LG Washer Drain Pump Assembly Parts — Models & Compatibility

If your LG top-load washer won't drain or leaves standing water after the wash cycle, the drain pump assembly is usually the culprit. This hub covers the AHA75673404 drain pump assembly — a direct replacement for LG and Kenmore washers in the WT7000 through WT7900 series. This single pump assembly fits dozens of models and replaces multiple part numbers including AP6978814, PS12748410, and AHA75673402.

Is This the Right Part for Your Model?

Check your washer's model number before ordering. You'll find it on a label inside the washer lid or on the back panel near the water inlet valves. If your model number starts with WT7 (like WT7060CW, WT7300CW, or WT7880HWA), this pump assembly will fit. The same part works across the entire WT7000-WT7900 series, which makes replacement straightforward once you've verified your model.

About This Replacement Part

The drain pump assembly is responsible for expelling water from the tub during the drain and spin cycles. When it fails, you'll notice standing water at the end of cycles or hear unusual grinding noises during drainage. This assembly includes the pump motor and housing as a complete unit. The most common symptoms pointing to pump failure are standing water that won't drain and drainage issues where water drains slowly or incompletely. LG designed this pump to handle the high water volumes of their large-capacity top-loaders, but over time, debris buildup or motor wear can cause failure. Replacing the entire assembly ensures reliable drainage and prevents water damage from overflow situations.

Compatible Model Series

This drain pump fits LG's popular WT7000 through WT7900 series top-load washers. These models share the same pump mounting configuration and electrical connections, making this a true universal replacement across the entire lineup. The model series includes both standard and high-efficiency versions with capacities ranging from 4.5 to 5.5 cubic feet.

Installation Overview

Accessing the drain pump requires tilting the washer back or laying it on its side to reach the pump from underneath. You'll disconnect the drain hoses, unplug the wire harness, remove the mounting screws, and install the new assembly in reverse order. Make sure to check the drain hoses for debris while you've got access — clogs in the hoses can mimic pump failure symptoms.