmore dishwasher models, from the GLD series to PDW models. This hub covers everything you need to verify compatibility and get your rack gliding again.

Is This the Right Part for Your Model?

Check your dishwasher's model number — it's on a sticker inside the door frame, usually along the top or side edge. The WD12X10304 replaces AP4484666, WD12X0344, WD12X344, and PS2370502. If your model starts with GSD, GLD, PDW, GHD, CRD, or ADW, there's a strong chance this cap fits. Cross-reference your full model number against the compatibility list below before ordering.

About This Replacement Part

The rack slide end cap sits at the end of the lower rack rail assembly and keeps the rack aligned while it slides in and out. These caps crack or break off from years of loading heavy pots and pans, causing the rack to wobble, jump the track, or tilt at weird angles. You'll find these caps sold individually, but many techs replace both sides at once since they wear at similar rates. The WD12X10304 is molded plastic — no metal components — and snaps directly onto the existing rail without tools. It's one of those ten-dollar parts that prevents a two-hundred-dollar service call.

Compatible GE Dishwasher Models

This rack slide end cap works across GE's dishwasher lineup from the early 2000s through mid-2010s models. The part number stayed consistent across multiple series, which makes replacement straightforward. Verify your exact model below:

Why This Part Fails

Plastic fatigue is the main culprit. Every time you pull the rack out, that end cap absorbs stress. Load a cast iron skillet on one side, and you're putting even more pressure on the rail system. Over time, the plastic develops hairline cracks around the mounting points. Temperature swings during the dry cycle don't help either — the cap heats up and cools down hundreds of times a year. Eventually, a piece snaps off, the rack loses its guide, and you're left with a wobbly mess that makes loading dishes feel like a puzzle.

Installation Overview

Replacing the rack slide end cap takes about five minutes per side. Pull the lower rack completely out of the dishwasher. The broken cap usually pops off with your fingers or a flathead screwdriver. The new WD12X10304 cap snaps onto the rail end — you'll hear a click when it seats properly. Slide the rack back in and test the motion. If it glides smoothly without binding or tilting, you're done. No screws, no adhesive, no complicated disassembly.

What Comes in the Package

You get one WD12X10304 rack slide end cap. That's it — just the single cap, not a pair. If both sides are damaged or you want to replace them together for preventive maintenance, order two. The part is identical for left and right sides, so you don't need to specify which end. It's the same gray plastic used in the original factory installation.

Alternative Part Numbers

The WD12X10304 supersedes several older GE part numbers: WD12X0344, WD12X344, AP4484666, and PS2370502. If your repair manual lists any of those numbers, the WD12X10304 is the current replacement. Kenmore dishwashers built by GE use this same cap — the branding on the appliance doesn't change the part.