4738EN2003A Genuine Tub to Pump Bellows Hose for LG Front Load Washing Machines WD-1433RD WD14700RD WD-10160TP WD12020D WD1207NCW WD1275TC5W

Part 4738EN2003A is the genuine LG bellows hose that connects the bottom of the outer tub to the drain pump on a front load washer. The part description names the WD1207NCW and WD1275TC5W, and it is also listed for models such as the WD-1433RD and WD-1438RD, the WD14700RD and WD12020D, and the older WD-10160TP. A split or blocked tub hose is a common cause of leaks and slow draining.

LG washer not draining or leaking underneath? Check the tub to pump hose

Every drop of water leaving the drum passes through this hose on its way to the pump. Its concertina section flexes as the tub moves, which over time leads to cracks in the folds, and the low point of the hose is where socks, coins, hair and lint like to collect. A blocked hose shows up as water left in the drum, a slow drain or a drain error, while a split one leaves water pooling under the machine, often only during the drain or spin.

Part details

• Genuine LG part 4738EN2003A
• Bellows hose from the outer tub to the drain pump
• Named for the LG WD1207NCW and WD1275TC5W
• Listed for WD-14, WD-10, WD-80 and WD1x020D series front loaders

Changing the tub to pump hose

Unplug the washer, turn off the taps and drain any water through the pump filter first, catching it in a shallow tray. Depending on the model, the hose is reached from the front or from underneath. Release the clamps at the tub and pump ends, clear any debris from both outlets, and fit the new hose so it isn't twisted. Run a drain and spin to check both clamps stay dry.

Questions about this part

How do I know the hose is blocked rather than the pump?

Check the pump filter first. If it's clear and the pump runs but water stays in the drum, the hose or pump inlet is likely blocked. If the pump is silent or only hums, the pump itself is the more likely fault.