Whirlpool Dishwasher Detergent & Rinse Aid Dispenser Parts — Models & Compatibility

Your Whirlpool dishwasher's detergent dispenser controls the precise timing of when soap enters the wash cycle. When it fails, you'll notice dishes coming out dirty, detergent pods not dissolving, or the dispenser door stuck shut after a cycle. This W11412300 dispenser assembly fits across Whirlpool's modern dishwasher lineup, including popular WDT and WDTA series models, plus select Maytag and KitchenAid units that share the same platform.

Is This the Right Part for Your Model?

Check your dishwasher's model number, which you'll find inside the door frame along the top edge or on the left side panel. This dispenser works with dozens of models from the WDT750, WDT970, WDTA50, WDTA80, and WDT740 series, plus Maytag MDB4949 models. Cross-reference your complete model number (including the suffix after the dash) against the compatibility list below — that last digit matters for getting the exact match.

About This Replacement Part

This assembly includes the complete detergent and rinse aid dispenser mechanism — the part that opens at the right moment during your wash cycle. It replaces older part numbers W11092649, AP6981330, and PS12745376, which means if you've been searching for any of those numbers, this is your updated replacement. The dispenser housing contains the electronic actuator that releases the door latch, the soap cup itself, and the rinse aid reservoir cap. When the actuator motor fails or the latch mechanism breaks, the entire assembly typically needs replacement rather than trying to repair individual components. At $62.99, you're getting the OEM-quality part that restores proper detergent dispensing without the dealership markup.

Compatible Model Series

This dispenser fits multiple appliance brands that share Whirlpool's dishwasher platform:

• Whirlpool WDT Series: High-efficiency models with sensor wash technology
• Whirlpool WDTA Series: Tall tub designs with extended capacity
• Maytag MDB Series: PowerBlast cycle models sharing the platform
• KitchenAid Models: Select premium dishwashers using the same dispenser design

When You Need This Part

The most obvious sign is detergent pods or powder remaining in the cup after the cycle finishes. You might also notice the dispenser door doesn't click open during operation, or it's stuck closed and won't release manually. Some units develop cracks in the rinse aid reservoir, causing leaks inside the door. If your dishwasher runs through a complete cycle but dishes still have food residue and there's no soap smell, check that dispenser door — it's probably not opening when it should.

Installation Overview

You'll need to remove the dishwasher's inner door panel to access the dispenser assembly. That means taking out the screws around the door's perimeter and carefully disconnecting the wire harness that powers the actuator. The dispenser itself typically mounts with 2-3 screws or clips. Most techs can swap this in 30-45 minutes once they've got the door panel off. Just make sure you route the new wiring the same way as the old unit — don't let wires interfere with the door latch mechanism.

Cross-Reference Numbers

If you're looking up parts by alternative numbers, this dispenser supersedes: W11092649, AP6981330, PS12745376. All those numbers lead back to this current W11412300 assembly.