Whirlpool Dishwasher Circulation Pump Parts — Models & Compatibility

The circulation pump is the heart of your Whirlpool dishwasher's cleaning system — it's what pushes water through the spray arms to blast away food residue. When it fails, you'll notice dishes coming out dirty, strange grinding noises during the wash cycle, or the dishwasher starting then immediately stopping. This hub covers the W11084656 circulation pump and motor assembly, which fits most modern Whirlpool, KitchenAid, Kenmore, and Amana dishwashers in the WDT and WDTA series.

Is This the Right Part for Your Model?

Check your dishwasher's model number first — you'll find it on a sticker inside the door frame, usually along the top or side edge. This W11084656 pump assembly replaces older part numbers W10854710, W10805387, and AP6050340, so if you're finding those numbers in your research, they're all the same updated part. It's specifically engineered for Whirlpool's built-in and portable dishwashers manufactured from 2016 onward.

About This Replacement Part

The W11084656 is a complete pump and motor assembly, meaning you're replacing the entire circulation system in one go rather than trying to rebuild individual components. The pump housing, impeller, motor, and mounting bracket all come pre-assembled. Whirlpool designed this as a single-unit replacement because the motor bearings and pump seals typically fail around the same time — usually after 5-7 years of regular use. The assembly includes a thermal overload protector that'll shut the motor down if it overheats, which often happens when the pump gets clogged with food debris or hard water deposits. At $283.99, it's a significant repair, but it's still considerably cheaper than replacing the entire dishwasher, and if your model is on the compatibility list below, installation is straightforward with basic hand tools.

Compatible Whirlpool Dishwasher Models

This circulation pump fits the following models. If you don't see yours listed, use the model number lookup on the product page to verify compatibility:

• WDT970SAHZ0 — Whirlpool
• WDT750SAHZ0 — Whirlpool
• WDT750SAHB0 — Whirlpool
• WDT750SAHM0 — Whirlpool
• WDT750SAHV0 — Whirlpool
• WDT730PAHZ0 — Whirlpool
• WDT730PAHW0 — Whirlpool
• WDT730PAHB0 — Whirlpool
• WDT730PAHV0 — Whirlpool
• WDTA50SAHZ0 — Whirlpool
• WDTA50SAHB0 — Whirlpool
• WDTA50SAHM0 — Whirlpool
• WDTA50SAHV0 — Whirlpool
• WDTA50SAHW0 — Whirlpool

What You'll Need for Installation

Replacing the circulation pump requires removing the lower spray arm and filter assembly to access the pump housing at the bottom of the tub. You'll need a 1/4-inch nut driver or socket set, a Phillips screwdriver, and towels to soak up residual water. The job takes about 45 minutes if you're comfortable working with appliances. Make sure to disconnect power at the breaker before you start — this pump runs on 120V and you don't want any surprises.

Signs Your Circulation Pump Is Failing

The most obvious symptom is poor cleaning performance — dishes that used to come out spotless now have food particles stuck to them even after a full cycle. You might also hear a loud humming or grinding noise during the wash cycle, which means the motor is struggling or the impeller is hitting something. Some pumps will start to leak from the seal, leaving water pooled at the bottom of the tub between cycles. In other cases, the dishwasher will start the cycle, run for 10-15 seconds, then shut off completely — that's usually the thermal protector kicking in because the motor is drawing too much current.

Order Your Replacement Pump

The W11084656 circulation pump assembly is in stock and ready to ship. It comes with a manufacturer warranty and fits the models listed above. If you're not sure about compatibility, check the model lookup tool on the product page or contact our parts specialists — we've got 20 years of experience matching parts to appliances, and we'll make sure you get the right component the first time.